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[/] [openrisc/] [trunk/] [orpsocv2/] [bench/] [verilog/] [orpsoc_testbench.v] - Rev 305
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////////////////////////////////////////////////////////////////////// //// //// //// ORPSoC Testbench //// //// //// //// Description //// //// ORPSoC Testbench file //// //// //// //// To Do: //// //// //// //// //// //// Author(s): //// //// - jb, jb@orsoc.se //// //// //// //// //// ////////////////////////////////////////////////////////////////////// //// //// //// Copyright (C) 2009 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 //// //// //// ////////////////////////////////////////////////////////////////////// `include "timescale.v" `include "orpsoc_testbench_defines.v" module orpsoc_testbench(); reg clk; reg rst; // Setup global clock. Period defined in orpsoc_testbench_defines.v initial begin clk <= 0; rst <= 1; end always begin #((`CLOCK_PERIOD)/2) clk <= ~clk; end // Assert rst and then bring it low again initial begin repeat (2) @(negedge clk); rst <= 0; repeat (16) @(negedge clk); rst <= 1; end // Wires for the dut wire spi_sd_sclk_o; wire spi_sd_ss_o; wire spi_sd_miso_i; wire spi_sd_mosi_o; `ifdef USE_SDRAM wire [15:0] mem_dat_io; wire [12:0] mem_adr_o; wire [1:0] mem_dqm_o; wire [1:0] mem_ba_o; wire mem_cs_o; wire mem_ras_o; wire mem_cas_o; wire mem_we_o; wire mem_cke_o; wire spi_flash_sclk_o; wire spi_flash_ss_o; wire spi_flash_miso_i; wire spi_flash_mosi_o; wire spi_flash_w_n_o; wire spi_flash_hold_n_o; `endif // `ifdef USE_SDRAM `ifdef USE_ETHERNET wire [1:1] eth_sync_o; wire [1:1] eth_tx_o; wire [1:1] eth_rx_i; wire eth_clk_i; wire [1:1] eth_md_io; wire [1:1] eth_mdc_o; `endif wire spi1_mosi_o; wire spi1_miso_i; wire spi1_ss_o; wire spi1_sclk_o; wire [8-1:0] gpio_a_io; wire uart0_srx_i; wire uart0_stx_o; wire dbg_tdi_i; wire dbg_tck_i; wire dbg_tms_i; wire dbg_tdo_o; wire rst_i; wire rst_o; wire clk_i; assign clk_i = clk; assign rst_i = rst; // Tie off some inputs assign spi1_miso_i = 0; assign uart0_srx_i = 1; orpsoc_top dut ( // Outputs .spi_sd_sclk_pad_o (spi_sd_sclk_o), .spi_sd_ss_pad_o (spi_sd_ss_o), .spi_sd_mosi_pad_o (spi_sd_mosi_o), .spi1_mosi_pad_o (spi1_mosi_o), .spi1_ss_pad_o (spi1_ss_o), .spi1_sclk_pad_o (spi1_sclk_o), .uart0_stx_pad_o (uart0_stx_o), .dbg_tdo_pad_o (dbg_tdo_o), .rst_pad_o (rst_o), .gpio_a_pad_io (gpio_a_io[8-1:0]), // Inputs .spi_sd_miso_pad_i (spi_sd_miso_i), .spi1_miso_pad_i (spi1_miso_i), .uart0_srx_pad_i (uart0_srx_i), .dbg_tdi_pad_i (dbg_tdi_i), .dbg_tck_pad_i (dbg_tck_i), .dbg_tms_pad_i (dbg_tms_i), `ifdef USE_ETHERNET // Ethernet ports .eth_md_pad_io (eth_md_io[1:1]), .eth_mdc_pad_o (eth_mdc_o[1:1]), .eth_sync_pad_o (eth_sync_o[1:1]), .eth_tx_pad_o (eth_tx_o[1:1]), .eth_rx_pad_i (eth_rx_i[1:1]), .eth_clk_pad_i (eth_clk_i), `endif // `ifdef USE_ETHERNET // SDRAM and flash memory ports `ifdef USE_SDRAM .mem_dat_pad_io (mem_dat_io[15:0]), .mem_adr_pad_o (mem_adr_o[12:0]), .mem_dqm_pad_o (mem_dqm_o[1:0]), .mem_ba_pad_o (mem_ba_o[1:0]), .mem_cs_pad_o (mem_cs_o), .mem_ras_pad_o (mem_ras_o), .mem_cas_pad_o (mem_cas_o), .mem_we_pad_o (mem_we_o), .mem_cke_pad_o (mem_cke_o), .spi_flash_sclk_pad_o (spi_flash_sclk_o), .spi_flash_ss_pad_o (spi_flash_ss_o), .spi_flash_mosi_pad_o (spi_flash_mosi_o), .spi_flash_w_n_pad_o (spi_flash_w_n_o), .spi_flash_hold_n_pad_o (spi_flash_hold_n_o), .spi_flash_miso_pad_i (spi_flash_miso_i), `endif .rst_pad_i (rst_i), .clk_pad_i (clk_i)); `ifdef VPI_DEBUG_ENABLE // Debugging interface vpi_debug_module vpi_dbg( .tms(dbg_tms_i), .tck(dbg_tck_i), .tdi(dbg_tdi_i), .tdo(dbg_tdo_o)); `else // If no VPI debugging, tie off JTAG inputs assign dbg_tdi_i = 1; assign dbg_tck_i = 0; assign dbg_tms_i = 1; `endif // External memories, if enabled `ifdef USE_SDRAM // SPI Flash AT26DFxxx spi_flash ( // Outputs .SO (spi_flash_miso_i), // Inputs .CSB (spi_flash_ss_o), .SCK (spi_flash_sclk_o), .SI (spi_flash_mosi_o), .WPB (spi_flash_w_n_o) //.HOLDB (spi_flash_hold_n_o) ); // SDRAM mt48lc16m16a2 sdram ( // Inouts .Dq (mem_dat_io), // Inputs .Addr (mem_adr_o), .Ba (mem_ba_o), .Clk (clk_i), .Cke (mem_cke_o), .Cs_n (mem_cs_o), .Ras_n (mem_ras_o), .Cas_n (mem_cas_o), .We_n (mem_we_o), .Dqm (mem_dqm_o)); `endif // !`ifdef USE_SDRAM `ifdef USE_ETHERNET reg eth_clk; initial eth_clk <= 0; always #(8/2) eth_clk <= ~eth_clk; // 125 Mhz clock assign eth_clk_i = eth_clk; wire [3:0] ethphy_mii_tx_d; wire ethphy_mii_tx_en; wire ethphy_mii_tx_err; wire mcoll_o; wire mcrs_o; wire md_io; wire mrx_clk_o; wire [3:0] mrxd_o; wire mrxdv_o; wire mrxerr_o; wire mtx_clk_o; wire smii_rx; wire fast_ethernet, duplex, link; /* Converts SMII back to MII */ smii_phy smii_phyend ( // Outputs .smii_rx (eth_rx_i[1:1]), /* SMII RX */ .ethphy_mii_tx_d (ethphy_mii_tx_d[3:0]), /* MII TX */ .ethphy_mii_tx_en (ethphy_mii_tx_en), /* MII TX */ .ethphy_mii_tx_err (ethphy_mii_tx_err), /* MII TX */ // Inputs .smii_tx (eth_tx_o[1:1]), /* SMII TX */ .smii_sync (eth_sync_o[1:1]), /* SMII SYNC */ .ethphy_mii_tx_clk (mtx_clk_o), /* MII TX */ .ethphy_mii_rx_d (mrxd_o[3:0]), /* MII RX */ .ethphy_mii_rx_dv (mrxdv_o), /* MII RX */ .ethphy_mii_rx_err (mrxerr_o), /* MII RX */ .ethphy_mii_rx_clk (mrx_clk_o), /* MII RX */ .ethphy_mii_mcoll (), .ethphy_mii_crs (mcrs_o), .fast_ethernet (fast_ethernet), .duplex (duplex), .link (link), .clk (eth_clk_i), .rst_n (rst_i)); `ifdef ENABLE_ETH_STIM /* Generates an RX packet */ `include "eth_stim.v" `endif eth_phy eth_phy0 ( // Outputs .mtx_clk_o (mtx_clk_o), .mrx_clk_o (mrx_clk_o), .mrxd_o (mrxd_o[3:0]), .mrxdv_o (mrxdv_o), .mrxerr_o (mrxerr_o), .mcoll_o (mcoll_o), .mcrs_o (mcrs_o), // Sideband outputs for smii converter --jb .link_o (link), .speed_o (fast_ethernet), .duplex_o (duplex), // Inouts .md_io (eth_md_io[1:1]), // Inputs .m_rst_n_i (rst_i), .mtxd_i (ethphy_mii_tx_d[3:0]), .mtxen_i (ethphy_mii_tx_en), .mtxerr_i (ethphy_mii_tx_err), .mdc_i (eth_mdc_o[1:1])); `endif // `ifdef USE_ETHERNET initial begin $display("\nStarting RTL simulation of %s test\n", `TEST_NAME_STRING); `ifdef USE_SDRAM $display("Using SDRAM - loading application from SPI flash memory\n"); `endif `ifdef VCD $display("VCD in %s\n", {`TEST_RESULTS_DIR,`TEST_NAME_STRING,".vcd"}); $dumpfile({`TEST_RESULTS_DIR,`TEST_NAME_STRING,".vcd"}); $dumpvars(0); `endif end // Instantiate the monitor or1200_monitor monitor(); // If we're using UART for printf output, include the // UART decoder `ifdef UART_PRINTF // Define the UART's txt line for it to listen to `define UART_TX_LINE uart0_stx_o `define UART_BAUDRATE 115200 `include "uart_decoder.v" `endif endmodule // orpsoc_testbench // Local Variables: // verilog-library-files:("../../rtl/verilog/orpsoc_top.v") // verilog-library-directories:("." "../../rtl/verilog") // End:
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