| //////////////////////////////////////////////////////////////////////////// |
| // 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 Riscduino cores project //// |
| //// //// |
| //// Description //// |
| //// To validate FPU Core //// |
| //// //// |
| //// To Do: //// |
| //// nothing //// |
| //// //// |
| //// Author(s): //// |
| //// - Dinesh Annayya, dinesha@opencores.org //// |
| //// //// |
| //// Revision : //// |
| //// 0.1 - 10th Nov 2022, 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 ns |
| |
| `include "sram_macros/sky130_sram_2kbyte_1rw1r_32x512_8.v" |
| `include "uart_agent.v" |
| |
| `define TB_HEX "user_fpu_core.hex" |
| `define TB_TOP user_fpu_core_tb |
| module `TB_TOP; |
| |
| parameter real CLK1_PERIOD = 20; // 50Mhz |
| 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 |
| |
| |
| |
| /************* Port-B Mapping ********************************** |
| * Pin-14 PB0/CLKO/ICP1 digital_io[16] |
| * Pin-15 PB1/SS[1]OC1A(PWM3) digital_io[17] |
| * Pin-16 PB2/SS[0]/OC1B(PWM4) digital_io[18] |
| * Pin-17 PB3/MOSI/OC2A(PWM5) digital_io[19] |
| * Pin-18 PB4/MISO digital_io[20] |
| * Pin-19 PB5/SCK digital_io[21] |
| * Pin-9 PB6/XTAL1/TOSC1 digital_io[11] |
| * Pin-10 PB7/XTAL2/TOSC2 digital_io[12] |
| * ********************************************************/ |
| |
| wire [7:0] port_b_in = { io_out[12], |
| io_out[11], |
| io_out[21], |
| io_out[20], |
| io_out[19], |
| io_out[18], |
| io_out[17], |
| io_out[16] |
| }; |
| initial begin |
| test_fail = 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(2, `TB_TOP); |
| $dumpvars(0, `TB_TOP.u_top.u_fpu); |
| $dumpvars(0, `TB_TOP.u_top.u_riscv_top); |
| $dumpvars(0, `TB_TOP.u_top.u_pinmux); |
| end |
| `endif |
| |
| initial begin |
| |
| $value$plusargs("risc_core_id=%d", d_risc_id); |
| init(); |
| |
| uart_data_bit = 2'b11; |
| uart_stop_bits = 0; // 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 = 500;// wait time limit |
| uart_fifo_enable = 0; // fifo mode disable |
| |
| #200; // Wait for reset removal |
| repeat (10) @(posedge clock); |
| $display("Monitor: Standalone User Uart Test Started"); |
| |
| // Remove Wb Reset |
| //wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_GLBL_CFG,'h1); |
| |
| // Enable UART Multi Functional Ports |
| wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_MUTI_FUNC,'h100); |
| |
| wait_riscv_boot(); |
| repeat (2) @(posedge clock); |
| #1; |
| // Remove all the reset |
| if(d_risc_id == 0) begin |
| $display("STATUS: Working with Risc core 0"); |
| //wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h11F); |
| end else if(d_risc_id == 1) begin |
| $display("STATUS: Working with Risc core 1"); |
| wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h21F); |
| end else if(d_risc_id == 2) begin |
| $display("STATUS: Working with Risc core 2"); |
| wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h41F); |
| end else if(d_risc_id == 3) begin |
| $display("STATUS: Working with Risc core 3"); |
| wb_user_core_write(`ADDR_SPACE_GLBL+`GLBL_CFG_CFG0,'h81F); |
| end |
| |
| repeat (100) @(posedge clock); // wait for Processor Get Ready |
| |
| tb_uart.uart_init; |
| wb_user_core_write(`ADDR_SPACE_UART0+8'h0,{3'h0,2'b00,1'b1,1'b1,1'b1}); |
| tb_uart.control_setup (uart_data_bit, uart_stop_bits, uart_parity_en, uart_even_odd_parity, |
| uart_stick_parity, uart_timeout, uart_divisor); |
| |
| // Set the PORT-B Direction as Output |
| wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_DSEL,'h0000FF00); |
| // Set the GPIO Output data: 0x00000000 |
| wb_user_core_write(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,'h0000000); |
| |
| fork |
| begin |
| repeat (1400000) @(posedge clock); |
| end |
| begin |
| wait(port_b_in == 8'h18 || port_b_in == 8'hA8); |
| end |
| begin |
| while(1) begin |
| wb_user_core_read(`ADDR_SPACE_GPIO+`GPIO_CFG_ODATA,read_data); |
| repeat (1000) @(posedge clock); |
| end |
| end |
| join_any |
| |
| wb_user_core_read_check(`ADDR_SPACE_GLBL+`GLBL_CFG_SOFT_REG_0,read_data,32'h00000000); |
| |
| $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 ; // SPIS SCK |
| |
| |
| //------------------------------------------------------ |
| // Integrate the Serial flash with qurd support to |
| // user core using the gpio pads |
| // ---------------------------------------------------- |
| |
| wire flash_clk = io_out[28]; |
| wire flash_csb = io_out[29]; |
| // Creating Pad Delay |
| wire #1 io_oeb_29 = io_oeb[33]; |
| wire #1 io_oeb_30 = io_oeb[34]; |
| wire #1 io_oeb_31 = io_oeb[35]; |
| wire #1 io_oeb_32 = io_oeb[36]; |
| tri #1 flash_io0 = (io_oeb_29== 1'b0) ? io_out[33] : 1'bz; |
| tri #1 flash_io1 = (io_oeb_30== 1'b0) ? io_out[34] : 1'bz; |
| tri #1 flash_io2 = (io_oeb_31== 1'b0) ? io_out[35] : 1'bz; |
| tri #1 flash_io3 = (io_oeb_32== 1'b0) ? io_out[36] : 1'bz; |
| |
| assign io_in[33] = flash_io0; |
| assign io_in[34] = flash_io1; |
| assign io_in[35] = flash_io2; |
| assign io_in[36] = flash_io3; |
| |
| // Quard flash |
| s25fl256s #(.mem_file_name(`TB_HEX), |
| .otp_file_name("none"), |
| .TimingModel("S25FL512SAGMFI010_F_30pF")) |
| u_spi_flash_256mb ( |
| // Data Inputs/Outputs |
| .SI (flash_io0), |
| .SO (flash_io1), |
| // Controls |
| .SCK (flash_clk), |
| .CSNeg (flash_csb), |
| .WPNeg (flash_io2), |
| .HOLDNeg (flash_io3), |
| .RSTNeg (!wb_rst_i) |
| |
| ); |
| |
| |
| //--------------------------- |
| // UART Agent integration |
| // -------------------------- |
| wire uart_txd,uart_rxd; |
| |
| assign uart_txd = io_out[7]; |
| assign io_in[6] = uart_rxd ; |
| |
| uart_agent tb_uart( |
| .mclk (clock ), |
| .txd (uart_rxd ), |
| .rxd (uart_txd ) |
| ); |
| |
| |
| |
| endmodule |
| `include "s25fl256s.sv" |
| `default_nettype wire |
