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[/] [8051/] [trunk/] [bench/] [verilog/] [oc8051_tb.v] - Rev 167
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////////////////////////////////////////////////////////////////////// //// //// //// 8051 top level test bench //// //// //// //// This file is part of the 8051 cores project //// //// http://www.opencores.org/cores/8051/ //// //// //// //// Description //// //// top level test bench. //// //// //// //// To Do: //// //// nothing //// //// //// //// Author(s): //// //// - Simon Teran, simont@opencores.org //// //// //// ////////////////////////////////////////////////////////////////////// //// //// //// 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 //// //// //// ////////////////////////////////////////////////////////////////////// // // CVS Revision History // // $Log: not supported by cvs2svn $ // Revision 1.15 2003/06/05 17:14:27 simont // Change test monitor from ports to external data memory. // // Revision 1.14 2003/06/05 12:54:38 simont // remove dumpvars. // // Revision 1.13 2003/06/05 11:13:39 simont // add FREQ paremeter. // // Revision 1.12 2003/04/16 09:55:56 simont // add support for external rom from xilinx ramb4 // // Revision 1.11 2003/04/10 12:45:06 simont // defines for pherypherals added // // Revision 1.10 2003/04/03 19:20:55 simont // Remove instruction cache and wb_interface // // Revision 1.9 2003/04/02 15:08:59 simont // rename signals // // Revision 1.8 2003/01/13 14:35:25 simont // remove wb_bus_mon // // Revision 1.7 2002/10/28 16:43:12 simont // add module oc8051_wb_iinterface // // Revision 1.6 2002/10/24 13:36:53 simont // add instruction cache and DELAY parameters for external ram, rom // // Revision 1.5 2002/10/17 19:00:50 simont // add external rom // // Revision 1.4 2002/09/30 17:33:58 simont // prepared header // // // synopsys translate_off `include "oc8051_timescale.v" // synopsys translate_on `include "oc8051_defines.v" module oc8051_tb; //parameter FREQ = 20000; // frequency in kHz parameter FREQ = 12000; // frequency in kHz parameter DELAY = 500000/FREQ; reg rst, clk; reg [7:0] p0_in, p1_in, p2_in; wire [15:0] ext_addr, iadr_o; wire write, write_xram, write_uart, txd, rxd, int_uart, int0, int1, t0, t1, bit_out, stb_o, ack_i; wire ack_xram, ack_uart, cyc_o, iack_i, istb_o, icyc_o, t2, t2ex; wire [7:0] data_in, data_out, p0_out, p1_out, p2_out, p3_out, data_out_uart, data_out_xram, p3_in; wire wbi_err_i, wbd_err_i; `ifdef OC8051_XILINX_RAMB reg [31:0] idat_i; `else wire [31:0] idat_i; `endif /// /// buffer for test vectors /// // // buffer reg [23:0] buff [0:255]; reg ea [0:1]; integer num; assign wbd_err_i = 1'b0; assign wbi_err_i = 1'b0; // // oc8051 controller // oc8051_top oc8051_top_1(.wb_rst_i(rst), .wb_clk_i(clk), .int0_i(int0), .int1_i(int1), .wbd_dat_i(data_in), .wbd_we_o(write), .wbd_dat_o(data_out), .wbd_adr_o(ext_addr), .wbd_err_i(wbd_err_i), .wbd_ack_i(ack_i), .wbd_stb_o(stb_o), .wbd_cyc_o(cyc_o), .wbi_adr_o(iadr_o), .wbi_stb_o(istb_o), .wbi_ack_i(iack_i), .wbi_cyc_o(icyc_o), .wbi_dat_i(idat_i), .wbi_err_i(wbi_err_i), `ifdef OC8051_PORTS `ifdef OC8051_PORT0 .p0_i(p0_in), .p0_o(p0_out), `endif `ifdef OC8051_PORT1 .p1_i(p1_in), .p1_o(p1_out), `endif `ifdef OC8051_PORT2 .p2_i(p2_in), .p2_o(p2_out), `endif `ifdef OC8051_PORT3 .p3_i(p3_in), .p3_o(p3_out), `endif `endif `ifdef OC8051_UART .rxd_i(rxd), .txd_o(txd), `endif `ifdef OC8051_TC01 .t0_i(t0), .t1_i(t1), `endif `ifdef OC8051_TC2 .t2_i(t2), .t2ex_i(t2ex), `endif .ea_in(ea[0])); // // external data ram // oc8051_xram oc8051_xram1 (.clk(clk), .rst(rst), .wr(write_xram), .addr(ext_addr), .data_in(data_out), .data_out(data_out_xram), .ack(ack_xram), .stb(stb_o)); defparam oc8051_xram1.DELAY = 2; `ifdef OC8051_SERIAL // // test programs with serial interface // oc8051_serial oc8051_serial1(.clk(clk), .rst(rst), .rxd(txd), .txd(rxd)); defparam oc8051_serial1.FREQ = FREQ; //defparam oc8051_serial1.BRATE = 9.6; defparam oc8051_serial1.BRATE = 4.8; `else // // external uart // oc8051_uart_test oc8051_uart_test1(.clk(clk), .rst(rst), .addr(ext_addr[7:0]), .wr(write_uart), .wr_bit(p3_out[0]), .data_in(data_out), .data_out(data_out_uart), .bit_out(bit_out), .rxd(txd), .txd(rxd), .ow(p3_out[1]), .intr(int_uart), .stb(stb_o), .ack(ack_uart)); `endif `ifdef OC8051_XILINX_RAMB `include "oc8051_rom_values.v" // // exteranl program rom // // // rom 0 // wire [11:0] adr0, adr1; wire [15:0] dat0, dat1; assign adr0 = iadr_o[13:2] + {11'h0, iadr_o[1]}; assign adr1 = iadr_o[13:2]; rom_8kx16_top rom_8kx16_top_0 ( // WISHBONE slave .wb_clk_i(clk), .wb_rst_i(rst), .wb_dat_i(16'h0), .wb_dat_o(dat0), .wb_adr_i(adr0), .wb_sel_i(2'b11), .wb_we_i(1'b0), .wb_cyc_i(icyc_o), .wb_stb_i(istb_o), .wb_ack_o(iack_i), .wb_err_o(wbi_err_i) ); rom_8kx16_top rom_8kx16_top_1 ( // WISHBONE slave .wb_clk_i(clk), .wb_rst_i(rst), .wb_dat_i(16'h0), .wb_dat_o(dat1), .wb_adr_i(adr1), .wb_sel_i(2'b11), .wb_we_i(1'b0), .wb_cyc_i(icyc_o), .wb_stb_i(istb_o), .wb_ack_o(iack_i), .wb_err_o(wbi_err_i) ); defparam rom_8kx16_top_0.awidth = 12; defparam rom_8kx16_top_1.awidth = 12; always @(iadr_o[1:0] or dat0 or dat1) begin case (iadr_o[1:0]) 2'b00: idat_i = {8'h0, dat1[7:0], dat0}; 2'b01: idat_i = {8'h0, dat1, dat0[15:8]}; 2'b10: idat_i = {8'h0, dat0[7:0], dat1}; default: idat_i = {8'h0, dat0, dat1[15:8]}; endcase end `else oc8051_xrom oc8051_xrom1(.rst(rst), .clk(clk), .addr(iadr_o), .data(idat_i), .stb_i(istb_o), .cyc_i(icyc_o), .ack_o(iack_i)); defparam oc8051_xrom1.DELAY = 0; `endif // // // assign write_xram = p3_out[7] & write; assign write_uart = !p3_out[7] & write; assign data_in = p3_out[7] ? data_out_xram : data_out_uart; assign ack_i = p3_out[7] ? ack_xram : ack_uart; assign p3_in = {6'h0, bit_out, int_uart}; assign t0 = p3_out[5]; assign t1 = p3_out[6]; assign int0 = p3_out[3]; assign int1 = p3_out[4]; assign t2 = p3_out[5]; assign t2ex = p3_out[2]; initial begin rst= 1'b1; p0_in = 8'h00; p1_in = 8'h00; p2_in = 8'h00; #220 rst = 1'b0; #80000000 $display("time ",$time, "\n faulire: end of time\n \n"); $display(""); $finish; end initial begin clk = 0; forever #DELAY clk <= ~clk; end always @(ext_addr or write or stb_o or data_out) begin if ((ext_addr==16'h0010) & write & stb_o) begin if (data_out==8'h7f) begin $display(""); $display("time ",$time, " Passed"); $display(""); $finish; end else begin $display(""); $display("time ",$time," Error: %h", data_out); $display(""); $finish; end end end initial $readmemb("../oc8051_ea.in", ea); endmodule
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