| // 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 wb_port_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; |
| wire [15:0] checkbits; |
| |
| assign checkbits = mprj_io[31:16]; |
| |
| 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[0] ) ; |
| $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.sdf", uut.\gpio_defaults_block_0[0] ) ; |
| $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.\gpio_defaults_block_0[1] ) ; |
| $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.\gpio_defaults_block_2[0] ) ; |
| $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.\gpio_defaults_block_2[1] ) ; |
| $sdf_annotate("../../../caravel/sdf/gpio_defaults_block.sdf", uut.\gpio_defaults_block_2[2] ) ; |
| $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("wb_port.vcd"); |
| $dumpvars(0, wb_port_tb); |
| |
| // Repeat cycles of 1000 clock edges as needed to complete testbench |
| repeat (70) begin |
| repeat (1000) @(posedge clock); |
| // $display("+1000 cycles"); |
| end |
| $display("%c[1;31m",27); |
| `ifdef GL |
| $display ("Monitor: Timeout, Test Mega-Project WB Port (GL) Failed"); |
| `else |
| $display ("Monitor: Timeout, Test Mega-Project WB Port (RTL) Failed"); |
| `endif |
| $display("%c[0m",27); |
| $finish; |
| end |
| |
| initial begin |
| wait(checkbits == 16'hAB60); |
| $display("Monitor: MPRJ-Logic WB Started"); |
| wait(checkbits == 16'hAB61); |
| `ifdef GL |
| $display("Monitor: Mega-Project WB (GL) Passed"); |
| `else |
| $display("Monitor: Mega-Project WB (RTL) Passed"); |
| `endif |
| $finish; |
| end |
| |
| initial begin |
| RSTB <= 1'b0; |
| CSB <= 1'b1; // Force CSB high |
| #2000; |
| RSTB <= 1'b1; // Release reset |
| #100000; |
| 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 VDD3V3 = power1; |
| wire VDD1V8 = power2; |
| wire USER_VDD3V3 = power3; |
| wire USER_VDD1V8 = power4; |
| wire 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("wb_port.hex") |
| ) spiflash ( |
| .csb(flash_csb), |
| .clk(flash_clk), |
| .io0(flash_io0), |
| .io1(flash_io1), |
| .io2(), // not used |
| .io3() // not used |
| ); |
| |
| endmodule |
| `default_nettype wire |
