| //////////////////////////////////////////////////////////////////////////// |
| // 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 //// |
| //// http://www.opencores.org/cores/yifive/ //// |
| //// //// |
| //// Description //// |
| //// This is a standalone test bench to validate the //// |
| //// Digital core using uart master i/f. //// |
| //// //// |
| //// To Do: //// |
| //// nothing //// |
| //// //// |
| //// Author(s): //// |
| //// - Dinesh Annayya, dinesha@opencores.org //// |
| //// //// |
| //// Revision : //// |
| //// 0.1 - 16th Feb 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 |
| |
| `include "sram_macros/sky130_sram_2kbyte_1rw1r_32x512_8.v" |
| `include "uart_agent.v" |
| `include "user_params.svh" |
| |
| `define TB_TOP user_uart_master_tb |
| |
| module `TB_TOP; |
| |
| parameter real CLK1_PERIOD = 25; |
| parameter real CLK2_PERIOD = 2.5; |
| parameter real IPLL_PERIOD = 5.008; |
| parameter real XTAL_PERIOD = 6; |
| |
| `include "user_tasks.sv" |
| |
| //---------------------------------- |
| // Uart Configuration |
| // --------------------------------- |
| reg [1:0] uart_data_bit ; |
| reg uart_stop_bits ; // 0: 1 stop bit; 1: 2 stop bit; |
| reg uart_stick_parity ; // 1: force even parity |
| reg uart_parity_en ; // parity enable |
| reg uart_even_odd_parity ; // 0: odd parity; 1: even parity |
| |
| reg [7:0] uart_data ; |
| reg [15:0] uart_divisor ; // divided by n * 16 |
| reg [15:0] uart_timeout ;// wait time limit |
| |
| reg [15:0] uart_rx_nu ; |
| reg [15:0] uart_tx_nu ; |
| reg [7:0] uart_write_data [0:39]; |
| reg uart_fifo_enable ; // fifo mode disable |
| |
| reg flag; |
| reg [15:0] strap_in; |
| |
| |
| integer i,j; |
| |
| |
| `ifdef WFDUMP |
| initial begin |
| $dumpfile("risc_boot.vcd"); |
| $dumpvars(0, `TB_TOP); |
| end |
| `endif |
| |
| initial |
| begin |
| strap_in = 0; |
| strap_in[`PSTRAP_UARTM_CFG] = 2'b11; // uart master config control - load from LA |
| apply_strap(strap_in); |
| |
| uart_data_bit = 2'b11; |
| uart_stop_bits = 1; // 0: 1 stop bit; 1: 2 stop bit; |
| uart_stick_parity = 0; // 1: force even parity |
| uart_parity_en = 0; // parity enable |
| uart_even_odd_parity = 1; // 0: odd parity; 1: even parity |
| uart_divisor = 15;// divided by n * 16 |
| uart_timeout = 600;// wait time limit |
| uart_fifo_enable = 0; // fifo mode disable |
| |
| // UPDATE the RTL UART MASTER |
| la_data_in[1] = 1; // Enable Transmit Path |
| la_data_in[2] = 1; // Enable Received Path |
| la_data_in[3] = 1; // Enable Received Path |
| la_data_in[15:4] = ((uart_divisor+1)/16)-1; // Divisor value |
| la_data_in[17:16] = 2'b00; // priority mode, 0 -> nop, 1 -> Even, 2 -> Odd |
| |
| #100; |
| |
| $display("Monitor: Standalone User Uart master Test Started"); |
| |
| tb_master_uart.debug_mode = 0; // disable debug display |
| tb_master_uart.uart_init; |
| tb_master_uart.control_setup (uart_data_bit, uart_stop_bits, uart_parity_en, uart_even_odd_parity, |
| uart_stick_parity, uart_timeout, uart_divisor); |
| |
| //$write ("\n(%t)Response:\n",$time); |
| flag = 0; |
| while(flag == 0) |
| begin |
| tb_master_uart.read_char(read_data,flag); |
| $write ("%c",read_data); |
| end |
| |
| |
| // Remove Wb Reset |
| //uartm_reg_write(`ADDR_SPACE_WBHOST+`WBHOST_GLBL_CFG,'h1); |
| |
| repeat (2) @(posedge clock); |
| #1; |
| |
| $display("Monitor: Writing expected value"); |
| |
| test_fail = 0; |
| uartm_reg_write(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_0,32'h11223344); |
| uartm_reg_write(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_1,32'h22334455); |
| uartm_reg_write(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_2,32'h33445566); |
| uartm_reg_write(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_3,32'h44556677); |
| uartm_reg_write(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_4,32'h55667788); |
| uartm_reg_write(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_5,32'h66778899); |
| |
| uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_0,32'h11223344); |
| uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_1,32'h22334455); |
| uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_2,32'h33445566); |
| uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_3,32'h44556677); |
| uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_4,32'h55667788); |
| uartm_reg_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_5,32'h66778899); |
| |
| |
| |
| $display("###################################################"); |
| if(test_fail == 0) begin |
| `ifdef GL |
| $display("Monitor: %m (GL) Passed"); |
| `else |
| $display("Monitor: %m (RTL) Passed"); |
| `endif |
| end else begin |
| `ifdef GL |
| $display("Monitor: %m (GL) Failed"); |
| `else |
| $display("Monitor: %m (RTL) Failed"); |
| `endif |
| end |
| $display("###################################################"); |
| #100 |
| $finish; |
| end |
| |
| |
| // SSPI Slave I/F |
| assign io_in[5] = 1'b1; // RESET |
| assign io_in[21] = 1'b0; // CLOCK |
| |
| |
| //--------------------------- |
| // UART Agent integration |
| // -------------------------- |
| wire uart_txd,uart_rxd; |
| |
| assign uart_txd = io_out[7]; |
| assign io_in[6] = uart_rxd ; |
| |
| uart_agent tb_master_uart( |
| .mclk (clock ), |
| .txd (uart_rxd ), |
| .rxd (uart_txd ) |
| ); |
| |
| |
| |
| `include "uart_master_tasks.sv" |
| endmodule |
| `default_nettype wire |
