Files
ciciec2026_loongson/sim/mycpu_tb.v

226 lines
7.1 KiB
Verilog

/*------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Copyright (c) 2016, Loongson Technology Corporation Limited.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
3. Neither the name of Loongson Technology Corporation Limited nor the names of
its contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL LOONGSON TECHNOLOGY CORPORATION LIMITED BE LIABLE
TO ANY PARTY FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--------------------------------------------------------------------------------
------------------------------------------------------------------------------*/
`timescale 1ns / 1ps
`include "config.h"
// `define FFT_OUTPUT_TXT
`define UART_PSEL u_soc_top.u_axi_uart_controller.uart0.PSEL
`define UART_PENBLE u_soc_top.u_axi_uart_controller.uart0.PENABLE
`define UART_PWRITE u_soc_top.u_axi_uart_controller.uart0.PWRITE
`define UART_WADDR u_soc_top.u_axi_uart_controller.uart0.PADDR[7:0]
`define UART_WDATA u_soc_top.u_axi_uart_controller.uart0.PWDATA[7:0]
`define END_PC 32'h1c000200
module tb_top( );
reg reset;
reg clk;
reg [3:0] touch_btn;
reg [31:0] dip_sw;
wire UART_RX;
wire UART_TX;
wire [2:0] video_red;
wire [2:0] video_green;
wire [1:0] video_blue;
wire video_hsync;
wire video_vsync;
wire video_clk;
wire video_de;
wire [15:0] leds;
wire [7:0] dpy0;
wire [7:0] dpy1;
wire [19:0] base_ram_addr;
wire [ 3:0] base_ram_be_n;
wire base_ram_ce_n;
wire base_ram_oe_n;
wire base_ram_we_n;
wire [19:0] ext_ram_addr;
wire [ 3:0] ext_ram_be_n;
wire ext_ram_ce_n;
wire ext_ram_oe_n;
wire ext_ram_we_n;
wire [31:0] base_ram_data;
wire [31:0] ext_ram_data;
//产生时钟与复位信号
initial begin
clk = 1'b0;
reset = 1'b1;
dip_sw = 32'h0;
#2000;
reset = 1'b0;
end
always #10 clk=~clk;
//产生按键信号
initial begin
touch_btn = 4'h0;
dip_sw = 32'h0000_abcd;
#3000000;
#100000
touch_btn = 4'b0001;
#50
touch_btn = 4'b0000;
#100000
touch_btn = 4'b0010;
#50
touch_btn = 4'b0000;
#100000
touch_btn = 4'b0100;
#50
touch_btn = 4'b0000;
#100000
touch_btn = 4'b1000;
#50
touch_btn = 4'b0000;
end
soc_top #(.SIMULATION(1'b1)) u_soc_top (
.clk ( clk ),
.reset ( reset ),
.touch_btn ( touch_btn ),
.dip_sw ( dip_sw ),
.video_red ( video_red ),
.video_green ( video_green ),
.video_blue ( video_blue ),
.video_hsync ( video_hsync ),
.video_vsync ( video_vsync ),
.video_clk ( video_clk ),
.video_de ( video_de ),
.leds ( leds ),
.dpy0 ( dpy0 ),
.dpy1 ( dpy1 ),
.base_ram_addr ( base_ram_addr ),
.base_ram_be_n ( base_ram_be_n ),
.base_ram_ce_n ( base_ram_ce_n ),
.base_ram_oe_n ( base_ram_oe_n ),
.base_ram_we_n ( base_ram_we_n ),
.ext_ram_addr ( ext_ram_addr ),
.ext_ram_be_n ( ext_ram_be_n ),
.ext_ram_ce_n ( ext_ram_ce_n ),
.ext_ram_oe_n ( ext_ram_oe_n ),
.ext_ram_we_n ( ext_ram_we_n ),
.base_ram_data ( base_ram_data ),
.ext_ram_data ( ext_ram_data ),
.UART_RX ( UART_RX ),
.UART_TX ( UART_TX )
);
sram_sp #(
.AW ( 18 ),
.Init_File(`SRAM_Init_File))
base_sram_sp (
.ram_addr ( base_ram_addr ),
.ram_be_n ( base_ram_be_n ),
.ram_ce_n ( base_ram_ce_n ),
.ram_oe_n ( base_ram_oe_n ),
.ram_we_n ( base_ram_we_n ),
.ram_data ( base_ram_data )
);
sram_sp #(
.AW ( 18 ),
.Init_File(`SRAM_Init_File))
ext_sram_sp (
.ram_addr ( ext_ram_addr ),
.ram_be_n ( ext_ram_be_n ),
.ram_ce_n ( ext_ram_ce_n ),
.ram_oe_n ( ext_ram_oe_n ),
.ram_we_n ( ext_ram_we_n ),
.ram_data ( ext_ram_data )
);
//模拟串口打印
wire uart_display;
wire [7:0] uart_data;
wire uart_wen;
assign uart_wen = (`UART_PSEL == 1'b1) && (`UART_PENBLE == 1'b1) && (`UART_PWRITE == 1'b1);
assign uart_display = (uart_wen == 1'b1) && (`UART_WADDR == 8'h0);
assign uart_data = `UART_WDATA;
always @(posedge clk)
begin
if(uart_display)
begin
if(uart_data !=8'hff) begin
$write("%c",uart_data);
end
end
end
//仿真结束
wire [31:0] debug_wb_pc;
assign debug_wb_pc = u_soc_top.debug_wb_pc;
wire test_end = debug_wb_pc==`END_PC;
always @(posedge u_soc_top.cpu_clk)
begin
if (!u_soc_top.cpu_resetn) begin
end
else if(test_end) begin
$display("==============================================================");
$display("Test end!");
$finish;
end
end
//FFT测试结果输出
`ifdef FFT_OUTPUT_TXT
integer fft_output_re;
integer fft_output_im;
initial begin
fft_output_re = $fopen("../../../../../../python/fft512_output_re.txt", "w");
fft_output_im = $fopen("../../../../../../python/fft512_output_im.txt", "w");
forever begin
@(posedge u_soc_top.u_axi_fft_top.u_axi_fft_wrap.aclk);
if(u_soc_top.u_axi_fft_top.u_axi_fft_wrap.valid_out) begin
$fwrite(fft_output_re, "%04h\n", u_soc_top.u_axi_fft_top.u_axi_fft_wrap.y_re);
$fwrite(fft_output_im, "%04h\n", u_soc_top.u_axi_fft_top.u_axi_fft_wrap.y_im);
end
end
end
`endif
endmodule