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[/] [sdr_ctrl/] [trunk/] [verif/] [tb/] [tb_top.sv] - Diff between revs 45 and 46

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Rev 45 Rev 46
Line 252... Line 252...
  #1000;
  #1000;
  wait(u_dut.sdr_init_done == 1);
  wait(u_dut.sdr_init_done == 1);
 
 
  #1000;
  #1000;
 
 
 
  $display("-------------------------------------- ");
 
  $display(" Case-1: Single Write/Read Case        ");
 
  $display("-------------------------------------- ");
 
 
  burst_write(32'h4_0000,8'h4);
  burst_write(32'h4_0000,8'h4);
 #1000;
 #1000;
  burst_read();
  burst_read();
 
 
  // Repeat one more time to analysis the
  // Repeat one more time to analysis the
  // SDRAM state change for same col/row address
  // SDRAM state change for same col/row address
 
  $display("-------------------------------------- ");
 
  $display(" Case-2: Repeat same transfer once again ");
 
  $display("----------------------------------------");
  burst_write(32'h4_0000,8'h4);
  burst_write(32'h4_0000,8'h4);
 #1000;
  burst_read();
 #1000;
 
  burst_write(32'h0040_0000,8'h5);
  burst_write(32'h0040_0000,8'h5);
 
  burst_read();
 
 
 #1000;
  $display("----------------------------------------");
 
  $display(" Case-3 Create a Page Cross Over        ");
 
  $display("----------------------------------------");
 
  burst_write(32'h4_0FFC,8'h8);
 
  burst_write(32'h0040_0FF8,8'hF);
 
  burst_read();
  burst_read();
  burst_read();
 
 
  // 4 Write & 4 Read
  $display("----------------------------------------");
 
  $display(" Case:4 4 Write & 4 Read                ");
 
  $display("----------------------------------------");
  burst_write(32'h4_0000,8'h4);
  burst_write(32'h4_0000,8'h4);
  burst_write(32'h5_0000,8'h5);
  burst_write(32'h5_0000,8'h5);
  burst_write(32'h6_0000,8'h6);
  burst_write(32'h6_0000,8'h6);
  burst_write(32'h7_0000,8'h7);
  burst_write(32'h7_0000,8'h7);
  burst_read();
  burst_read();
  burst_read();
  burst_read();
  burst_read();
  burst_read();
  burst_read();
  burst_read();
 
 
 
  $display("---------------------------------------");
 
  $display(" Case:5 16 Write & 16 Read With Different Bank and Row ");
 
  $display("---------------------------------------");
 
  //----------------------------------------
 
  // Address Decodeing:
 
  //  with cfg_col bit configured as: 00
 
  //    <12 Bit Row> <2 Bit Bank> <8 Bit Column> <2'b00>
 
  //
 
  burst_write({12'h000,2'b00,8'h00,2'b00},8'h4);   // Row: 0 Bank : 0
 
  burst_write({12'h000,2'b01,8'h00,2'b00},8'h5);   // Row: 0 Bank : 1
 
  burst_write({12'h000,2'b10,8'h00,2'b00},8'h6);   // Row: 0 Bank : 2
 
  burst_write({12'h000,2'b11,8'h00,2'b00},8'h7);   // Row: 0 Bank : 3
 
  burst_write({12'h001,2'b00,8'h00,2'b00},8'h4);   // Row: 1 Bank : 0
 
  burst_write({12'h001,2'b01,8'h00,2'b00},8'h5);   // Row: 1 Bank : 1
 
  burst_write({12'h001,2'b10,8'h00,2'b00},8'h6);   // Row: 1 Bank : 2
 
  burst_write({12'h001,2'b11,8'h00,2'b00},8'h7);   // Row: 1 Bank : 3
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
 
 
  burst_write({12'h002,2'b00,8'h00,2'b00},8'h4);   // Row: 2 Bank : 0
 
  burst_write({12'h002,2'b01,8'h00,2'b00},8'h5);   // Row: 2 Bank : 1
 
  burst_write({12'h002,2'b10,8'h00,2'b00},8'h6);   // Row: 2 Bank : 2
 
  burst_write({12'h002,2'b11,8'h00,2'b00},8'h7);   // Row: 2 Bank : 3
 
  burst_write({12'h003,2'b00,8'h00,2'b00},8'h4);   // Row: 3 Bank : 0
 
  burst_write({12'h003,2'b01,8'h00,2'b00},8'h5);   // Row: 3 Bank : 1
 
  burst_write({12'h003,2'b10,8'h00,2'b00},8'h6);   // Row: 3 Bank : 2
 
  burst_write({12'h003,2'b11,8'h00,2'b00},8'h7);   // Row: 3 Bank : 3
 
 
  // 2 write and 2 read random
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
  burst_read();
 
 
 
  $display("---------------------------------------------------");
 
  $display(" Case: 6 Random 2 write and 2 read random");
 
  $display("---------------------------------------------------");
  for(k=0; k < 20; k++) begin
  for(k=0; k < 20; k++) begin
     StartAddr = $random & 32'h003FFFFF;
     StartAddr = $random & 32'h003FFFFF;
     burst_write(StartAddr,($random & 8'h3f)+1);
     burst_write(StartAddr,($random & 8'h3f)+1);
 #100;
 #100;
 
 

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