Adding base testbenches
diff --git a/verilog/dv/Makefile b/verilog/dv/Makefile
index 43a4149..3b1907b 100644
--- a/verilog/dv/Makefile
+++ b/verilog/dv/Makefile
@@ -20,7 +20,7 @@
.SILENT: clean all
-PATTERNS = io_ports la_test1 la_test2 wb_port mprj_stimulus
+PATTERNS = braille_driver_test0 la_config_test local-install.md memory_test spi_transfer_test
all: ${PATTERNS}
diff --git a/verilog/dv/braille_driver_test0/Makefile b/verilog/dv/braille_driver_test0/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/braille_driver_test0/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/braille_driver_test0/braille_driver_test0.c b/verilog/dv/braille_driver_test0/braille_driver_test0.c
new file mode 100644
index 0000000..cd7c654
--- /dev/null
+++ b/verilog/dv/braille_driver_test0/braille_driver_test0.c
@@ -0,0 +1,230 @@
+/*
+ * 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>
+
+// --------------------------------------------------------
+
+/*
+ MPRJ Logic Analyzer Test:
+ - Observes counter value through LA probes [31:0]
+ - Sets counter initial value through LA probes [63:32]
+ - Flags when counter value exceeds 500 through the management SoC gpio
+ - Outputs message to the UART when the test concludes successfuly
+*/
+
+// LA 0
+#define MASK_DATA_0 0x00000001
+#define MASK_DATA_1 0x00000002
+#define MASK_DATA_2 0x00000004
+#define MASK_DATA_3 0x00000008
+#define MASK_DATA_4 0x00000010
+#define MASK_DATA_5 0x00000020
+#define MASK_DATA_6 0x00000040
+#define MASK_DATA_7 0x00000080
+#define MASK_DATA_8 0x00000100
+#define MASK_DATA_9 0x00000200
+#define MASK_DATA_10 0x00000400
+#define MASK_DATA_11 0x00000800
+#define MASK_DATA_12 0x00001000
+#define MASK_DATA_13 0x00002000
+#define MASK_DATA_14 0x00004000
+#define MASK_DATA_15 0x00008000
+#define MASK_DATA_16 0x00010000
+#define MASK_DATA_17 0x00020000
+#define MASK_DATA_18 0x00040000
+#define MASK_DATA_19 0x00080000
+#define MASK_DATA_20 0x00100000
+#define MASK_DATA_21 0x00200000
+#define MASK_DATA_22 0x00400000
+#define MASK_DATA_23 0x00800000
+#define MASK_DATA_24 0x01000000
+#define MASK_DATA_25 0x02000000
+#define MASK_DATA_26 0x04000000
+#define MASK_DATA_27 0x08000000
+#define MASK_DATA_28 0x10000000
+#define MASK_DATA_29 0x20000000
+#define MASK_DATA_30 0x40000000
+#define MASK_DATA_31 0x80000000
+
+// LA 1
+#define MASK_DATA_32 0x00000001
+#define MASK_DATA_33 0x00000002
+#define MASK_DATA_34 0x00000004
+#define MASK_DATA_35 0x00000008
+#define MASK_DATA_36 0x00000010
+#define MASK_DATA_37 0x00000020
+#define MASK_ENABLE_0 0x00000040
+#define MASK_ENABLE_1 0x00000080
+#define MASK_ENABLE_2 0x00000100
+#define MASK_ENABLE_3 0x00000200
+#define MASK_ENABLE_4 0x00000400
+#define MASK_ENABLE_5 0x00000800
+#define MASK_ENABLE_6 0x00001000
+#define MASK_ENABLE_7 0x00002000
+#define MASK_ENABLE_8 0x00004000
+#define MASK_ENABLE_9 0x00008000
+#define MASK_ENABLE_10 0x00010000
+#define MASK_ENABLE_11 0x00020000
+#define MASK_ENABLE_12 0x00040000
+#define MASK_ENABLE_13 0x00080000
+#define MASK_ENABLE_14 0x00100000
+#define MASK_ENABLE_15 0x00200000
+#define MASK_ENABLE_16 0x00400000
+#define MASK_ENABLE_17 0x00800000
+#define MASK_ENABLE_18 0x01000000
+#define MASK_ENABLE_19 0x02000000
+#define MASK_ENABLE_20 0x04000000
+#define MASK_ENABLE_21 0x08000000
+#define MASK_ENABLE_22 0x10000000
+#define MASK_ENABLE_23 0x20000000
+#define MASK_ENABLE_24 0x40000000
+#define MASK_ENABLE_25 0x80000000
+
+// LA 2
+#define MASK_ENABLE_26 0x00000001
+#define MASK_ENABLE_27 0x00000002
+#define MASK_ENABLE_28 0x00000004
+#define MASK_ENABLE_29 0x00000008
+#define MASK_ENABLE_30 0x00000010
+#define MASK_ENABLE_31 0x00000020
+#define MASK_ENABLE_32 0x00000040
+#define MASK_ENABLE_33 0x00000080
+#define MASK_ENABLE_34 0x00000100
+#define MASK_ENABLE_35 0x00000200
+#define MASK_ENABLE_36 0x00000400
+#define MASK_ENABLE_37 0x00000800
+void main()
+{
+ int j;
+
+ /* 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 = 0x00000;
+
+ // 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.
+
+ // The upper GPIO pins are configured to be output
+ // and accessble to the management SoC.
+ // Used to flad the start/end of a test
+ // The lower GPIO pins are configured to be output
+ // and accessible to the user project. They show
+ // the project count value, although this test is
+ // designed to read the project count through the
+ // logic analyzer probes.
+ // I/O 6 is configured for the UART Tx line
+
+ reg_mprj_io_37 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 37 : input
+ reg_mprj_io_36 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 36 : input
+ reg_mprj_io_35 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 35 : input
+ reg_mprj_io_34 = GPIO_MODE_USER_STD_OUTPUT; // 34 : output
+ reg_mprj_io_33 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 33 : input
+ reg_mprj_io_32 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 32 : input
+ reg_mprj_io_31 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 31 : input
+ reg_mprj_io_30 = GPIO_MODE_USER_STD_OUTPUT; // 30 : output
+ reg_mprj_io_29 = GPIO_MODE_USER_STD_OUTPUT; // 29 : output
+ reg_mprj_io_28 = GPIO_MODE_USER_STD_OUTPUT; // 28 : output
+ reg_mprj_io_27 = GPIO_MODE_USER_STD_OUTPUT; // 27 : output
+ reg_mprj_io_26 = GPIO_MODE_USER_STD_OUTPUT; // 26 : output
+ reg_mprj_io_25 = GPIO_MODE_USER_STD_OUTPUT; // 25 : output
+ reg_mprj_io_24 = GPIO_MODE_USER_STD_OUTPUT; // 24 : output
+ reg_mprj_io_23 = GPIO_MODE_USER_STD_OUTPUT; // 23 : output
+ reg_mprj_io_22 = GPIO_MODE_USER_STD_OUTPUT; // 22 : output
+ reg_mprj_io_21 = GPIO_MODE_USER_STD_OUTPUT; // 21 : output
+ reg_mprj_io_20 = GPIO_MODE_USER_STD_OUTPUT; // 20 : output
+ reg_mprj_io_19 = GPIO_MODE_USER_STD_OUTPUT; // 19 : output
+ reg_mprj_io_18 = GPIO_MODE_USER_STD_OUTPUT; // 18 : output
+ reg_mprj_io_17 = GPIO_MODE_USER_STD_OUTPUT; // 17 : output
+ reg_mprj_io_16 = GPIO_MODE_USER_STD_OUTPUT; // 16 : output
+ reg_mprj_io_15 = GPIO_MODE_USER_STD_OUTPUT; // 15 : output
+ reg_mprj_io_14 = GPIO_MODE_USER_STD_OUTPUT; // 14 : output
+ reg_mprj_io_13 = GPIO_MODE_USER_STD_OUTPUT; // 13 : output
+ reg_mprj_io_12 = GPIO_MODE_USER_STD_OUTPUT; // 12 : output
+ reg_mprj_io_11 = GPIO_MODE_USER_STD_OUTPUT; // 11 : output
+ reg_mprj_io_10 = GPIO_MODE_USER_STD_OUTPUT; // 10 : output
+ reg_mprj_io_9 = GPIO_MODE_USER_STD_OUTPUT; // 9 : output
+ reg_mprj_io_8 = GPIO_MODE_USER_STD_OUTPUT; // 8 : output
+ reg_mprj_io_7 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 7 : input
+ reg_mprj_io_5 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 5 : input
+ reg_mprj_io_4 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 4 : input
+ reg_mprj_io_3 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 3 : input
+ reg_mprj_io_2 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 2 : input
+ reg_mprj_io_1 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 1 : input
+ reg_mprj_io_0 = GPIO_MODE_USER_STD_OUTPUT; // 0 : output
+
+
+ // Set UART clock to 64 kbaud (enable before I/O configuration)
+ // reg_uart_clkdiv = 625;
+ reg_uart_enable = 1;
+
+ // Now, apply the configuration
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+
+ // Configure LA probes [31:0], [127:64] as inputs to the cpu
+ // Configure LA probes [63:32] as outputs from the cpu
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = MASK_DATA_37; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = MASK_ENABLE_37; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x80000000; // [127:96]
+
+ reg_la0_oenb = reg_la0_iena = MASK_DATA_0; // [31:0]
+ reg_la1_oenb = reg_la1_iena = MASK_ENABLE_0; // [63:32]
+ reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+
+ reg_la0_data = MASK_DATA_0;
+ reg_la1_data = 0x00000000;
+ reg_la2_data = 0x00000000;
+ reg_la3_data = 0x00000000;
+
+
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = 0x00000000; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+ // Flag start of the test
+
+
+ // Configure LA probes from [63:32] as inputs to disable counter write
+ //reg_la1_oenb = reg_la1_iena = 0x00000000;
+
+ while (1) {
+ if (reg_la0_data_in & MASK_DATA_1) {
+ break;
+ }
+ }
+ //print("\n");
+ //print("BEEP\n");
+ reg_la0_data = 0x00000000;
+ //print("\n");
+ //print("Monitor: Test 1 Passed\n\n"); // Makes simulation very long!
+}
+
diff --git a/verilog/dv/braille_driver_test0/braille_driver_test0_tb.v b/verilog/dv/braille_driver_test0/braille_driver_test0_tb.v
new file mode 100644
index 0000000..09af9f6
--- /dev/null
+++ b/verilog/dv/braille_driver_test0/braille_driver_test0_tb.v
@@ -0,0 +1,446 @@
+// 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 braille_driver_test0_tb;
+ reg clock;
+ reg spi_clock;
+ reg RSTB;
+ reg CSB;
+
+ reg power1, power2;
+
+ wire gpio;
+ wire uart_tx;
+ wire [37:0] mprj_io;
+
+ wire core_to_tb;
+ reg tb_to_core;
+
+ reg enable_n;
+ reg trigger_in_n;
+ reg latch_data_n;
+ wire sclk;
+ reg mosi;
+ reg ss_n;
+ wire miso;
+ reg [31:0] tmp_data;
+
+ assign mprj_io[37] = enable_n;
+ assign mprj_io[36] = trigger_in_n;
+ assign mprj_io[35] = latch_data_n;
+ assign miso = mprj_io[34];
+ assign mprj_io[33] = mosi;
+ assign mprj_io[32] = ss_n;
+ assign mprj_io[31] = sclk;
+
+ assign mprj_io[7] = 1'b0;
+ assign uart_tx = mprj_io[6];
+ assign mprj_io[5] = 1'b0;
+ assign mprj_io[4] = 1'b0;
+ assign mprj_io[3] = 1'b1;
+ assign mprj_io[2] = 1'b0;
+ assign mprj_io[1] = tb_to_core;
+ assign core_to_tb = mprj_io[0];
+
+
+ always #12.5 clock <= (clock === 1'b0);
+ always #100 spi_clock <= ~spi_clock;
+
+
+ assign sclk = ~ss_n & spi_clock;
+
+ initial begin
+ clock = 0;
+ spi_clock = 1;
+ end
+
+ // Set the init state of input pins to asic
+ task init_signals;
+ begin
+ tb_to_core = 1'b0;
+ enable_n = 0;
+ trigger_in_n = 0;
+ latch_data_n = 0;
+ mosi = 0;
+ ss_n = 1;
+ wait_n_clks(50);
+ end
+ endtask
+ // set the enable signal to chip
+ task enable_chip;
+ begin
+ enable_n = 0;
+ end
+ endtask
+
+ // unset the enable signal to chip
+ task disable_chip;
+ begin
+ enable_n = 1;
+ end
+ endtask
+
+ // pass time
+ task wait_n_clks;
+ input integer i;
+ integer j;
+ begin
+ for(j=0;j<i;j=j+1)
+ @(posedge clock);
+ end
+ endtask
+
+ initial begin
+ $dumpfile("araille_driver_test0.vcd");
+ $dumpvars(0, braille_driver_test0_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (400) begin
+ repeat (1000) @(posedge clock);
+ //$display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test LA (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test LA (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ // transfer data on spi bus
+ task spi_shift;
+ input [31:0] data_in;
+ output [31:0] data_out;
+ integer j;
+ begin
+ for(j=0;j<32;j=j+1)
+ begin
+ @(negedge spi_clock);
+ ss_n = 1'b0;
+ mosi = data_in[31];
+ data_in = data_in << 1;
+ @(posedge spi_clock)
+ data_out = {data_out[31:0],miso};
+ end
+ @(negedge spi_clock);
+ ss_n = 1'b1;
+ @(posedge clock);
+ @(posedge clock);
+ end
+ endtask
+
+ task write_data;
+ input [7:0] address;
+ input [15:0] data;
+ reg [31:0] pass;
+ begin
+ @(posedge clock);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ spi_shift({8'h02,address,data},pass);
+ wait_n_clks(10);
+ latch_data_n = 0;
+ wait_n_clks(100);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ end
+ endtask
+
+ task read_data;
+ input [7:0] address;
+ output [15:0] data_out;
+ reg [31:0] pass;
+ begin
+ @(posedge clock);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ spi_shift({8'h01,address,16'b0},pass);
+ wait_n_clks(100);
+ latch_data_n = 0;
+ wait_n_clks(20);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ spi_shift(32'b0,data_out);
+ wait_n_clks(20);
+ end
+ endtask
+
+
+ task memory_test;
+ input [7:0] address;
+ input [15:0] data;
+ reg [15:0] tmp;
+ begin
+ tmp = data;
+ write_data(address,tmp);
+ wait_n_clks(100);
+ read_data(address,tmp);
+ if(data === tmp)
+ begin
+ $display("SPI MEMORY TEST passed");
+ $display("address:%h\tdata:%h",address,tmp);
+ end
+ else
+ begin
+ $display("SPI MEMORY Test Failed");
+ $display("address:%h\tdata:%h",address,tmp);
+ end
+
+ end
+ endtask
+
+ task write_ccr0;
+ input [31:0] data;
+ integer j;
+ begin
+ wait_n_clks(20);
+ write_data(8'h02,data[15:0]);
+ wait_n_clks(20);
+ write_data(8'h03,data[31:16]);
+ wait_n_clks(20);
+ end
+ endtask
+
+ task write_ccr1;
+ input [31:0] data;
+ integer j;
+ begin
+ wait_n_clks(20);
+ write_data(8'h04,data[15:0]);
+ wait_n_clks(20);
+ write_data(8'h05,data[31:16]);
+ wait_n_clks(20);
+ end
+ endtask
+
+ task write_ccr2;
+ input [31:0] data;
+ integer j;
+ begin
+ wait_n_clks(20);
+ write_data(8'h06,data[15:0]);
+ wait_n_clks(20);
+ write_data(8'h07,data[31:16]);
+ wait_n_clks(20);
+ end
+ endtask
+
+ task write_ccr3;
+ input [31:0] data;
+ integer j;
+ begin
+ wait_n_clks(20);
+ write_data(8'h08,data[15:0]);
+ wait_n_clks(20);
+ write_data(8'h09,data[31:16]);
+ wait_n_clks(20);
+ end
+ endtask
+
+ task ccr_set;
+ begin
+ $display("Writing CCR0");
+ write_ccr0(32'h00_00_00_08);
+ $display("Writing CCR1");
+ write_ccr1(32'h00_00_00_0f);
+ $display("Writing CCR2");
+ write_ccr2(32'h00_00_00_80);
+ $display("Writing CCR3");
+ write_ccr3(32'h00_00_00_f0);
+ end
+ endtask
+
+ task check_ccr_set;
+ reg [15:0] tmp;
+ reg [7:0] address;
+ begin
+ address = 8'h02;
+ read_data(address,tmp);
+ if(16'h00_08 === tmp)
+ begin
+ $display("CCR0 Low bit set PASSED");
+ $display("address:%h\tccr0_low:%h",address,tmp);
+ end
+ else
+ begin
+ $display("CCR0 Low bit set FAILED");
+ $display("address:%h\tccr0_low:%h",address,tmp);
+ end
+ address = 8'h03;
+ read_data(address,tmp);
+ if(16'h00_00 === tmp)
+ begin
+ $display("CCR0 High bit set PASSED");
+ $display("address:%h\tccr0_high:%h",address,tmp);
+ end
+ else
+ begin
+ $display("CCR0 High bit set FAILED");
+ $display("address:%h\tccr0_high:%h",address,tmp);
+ end
+ address = 8'h04;
+ read_data(address,tmp);
+ if(16'h00_0f === tmp)
+ begin
+ $display("CCR1 Low bit set PASSED");
+ $display("address:%h\tccr0_low:%h",address,tmp);
+ end
+ else
+ begin
+ $display("CCR1 Low bit set FAILED");
+ $display("address:%h\tccr0_low:%h",address,tmp);
+ end
+ address = 8'h05;
+ read_data(address,tmp);
+ if(16'h00_00 === tmp)
+ begin
+ $display("CCR1 High bit set PASSED");
+ $display("address:%h\tccr0_high:%h",address,tmp);
+ end
+ else
+ begin
+ $display("CCR1 High bit set FAILED");
+ $display("address:%h\tccr0_high:%h",address,tmp);
+ end
+ address = 8'h06;
+ read_data(address,tmp);
+ if(16'h00_80 === tmp)
+ begin
+ $display("CCR2 Low bit set PASSED");
+ $display("address:%h\tccr0_low:%h",address,tmp);
+ end
+ else
+ begin
+ $display("CCR2 Low bit set FAILED");
+ $display("address:%h\tccr0_low:%h",address,tmp);
+ end
+ address = 8'h07;
+ read_data(address,tmp);
+ if(16'h00_00 === tmp)
+ begin
+ $display("CCR2 High bit set PASSED");
+ $display("address:%h\tccr0_high:%h",address,tmp);
+ end
+ else
+ begin
+ $display("CCR2 High bit set FAILED");
+ $display("address:%h\tccr0_high:%h",address,tmp);
+ end
+
+ end
+ endtask
+
+ initial begin
+ init_signals();
+ wait(core_to_tb === 1'b1);
+ $display("LA Test 1 started");
+ enable_chip();
+ wait_n_clks(50);
+ ccr_set();
+ check_ccr_set();
+ tb_to_core = 1'b1;
+ wait(core_to_tb === 1'b0);
+ tb_to_core = 1'b0;
+ #10000;
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #170000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ #200;
+ power1 <= 1'b1;
+ #200;
+ power2 <= 1'b1;
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD1V8;
+ wire VDD3V3;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ //assign mprj_io[3] = 1; // Force CSB high.
+ //assign mprj_io[0] = 0; // Disable debug mode
+
+ 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("braille_driver_test0.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+ // Testbench UART
+ tbuart tbuart (
+ .ser_rx(uart_tx)
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/la_config_test/Makefile b/verilog/dv/la_config_test/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/la_config_test/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/la_config_test/la_config_test.c b/verilog/dv/la_config_test/la_config_test.c
new file mode 100644
index 0000000..cd7c654
--- /dev/null
+++ b/verilog/dv/la_config_test/la_config_test.c
@@ -0,0 +1,230 @@
+/*
+ * 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>
+
+// --------------------------------------------------------
+
+/*
+ MPRJ Logic Analyzer Test:
+ - Observes counter value through LA probes [31:0]
+ - Sets counter initial value through LA probes [63:32]
+ - Flags when counter value exceeds 500 through the management SoC gpio
+ - Outputs message to the UART when the test concludes successfuly
+*/
+
+// LA 0
+#define MASK_DATA_0 0x00000001
+#define MASK_DATA_1 0x00000002
+#define MASK_DATA_2 0x00000004
+#define MASK_DATA_3 0x00000008
+#define MASK_DATA_4 0x00000010
+#define MASK_DATA_5 0x00000020
+#define MASK_DATA_6 0x00000040
+#define MASK_DATA_7 0x00000080
+#define MASK_DATA_8 0x00000100
+#define MASK_DATA_9 0x00000200
+#define MASK_DATA_10 0x00000400
+#define MASK_DATA_11 0x00000800
+#define MASK_DATA_12 0x00001000
+#define MASK_DATA_13 0x00002000
+#define MASK_DATA_14 0x00004000
+#define MASK_DATA_15 0x00008000
+#define MASK_DATA_16 0x00010000
+#define MASK_DATA_17 0x00020000
+#define MASK_DATA_18 0x00040000
+#define MASK_DATA_19 0x00080000
+#define MASK_DATA_20 0x00100000
+#define MASK_DATA_21 0x00200000
+#define MASK_DATA_22 0x00400000
+#define MASK_DATA_23 0x00800000
+#define MASK_DATA_24 0x01000000
+#define MASK_DATA_25 0x02000000
+#define MASK_DATA_26 0x04000000
+#define MASK_DATA_27 0x08000000
+#define MASK_DATA_28 0x10000000
+#define MASK_DATA_29 0x20000000
+#define MASK_DATA_30 0x40000000
+#define MASK_DATA_31 0x80000000
+
+// LA 1
+#define MASK_DATA_32 0x00000001
+#define MASK_DATA_33 0x00000002
+#define MASK_DATA_34 0x00000004
+#define MASK_DATA_35 0x00000008
+#define MASK_DATA_36 0x00000010
+#define MASK_DATA_37 0x00000020
+#define MASK_ENABLE_0 0x00000040
+#define MASK_ENABLE_1 0x00000080
+#define MASK_ENABLE_2 0x00000100
+#define MASK_ENABLE_3 0x00000200
+#define MASK_ENABLE_4 0x00000400
+#define MASK_ENABLE_5 0x00000800
+#define MASK_ENABLE_6 0x00001000
+#define MASK_ENABLE_7 0x00002000
+#define MASK_ENABLE_8 0x00004000
+#define MASK_ENABLE_9 0x00008000
+#define MASK_ENABLE_10 0x00010000
+#define MASK_ENABLE_11 0x00020000
+#define MASK_ENABLE_12 0x00040000
+#define MASK_ENABLE_13 0x00080000
+#define MASK_ENABLE_14 0x00100000
+#define MASK_ENABLE_15 0x00200000
+#define MASK_ENABLE_16 0x00400000
+#define MASK_ENABLE_17 0x00800000
+#define MASK_ENABLE_18 0x01000000
+#define MASK_ENABLE_19 0x02000000
+#define MASK_ENABLE_20 0x04000000
+#define MASK_ENABLE_21 0x08000000
+#define MASK_ENABLE_22 0x10000000
+#define MASK_ENABLE_23 0x20000000
+#define MASK_ENABLE_24 0x40000000
+#define MASK_ENABLE_25 0x80000000
+
+// LA 2
+#define MASK_ENABLE_26 0x00000001
+#define MASK_ENABLE_27 0x00000002
+#define MASK_ENABLE_28 0x00000004
+#define MASK_ENABLE_29 0x00000008
+#define MASK_ENABLE_30 0x00000010
+#define MASK_ENABLE_31 0x00000020
+#define MASK_ENABLE_32 0x00000040
+#define MASK_ENABLE_33 0x00000080
+#define MASK_ENABLE_34 0x00000100
+#define MASK_ENABLE_35 0x00000200
+#define MASK_ENABLE_36 0x00000400
+#define MASK_ENABLE_37 0x00000800
+void main()
+{
+ int j;
+
+ /* 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 = 0x00000;
+
+ // 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.
+
+ // The upper GPIO pins are configured to be output
+ // and accessble to the management SoC.
+ // Used to flad the start/end of a test
+ // The lower GPIO pins are configured to be output
+ // and accessible to the user project. They show
+ // the project count value, although this test is
+ // designed to read the project count through the
+ // logic analyzer probes.
+ // I/O 6 is configured for the UART Tx line
+
+ reg_mprj_io_37 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 37 : input
+ reg_mprj_io_36 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 36 : input
+ reg_mprj_io_35 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 35 : input
+ reg_mprj_io_34 = GPIO_MODE_USER_STD_OUTPUT; // 34 : output
+ reg_mprj_io_33 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 33 : input
+ reg_mprj_io_32 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 32 : input
+ reg_mprj_io_31 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 31 : input
+ reg_mprj_io_30 = GPIO_MODE_USER_STD_OUTPUT; // 30 : output
+ reg_mprj_io_29 = GPIO_MODE_USER_STD_OUTPUT; // 29 : output
+ reg_mprj_io_28 = GPIO_MODE_USER_STD_OUTPUT; // 28 : output
+ reg_mprj_io_27 = GPIO_MODE_USER_STD_OUTPUT; // 27 : output
+ reg_mprj_io_26 = GPIO_MODE_USER_STD_OUTPUT; // 26 : output
+ reg_mprj_io_25 = GPIO_MODE_USER_STD_OUTPUT; // 25 : output
+ reg_mprj_io_24 = GPIO_MODE_USER_STD_OUTPUT; // 24 : output
+ reg_mprj_io_23 = GPIO_MODE_USER_STD_OUTPUT; // 23 : output
+ reg_mprj_io_22 = GPIO_MODE_USER_STD_OUTPUT; // 22 : output
+ reg_mprj_io_21 = GPIO_MODE_USER_STD_OUTPUT; // 21 : output
+ reg_mprj_io_20 = GPIO_MODE_USER_STD_OUTPUT; // 20 : output
+ reg_mprj_io_19 = GPIO_MODE_USER_STD_OUTPUT; // 19 : output
+ reg_mprj_io_18 = GPIO_MODE_USER_STD_OUTPUT; // 18 : output
+ reg_mprj_io_17 = GPIO_MODE_USER_STD_OUTPUT; // 17 : output
+ reg_mprj_io_16 = GPIO_MODE_USER_STD_OUTPUT; // 16 : output
+ reg_mprj_io_15 = GPIO_MODE_USER_STD_OUTPUT; // 15 : output
+ reg_mprj_io_14 = GPIO_MODE_USER_STD_OUTPUT; // 14 : output
+ reg_mprj_io_13 = GPIO_MODE_USER_STD_OUTPUT; // 13 : output
+ reg_mprj_io_12 = GPIO_MODE_USER_STD_OUTPUT; // 12 : output
+ reg_mprj_io_11 = GPIO_MODE_USER_STD_OUTPUT; // 11 : output
+ reg_mprj_io_10 = GPIO_MODE_USER_STD_OUTPUT; // 10 : output
+ reg_mprj_io_9 = GPIO_MODE_USER_STD_OUTPUT; // 9 : output
+ reg_mprj_io_8 = GPIO_MODE_USER_STD_OUTPUT; // 8 : output
+ reg_mprj_io_7 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 7 : input
+ reg_mprj_io_5 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 5 : input
+ reg_mprj_io_4 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 4 : input
+ reg_mprj_io_3 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 3 : input
+ reg_mprj_io_2 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 2 : input
+ reg_mprj_io_1 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 1 : input
+ reg_mprj_io_0 = GPIO_MODE_USER_STD_OUTPUT; // 0 : output
+
+
+ // Set UART clock to 64 kbaud (enable before I/O configuration)
+ // reg_uart_clkdiv = 625;
+ reg_uart_enable = 1;
+
+ // Now, apply the configuration
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+
+ // Configure LA probes [31:0], [127:64] as inputs to the cpu
+ // Configure LA probes [63:32] as outputs from the cpu
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = MASK_DATA_37; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = MASK_ENABLE_37; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x80000000; // [127:96]
+
+ reg_la0_oenb = reg_la0_iena = MASK_DATA_0; // [31:0]
+ reg_la1_oenb = reg_la1_iena = MASK_ENABLE_0; // [63:32]
+ reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+
+ reg_la0_data = MASK_DATA_0;
+ reg_la1_data = 0x00000000;
+ reg_la2_data = 0x00000000;
+ reg_la3_data = 0x00000000;
+
+
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = 0x00000000; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+ // Flag start of the test
+
+
+ // Configure LA probes from [63:32] as inputs to disable counter write
+ //reg_la1_oenb = reg_la1_iena = 0x00000000;
+
+ while (1) {
+ if (reg_la0_data_in & MASK_DATA_1) {
+ break;
+ }
+ }
+ //print("\n");
+ //print("BEEP\n");
+ reg_la0_data = 0x00000000;
+ //print("\n");
+ //print("Monitor: Test 1 Passed\n\n"); // Makes simulation very long!
+}
+
diff --git a/verilog/dv/la_config_test/la_config_test_tb.v b/verilog/dv/la_config_test/la_config_test_tb.v
new file mode 100644
index 0000000..d6fa0d5
--- /dev/null
+++ b/verilog/dv/la_config_test/la_config_test_tb.v
@@ -0,0 +1,186 @@
+// 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 la_config_test_tb;
+ reg clock;
+ reg RSTB;
+ reg CSB;
+
+ reg power1, power2;
+
+ wire gpio;
+ wire uart_tx;
+ wire [37:0] mprj_io;
+
+ wire core_to_tb;
+ reg tb_to_core;
+
+ reg enable_n;
+ reg trigger_in_n;
+ reg latch_data_n;
+ reg sclk;
+ reg mosi;
+ reg ss_n;
+ wire miso;
+
+ assign mprj_io[37] = enable_n;
+ assign mprj_io[36] = trigger_in_n;
+ assign mprj_io[35] = latch_data_n;
+ assign miso = mprj_io[34];
+ assign mprj_io[33] = mosi;
+ assign mprj_io[32] = ss_n;
+ assign mprj_io[31] = sclk;
+
+ assign mprj_io[7] = 1'b0;
+ assign uart_tx = mprj_io[6];
+ assign mprj_io[5] = 1'b0;
+ assign mprj_io[4] = 1'b0;
+ assign mprj_io[3] = 1'b1;
+ assign mprj_io[2] = 1'b0;
+ assign mprj_io[1] = tb_to_core;
+ assign core_to_tb = mprj_io[0];
+
+
+ always #12.5 clock <= (clock === 1'b0);
+
+ initial begin
+ clock = 0;
+ end
+
+ //assign mprj_io[3] = 1'b1;
+ //
+
+ initial begin
+ $dumpfile("la_config_test.vcd");
+ $dumpvars(0, la_config_test_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (100) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test LA (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test LA (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ initial begin
+ tb_to_core = 1'b0;
+ enable_n = 0;
+ trigger_in_n = 0;
+ latch_data_n = 0;
+ sclk = 0;
+ mosi = 0;
+ ss_n = 0;
+ wait(core_to_tb === 1'b1);
+ $display("LA Test 1 started");
+ tb_to_core = 1'b1;
+ wait(core_to_tb === 1'b0);
+ tb_to_core = 1'b0;
+ $display("LA Test 1 passed");
+ #10000;
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #170000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ #200;
+ power1 <= 1'b1;
+ #200;
+ power2 <= 1'b1;
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD1V8;
+ wire VDD3V3;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ //assign mprj_io[3] = 1; // Force CSB high.
+ //assign mprj_io[0] = 0; // Disable debug mode
+
+ 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("la_config_test.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+ // Testbench UART
+ tbuart tbuart (
+ .ser_rx(uart_tx)
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/memory_test/Makefile b/verilog/dv/memory_test/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/memory_test/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/memory_test/memory_test.c b/verilog/dv/memory_test/memory_test.c
new file mode 100644
index 0000000..cd7c654
--- /dev/null
+++ b/verilog/dv/memory_test/memory_test.c
@@ -0,0 +1,230 @@
+/*
+ * 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>
+
+// --------------------------------------------------------
+
+/*
+ MPRJ Logic Analyzer Test:
+ - Observes counter value through LA probes [31:0]
+ - Sets counter initial value through LA probes [63:32]
+ - Flags when counter value exceeds 500 through the management SoC gpio
+ - Outputs message to the UART when the test concludes successfuly
+*/
+
+// LA 0
+#define MASK_DATA_0 0x00000001
+#define MASK_DATA_1 0x00000002
+#define MASK_DATA_2 0x00000004
+#define MASK_DATA_3 0x00000008
+#define MASK_DATA_4 0x00000010
+#define MASK_DATA_5 0x00000020
+#define MASK_DATA_6 0x00000040
+#define MASK_DATA_7 0x00000080
+#define MASK_DATA_8 0x00000100
+#define MASK_DATA_9 0x00000200
+#define MASK_DATA_10 0x00000400
+#define MASK_DATA_11 0x00000800
+#define MASK_DATA_12 0x00001000
+#define MASK_DATA_13 0x00002000
+#define MASK_DATA_14 0x00004000
+#define MASK_DATA_15 0x00008000
+#define MASK_DATA_16 0x00010000
+#define MASK_DATA_17 0x00020000
+#define MASK_DATA_18 0x00040000
+#define MASK_DATA_19 0x00080000
+#define MASK_DATA_20 0x00100000
+#define MASK_DATA_21 0x00200000
+#define MASK_DATA_22 0x00400000
+#define MASK_DATA_23 0x00800000
+#define MASK_DATA_24 0x01000000
+#define MASK_DATA_25 0x02000000
+#define MASK_DATA_26 0x04000000
+#define MASK_DATA_27 0x08000000
+#define MASK_DATA_28 0x10000000
+#define MASK_DATA_29 0x20000000
+#define MASK_DATA_30 0x40000000
+#define MASK_DATA_31 0x80000000
+
+// LA 1
+#define MASK_DATA_32 0x00000001
+#define MASK_DATA_33 0x00000002
+#define MASK_DATA_34 0x00000004
+#define MASK_DATA_35 0x00000008
+#define MASK_DATA_36 0x00000010
+#define MASK_DATA_37 0x00000020
+#define MASK_ENABLE_0 0x00000040
+#define MASK_ENABLE_1 0x00000080
+#define MASK_ENABLE_2 0x00000100
+#define MASK_ENABLE_3 0x00000200
+#define MASK_ENABLE_4 0x00000400
+#define MASK_ENABLE_5 0x00000800
+#define MASK_ENABLE_6 0x00001000
+#define MASK_ENABLE_7 0x00002000
+#define MASK_ENABLE_8 0x00004000
+#define MASK_ENABLE_9 0x00008000
+#define MASK_ENABLE_10 0x00010000
+#define MASK_ENABLE_11 0x00020000
+#define MASK_ENABLE_12 0x00040000
+#define MASK_ENABLE_13 0x00080000
+#define MASK_ENABLE_14 0x00100000
+#define MASK_ENABLE_15 0x00200000
+#define MASK_ENABLE_16 0x00400000
+#define MASK_ENABLE_17 0x00800000
+#define MASK_ENABLE_18 0x01000000
+#define MASK_ENABLE_19 0x02000000
+#define MASK_ENABLE_20 0x04000000
+#define MASK_ENABLE_21 0x08000000
+#define MASK_ENABLE_22 0x10000000
+#define MASK_ENABLE_23 0x20000000
+#define MASK_ENABLE_24 0x40000000
+#define MASK_ENABLE_25 0x80000000
+
+// LA 2
+#define MASK_ENABLE_26 0x00000001
+#define MASK_ENABLE_27 0x00000002
+#define MASK_ENABLE_28 0x00000004
+#define MASK_ENABLE_29 0x00000008
+#define MASK_ENABLE_30 0x00000010
+#define MASK_ENABLE_31 0x00000020
+#define MASK_ENABLE_32 0x00000040
+#define MASK_ENABLE_33 0x00000080
+#define MASK_ENABLE_34 0x00000100
+#define MASK_ENABLE_35 0x00000200
+#define MASK_ENABLE_36 0x00000400
+#define MASK_ENABLE_37 0x00000800
+void main()
+{
+ int j;
+
+ /* 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 = 0x00000;
+
+ // 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.
+
+ // The upper GPIO pins are configured to be output
+ // and accessble to the management SoC.
+ // Used to flad the start/end of a test
+ // The lower GPIO pins are configured to be output
+ // and accessible to the user project. They show
+ // the project count value, although this test is
+ // designed to read the project count through the
+ // logic analyzer probes.
+ // I/O 6 is configured for the UART Tx line
+
+ reg_mprj_io_37 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 37 : input
+ reg_mprj_io_36 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 36 : input
+ reg_mprj_io_35 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 35 : input
+ reg_mprj_io_34 = GPIO_MODE_USER_STD_OUTPUT; // 34 : output
+ reg_mprj_io_33 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 33 : input
+ reg_mprj_io_32 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 32 : input
+ reg_mprj_io_31 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 31 : input
+ reg_mprj_io_30 = GPIO_MODE_USER_STD_OUTPUT; // 30 : output
+ reg_mprj_io_29 = GPIO_MODE_USER_STD_OUTPUT; // 29 : output
+ reg_mprj_io_28 = GPIO_MODE_USER_STD_OUTPUT; // 28 : output
+ reg_mprj_io_27 = GPIO_MODE_USER_STD_OUTPUT; // 27 : output
+ reg_mprj_io_26 = GPIO_MODE_USER_STD_OUTPUT; // 26 : output
+ reg_mprj_io_25 = GPIO_MODE_USER_STD_OUTPUT; // 25 : output
+ reg_mprj_io_24 = GPIO_MODE_USER_STD_OUTPUT; // 24 : output
+ reg_mprj_io_23 = GPIO_MODE_USER_STD_OUTPUT; // 23 : output
+ reg_mprj_io_22 = GPIO_MODE_USER_STD_OUTPUT; // 22 : output
+ reg_mprj_io_21 = GPIO_MODE_USER_STD_OUTPUT; // 21 : output
+ reg_mprj_io_20 = GPIO_MODE_USER_STD_OUTPUT; // 20 : output
+ reg_mprj_io_19 = GPIO_MODE_USER_STD_OUTPUT; // 19 : output
+ reg_mprj_io_18 = GPIO_MODE_USER_STD_OUTPUT; // 18 : output
+ reg_mprj_io_17 = GPIO_MODE_USER_STD_OUTPUT; // 17 : output
+ reg_mprj_io_16 = GPIO_MODE_USER_STD_OUTPUT; // 16 : output
+ reg_mprj_io_15 = GPIO_MODE_USER_STD_OUTPUT; // 15 : output
+ reg_mprj_io_14 = GPIO_MODE_USER_STD_OUTPUT; // 14 : output
+ reg_mprj_io_13 = GPIO_MODE_USER_STD_OUTPUT; // 13 : output
+ reg_mprj_io_12 = GPIO_MODE_USER_STD_OUTPUT; // 12 : output
+ reg_mprj_io_11 = GPIO_MODE_USER_STD_OUTPUT; // 11 : output
+ reg_mprj_io_10 = GPIO_MODE_USER_STD_OUTPUT; // 10 : output
+ reg_mprj_io_9 = GPIO_MODE_USER_STD_OUTPUT; // 9 : output
+ reg_mprj_io_8 = GPIO_MODE_USER_STD_OUTPUT; // 8 : output
+ reg_mprj_io_7 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 7 : input
+ reg_mprj_io_5 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 5 : input
+ reg_mprj_io_4 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 4 : input
+ reg_mprj_io_3 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 3 : input
+ reg_mprj_io_2 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 2 : input
+ reg_mprj_io_1 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 1 : input
+ reg_mprj_io_0 = GPIO_MODE_USER_STD_OUTPUT; // 0 : output
+
+
+ // Set UART clock to 64 kbaud (enable before I/O configuration)
+ // reg_uart_clkdiv = 625;
+ reg_uart_enable = 1;
+
+ // Now, apply the configuration
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+
+ // Configure LA probes [31:0], [127:64] as inputs to the cpu
+ // Configure LA probes [63:32] as outputs from the cpu
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = MASK_DATA_37; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = MASK_ENABLE_37; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x80000000; // [127:96]
+
+ reg_la0_oenb = reg_la0_iena = MASK_DATA_0; // [31:0]
+ reg_la1_oenb = reg_la1_iena = MASK_ENABLE_0; // [63:32]
+ reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+
+ reg_la0_data = MASK_DATA_0;
+ reg_la1_data = 0x00000000;
+ reg_la2_data = 0x00000000;
+ reg_la3_data = 0x00000000;
+
+
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = 0x00000000; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+ // Flag start of the test
+
+
+ // Configure LA probes from [63:32] as inputs to disable counter write
+ //reg_la1_oenb = reg_la1_iena = 0x00000000;
+
+ while (1) {
+ if (reg_la0_data_in & MASK_DATA_1) {
+ break;
+ }
+ }
+ //print("\n");
+ //print("BEEP\n");
+ reg_la0_data = 0x00000000;
+ //print("\n");
+ //print("Monitor: Test 1 Passed\n\n"); // Makes simulation very long!
+}
+
diff --git a/verilog/dv/memory_test/memory_test_tb.v b/verilog/dv/memory_test/memory_test_tb.v
new file mode 100644
index 0000000..9f5a64c
--- /dev/null
+++ b/verilog/dv/memory_test/memory_test_tb.v
@@ -0,0 +1,322 @@
+// 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 memory_test_tb;
+ reg clock;
+ reg spi_clock;
+ reg RSTB;
+ reg CSB;
+
+ reg power1, power2;
+
+ wire gpio;
+ wire uart_tx;
+ wire [37:0] mprj_io;
+
+ wire core_to_tb;
+ reg tb_to_core;
+
+ reg enable_n;
+ reg trigger_in_n;
+ reg latch_data_n;
+ wire sclk;
+ reg mosi;
+ reg ss_n;
+ wire miso;
+ reg [31:0] tmp_data;
+
+ assign mprj_io[37] = enable_n;
+ assign mprj_io[36] = trigger_in_n;
+ assign mprj_io[35] = latch_data_n;
+ assign miso = mprj_io[34];
+ assign mprj_io[33] = mosi;
+ assign mprj_io[32] = ss_n;
+ assign mprj_io[31] = sclk;
+
+ assign mprj_io[7] = 1'b0;
+ assign uart_tx = mprj_io[6];
+ assign mprj_io[5] = 1'b0;
+ assign mprj_io[4] = 1'b0;
+ assign mprj_io[3] = 1'b1;
+ assign mprj_io[2] = 1'b0;
+ assign mprj_io[1] = tb_to_core;
+ assign core_to_tb = mprj_io[0];
+
+
+ always #12.5 clock <= (clock === 1'b0);
+ always #100 spi_clock <= ~spi_clock;
+
+
+ assign sclk = ~ss_n & spi_clock;
+
+ initial begin
+ clock = 0;
+ spi_clock = 1;
+ end
+
+ // Set the init state of input pins to asic
+ task init_signals;
+ begin
+ tb_to_core = 1'b0;
+ enable_n = 0;
+ trigger_in_n = 0;
+ latch_data_n = 0;
+ mosi = 0;
+ ss_n = 1;
+ wait_n_clks(50);
+ end
+ endtask
+ // set the enable signal to chip
+ task enable_chip;
+ begin
+ enable_n = 0;
+ end
+ endtask
+
+ // unset the enable signal to chip
+ task disable_chip;
+ begin
+ enable_n = 1;
+ end
+ endtask
+
+ // pass time
+ task wait_n_clks;
+ input integer i;
+ integer j;
+ begin
+ for(j=0;j<i;j=j+1)
+ @(posedge clock);
+ end
+ endtask
+
+ initial begin
+ $dumpfile("memory_test.vcd");
+ $dumpvars(0, memory_test_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (200) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test LA (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test LA (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ // transfer data on spi bus
+ task spi_shift;
+ input [31:0] data_in;
+ output [31:0] data_out;
+ integer j;
+ begin
+ for(j=0;j<32;j=j+1)
+ begin
+ @(negedge spi_clock);
+ ss_n = 1'b0;
+ mosi = data_in[31];
+ data_in = data_in << 1;
+ @(posedge spi_clock)
+ data_out = {data_out[31:0],miso};
+ end
+ @(negedge spi_clock);
+ ss_n = 1'b1;
+ @(posedge clock);
+ @(posedge clock);
+ end
+ endtask
+
+ task write_data;
+ input [7:0] address;
+ input [15:0] data;
+ reg [31:0] pass;
+ begin
+ @(posedge clock);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ spi_shift({8'h02,address,data},pass);
+ wait_n_clks(10);
+ latch_data_n = 0;
+ wait_n_clks(100);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ end
+ endtask
+
+ task read_data;
+ input [7:0] address;
+ output [15:0] data_out;
+ reg [31:0] pass;
+ begin
+ @(posedge clock);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ spi_shift({8'h01,address,16'b0},pass);
+ wait_n_clks(100);
+ latch_data_n = 0;
+ wait_n_clks(20);
+ latch_data_n = 1;
+ wait_n_clks(20);
+ spi_shift(32'b0,data_out);
+ wait_n_clks(20);
+ end
+ endtask
+
+
+ task memory_test;
+ input [7:0] address;
+ input [15:0] data;
+ reg [15:0] tmp;
+ begin
+ tmp = data;
+ write_data(address,tmp);
+ wait_n_clks(100);
+ read_data(address,tmp);
+ if(data === tmp)
+ begin
+ $display("SPI MEMORY TEST passed");
+ $display("address:%h\tdata:%h",address,tmp);
+ end
+ else
+ begin
+ $display("SPI MEMORY Test Failed");
+ $display("address:%h\tdata:%h",address,tmp);
+ end
+
+ end
+ endtask
+
+ initial begin
+ init_signals();
+ wait(core_to_tb === 1'b1);
+ $display("LA Test 1 started");
+ enable_chip();
+ wait_n_clks(50);
+ memory_test(8'h00,16'hFACE);
+ wait_n_clks(50);
+ memory_test(8'h01,16'hDEAD);
+ wait_n_clks(50);
+ memory_test(8'h02,16'hBEEF);
+ wait_n_clks(50);
+ memory_test(8'h03,16'hAAAA);
+ wait_n_clks(50);
+ memory_test(8'h04,16'h5555);
+ wait_n_clks(50);
+ memory_test(8'h05,16'hAA55);
+ wait_n_clks(50);
+ memory_test(8'h06,16'h55AA);
+ wait_n_clks(50);
+ memory_test(8'h07,16'hDADE);
+ wait_n_clks(50);
+ memory_test(8'h08,16'hFFFF);
+ wait_n_clks(50);
+ memory_test(8'h09,16'hDAED);
+ tb_to_core = 1'b1;
+ wait(core_to_tb === 1'b0);
+ tb_to_core = 1'b0;
+ #10000;
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #170000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ #200;
+ power1 <= 1'b1;
+ #200;
+ power2 <= 1'b1;
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD1V8;
+ wire VDD3V3;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ //assign mprj_io[3] = 1; // Force CSB high.
+ //assign mprj_io[0] = 0; // Disable debug mode
+
+ 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("memory_test.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+ // Testbench UART
+ tbuart tbuart (
+ .ser_rx(uart_tx)
+ );
+
+endmodule
+`default_nettype wire
diff --git a/verilog/dv/spi_transfer_test/Makefile b/verilog/dv/spi_transfer_test/Makefile
new file mode 100644
index 0000000..3fd0b56
--- /dev/null
+++ b/verilog/dv/spi_transfer_test/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/spi_transfer_test/spi_transfer_test.c b/verilog/dv/spi_transfer_test/spi_transfer_test.c
new file mode 100644
index 0000000..cd7c654
--- /dev/null
+++ b/verilog/dv/spi_transfer_test/spi_transfer_test.c
@@ -0,0 +1,230 @@
+/*
+ * 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>
+
+// --------------------------------------------------------
+
+/*
+ MPRJ Logic Analyzer Test:
+ - Observes counter value through LA probes [31:0]
+ - Sets counter initial value through LA probes [63:32]
+ - Flags when counter value exceeds 500 through the management SoC gpio
+ - Outputs message to the UART when the test concludes successfuly
+*/
+
+// LA 0
+#define MASK_DATA_0 0x00000001
+#define MASK_DATA_1 0x00000002
+#define MASK_DATA_2 0x00000004
+#define MASK_DATA_3 0x00000008
+#define MASK_DATA_4 0x00000010
+#define MASK_DATA_5 0x00000020
+#define MASK_DATA_6 0x00000040
+#define MASK_DATA_7 0x00000080
+#define MASK_DATA_8 0x00000100
+#define MASK_DATA_9 0x00000200
+#define MASK_DATA_10 0x00000400
+#define MASK_DATA_11 0x00000800
+#define MASK_DATA_12 0x00001000
+#define MASK_DATA_13 0x00002000
+#define MASK_DATA_14 0x00004000
+#define MASK_DATA_15 0x00008000
+#define MASK_DATA_16 0x00010000
+#define MASK_DATA_17 0x00020000
+#define MASK_DATA_18 0x00040000
+#define MASK_DATA_19 0x00080000
+#define MASK_DATA_20 0x00100000
+#define MASK_DATA_21 0x00200000
+#define MASK_DATA_22 0x00400000
+#define MASK_DATA_23 0x00800000
+#define MASK_DATA_24 0x01000000
+#define MASK_DATA_25 0x02000000
+#define MASK_DATA_26 0x04000000
+#define MASK_DATA_27 0x08000000
+#define MASK_DATA_28 0x10000000
+#define MASK_DATA_29 0x20000000
+#define MASK_DATA_30 0x40000000
+#define MASK_DATA_31 0x80000000
+
+// LA 1
+#define MASK_DATA_32 0x00000001
+#define MASK_DATA_33 0x00000002
+#define MASK_DATA_34 0x00000004
+#define MASK_DATA_35 0x00000008
+#define MASK_DATA_36 0x00000010
+#define MASK_DATA_37 0x00000020
+#define MASK_ENABLE_0 0x00000040
+#define MASK_ENABLE_1 0x00000080
+#define MASK_ENABLE_2 0x00000100
+#define MASK_ENABLE_3 0x00000200
+#define MASK_ENABLE_4 0x00000400
+#define MASK_ENABLE_5 0x00000800
+#define MASK_ENABLE_6 0x00001000
+#define MASK_ENABLE_7 0x00002000
+#define MASK_ENABLE_8 0x00004000
+#define MASK_ENABLE_9 0x00008000
+#define MASK_ENABLE_10 0x00010000
+#define MASK_ENABLE_11 0x00020000
+#define MASK_ENABLE_12 0x00040000
+#define MASK_ENABLE_13 0x00080000
+#define MASK_ENABLE_14 0x00100000
+#define MASK_ENABLE_15 0x00200000
+#define MASK_ENABLE_16 0x00400000
+#define MASK_ENABLE_17 0x00800000
+#define MASK_ENABLE_18 0x01000000
+#define MASK_ENABLE_19 0x02000000
+#define MASK_ENABLE_20 0x04000000
+#define MASK_ENABLE_21 0x08000000
+#define MASK_ENABLE_22 0x10000000
+#define MASK_ENABLE_23 0x20000000
+#define MASK_ENABLE_24 0x40000000
+#define MASK_ENABLE_25 0x80000000
+
+// LA 2
+#define MASK_ENABLE_26 0x00000001
+#define MASK_ENABLE_27 0x00000002
+#define MASK_ENABLE_28 0x00000004
+#define MASK_ENABLE_29 0x00000008
+#define MASK_ENABLE_30 0x00000010
+#define MASK_ENABLE_31 0x00000020
+#define MASK_ENABLE_32 0x00000040
+#define MASK_ENABLE_33 0x00000080
+#define MASK_ENABLE_34 0x00000100
+#define MASK_ENABLE_35 0x00000200
+#define MASK_ENABLE_36 0x00000400
+#define MASK_ENABLE_37 0x00000800
+void main()
+{
+ int j;
+
+ /* 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 = 0x00000;
+
+ // 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.
+
+ // The upper GPIO pins are configured to be output
+ // and accessble to the management SoC.
+ // Used to flad the start/end of a test
+ // The lower GPIO pins are configured to be output
+ // and accessible to the user project. They show
+ // the project count value, although this test is
+ // designed to read the project count through the
+ // logic analyzer probes.
+ // I/O 6 is configured for the UART Tx line
+
+ reg_mprj_io_37 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 37 : input
+ reg_mprj_io_36 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 36 : input
+ reg_mprj_io_35 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 35 : input
+ reg_mprj_io_34 = GPIO_MODE_USER_STD_OUTPUT; // 34 : output
+ reg_mprj_io_33 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 33 : input
+ reg_mprj_io_32 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 32 : input
+ reg_mprj_io_31 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 31 : input
+ reg_mprj_io_30 = GPIO_MODE_USER_STD_OUTPUT; // 30 : output
+ reg_mprj_io_29 = GPIO_MODE_USER_STD_OUTPUT; // 29 : output
+ reg_mprj_io_28 = GPIO_MODE_USER_STD_OUTPUT; // 28 : output
+ reg_mprj_io_27 = GPIO_MODE_USER_STD_OUTPUT; // 27 : output
+ reg_mprj_io_26 = GPIO_MODE_USER_STD_OUTPUT; // 26 : output
+ reg_mprj_io_25 = GPIO_MODE_USER_STD_OUTPUT; // 25 : output
+ reg_mprj_io_24 = GPIO_MODE_USER_STD_OUTPUT; // 24 : output
+ reg_mprj_io_23 = GPIO_MODE_USER_STD_OUTPUT; // 23 : output
+ reg_mprj_io_22 = GPIO_MODE_USER_STD_OUTPUT; // 22 : output
+ reg_mprj_io_21 = GPIO_MODE_USER_STD_OUTPUT; // 21 : output
+ reg_mprj_io_20 = GPIO_MODE_USER_STD_OUTPUT; // 20 : output
+ reg_mprj_io_19 = GPIO_MODE_USER_STD_OUTPUT; // 19 : output
+ reg_mprj_io_18 = GPIO_MODE_USER_STD_OUTPUT; // 18 : output
+ reg_mprj_io_17 = GPIO_MODE_USER_STD_OUTPUT; // 17 : output
+ reg_mprj_io_16 = GPIO_MODE_USER_STD_OUTPUT; // 16 : output
+ reg_mprj_io_15 = GPIO_MODE_USER_STD_OUTPUT; // 15 : output
+ reg_mprj_io_14 = GPIO_MODE_USER_STD_OUTPUT; // 14 : output
+ reg_mprj_io_13 = GPIO_MODE_USER_STD_OUTPUT; // 13 : output
+ reg_mprj_io_12 = GPIO_MODE_USER_STD_OUTPUT; // 12 : output
+ reg_mprj_io_11 = GPIO_MODE_USER_STD_OUTPUT; // 11 : output
+ reg_mprj_io_10 = GPIO_MODE_USER_STD_OUTPUT; // 10 : output
+ reg_mprj_io_9 = GPIO_MODE_USER_STD_OUTPUT; // 9 : output
+ reg_mprj_io_8 = GPIO_MODE_USER_STD_OUTPUT; // 8 : output
+ reg_mprj_io_7 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 7 : input
+ reg_mprj_io_5 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 5 : input
+ reg_mprj_io_4 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 4 : input
+ reg_mprj_io_3 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 3 : input
+ reg_mprj_io_2 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 2 : input
+ reg_mprj_io_1 = GPIO_MODE_USER_STD_INPUT_NOPULL; // 1 : input
+ reg_mprj_io_0 = GPIO_MODE_USER_STD_OUTPUT; // 0 : output
+
+
+ // Set UART clock to 64 kbaud (enable before I/O configuration)
+ // reg_uart_clkdiv = 625;
+ reg_uart_enable = 1;
+
+ // Now, apply the configuration
+ reg_mprj_xfer = 1;
+ while (reg_mprj_xfer == 1);
+
+ // Configure LA probes [31:0], [127:64] as inputs to the cpu
+ // Configure LA probes [63:32] as outputs from the cpu
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = MASK_DATA_37; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = MASK_ENABLE_37; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x80000000; // [127:96]
+
+ reg_la0_oenb = reg_la0_iena = MASK_DATA_0; // [31:0]
+ reg_la1_oenb = reg_la1_iena = MASK_ENABLE_0; // [63:32]
+ reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+
+ reg_la0_data = MASK_DATA_0;
+ reg_la1_data = 0x00000000;
+ reg_la2_data = 0x00000000;
+ reg_la3_data = 0x00000000;
+
+
+ //reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0]
+ //reg_la1_oenb = reg_la1_iena = 0x00000000; // [63:32]
+ //reg_la2_oenb = reg_la2_iena = 0x00000000; // [95:64]
+ //reg_la3_oenb = reg_la3_iena = 0x00000000; // [127:96]
+
+ // Flag start of the test
+
+
+ // Configure LA probes from [63:32] as inputs to disable counter write
+ //reg_la1_oenb = reg_la1_iena = 0x00000000;
+
+ while (1) {
+ if (reg_la0_data_in & MASK_DATA_1) {
+ break;
+ }
+ }
+ //print("\n");
+ //print("BEEP\n");
+ reg_la0_data = 0x00000000;
+ //print("\n");
+ //print("Monitor: Test 1 Passed\n\n"); // Makes simulation very long!
+}
+
diff --git a/verilog/dv/spi_transfer_test/spi_transfer_test_tb.v b/verilog/dv/spi_transfer_test/spi_transfer_test_tb.v
new file mode 100644
index 0000000..74730e9
--- /dev/null
+++ b/verilog/dv/spi_transfer_test/spi_transfer_test_tb.v
@@ -0,0 +1,256 @@
+// 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 spi_transfer_test_tb;
+ reg clock;
+ reg spi_clock;
+ reg RSTB;
+ reg CSB;
+
+ reg power1, power2;
+
+ wire gpio;
+ wire uart_tx;
+ wire [37:0] mprj_io;
+
+ wire core_to_tb;
+ reg tb_to_core;
+
+ reg enable_n;
+ reg trigger_in_n;
+ reg latch_data_n;
+ wire sclk;
+ reg mosi;
+ reg ss_n;
+ wire miso;
+ reg [31:0] tmp_data;
+
+ assign mprj_io[37] = enable_n;
+ assign mprj_io[36] = trigger_in_n;
+ assign mprj_io[35] = latch_data_n;
+ assign miso = mprj_io[34];
+ assign mprj_io[33] = mosi;
+ assign mprj_io[32] = ss_n;
+ assign mprj_io[31] = sclk;
+
+ assign mprj_io[7] = 1'b0;
+ assign uart_tx = mprj_io[6];
+ assign mprj_io[5] = 1'b0;
+ assign mprj_io[4] = 1'b0;
+ assign mprj_io[3] = 1'b1;
+ assign mprj_io[2] = 1'b0;
+ assign mprj_io[1] = tb_to_core;
+ assign core_to_tb = mprj_io[0];
+
+
+ always #12.5 clock <= (clock === 1'b0);
+ always #56.5 spi_clock <= ~spi_clock;
+
+
+ assign sclk = ~ss_n & spi_clock;
+
+ initial begin
+ clock = 0;
+ spi_clock = 1;
+ end
+
+ // Set the init state of input pins to asic
+ task init_signals;
+ begin
+ tb_to_core = 1'b0;
+ enable_n = 0;
+ trigger_in_n = 0;
+ latch_data_n = 0;
+ mosi = 0;
+ ss_n = 1;
+ wait_n_clks(50);
+ end
+ endtask
+ // set the enable signal to chip
+ task enable_chip;
+ begin
+ enable_n = 0;
+ end
+ endtask
+
+ // unset the enable signal to chip
+ task disable_chip;
+ begin
+ enable_n = 1;
+ end
+ endtask
+
+ // pass time
+ task wait_n_clks;
+ input integer i;
+ integer j;
+ begin
+ for(j=0;j<i;j=j+1)
+ @(posedge clock);
+ end
+ endtask
+
+ initial begin
+ $dumpfile("spi_transfer_test.vcd");
+ $dumpvars(0, spi_transfer_test_tb);
+
+ // Repeat cycles of 1000 clock edges as needed to complete testbench
+ repeat (200) begin
+ repeat (1000) @(posedge clock);
+ // $display("+1000 cycles");
+ end
+ $display("%c[1;31m",27);
+ `ifdef GL
+ $display ("Monitor: Timeout, Test LA (GL) Failed");
+ `else
+ $display ("Monitor: Timeout, Test LA (RTL) Failed");
+ `endif
+ $display("%c[0m",27);
+ $finish;
+ end
+
+ // transfer data on spi bus
+ task spi_shift;
+ input [31:0] data_in;
+ output [31:0] data_out;
+ integer j;
+ begin
+ for(j=0;j<32;j=j+1)
+ begin
+ @(negedge spi_clock);
+ ss_n = 1'b0;
+ mosi = data_in[31];
+ data_in = data_in << 1;
+ @(posedge spi_clock)
+ data_out = {data_out[31:0],miso};
+ end
+ @(negedge spi_clock);
+ ss_n = 1'b1;
+ @(posedge clock);
+ @(posedge clock);
+ end
+ endtask
+
+ initial begin
+ init_signals();
+ wait(core_to_tb === 1'b1);
+ $display("LA Test 1 started");
+ enable_chip();
+ wait_n_clks(50);
+ spi_shift(32'hBEEF_FACE,tmp_data);
+ wait_n_clks(50);
+ spi_shift(32'h0000_0000,tmp_data);
+ tb_to_core = 1'b1;
+ wait(core_to_tb === 1'b0);
+ tb_to_core = 1'b0;
+ if(tmp_data === 32'hBEEF_FACE)
+ begin
+ $display("SPI Passthrough 1 passed");
+ $display("%h",tmp_data);
+ end
+ else
+ begin
+ $display("SPI Passthrough Test Failed");
+ $display("%h",tmp_data);
+ end
+ #10000;
+ $finish;
+ end
+
+ initial begin
+ RSTB <= 1'b0;
+ CSB <= 1'b1; // Force CSB high
+ #2000;
+ RSTB <= 1'b1; // Release reset
+ #170000;
+ CSB = 1'b0; // CSB can be released
+ end
+
+ initial begin // Power-up sequence
+ power1 <= 1'b0;
+ power2 <= 1'b0;
+ #200;
+ power1 <= 1'b1;
+ #200;
+ power2 <= 1'b1;
+ end
+
+ wire flash_csb;
+ wire flash_clk;
+ wire flash_io0;
+ wire flash_io1;
+
+ wire VDD1V8;
+ wire VDD3V3;
+ wire VSS;
+
+ assign VDD3V3 = power1;
+ assign VDD1V8 = power2;
+ assign VSS = 1'b0;
+
+ //assign mprj_io[3] = 1; // Force CSB high.
+ //assign mprj_io[0] = 0; // Disable debug mode
+
+ 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("spi_transfer_test.hex")
+ ) spiflash (
+ .csb(flash_csb),
+ .clk(flash_clk),
+ .io0(flash_io0),
+ .io1(flash_io1),
+ .io2(), // not used
+ .io3() // not used
+ );
+
+ // Testbench UART
+ tbuart tbuart (
+ .ser_rx(uart_tx)
+ );
+
+endmodule
+`default_nettype wire
