無償ツールで実践する「ハード・ソフト協調検証」(6) ―― 協調シミュレーションを実行する

dpi_main();
　=> C言語のdpi_main関数(test_32，test_16，test_8)
#100; (100nsウエイト)
$finish(2);

int test_8( void ){
    unsigned int addr;
    unsigned char data, exp;

    addr = 0x00000053;
    data = 0x5a;   
    bfm_write8( addr, data );
    bfm_nop(10);   
    bfm_read8 ( addr, &exp );
   
    if( data != exp ){
        printf("compare error : 0x%x != 0x%x\n", data, exp );
        return 1;
    }
    return 0;
}

timeunit 1ns;
timeprecision 1ns;

`define BFM test_bench.DUT.the_mm_master_bfm_0.mm_master_bfm_0

........

endmodule : tb_prog

module avalon_cpu;

  timeunit      1ns;
  timeprecision 1ns;

`define BFM cpu

  ........

endmodule : avalon_cpu

module avalon_cpu (

        input  wire        clk,
        input  wire        reset,
        output wire [31:0] avm_address,
        output wire [2:0]  avm_burstcount,
        input  wire [31:0] avm_readdata,
        output wire [31:0] avm_writedata,
        input  wire        avm_waitrequest,
        output wire        avm_write,
        output wire        avm_read,
        output wire [3:0]  avm_byteenable,
        input  wire        avm_readdatavalid        

        );

        altera_avalon_mm_master_bfm #(

  .AV_ADDRESS_W             (32),
  .AV_SYMBOL_W              (8),
  .AV_NUMSYMBOLS            (4),
                .AV_BURSTCOUNT_W          (3),
                .USE_READ                 (1),
                .USE_WRITE                (1),
                .USE_ADDRESS              (1),
  .USE_BYTE_ENABLE          (1),
  .USE_BURSTCOUNT           (1),
  .USE_READ_DATA            (1),
  .USE_READ_DATA_VALID      (1),
  .USE_WRITE_DATA           (1),
  .USE_BEGIN_TRANSFER       (0),
         .USE_BEGIN_BURST_TRANSFER (0),
  .USE_WAIT_REQUEST         (1),
         .AV_BURST_LINEWRAP        (1),
  .AV_BURST_BNDR_ONLY       (1),
  .AV_MAX_PENDING_READS     (1),
         .AV_FIX_READ_LATENCY      (1)

            )
            cpu (
  .clk                    (clk),
                .reset                  (reset),
                .address                (avm_address),
  .avm_burstcount         (avm_burstcount),
  .avm_readdata           (avm_readdata),
  .avm_writedata          (avm_writedata),
  .avm_waitrequest        (avm_waitrequest),
  .avm_write              (avm_write),
  .avm_read               (avm_read),
  .avm_byteenable         (avm_byteenable),
  .avm_readdatavalid      (avm_readdatavalid),
  .avm_begintransfer      (),
  .avm_beginbursttransfer ()
 );

`define BFM cpu

endmodule : avalon_cpu