| //////////////////////////////////////////////////////////////////////////// |
| // SPDX-FileCopyrightText: 2021 , Dinesh Annayya |
| // |
| // 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 |
| // SPDX-FileContributor: Modified by Dinesh Annayya <dinesha@opencores.org> |
| ////////////////////////////////////////////////////////////////////// |
| //// //// |
| //// Standalone User validation Test bench //// |
| //// //// |
| //// This file is part of the YIFive cores project //// |
| //// https://github.com/dineshannayya/yifive_r0.git //// |
| //// //// |
| //// Description //// |
| //// This is a standalone test bench to validate the //// |
| //// pwm interfaface through External WB i/F. //// |
| //// //// |
| //// To Do: //// |
| //// nothing //// |
| //// //// |
| //// Author(s): //// |
| //// - Dinesh Annayya, dinesha@opencores.org //// |
| //// //// |
| //// Revision : //// |
| //// 0.1 - 01 Oct 2021, Dinesh A //// |
| //// //// |
| ////////////////////////////////////////////////////////////////////// |
| //// //// |
| //// Copyright (C) 2000 Authors and OPENCORES.ORG //// |
| //// //// |
| //// This source file may be used and distributed without //// |
| //// restriction provided that this copyright statement is not //// |
| //// removed from the file and that any derivative work contains //// |
| //// the original copyright notice and the associated disclaimer. //// |
| //// //// |
| //// This source file is free software; you can redistribute it //// |
| //// and/or modify it under the terms of the GNU Lesser General //// |
| //// Public License as published by the Free Software Foundation; //// |
| //// either version 2.1 of the License, or (at your option) any //// |
| //// later version. //// |
| //// //// |
| //// This source is distributed in the hope that it will be //// |
| //// useful, but WITHOUT ANY WARRANTY; without even the implied //// |
| //// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //// |
| //// PURPOSE. See the GNU Lesser General Public License for more //// |
| //// details. //// |
| //// //// |
| //// You should have received a copy of the GNU Lesser General //// |
| //// Public License along with this source; if not, download it //// |
| //// from http://www.opencores.org/lgpl.shtml //// |
| //// //// |
| ////////////////////////////////////////////////////////////////////// |
| |
| `default_nettype wire |
| |
| `timescale 1 ns / 1 ps |
| |
| |
| `define TB_GLBL user_pwm_tb |
| |
| `include "sram_macros/sky130_sram_2kbyte_1rw1r_32x512_8.v" |
| |
| |
| module user_pwm_tb; |
| reg clock; |
| reg wb_rst_i; |
| reg power1, power2; |
| reg power3, power4; |
| |
| reg wbd_ext_cyc_i; // strobe/request |
| reg wbd_ext_stb_i; // strobe/request |
| reg [31:0] wbd_ext_adr_i; // address |
| reg wbd_ext_we_i; // write |
| reg [31:0] wbd_ext_dat_i; // data output |
| reg [3:0] wbd_ext_sel_i; // byte enable |
| |
| wire [31:0] wbd_ext_dat_o; // data input |
| wire wbd_ext_ack_o; // acknowlegement |
| wire wbd_ext_err_o; // error |
| |
| // User I/O |
| wire [37:0] io_oeb; |
| wire [37:0] io_out; |
| wire [37:0] io_in; |
| |
| |
| reg [1:0] spi_chip_no; |
| |
| wire gpio; |
| wire [37:0] mprj_io; |
| wire [7:0] mprj_io_0; |
| reg test_fail; |
| reg [31:0] read_data; |
| reg [31:0] OneMsPeriod; |
| integer test_step; |
| wire clock_mon; |
| |
| |
| // 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 |
| OneMsPeriod = 1000; |
| clock = 0; |
| wbd_ext_cyc_i ='h0; // strobe/request |
| wbd_ext_stb_i ='h0; // strobe/request |
| wbd_ext_adr_i ='h0; // address |
| wbd_ext_we_i ='h0; // write |
| wbd_ext_dat_i ='h0; // data output |
| wbd_ext_sel_i ='h0; // byte enable |
| end |
| |
| `ifdef WFDUMP |
| initial begin |
| $dumpfile("simx.vcd"); |
| $dumpvars(1, `TB_GLBL); |
| $dumpvars(0, `TB_GLBL.u_top.u_wb_host); |
| $dumpvars(0, `TB_GLBL.u_top.u_pinmux); |
| $dumpvars(0, `TB_GLBL.u_top.u_intercon); |
| end |
| `endif |
| |
| initial begin |
| $dumpon; |
| |
| #200; // Wait for reset removal |
| repeat (10) @(posedge clock); |
| $display("Monitor: Standalone User Risc Boot Test Started"); |
| |
| // Remove Wb Reset |
| wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_GLBL_CFG,'h1); |
| |
| // Enable PWM Multi Functional Ports |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GPIO_MULTI_FUNC,'h03F); |
| |
| repeat (2) @(posedge clock); |
| #1; |
| |
| // Remove the reset |
| // Remove WB and SPI/UART Reset, Keep CORE under Reset |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'h01F); |
| |
| // config 1us based on system clock - 1000/25ns = 40 |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG1,39); |
| |
| test_fail = 0; |
| repeat (200) @(posedge clock); |
| wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_BANK_SEL,'h1000); // Change the Bank Sel 1000 |
| |
| $display("Step-1, PWM-0: 1ms/2 = 500Hz; PWM-1: 1ms/3; PWM-2: 1ms/4, PWM-3: 1ms/5, PWM-4: 1ms/6, PWM-5: 1ms/7"); |
| test_step = 1; |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_CFG_PWM0,'h0000_0000); |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_CFG_PWM1,'h0000_0001); |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_CFG_PWM2,'h0001_0001); |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_CFG_PWM3,'h0001_0002); |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_CFG_PWM4,'h0002_0002); |
| wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_CFG_PWM5,'h0002_0003); |
| pwm_monitor(OneMsPeriod*2,OneMsPeriod*3,OneMsPeriod*4,OneMsPeriod*5,OneMsPeriod*6,OneMsPeriod*7); |
| |
| repeat (100) @(posedge clock); |
| // $display("+1000 cycles"); |
| |
| if(test_fail == 0) begin |
| `ifdef GL |
| $display("Monitor: PWM Mode (GL) Passed"); |
| `else |
| $display("Monitor: PWM Mode (RTL) Passed"); |
| `endif |
| end else begin |
| `ifdef GL |
| $display("Monitor: PWM Mode (GL) Failed"); |
| `else |
| $display("Monitor: PWM Mode (RTL) Failed"); |
| `endif |
| end |
| $display("###################################################"); |
| $finish; |
| end |
| |
| initial begin |
| wb_rst_i <= 1'b1; |
| #100; |
| wb_rst_i <= 1'b0; // Release reset |
| end |
| wire USER_VDD1V8 = 1'b1; |
| wire VSS = 1'b0; |
| |
| wire pwm0 = io_out[4]; |
| wire pwm1 = io_out[8]; |
| wire pwm2 = io_out[9]; |
| wire pwm3 = io_out[12]; |
| wire pwm4 = io_out[13]; |
| wire pwm5 = io_out[14]; |
| |
| |
| task pwm_monitor; |
| input [31:0] pwm0_period; |
| input [31:0] pwm1_period; |
| input [31:0] pwm2_period; |
| input [31:0] pwm3_period; |
| input [31:0] pwm4_period; |
| input [31:0] pwm5_period; |
| begin |
| force clock_mon = pwm0; |
| check_clock_period("PWM0 Clock",pwm0_period); |
| release clock_mon; |
| |
| force clock_mon = pwm1; |
| check_clock_period("PWM1 Clock",pwm1_period); |
| release clock_mon; |
| |
| force clock_mon = pwm2; |
| check_clock_period("PWM2 Clock",pwm2_period); |
| release clock_mon; |
| |
| force clock_mon = pwm3; |
| check_clock_period("PWM3 Clock",pwm3_period); |
| release clock_mon; |
| |
| force clock_mon = pwm4; |
| check_clock_period("PWM4 Clock",pwm4_period); |
| release clock_mon; |
| |
| force clock_mon = pwm5; |
| check_clock_period("PWM5 Clock",pwm5_period); |
| release clock_mon; |
| end |
| endtask |
| |
| |
| //---------------------------------- |
| // Check the clock period |
| //---------------------------------- |
| task check_clock_period; |
| input [127:0] clk_name; |
| input [31:0] clk_period; // in NS |
| time prev_t, next_t, periodd; |
| begin |
| $timeformat(-12,3,"ns",10); |
| repeat(1) @(posedge clock_mon); |
| repeat(1) @(posedge clock_mon); |
| prev_t = $realtime; |
| repeat(2) @(posedge clock_mon); |
| next_t = $realtime; |
| periodd = (next_t-prev_t)/2; |
| periodd = (periodd)/1e3; |
| if(clk_period != periodd) begin |
| $display("STATUS: FAIL => %s Exp Period: %d ms Rxd: %d ms",clk_name,clk_period,periodd); |
| test_fail = 1; |
| end else begin |
| $display("STATUS: PASS => %s Period: %d ms ",clk_name,clk_period); |
| end |
| end |
| endtask |
| |
| user_project_wrapper u_top( |
| `ifdef USE_POWER_PINS |
| .vccd1(USER_VDD1V8), // User area 1 1.8V supply |
| .vssd1(VSS), // User area 1 digital ground |
| `endif |
| .wb_clk_i (clock), // System clock |
| .user_clock2 (1'b1), // Real-time clock |
| .wb_rst_i (wb_rst_i), // Regular Reset signal |
| |
| .wbs_cyc_i (wbd_ext_cyc_i), // strobe/request |
| .wbs_stb_i (wbd_ext_stb_i), // strobe/request |
| .wbs_adr_i (wbd_ext_adr_i), // address |
| .wbs_we_i (wbd_ext_we_i), // write |
| .wbs_dat_i (wbd_ext_dat_i), // data output |
| .wbs_sel_i (wbd_ext_sel_i), // byte enable |
| |
| .wbs_dat_o (wbd_ext_dat_o), // data input |
| .wbs_ack_o (wbd_ext_ack_o), // acknowlegement |
| |
| |
| // Logic Analyzer Signals |
| .la_data_in ('1) , |
| .la_data_out (), |
| .la_oenb ('0), |
| |
| |
| // IOs |
| .io_in (io_in) , |
| .io_out (io_out) , |
| .io_oeb (io_oeb) , |
| |
| .user_irq () |
| |
| ); |
| |
| `ifndef GL // Drive Power for Hold Fix Buf |
| // All standard cell need power hook-up for functionality work |
| initial begin |
| |
| end |
| `endif |
| |
| |
| |
| //---------------------------------------------------- |
| // Task |
| // -------------------------------------------------- |
| task test_err; |
| begin |
| test_fail = 1; |
| end |
| endtask |
| |
| task wb_user_core_write; |
| input [31:0] address; |
| input [31:0] data; |
| begin |
| repeat (1) @(posedge clock); |
| #1; |
| wbd_ext_adr_i =address; // address |
| wbd_ext_we_i ='h1; // write |
| wbd_ext_dat_i =data; // data output |
| wbd_ext_sel_i ='hF; // byte enable |
| wbd_ext_cyc_i ='h1; // strobe/request |
| wbd_ext_stb_i ='h1; // strobe/request |
| wait(wbd_ext_ack_o == 1); |
| repeat (1) @(posedge clock); |
| #1; |
| wbd_ext_cyc_i ='h0; // strobe/request |
| wbd_ext_stb_i ='h0; // strobe/request |
| wbd_ext_adr_i ='h0; // address |
| wbd_ext_we_i ='h0; // write |
| wbd_ext_dat_i ='h0; // data output |
| wbd_ext_sel_i ='h0; // byte enable |
| $display("STATUS: WB USER ACCESS WRITE Address : 0x%x, Data : 0x%x",address,data); |
| repeat (2) @(posedge clock); |
| end |
| endtask |
| |
| task wb_user_core_read; |
| input [31:0] address; |
| output [31:0] data; |
| reg [31:0] data; |
| begin |
| repeat (1) @(posedge clock); |
| #1; |
| wbd_ext_adr_i =address; // address |
| wbd_ext_we_i ='h0; // write |
| wbd_ext_dat_i ='0; // data output |
| wbd_ext_sel_i ='hF; // byte enable |
| wbd_ext_cyc_i ='h1; // strobe/request |
| wbd_ext_stb_i ='h1; // strobe/request |
| wait(wbd_ext_ack_o == 1); |
| repeat (1) @(negedge clock); |
| data = wbd_ext_dat_o; |
| repeat (1) @(posedge clock); |
| #1; |
| wbd_ext_cyc_i ='h0; // strobe/request |
| wbd_ext_stb_i ='h0; // strobe/request |
| wbd_ext_adr_i ='h0; // address |
| wbd_ext_we_i ='h0; // write |
| wbd_ext_dat_i ='h0; // data output |
| wbd_ext_sel_i ='h0; // byte enable |
| //$display("STATUS: WB USER ACCESS READ Address : 0x%x, Data : 0x%x",address,data); |
| repeat (2) @(posedge clock); |
| end |
| endtask |
| |
| task wb_user_core_read_check; |
| input [31:0] address; |
| output [31:0] data; |
| input [31:0] cmp_data; |
| reg [31:0] data; |
| begin |
| repeat (1) @(posedge clock); |
| #1; |
| wbd_ext_adr_i =address; // address |
| wbd_ext_we_i ='h0; // write |
| wbd_ext_dat_i ='0; // data output |
| wbd_ext_sel_i ='hF; // byte enable |
| wbd_ext_cyc_i ='h1; // strobe/request |
| wbd_ext_stb_i ='h1; // strobe/request |
| wait(wbd_ext_ack_o == 1); |
| repeat (1) @(negedge clock); |
| data = wbd_ext_dat_o; |
| repeat (1) @(posedge clock); |
| #1; |
| wbd_ext_cyc_i ='h0; // strobe/request |
| wbd_ext_stb_i ='h0; // strobe/request |
| wbd_ext_adr_i ='h0; // address |
| wbd_ext_we_i ='h0; // write |
| wbd_ext_dat_i ='h0; // data output |
| wbd_ext_sel_i ='h0; // byte enable |
| if(data !== cmp_data) begin |
| $display("ERROR : WB USER ACCESS READ Address : 0x%x, Exd: 0x%x Rxd: 0x%x ",address,cmp_data,data); |
| `TB_GLBL.test_fail = 1; |
| end else begin |
| $display("STATUS: WB USER ACCESS READ Address : 0x%x, Data : 0x%x",address,data); |
| end |
| repeat (2) @(posedge clock); |
| end |
| endtask |
| |
| |
| `ifdef GL |
| |
| wire wbd_spi_stb_i = u_top.u_qspi_master.wbd_stb_i; |
| wire wbd_spi_ack_o = u_top.u_qspi_master.wbd_ack_o; |
| wire wbd_spi_we_i = u_top.u_qspi_master.wbd_we_i; |
| wire [31:0] wbd_spi_adr_i = u_top.u_qspi_master.wbd_adr_i; |
| wire [31:0] wbd_spi_dat_i = u_top.u_qspi_master.wbd_dat_i; |
| wire [31:0] wbd_spi_dat_o = u_top.u_qspi_master.wbd_dat_o; |
| wire [3:0] wbd_spi_sel_i = u_top.u_qspi_master.wbd_sel_i; |
| |
| wire wbd_uart_stb_i = u_top.u_uart_i2c_usb_spi.reg_cs; |
| wire wbd_uart_ack_o = u_top.u_uart_i2c_usb_spi.reg_ack; |
| wire wbd_uart_we_i = u_top.u_uart_i2c_usb_spi.reg_wr; |
| wire [8:0] wbd_uart_adr_i = u_top.u_uart_i2c_usb_spi.reg_addr; |
| wire [7:0] wbd_uart_dat_i = u_top.u_uart_i2c_usb_spi.reg_wdata; |
| wire [7:0] wbd_uart_dat_o = u_top.u_uart_i2c_usb_spi.reg_rdata; |
| wire wbd_uart_sel_i = u_top.u_uart_i2c_usb_spi.reg_be; |
| |
| `endif |
| |
| /** |
| `ifdef GL |
| //----------------------------------------------------------------------------- |
| // RISC IMEM amd DMEM Monitoring TASK |
| //----------------------------------------------------------------------------- |
| |
| `define RISC_CORE user_uart_tb.u_top.u_core.u_riscv_top |
| |
| always@(posedge `RISC_CORE.wb_clk) begin |
| if(`RISC_CORE.wbd_imem_ack_i) |
| $display("RISCV-DEBUG => IMEM ADDRESS: %x Read Data : %x", `RISC_CORE.wbd_imem_adr_o,`RISC_CORE.wbd_imem_dat_i); |
| if(`RISC_CORE.wbd_dmem_ack_i && `RISC_CORE.wbd_dmem_we_o) |
| $display("RISCV-DEBUG => DMEM ADDRESS: %x Write Data: %x Resonse: %x", `RISC_CORE.wbd_dmem_adr_o,`RISC_CORE.wbd_dmem_dat_o); |
| if(`RISC_CORE.wbd_dmem_ack_i && !`RISC_CORE.wbd_dmem_we_o) |
| $display("RISCV-DEBUG => DMEM ADDRESS: %x READ Data : %x Resonse: %x", `RISC_CORE.wbd_dmem_adr_o,`RISC_CORE.wbd_dmem_dat_i); |
| end |
| |
| `endif |
| **/ |
| |
| endmodule |
| `default_nettype wire |
