changed docker image to use dv for CVC
NOTE: Added testbenches will FAIL
added testbenches to configure the io in different modes:
- io_ports_bid: bidirectional
- io_ports_bid_gpio: bidirectional with only gpio_control_block
sdf_annotation
- io_ports_bid_nosdf: bidirectional with no sdf_annotation
- io_ports_nopull: input nopull
- io_ports_pulldown: input pulldown
- io_ports_pullup: input pullup
diff --git a/Makefile b/Makefile
index e787f93..6719339 100644
--- a/Makefile
+++ b/Makefile
@@ -74,19 +74,18 @@
dv-targets-gl-sdf=$(dv_patterns:%=verify-%-gl-sdf)
TARGET_PATH=$(shell pwd)
-verify_command="cd ${TARGET_PATH}/verilog/dv/$* && export SIM=${SIM} && make"
+verify_command="source ~/.bashrc && cd ${TARGET_PATH}/verilog/dv/$* && export SIM=${SIM} && make"
dv_base_dependencies=simenv
docker_run_verify=\
docker run -v ${TARGET_PATH}:${TARGET_PATH} -v ${PDK_ROOT}:${PDK_ROOT} \
-v ${CARAVEL_ROOT}:${CARAVEL_ROOT} \
-e TARGET_PATH=${TARGET_PATH} -e PDK_ROOT=${PDK_ROOT} \
-e CARAVEL_ROOT=${CARAVEL_ROOT} \
- -e TOOLS=/opt/riscv32i \
+ -e TOOLS=/foss/tools/riscv-gnu-toolchain-rv32i/217e7f3debe424d61374d31e33a091a630535937 \
-e DESIGNS=$(TARGET_PATH) \
-e CORE_VERILOG_PATH=$(TARGET_PATH)/mgmt_core_wrapper/verilog \
- -e GCC_PREFIX=riscv32-unknown-elf \
-e MCW_ROOT=$(MCW_ROOT) \
- -u $$(id -u $$USER):$$(id -g $$USER) efabless/dv_setup:latest \
+ -u $$(id -u $$USER):$$(id -g $$USER) efabless/dv:latest \
sh -c $(verify_command)
.PHONY: harden
diff --git a/verilog/dv/io_ports_bid/Makefile b/verilog/dv/io_ports_bid/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/io_ports_bid/Makefile
@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
+
+PWDD := $(shell pwd)
+BLOCKS := $(shell basename $(PWDD))
+
+# ---- Include Partitioned Makefiles ----
+
+CONFIG = caravel_user_project
+
+
+include $(MCW_ROOT)/verilog/dv/make/env.makefile
+include $(MCW_ROOT)/verilog/dv/make/var.makefile
+include $(MCW_ROOT)/verilog/dv/make/cpu.makefile
+include $(MCW_ROOT)/verilog/dv/make/sim.makefile
+
+
diff --git a/verilog/dv/io_ports_bid/io_ports_bid.c b/verilog/dv/io_ports_bid/io_ports_bid.c
new file mode 100644
index 0000000..4405eec
--- /dev/null
+++ b/verilog/dv/io_ports_bid/io_ports_bid.c
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Efabless Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include <defs.h>
+#include <stub.c>
+
+/*
+ IO Test:
+ - Configures MPRJ lower 8-IO pins as outputs
+ - Observes counter value through the MPRJ lower 8 IO pins (in the testbench)
+*/
+
+void main()
+{
+ /*
+ IO Control Registers
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit |
+
+ Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_MGMT_STD_BIDIRECTIONAL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
+
+
+ Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
+
+ */
+
+ /* Set up the housekeeping SPI to be connected internally so */
+ /* that external pin changes don't affect it. */
+
+ // reg_spi_enable = 1;
+ // reg_spimaster_cs = 0x10001;
+ // reg_spimaster_control = 0x0801;
+
+ // reg_spimaster_control = 0xa002; // Enable, prescaler = 2,
+ // connect to housekeeping SPI
+
+ // Connect the housekeeping SPI to the SPI master
+ // so that the CSB line is not left floating. This allows
+ // all of the GPIO pins to be used for user functions.
+
+ // Configure lower 8-IOs as user output
+ // Observe counter value in the testbench
+ reg_mprj_io_0 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_1 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_2 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_3 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_4 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_5 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_6 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_7 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+
+ /* Apply configuration */
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+}
+
diff --git a/verilog/dv/io_ports_bid/io_ports_bid_tb.v b/verilog/dv/io_ports_bid/io_ports_bid_tb.v
new file mode 100644
index 0000000..af9e9d2
--- /dev/null
+++ b/verilog/dv/io_ports_bid/io_ports_bid_tb.v
@@ -0,0 +1,266 @@
+// SPDX-FileCopyrightText: 2020 Efabless Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+`default_nettype none
+
+`timescale 1 ns / 1 ps
+
+module io_ports_bid_tb;
+ reg clock;
+ reg RSTB;
+ reg CSB;
+ reg power1, power2;
+ reg power3, power4;
+
+ wire gpio;
+ wire [37:0] mprj_io;
+ wire [7:0] mprj_io_0;
+
+ assign mprj_io_0 = mprj_io[7:0];
+ // assign mprj_io_0 = {mprj_io[8:4],mprj_io[2:0]};
+
+ assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+ // assign mprj_io[3] = 1'b1;
+
+ // External clock is used by default. Make this artificially fast for the
+ // simulation. Normally this would be a slow clock and the digital PLL
+ // would be the fast clock.
+
+ always #12.5 clock <= (clock === 1'b0);
+
+ initial begin
+ clock = 0;
+ end
+
+
+ `ifdef ENABLE_SDF
+ initial begin
+ $sdf_annotate("../../../sdf/user_proj_example.sdf", uut.mprj) ;
+ $sdf_annotate("../../../sdf/user_project_wrapper.sdf", uut.mprj.mprj) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/DFFRAM.sdf", uut.soc.DFFRAM_0) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/mgmt_core.sdf", uut.soc.core) ;
+ $sdf_annotate("../../../caravel/sdf/housekeeping.sdf", uut.housekeeping) ;
+ $sdf_annotate("../../../caravel/sdf/chip_io.sdf", uut.padframe) ;
+ $sdf_annotate("../../../caravel/sdf/mprj_logic_high.sdf", uut.mgmt_buffers.mprj_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mprj2_logic_high.sdf", uut.mgmt_buffers.mprj2_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect_hv.sdf", uut.mgmt_buffers.powergood_check) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect.sdf", uut.mgmt_buffers) ;
+ $sdf_annotate("../../../caravel/sdf/caravel_clocking.sdf", uut.clocking) ;
+ $sdf_annotate("../../../caravel/sdf/digital_pll.sdf", uut.pll) ;
+ $sdf_annotate("../../../caravel/sdf/xres_buf.sdf", uut.rstb_level) ;
+ $sdf_annotate("../../../caravel/sdf/user_id_programming.sdf", uut.user_id_value) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[11] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[12] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[13] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[14] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[15] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_0) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_1) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_2) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_3) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_4) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_5) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_6) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_7) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_8) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_9) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_10) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_11) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_12) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_13) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_14) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_15) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_16) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_17) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_18) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_19) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_20) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_21) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_22) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_23) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_24) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_25) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_26) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_27) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_28) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_29) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_30) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_31) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_32) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_33) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_34) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_35) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_36) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_37) ;
+ end
+ `endif
+
+ initial begin
+ $dumpfile("io_ports_bid.vcd");
+ $dumpvars(0, io_ports_bid_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (25) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ initial begin
+ // Observe Output pins [7:0]
+ wait(mprj_io_0 == 8'h01);
+ wait(mprj_io_0 == 8'h02);
+ wait(mprj_io_0 == 8'h03);
+ wait(mprj_io_0 == 8'h04);
+ wait(mprj_io_0 == 8'h05);
+ wait(mprj_io_0 == 8'h06);
+ wait(mprj_io_0 == 8'h07);
+ wait(mprj_io_0 == 8'h08);
+ wait(mprj_io_0 == 8'h09);
+ wait(mprj_io_0 == 8'h0A);
+ wait(mprj_io_0 == 8'hFF);
+ wait(mprj_io_0 == 8'h00);
+
+ `ifdef GL
+ $display("Monitor: Test 1 Mega-Project IO (GL) Passed");
+ `else
+ $display("Monitor: Test 1 Mega-Project IO (RTL) Passed");
+ `endif
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #3_00_000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ power3 <= 1'b0;
+ power4 <= 1'b0;
+ #100;
+ power1 <= 1'b1;
+ #100;
+ power2 <= 1'b1;
+ #100;
+ power3 <= 1'b1;
+ #100;
+ power4 <= 1'b1;
+ end
+
+ always @(mprj_io) begin
+ #1 $display("MPRJ-IO state = %b ", mprj_io[7:0]);
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD3V3;
+ wire VDD1V8;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ caravel uut (
+ .vddio (VDD3V3),
+ .vddio_2 (VDD3V3),
+ .vssio (VSS),
+ .vssio_2 (VSS),
+ .vdda (VDD3V3),
+ .vssa (VSS),
+ .vccd (VDD1V8),
+ .vssd (VSS),
+ .vdda1 (VDD3V3),
+ .vdda1_2 (VDD3V3),
+ .vdda2 (VDD3V3),
+ .vssa1 (VSS),
+ .vssa1_2 (VSS),
+ .vssa2 (VSS),
+ .vccd1 (VDD1V8),
+ .vccd2 (VDD1V8),
+ .vssd1 (VSS),
+ .vssd2 (VSS),
+ .clock (clock),
+ .gpio (gpio),
+ .mprj_io (mprj_io),
+ .flash_csb(flash_csb),
+ .flash_clk(flash_clk),
+ .flash_io0(flash_io0),
+ .flash_io1(flash_io1),
+ .resetb (RSTB)
+ );
+
+ spiflash #(
+ .FILENAME("io_ports_bid.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/io_ports_bid_gpio/Makefile b/verilog/dv/io_ports_bid_gpio/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/io_ports_bid_gpio/Makefile
@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
+
+PWDD := $(shell pwd)
+BLOCKS := $(shell basename $(PWDD))
+
+# ---- Include Partitioned Makefiles ----
+
+CONFIG = caravel_user_project
+
+
+include $(MCW_ROOT)/verilog/dv/make/env.makefile
+include $(MCW_ROOT)/verilog/dv/make/var.makefile
+include $(MCW_ROOT)/verilog/dv/make/cpu.makefile
+include $(MCW_ROOT)/verilog/dv/make/sim.makefile
+
+
diff --git a/verilog/dv/io_ports_bid_gpio/io_ports_bid_gpio.c b/verilog/dv/io_ports_bid_gpio/io_ports_bid_gpio.c
new file mode 100644
index 0000000..4405eec
--- /dev/null
+++ b/verilog/dv/io_ports_bid_gpio/io_ports_bid_gpio.c
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Efabless Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include <defs.h>
+#include <stub.c>
+
+/*
+ IO Test:
+ - Configures MPRJ lower 8-IO pins as outputs
+ - Observes counter value through the MPRJ lower 8 IO pins (in the testbench)
+*/
+
+void main()
+{
+ /*
+ IO Control Registers
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit |
+
+ Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_MGMT_STD_BIDIRECTIONAL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
+
+
+ Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
+
+ */
+
+ /* Set up the housekeeping SPI to be connected internally so */
+ /* that external pin changes don't affect it. */
+
+ // reg_spi_enable = 1;
+ // reg_spimaster_cs = 0x10001;
+ // reg_spimaster_control = 0x0801;
+
+ // reg_spimaster_control = 0xa002; // Enable, prescaler = 2,
+ // connect to housekeeping SPI
+
+ // Connect the housekeeping SPI to the SPI master
+ // so that the CSB line is not left floating. This allows
+ // all of the GPIO pins to be used for user functions.
+
+ // Configure lower 8-IOs as user output
+ // Observe counter value in the testbench
+ reg_mprj_io_0 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_1 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_2 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_3 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_4 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_5 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_6 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_7 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+
+ /* Apply configuration */
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+}
+
diff --git a/verilog/dv/io_ports_bid_gpio/io_ports_bid_gpio_tb.v b/verilog/dv/io_ports_bid_gpio/io_ports_bid_gpio_tb.v
new file mode 100644
index 0000000..4cabc27
--- /dev/null
+++ b/verilog/dv/io_ports_bid_gpio/io_ports_bid_gpio_tb.v
@@ -0,0 +1,266 @@
+// SPDX-FileCopyrightText: 2020 Efabless Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+`default_nettype none
+
+`timescale 1 ns / 1 ps
+
+module io_ports_bid_gpio_tb;
+ reg clock;
+ reg RSTB;
+ reg CSB;
+ reg power1, power2;
+ reg power3, power4;
+
+ wire gpio;
+ wire [37:0] mprj_io;
+ wire [7:0] mprj_io_0;
+
+ assign mprj_io_0 = mprj_io[7:0];
+ // assign mprj_io_0 = {mprj_io[8:4],mprj_io[2:0]};
+
+ assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+ // assign mprj_io[3] = 1'b1;
+
+ // External clock is used by default. Make this artificially fast for the
+ // simulation. Normally this would be a slow clock and the digital PLL
+ // would be the fast clock.
+
+ always #12.5 clock <= (clock === 1'b0);
+
+ initial begin
+ clock = 0;
+ end
+
+
+ `ifdef ENABLE_SDF
+ initial begin
+ //$sdf_annotate("../../../sdf/user_proj_example.sdf", uut.mprj) ;
+ //$sdf_annotate("../../../sdf/user_project_wrapper.sdf", uut.mprj.mprj) ;
+ //$sdf_annotate("../../../mgmt_core_wrapper/sdf/DFFRAM.sdf", uut.soc.DFFRAM_0) ;
+ //$sdf_annotate("../../../mgmt_core_wrapper/sdf/mgmt_core.sdf", uut.soc.core) ;
+ //$sdf_annotate("../../../caravel/sdf/housekeeping.sdf", uut.housekeeping) ;
+ //$sdf_annotate("../../../caravel/sdf/chip_io.sdf", uut.padframe) ;
+ //$sdf_annotate("../../../caravel/sdf/mprj_logic_high.sdf", uut.mgmt_buffers.mprj_logic_high_inst) ;
+ //$sdf_annotate("../../../caravel/sdf/mprj2_logic_high.sdf", uut.mgmt_buffers.mprj2_logic_high_inst) ;
+ //$sdf_annotate("../../../caravel/sdf/mgmt_protect_hv.sdf", uut.mgmt_buffers.powergood_check) ;
+ //$sdf_annotate("../../../caravel/sdf/mgmt_protect.sdf", uut.mgmt_buffers) ;
+ //$sdf_annotate("../../../caravel/sdf/caravel_clocking.sdf", uut.clocking) ;
+ //$sdf_annotate("../../../caravel/sdf/digital_pll.sdf", uut.pll) ;
+ //$sdf_annotate("../../../caravel/sdf/xres_buf.sdf", uut.rstb_level) ;
+ //$sdf_annotate("../../../caravel/sdf/user_id_programming.sdf", uut.user_id_value) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[11] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[12] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[13] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[14] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[15] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_0) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_1) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_2) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_3) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_4) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_5) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_6) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_7) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_8) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_9) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_10) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_11) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_12) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_13) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_14) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_15) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_16) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_17) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_18) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_19) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_20) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_21) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_22) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_23) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_24) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_25) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_26) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_27) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_28) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_29) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_30) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_31) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_32) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_33) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_34) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_35) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_36) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_37) ;
+ end
+ `endif
+
+ initial begin
+ $dumpfile("io_ports_bid_gpio.vcd");
+ $dumpvars(0, io_ports_bid_gpio_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (15) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ initial begin
+ // Observe Output pins [7:0]
+ wait(mprj_io_0 == 8'h01);
+ wait(mprj_io_0 == 8'h02);
+ wait(mprj_io_0 == 8'h03);
+ wait(mprj_io_0 == 8'h04);
+ wait(mprj_io_0 == 8'h05);
+ wait(mprj_io_0 == 8'h06);
+ wait(mprj_io_0 == 8'h07);
+ wait(mprj_io_0 == 8'h08);
+ wait(mprj_io_0 == 8'h09);
+ wait(mprj_io_0 == 8'h0A);
+ wait(mprj_io_0 == 8'hFF);
+ wait(mprj_io_0 == 8'h00);
+
+ `ifdef GL
+ $display("Monitor: Test 1 Mega-Project IO (GL) Passed");
+ `else
+ $display("Monitor: Test 1 Mega-Project IO (RTL) Passed");
+ `endif
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #3_00_000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ power3 <= 1'b0;
+ power4 <= 1'b0;
+ #100;
+ power1 <= 1'b1;
+ #100;
+ power2 <= 1'b1;
+ #100;
+ power3 <= 1'b1;
+ #100;
+ power4 <= 1'b1;
+ end
+
+ always @(mprj_io) begin
+ #1 $display("MPRJ-IO state = %b ", mprj_io[7:0]);
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD3V3;
+ wire VDD1V8;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ caravel uut (
+ .vddio (VDD3V3),
+ .vddio_2 (VDD3V3),
+ .vssio (VSS),
+ .vssio_2 (VSS),
+ .vdda (VDD3V3),
+ .vssa (VSS),
+ .vccd (VDD1V8),
+ .vssd (VSS),
+ .vdda1 (VDD3V3),
+ .vdda1_2 (VDD3V3),
+ .vdda2 (VDD3V3),
+ .vssa1 (VSS),
+ .vssa1_2 (VSS),
+ .vssa2 (VSS),
+ .vccd1 (VDD1V8),
+ .vccd2 (VDD1V8),
+ .vssd1 (VSS),
+ .vssd2 (VSS),
+ .clock (clock),
+ .gpio (gpio),
+ .mprj_io (mprj_io),
+ .flash_csb(flash_csb),
+ .flash_clk(flash_clk),
+ .flash_io0(flash_io0),
+ .flash_io1(flash_io1),
+ .resetb (RSTB)
+ );
+
+ spiflash #(
+ .FILENAME("io_ports_bid_gpio.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/io_ports_bid_nosdf/Makefile b/verilog/dv/io_ports_bid_nosdf/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/io_ports_bid_nosdf/Makefile
@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
+
+PWDD := $(shell pwd)
+BLOCKS := $(shell basename $(PWDD))
+
+# ---- Include Partitioned Makefiles ----
+
+CONFIG = caravel_user_project
+
+
+include $(MCW_ROOT)/verilog/dv/make/env.makefile
+include $(MCW_ROOT)/verilog/dv/make/var.makefile
+include $(MCW_ROOT)/verilog/dv/make/cpu.makefile
+include $(MCW_ROOT)/verilog/dv/make/sim.makefile
+
+
diff --git a/verilog/dv/io_ports_bid_nosdf/io_ports_bid_nosdf.c b/verilog/dv/io_ports_bid_nosdf/io_ports_bid_nosdf.c
new file mode 100644
index 0000000..4405eec
--- /dev/null
+++ b/verilog/dv/io_ports_bid_nosdf/io_ports_bid_nosdf.c
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Efabless Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include <defs.h>
+#include <stub.c>
+
+/*
+ IO Test:
+ - Configures MPRJ lower 8-IO pins as outputs
+ - Observes counter value through the MPRJ lower 8 IO pins (in the testbench)
+*/
+
+void main()
+{
+ /*
+ IO Control Registers
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit |
+
+ Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_MGMT_STD_BIDIRECTIONAL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
+
+
+ Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
+
+ */
+
+ /* Set up the housekeeping SPI to be connected internally so */
+ /* that external pin changes don't affect it. */
+
+ // reg_spi_enable = 1;
+ // reg_spimaster_cs = 0x10001;
+ // reg_spimaster_control = 0x0801;
+
+ // reg_spimaster_control = 0xa002; // Enable, prescaler = 2,
+ // connect to housekeeping SPI
+
+ // Connect the housekeeping SPI to the SPI master
+ // so that the CSB line is not left floating. This allows
+ // all of the GPIO pins to be used for user functions.
+
+ // Configure lower 8-IOs as user output
+ // Observe counter value in the testbench
+ reg_mprj_io_0 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_1 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_2 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_3 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_4 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_5 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_6 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+ reg_mprj_io_7 = GPIO_MODE_MGMT_STD_BIDIRECTIONAL;
+
+ /* Apply configuration */
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+}
+
diff --git a/verilog/dv/io_ports_bid_nosdf/io_ports_bid_nosdf_tb.v b/verilog/dv/io_ports_bid_nosdf/io_ports_bid_nosdf_tb.v
new file mode 100644
index 0000000..3517854
--- /dev/null
+++ b/verilog/dv/io_ports_bid_nosdf/io_ports_bid_nosdf_tb.v
@@ -0,0 +1,266 @@
+// SPDX-FileCopyrightText: 2020 Efabless Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+`default_nettype none
+
+`timescale 1 ns / 1 ps
+
+module io_ports_bid_nosdf_tb;
+ reg clock;
+ reg RSTB;
+ reg CSB;
+ reg power1, power2;
+ reg power3, power4;
+
+ wire gpio;
+ wire [37:0] mprj_io;
+ wire [7:0] mprj_io_0;
+
+ assign mprj_io_0 = mprj_io[7:0];
+ // assign mprj_io_0 = {mprj_io[8:4],mprj_io[2:0]};
+
+ assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+ // assign mprj_io[3] = 1'b1;
+
+ // External clock is used by default. Make this artificially fast for the
+ // simulation. Normally this would be a slow clock and the digital PLL
+ // would be the fast clock.
+
+ always #12.5 clock <= (clock === 1'b0);
+
+ initial begin
+ clock = 0;
+ end
+
+
+ `ifdef ENABLE_SDF
+ initial begin
+ //$sdf_annotate("../../../sdf/user_proj_example.sdf", uut.mprj) ;
+ //$sdf_annotate("../../../sdf/user_project_wrapper.sdf", uut.mprj.mprj) ;
+ //$sdf_annotate("../../../mgmt_core_wrapper/sdf/DFFRAM.sdf", uut.soc.DFFRAM_0) ;
+ //$sdf_annotate("../../../mgmt_core_wrapper/sdf/mgmt_core.sdf", uut.soc.core) ;
+ //$sdf_annotate("../../../caravel/sdf/housekeeping.sdf", uut.housekeeping) ;
+ //$sdf_annotate("../../../caravel/sdf/chip_io.sdf", uut.padframe) ;
+ //$sdf_annotate("../../../caravel/sdf/mprj_logic_high.sdf", uut.mgmt_buffers.mprj_logic_high_inst) ;
+ //$sdf_annotate("../../../caravel/sdf/mprj2_logic_high.sdf", uut.mgmt_buffers.mprj2_logic_high_inst) ;
+ //$sdf_annotate("../../../caravel/sdf/mgmt_protect_hv.sdf", uut.mgmt_buffers.powergood_check) ;
+ //$sdf_annotate("../../../caravel/sdf/mgmt_protect.sdf", uut.mgmt_buffers) ;
+ //$sdf_annotate("../../../caravel/sdf/caravel_clocking.sdf", uut.clocking) ;
+ //$sdf_annotate("../../../caravel/sdf/digital_pll.sdf", uut.pll) ;
+ //$sdf_annotate("../../../caravel/sdf/xres_buf.sdf", uut.rstb_level) ;
+ //$sdf_annotate("../../../caravel/sdf/user_id_programming.sdf", uut.user_id_value) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[0] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[1] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[1] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[2] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[0] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[1] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[2] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[3] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[4] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[5] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[6] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[7] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[8] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[9] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[10] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[0] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[1] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[2] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[3] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[4] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[5] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[0] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[1] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[2] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[3] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[4] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[5] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[6] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[7] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[8] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[9] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[10] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[11] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[12] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[13] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[14] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[15] ) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_0) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_1) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_2) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_3) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_4) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_5) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_6) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_7) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_8) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_9) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_10) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_11) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_12) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_13) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_14) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_15) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_16) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_17) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_18) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_19) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_20) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_21) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_22) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_23) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_24) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_25) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_26) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_27) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_28) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_29) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_30) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_31) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_32) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_33) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_34) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_35) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_36) ;
+ //$sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_37) ;
+ end
+ `endif
+
+ initial begin
+ $dumpfile("io_ports_bid_nosdf.vcd");
+ $dumpvars(0, io_ports_bid_nosdf_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (15) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ initial begin
+ // Observe Output pins [7:0]
+ wait(mprj_io_0 == 8'h01);
+ wait(mprj_io_0 == 8'h02);
+ wait(mprj_io_0 == 8'h03);
+ wait(mprj_io_0 == 8'h04);
+ wait(mprj_io_0 == 8'h05);
+ wait(mprj_io_0 == 8'h06);
+ wait(mprj_io_0 == 8'h07);
+ wait(mprj_io_0 == 8'h08);
+ wait(mprj_io_0 == 8'h09);
+ wait(mprj_io_0 == 8'h0A);
+ wait(mprj_io_0 == 8'hFF);
+ wait(mprj_io_0 == 8'h00);
+
+ `ifdef GL
+ $display("Monitor: Test 1 Mega-Project IO (GL) Passed");
+ `else
+ $display("Monitor: Test 1 Mega-Project IO (RTL) Passed");
+ `endif
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #3_00_000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ power3 <= 1'b0;
+ power4 <= 1'b0;
+ #100;
+ power1 <= 1'b1;
+ #100;
+ power2 <= 1'b1;
+ #100;
+ power3 <= 1'b1;
+ #100;
+ power4 <= 1'b1;
+ end
+
+ always @(mprj_io) begin
+ #1 $display("MPRJ-IO state = %b ", mprj_io[7:0]);
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD3V3;
+ wire VDD1V8;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ caravel uut (
+ .vddio (VDD3V3),
+ .vddio_2 (VDD3V3),
+ .vssio (VSS),
+ .vssio_2 (VSS),
+ .vdda (VDD3V3),
+ .vssa (VSS),
+ .vccd (VDD1V8),
+ .vssd (VSS),
+ .vdda1 (VDD3V3),
+ .vdda1_2 (VDD3V3),
+ .vdda2 (VDD3V3),
+ .vssa1 (VSS),
+ .vssa1_2 (VSS),
+ .vssa2 (VSS),
+ .vccd1 (VDD1V8),
+ .vccd2 (VDD1V8),
+ .vssd1 (VSS),
+ .vssd2 (VSS),
+ .clock (clock),
+ .gpio (gpio),
+ .mprj_io (mprj_io),
+ .flash_csb(flash_csb),
+ .flash_clk(flash_clk),
+ .flash_io0(flash_io0),
+ .flash_io1(flash_io1),
+ .resetb (RSTB)
+ );
+
+ spiflash #(
+ .FILENAME("io_ports_bid_nosdf.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/io_ports_nopull/Makefile b/verilog/dv/io_ports_nopull/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/io_ports_nopull/Makefile
@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
+
+PWDD := $(shell pwd)
+BLOCKS := $(shell basename $(PWDD))
+
+# ---- Include Partitioned Makefiles ----
+
+CONFIG = caravel_user_project
+
+
+include $(MCW_ROOT)/verilog/dv/make/env.makefile
+include $(MCW_ROOT)/verilog/dv/make/var.makefile
+include $(MCW_ROOT)/verilog/dv/make/cpu.makefile
+include $(MCW_ROOT)/verilog/dv/make/sim.makefile
+
+
diff --git a/verilog/dv/io_ports_nopull/io_ports_nopull.c b/verilog/dv/io_ports_nopull/io_ports_nopull.c
new file mode 100644
index 0000000..fdf2898
--- /dev/null
+++ b/verilog/dv/io_ports_nopull/io_ports_nopull.c
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Efabless Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include <defs.h>
+#include <stub.c>
+
+/*
+ IO Test:
+ - Configures MPRJ lower 8-IO pins as outputs
+ - Observes counter value through the MPRJ lower 8 IO pins (in the testbench)
+*/
+
+void main()
+{
+ /*
+ IO Control Registers
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit |
+
+ Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_MGMT_STD_INPUT_NOPULL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
+
+
+ Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
+
+ */
+
+ /* Set up the housekeeping SPI to be connected internally so */
+ /* that external pin changes don't affect it. */
+
+ // reg_spi_enable = 1;
+ // reg_spimaster_cs = 0x10001;
+ // reg_spimaster_control = 0x0801;
+
+ // reg_spimaster_control = 0xa002; // Enable, prescaler = 2,
+ // connect to housekeeping SPI
+
+ // Connect the housekeeping SPI to the SPI master
+ // so that the CSB line is not left floating. This allows
+ // all of the GPIO pins to be used for user functions.
+
+ // Configure lower 8-IOs as user output
+ // Observe counter value in the testbench
+ reg_mprj_io_0 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+ reg_mprj_io_1 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+ reg_mprj_io_2 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+ reg_mprj_io_3 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+ reg_mprj_io_4 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+ reg_mprj_io_5 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+ reg_mprj_io_6 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+ reg_mprj_io_7 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
+
+ /* Apply configuration */
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+}
+
diff --git a/verilog/dv/io_ports_nopull/io_ports_nopull_tb.v b/verilog/dv/io_ports_nopull/io_ports_nopull_tb.v
new file mode 100644
index 0000000..f0b08df
--- /dev/null
+++ b/verilog/dv/io_ports_nopull/io_ports_nopull_tb.v
@@ -0,0 +1,266 @@
+// SPDX-FileCopyrightText: 2020 Efabless Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+`default_nettype none
+
+`timescale 1 ns / 1 ps
+
+module io_ports_nopull_tb;
+ reg clock;
+ reg RSTB;
+ reg CSB;
+ reg power1, power2;
+ reg power3, power4;
+
+ wire gpio;
+ wire [37:0] mprj_io;
+ wire [7:0] mprj_io_0;
+
+ assign mprj_io_0 = mprj_io[7:0];
+ // assign mprj_io_0 = {mprj_io[8:4],mprj_io[2:0]};
+
+ assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+ // assign mprj_io[3] = 1'b1;
+
+ // External clock is used by default. Make this artificially fast for the
+ // simulation. Normally this would be a slow clock and the digital PLL
+ // would be the fast clock.
+
+ always #12.5 clock <= (clock === 1'b0);
+
+ initial begin
+ clock = 0;
+ end
+
+
+ `ifdef ENABLE_SDF
+ initial begin
+ $sdf_annotate("../../../sdf/user_proj_example.sdf", uut.mprj) ;
+ $sdf_annotate("../../../sdf/user_project_wrapper.sdf", uut.mprj.mprj) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/DFFRAM.sdf", uut.soc.DFFRAM_0) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/mgmt_core.sdf", uut.soc.core) ;
+ $sdf_annotate("../../../caravel/sdf/housekeeping.sdf", uut.housekeeping) ;
+ $sdf_annotate("../../../caravel/sdf/chip_io.sdf", uut.padframe) ;
+ $sdf_annotate("../../../caravel/sdf/mprj_logic_high.sdf", uut.mgmt_buffers.mprj_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mprj2_logic_high.sdf", uut.mgmt_buffers.mprj2_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect_hv.sdf", uut.mgmt_buffers.powergood_check) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect.sdf", uut.mgmt_buffers) ;
+ $sdf_annotate("../../../caravel/sdf/caravel_clocking.sdf", uut.clocking) ;
+ $sdf_annotate("../../../caravel/sdf/digital_pll.sdf", uut.pll) ;
+ $sdf_annotate("../../../caravel/sdf/xres_buf.sdf", uut.rstb_level) ;
+ $sdf_annotate("../../../caravel/sdf/user_id_programming.sdf", uut.user_id_value) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[11] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[12] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[13] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[14] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[15] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_0) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_1) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_2) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_3) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_4) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_5) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_6) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_7) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_8) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_9) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_10) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_11) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_12) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_13) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_14) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_15) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_16) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_17) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_18) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_19) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_20) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_21) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_22) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_23) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_24) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_25) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_26) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_27) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_28) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_29) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_30) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_31) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_32) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_33) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_34) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_35) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_36) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_37) ;
+ end
+ `endif
+
+ initial begin
+ $dumpfile("io_ports_nopull.vcd");
+ $dumpvars(0, io_ports_nopull_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (25) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ initial begin
+ // Observe Output pins [7:0]
+ wait(mprj_io_0 == 8'h01);
+ wait(mprj_io_0 == 8'h02);
+ wait(mprj_io_0 == 8'h03);
+ wait(mprj_io_0 == 8'h04);
+ wait(mprj_io_0 == 8'h05);
+ wait(mprj_io_0 == 8'h06);
+ wait(mprj_io_0 == 8'h07);
+ wait(mprj_io_0 == 8'h08);
+ wait(mprj_io_0 == 8'h09);
+ wait(mprj_io_0 == 8'h0A);
+ wait(mprj_io_0 == 8'hFF);
+ wait(mprj_io_0 == 8'h00);
+
+ `ifdef GL
+ $display("Monitor: Test 1 Mega-Project IO (GL) Passed");
+ `else
+ $display("Monitor: Test 1 Mega-Project IO (RTL) Passed");
+ `endif
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #3_00_000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ power3 <= 1'b0;
+ power4 <= 1'b0;
+ #100;
+ power1 <= 1'b1;
+ #100;
+ power2 <= 1'b1;
+ #100;
+ power3 <= 1'b1;
+ #100;
+ power4 <= 1'b1;
+ end
+
+ always @(mprj_io) begin
+ #1 $display("MPRJ-IO state = %b ", mprj_io[7:0]);
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD3V3;
+ wire VDD1V8;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ caravel uut (
+ .vddio (VDD3V3),
+ .vddio_2 (VDD3V3),
+ .vssio (VSS),
+ .vssio_2 (VSS),
+ .vdda (VDD3V3),
+ .vssa (VSS),
+ .vccd (VDD1V8),
+ .vssd (VSS),
+ .vdda1 (VDD3V3),
+ .vdda1_2 (VDD3V3),
+ .vdda2 (VDD3V3),
+ .vssa1 (VSS),
+ .vssa1_2 (VSS),
+ .vssa2 (VSS),
+ .vccd1 (VDD1V8),
+ .vccd2 (VDD1V8),
+ .vssd1 (VSS),
+ .vssd2 (VSS),
+ .clock (clock),
+ .gpio (gpio),
+ .mprj_io (mprj_io),
+ .flash_csb(flash_csb),
+ .flash_clk(flash_clk),
+ .flash_io0(flash_io0),
+ .flash_io1(flash_io1),
+ .resetb (RSTB)
+ );
+
+ spiflash #(
+ .FILENAME("io_ports_nopull.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/io_ports_pulldown/Makefile b/verilog/dv/io_ports_pulldown/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/io_ports_pulldown/Makefile
@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
+
+PWDD := $(shell pwd)
+BLOCKS := $(shell basename $(PWDD))
+
+# ---- Include Partitioned Makefiles ----
+
+CONFIG = caravel_user_project
+
+
+include $(MCW_ROOT)/verilog/dv/make/env.makefile
+include $(MCW_ROOT)/verilog/dv/make/var.makefile
+include $(MCW_ROOT)/verilog/dv/make/cpu.makefile
+include $(MCW_ROOT)/verilog/dv/make/sim.makefile
+
+
diff --git a/verilog/dv/io_ports_pulldown/io_ports_pulldown.c b/verilog/dv/io_ports_pulldown/io_ports_pulldown.c
new file mode 100644
index 0000000..ec8586e
--- /dev/null
+++ b/verilog/dv/io_ports_pulldown/io_ports_pulldown.c
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Efabless Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include <defs.h>
+#include <stub.c>
+
+/*
+ IO Test:
+ - Configures MPRJ lower 8-IO pins as outputs
+ - Observes counter value through the MPRJ lower 8 IO pins (in the testbench)
+*/
+
+void main()
+{
+ /*
+ IO Control Registers
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit |
+
+ Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
+
+
+ Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
+
+ */
+
+ /* Set up the housekeeping SPI to be connected internally so */
+ /* that external pin changes don't affect it. */
+
+ // reg_spi_enable = 1;
+ // reg_spimaster_cs = 0x10001;
+ // reg_spimaster_control = 0x0801;
+
+ // reg_spimaster_control = 0xa002; // Enable, prescaler = 2,
+ // connect to housekeeping SPI
+
+ // Connect the housekeeping SPI to the SPI master
+ // so that the CSB line is not left floating. This allows
+ // all of the GPIO pins to be used for user functions.
+
+ // Configure lower 8-IOs as user output
+ // Observe counter value in the testbench
+ reg_mprj_io_0 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+ reg_mprj_io_1 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+ reg_mprj_io_2 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+ reg_mprj_io_3 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+ reg_mprj_io_4 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+ reg_mprj_io_5 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+ reg_mprj_io_6 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+ reg_mprj_io_7 = GPIO_MODE_MGMT_STD_INPUT_PULLDOWN;
+
+ /* Apply configuration */
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+}
+
diff --git a/verilog/dv/io_ports_pulldown/io_ports_pulldown_tb.v b/verilog/dv/io_ports_pulldown/io_ports_pulldown_tb.v
new file mode 100644
index 0000000..9561029
--- /dev/null
+++ b/verilog/dv/io_ports_pulldown/io_ports_pulldown_tb.v
@@ -0,0 +1,266 @@
+// SPDX-FileCopyrightText: 2020 Efabless Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+`default_nettype none
+
+`timescale 1 ns / 1 ps
+
+module io_ports_pulldown_tb;
+ reg clock;
+ reg RSTB;
+ reg CSB;
+ reg power1, power2;
+ reg power3, power4;
+
+ wire gpio;
+ wire [37:0] mprj_io;
+ wire [7:0] mprj_io_0;
+
+ assign mprj_io_0 = mprj_io[7:0];
+ // assign mprj_io_0 = {mprj_io[8:4],mprj_io[2:0]};
+
+ assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+ // assign mprj_io[3] = 1'b1;
+
+ // External clock is used by default. Make this artificially fast for the
+ // simulation. Normally this would be a slow clock and the digital PLL
+ // would be the fast clock.
+
+ always #12.5 clock <= (clock === 1'b0);
+
+ initial begin
+ clock = 0;
+ end
+
+
+ `ifdef ENABLE_SDF
+ initial begin
+ $sdf_annotate("../../../sdf/user_proj_example.sdf", uut.mprj) ;
+ $sdf_annotate("../../../sdf/user_project_wrapper.sdf", uut.mprj.mprj) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/DFFRAM.sdf", uut.soc.DFFRAM_0) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/mgmt_core.sdf", uut.soc.core) ;
+ $sdf_annotate("../../../caravel/sdf/housekeeping.sdf", uut.housekeeping) ;
+ $sdf_annotate("../../../caravel/sdf/chip_io.sdf", uut.padframe) ;
+ $sdf_annotate("../../../caravel/sdf/mprj_logic_high.sdf", uut.mgmt_buffers.mprj_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mprj2_logic_high.sdf", uut.mgmt_buffers.mprj2_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect_hv.sdf", uut.mgmt_buffers.powergood_check) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect.sdf", uut.mgmt_buffers) ;
+ $sdf_annotate("../../../caravel/sdf/caravel_clocking.sdf", uut.clocking) ;
+ $sdf_annotate("../../../caravel/sdf/digital_pll.sdf", uut.pll) ;
+ $sdf_annotate("../../../caravel/sdf/xres_buf.sdf", uut.rstb_level) ;
+ $sdf_annotate("../../../caravel/sdf/user_id_programming.sdf", uut.user_id_value) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[11] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[12] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[13] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[14] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[15] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_0) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_1) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_2) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_3) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_4) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_5) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_6) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_7) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_8) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_9) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_10) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_11) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_12) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_13) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_14) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_15) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_16) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_17) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_18) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_19) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_20) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_21) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_22) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_23) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_24) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_25) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_26) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_27) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_28) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_29) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_30) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_31) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_32) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_33) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_34) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_35) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_36) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_37) ;
+ end
+ `endif
+
+ initial begin
+ $dumpfile("io_ports_pulldown.vcd");
+ $dumpvars(0, io_ports_pulldown_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (25) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ initial begin
+ // Observe Output pins [7:0]
+ wait(mprj_io_0 == 8'h01);
+ wait(mprj_io_0 == 8'h02);
+ wait(mprj_io_0 == 8'h03);
+ wait(mprj_io_0 == 8'h04);
+ wait(mprj_io_0 == 8'h05);
+ wait(mprj_io_0 == 8'h06);
+ wait(mprj_io_0 == 8'h07);
+ wait(mprj_io_0 == 8'h08);
+ wait(mprj_io_0 == 8'h09);
+ wait(mprj_io_0 == 8'h0A);
+ wait(mprj_io_0 == 8'hFF);
+ wait(mprj_io_0 == 8'h00);
+
+ `ifdef GL
+ $display("Monitor: Test 1 Mega-Project IO (GL) Passed");
+ `else
+ $display("Monitor: Test 1 Mega-Project IO (RTL) Passed");
+ `endif
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #3_00_000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ power3 <= 1'b0;
+ power4 <= 1'b0;
+ #100;
+ power1 <= 1'b1;
+ #100;
+ power2 <= 1'b1;
+ #100;
+ power3 <= 1'b1;
+ #100;
+ power4 <= 1'b1;
+ end
+
+ always @(mprj_io) begin
+ #1 $display("MPRJ-IO state = %b ", mprj_io[7:0]);
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD3V3;
+ wire VDD1V8;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ caravel uut (
+ .vddio (VDD3V3),
+ .vddio_2 (VDD3V3),
+ .vssio (VSS),
+ .vssio_2 (VSS),
+ .vdda (VDD3V3),
+ .vssa (VSS),
+ .vccd (VDD1V8),
+ .vssd (VSS),
+ .vdda1 (VDD3V3),
+ .vdda1_2 (VDD3V3),
+ .vdda2 (VDD3V3),
+ .vssa1 (VSS),
+ .vssa1_2 (VSS),
+ .vssa2 (VSS),
+ .vccd1 (VDD1V8),
+ .vccd2 (VDD1V8),
+ .vssd1 (VSS),
+ .vssd2 (VSS),
+ .clock (clock),
+ .gpio (gpio),
+ .mprj_io (mprj_io),
+ .flash_csb(flash_csb),
+ .flash_clk(flash_clk),
+ .flash_io0(flash_io0),
+ .flash_io1(flash_io1),
+ .resetb (RSTB)
+ );
+
+ spiflash #(
+ .FILENAME("io_ports_pulldown.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/io_ports_pullup/Makefile b/verilog/dv/io_ports_pullup/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/io_ports_pullup/Makefile
@@ -0,0 +1,32 @@
+# SPDX-FileCopyrightText: 2020 Efabless Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+
+
+PWDD := $(shell pwd)
+BLOCKS := $(shell basename $(PWDD))
+
+# ---- Include Partitioned Makefiles ----
+
+CONFIG = caravel_user_project
+
+
+include $(MCW_ROOT)/verilog/dv/make/env.makefile
+include $(MCW_ROOT)/verilog/dv/make/var.makefile
+include $(MCW_ROOT)/verilog/dv/make/cpu.makefile
+include $(MCW_ROOT)/verilog/dv/make/sim.makefile
+
+
diff --git a/verilog/dv/io_ports_pullup/io_ports_pullup.c b/verilog/dv/io_ports_pullup/io_ports_pullup.c
new file mode 100644
index 0000000..99d735e
--- /dev/null
+++ b/verilog/dv/io_ports_pullup/io_ports_pullup.c
@@ -0,0 +1,75 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Efabless Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// This include is relative to $CARAVEL_PATH (see Makefile)
+#include <defs.h>
+#include <stub.c>
+
+/*
+ IO Test:
+ - Configures MPRJ lower 8-IO pins as outputs
+ - Observes counter value through the MPRJ lower 8 IO pins (in the testbench)
+*/
+
+void main()
+{
+ /*
+ IO Control Registers
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit |
+
+ Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_MGMT_STD_INPUT_PULLUP
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
+
+
+ Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
+ | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
+ | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
+
+ */
+
+ /* Set up the housekeeping SPI to be connected internally so */
+ /* that external pin changes don't affect it. */
+
+ // reg_spi_enable = 1;
+ // reg_spimaster_cs = 0x10001;
+ // reg_spimaster_control = 0x0801;
+
+ // reg_spimaster_control = 0xa002; // Enable, prescaler = 2,
+ // connect to housekeeping SPI
+
+ // Connect the housekeeping SPI to the SPI master
+ // so that the CSB line is not left floating. This allows
+ // all of the GPIO pins to be used for user functions.
+
+ // Configure lower 8-IOs as user output
+ // Observe counter value in the testbench
+ reg_mprj_io_0 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+ reg_mprj_io_1 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+ reg_mprj_io_2 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+ reg_mprj_io_3 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+ reg_mprj_io_4 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+ reg_mprj_io_5 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+ reg_mprj_io_6 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+ reg_mprj_io_7 = GPIO_MODE_MGMT_STD_INPUT_PULLUP;
+
+ /* Apply configuration */
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+}
+
diff --git a/verilog/dv/io_ports_pullup/io_ports_pullup_tb.v b/verilog/dv/io_ports_pullup/io_ports_pullup_tb.v
new file mode 100644
index 0000000..1e11e14
--- /dev/null
+++ b/verilog/dv/io_ports_pullup/io_ports_pullup_tb.v
@@ -0,0 +1,266 @@
+// SPDX-FileCopyrightText: 2020 Efabless Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
+
+`default_nettype none
+
+`timescale 1 ns / 1 ps
+
+module io_ports_pullup_tb;
+ reg clock;
+ reg RSTB;
+ reg CSB;
+ reg power1, power2;
+ reg power3, power4;
+
+ wire gpio;
+ wire [37:0] mprj_io;
+ wire [7:0] mprj_io_0;
+
+ assign mprj_io_0 = mprj_io[7:0];
+ // assign mprj_io_0 = {mprj_io[8:4],mprj_io[2:0]};
+
+ assign mprj_io[3] = (CSB == 1'b1) ? 1'b1 : 1'bz;
+ // assign mprj_io[3] = 1'b1;
+
+ // External clock is used by default. Make this artificially fast for the
+ // simulation. Normally this would be a slow clock and the digital PLL
+ // would be the fast clock.
+
+ always #12.5 clock <= (clock === 1'b0);
+
+ initial begin
+ clock = 0;
+ end
+
+
+ `ifdef ENABLE_SDF
+ initial begin
+ $sdf_annotate("../../../sdf/user_proj_example.sdf", uut.mprj) ;
+ $sdf_annotate("../../../sdf/user_project_wrapper.sdf", uut.mprj.mprj) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/DFFRAM.sdf", uut.soc.DFFRAM_0) ;
+ $sdf_annotate("../../../mgmt_core_wrapper/sdf/mgmt_core.sdf", uut.soc.core) ;
+ $sdf_annotate("../../../caravel/sdf/housekeeping.sdf", uut.housekeeping) ;
+ $sdf_annotate("../../../caravel/sdf/chip_io.sdf", uut.padframe) ;
+ $sdf_annotate("../../../caravel/sdf/mprj_logic_high.sdf", uut.mgmt_buffers.mprj_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mprj2_logic_high.sdf", uut.mgmt_buffers.mprj2_logic_high_inst) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect_hv.sdf", uut.mgmt_buffers.powergood_check) ;
+ $sdf_annotate("../../../caravel/sdf/mgmt_protect.sdf", uut.mgmt_buffers) ;
+ $sdf_annotate("../../../caravel/sdf/caravel_clocking.sdf", uut.clocking) ;
+ $sdf_annotate("../../../caravel/sdf/digital_pll.sdf", uut.pll) ;
+ $sdf_annotate("../../../caravel/sdf/xres_buf.sdf", uut.rstb_level) ;
+ $sdf_annotate("../../../caravel/sdf/user_id_programming.sdf", uut.user_id_value) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_bidir_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_1a[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[0] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[1] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[2] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[3] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[4] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[5] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[6] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[7] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[8] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[9] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[10] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[11] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[12] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[13] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[14] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_control_block.sdf", uut.\gpio_control_in_2[15] ) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_0) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_1803.sdf", uut.gpio_defaults_block_1) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_2) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_3) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block_0403.sdf", uut.gpio_defaults_block_4) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_5) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_6) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_7) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_8) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_9) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_10) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_11) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_12) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_13) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_14) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_15) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_16) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_17) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_18) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_19) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_20) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_21) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_22) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_23) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_24) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_25) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_26) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_27) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_28) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_29) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_30) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_31) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_32) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_33) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_34) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_35) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_36) ;
+ $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.gpio_defaults_block_37) ;
+ end
+ `endif
+
+ initial begin
+ $dumpfile("io_ports_pullup.vcd");
+ $dumpvars(0, io_ports_pullup_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (25) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test Mega-Project IO Ports (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ initial begin
+ // Observe Output pins [7:0]
+ wait(mprj_io_0 == 8'h01);
+ wait(mprj_io_0 == 8'h02);
+ wait(mprj_io_0 == 8'h03);
+ wait(mprj_io_0 == 8'h04);
+ wait(mprj_io_0 == 8'h05);
+ wait(mprj_io_0 == 8'h06);
+ wait(mprj_io_0 == 8'h07);
+ wait(mprj_io_0 == 8'h08);
+ wait(mprj_io_0 == 8'h09);
+ wait(mprj_io_0 == 8'h0A);
+ wait(mprj_io_0 == 8'hFF);
+ wait(mprj_io_0 == 8'h00);
+
+ `ifdef GL
+ $display("Monitor: Test 1 Mega-Project IO (GL) Passed");
+ `else
+ $display("Monitor: Test 1 Mega-Project IO (RTL) Passed");
+ `endif
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #3_00_000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ power3 <= 1'b0;
+ power4 <= 1'b0;
+ #100;
+ power1 <= 1'b1;
+ #100;
+ power2 <= 1'b1;
+ #100;
+ power3 <= 1'b1;
+ #100;
+ power4 <= 1'b1;
+ end
+
+ always @(mprj_io) begin
+ #1 $display("MPRJ-IO state = %b ", mprj_io[7:0]);
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD3V3;
+ wire VDD1V8;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ caravel uut (
+ .vddio (VDD3V3),
+ .vddio_2 (VDD3V3),
+ .vssio (VSS),
+ .vssio_2 (VSS),
+ .vdda (VDD3V3),
+ .vssa (VSS),
+ .vccd (VDD1V8),
+ .vssd (VSS),
+ .vdda1 (VDD3V3),
+ .vdda1_2 (VDD3V3),
+ .vdda2 (VDD3V3),
+ .vssa1 (VSS),
+ .vssa1_2 (VSS),
+ .vssa2 (VSS),
+ .vccd1 (VDD1V8),
+ .vccd2 (VDD1V8),
+ .vssd1 (VSS),
+ .vssd2 (VSS),
+ .clock (clock),
+ .gpio (gpio),
+ .mprj_io (mprj_io),
+ .flash_csb(flash_csb),
+ .flash_clk(flash_clk),
+ .flash_io0(flash_io0),
+ .flash_io1(flash_io1),
+ .resetb (RSTB)
+ );
+
+ spiflash #(
+ .FILENAME("io_ports_pullup.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+endmodule
+`default_nettype wire
