diff options
Diffstat (limited to 'usrp2')
-rw-r--r-- | usrp2/fpga/simple_gemac/simple_gemac_tb.v | 33 | ||||
-rw-r--r-- | usrp2/fpga/simple_gemac/simple_gemac_tx.v | 37 |
2 files changed, 32 insertions, 38 deletions
diff --git a/usrp2/fpga/simple_gemac/simple_gemac_tb.v b/usrp2/fpga/simple_gemac/simple_gemac_tb.v index 6584a1a81..231a8b2ec 100644 --- a/usrp2/fpga/simple_gemac/simple_gemac_tb.v +++ b/usrp2/fpga/simple_gemac/simple_gemac_tb.v @@ -37,8 +37,7 @@ module simple_gemac_tb; task SendFlowCtrl; begin - $display("Sending Flow Control"); - $display($time); + $display("Sending Flow Control, %d", $time); @(posedge clk); pause_req <= 1; @(posedge clk); @@ -51,16 +50,14 @@ module simple_gemac_tb; input [7:0] data_start; input [31:0] data_len; begin - $display("Sending Packet Len=%d", data_len); - $display($time); + $display("Sending Packet Len=%d, %d", data_len, $time); count <= 1; tx_data <= data_start; tx_error <= 0; tx_valid <= 1; while(~tx_ack) @(posedge tx_clk); -// $display("Packet Accepted"); -// $display($time); + $display("Packet Accepted, %d", $time); while(count < data_len) begin tx_data <= tx_data + 1; @@ -75,8 +72,7 @@ module simple_gemac_tb; task SendPacketFromFile; input [31:0] data_len; begin - $display("Sending Packet From File Len=%d",data_len); - $display($time); + $display("Sending Packet From File Len=%d, %d",data_len,$time); $readmemh( "test_packet.mem",pkt_rom ); count = 0; tx_data = pkt_rom[count]; @@ -84,8 +80,7 @@ module simple_gemac_tb; tx_valid = 1; while(~tx_ack) @(posedge tx_clk); -// $display("Packet Accepted"); -// $display($time); + $display("Packet Accepted, %d",$time); count = 1; while(count < data_len) begin @@ -112,31 +107,31 @@ module simple_gemac_tb; initial begin @(negedge reset); - repeat (100) + repeat (10) @(posedge clk); SendFlowCtrl; - repeat (200) + repeat (20) @(posedge clk); SendPacket(8'hAA,10); - repeat (100) + repeat (10) @(posedge clk); SendPacketFromFile(60); - repeat (100) + repeat (10) @(posedge clk); SendPacketFromFile(61); - repeat (100) + repeat (10) @(posedge clk); SendPacketFromFile(62); - repeat (100) + repeat (10) @(posedge clk); SendPacketFromFile(63); - repeat (100) + repeat (1) @(posedge clk); SendPacketFromFile(64); - repeat (100) + repeat (10) @(posedge clk); SendPacketFromFile(59); - repeat (100) + repeat (1) @(posedge clk); SendPacketFromFile(58); #10000 $finish; diff --git a/usrp2/fpga/simple_gemac/simple_gemac_tx.v b/usrp2/fpga/simple_gemac/simple_gemac_tx.v index d164d3fed..ffc8f6e99 100644 --- a/usrp2/fpga/simple_gemac/simple_gemac_tx.v +++ b/usrp2/fpga/simple_gemac/simple_gemac_tx.v @@ -201,30 +201,11 @@ module simple_gemac_tx (tx_state==TX_PAD) | (tx_state[6]); - reg [7:0] crc_ctr; - reg calc_crc_d1; - always @(posedge tx_clk) - calc_crc_d1 <= calc_crc; - - always @(posedge tx_clk) - if(reset) - crc_ctr <= 0; - else if(calc_crc) - crc_ctr <= crc_ctr+1; - else if(calc_crc_d1) - $display("CRC COUNT = %d",crc_ctr); - else - crc_ctr <= 0; - crc crc(.clk(tx_clk), .reset(reset), .clear(clear_crc), .data(txd_pre), .calc(calc_crc), .crc_out(crc_out)); assign tx_ack = (tx_state == TX_FIRSTBYTE); - reg tx_valid_d1; - always @(posedge tx_clk) - tx_valid_d1 <= tx_valid; - always @(posedge tx_clk) begin GMII_TX_EN <= tx_en_pre; @@ -244,3 +225,21 @@ module simple_gemac_tx end endmodule // simple_gemac_tx + +// Testing code +/* + reg [7:0] crc_ctr; + reg calc_crc_d1; + always @(posedge tx_clk) + calc_crc_d1 <= calc_crc; + + always @(posedge tx_clk) + if(reset) + crc_ctr <= 0; + else if(calc_crc) + crc_ctr <= crc_ctr+1; + else if(calc_crc_d1) + $display("CRC COUNT = %d",crc_ctr); + else + crc_ctr <= 0; +*/ |