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-rw-r--r--simple_gemac/eth_tasks_f19.v92
1 files changed, 92 insertions, 0 deletions
diff --git a/simple_gemac/eth_tasks_f19.v b/simple_gemac/eth_tasks_f19.v
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+++ b/simple_gemac/eth_tasks_f19.v
@@ -0,0 +1,92 @@
+
+
+task SendFlowCtrl;
+ input [15:0] fc_len;
+ begin
+ $display("Sending Flow Control, quanta = %d, time = %d", fc_len,$time);
+ pause_time <= fc_len;
+ @(posedge eth_clk);
+ pause_req <= 1;
+ @(posedge eth_clk);
+ pause_req <= 0;
+ $display("Sent Flow Control");
+ end
+endtask // SendFlowCtrl
+
+task SendPacket_to_fifo19;
+ input [31:0] data_start;
+ input [15:0] data_len;
+ reg [15:0] count;
+ begin
+ $display("Sending Packet Len=%d, %d", data_len, $time);
+ count <= 2;
+ tx_f19_data <= {2'b0, 1'b0, 1'b1, data_start};
+ tx_f19_src_rdy <= 1;
+ #1;
+ while(count < data_len)
+ begin
+ while(~tx_f19_dst_rdy)
+ @(posedge sys_clk);
+ @(posedge sys_clk);
+ //tx_f19_data[31:0] = tx_f19_data[31:0] + 32'h0101_0101;
+ count = count + 4;
+ //tx_f19_data[32] <= 0;
+ end
+ //tx_f19_data[33] <= 1;
+ while(~tx_f19_dst_rdy)
+ @(posedge sys_clk);
+ @(posedge sys_clk);
+ tx_f19_src_rdy <= 0;
+ end
+endtask // SendPacket_to_fifo19
+
+/*
+task Waiter;
+ input [31:0] wait_length;
+ begin
+ tx_ll_src_rdy2 <= 0;
+ repeat(wait_length)
+ @(posedge clk);
+ tx_ll_src_rdy2 <= 1;
+ end
+endtask // Waiter
+*/
+
+/*
+task SendPacketFromFile_f19;
+ input [31:0] data_len;
+ input [31:0] wait_length;
+ input [31:0] wait_time;
+
+ integer count;
+ begin
+ $display("Sending Packet From File to LL8 Len=%d, %d",data_len,$time);
+ $readmemh("test_packet.mem",pkt_rom );
+
+ while(~tx_f19_dst_rdy)
+ @(posedge clk);
+ tx_f19_data <= pkt_rom[0];
+ tx_f19_src_rdy <= 1;
+ tx_f19_eof <= 0;
+ @(posedge clk);
+
+ for(i=1;i<data_len-1;i=i+1)
+ begin
+ while(~tx_ll_dst_rdy2)
+ @(posedge clk);
+ tx_ll_data2 <= pkt_rom[i];
+ tx_ll_sof2 <= 0;
+ @(posedge clk);
+// if(i==wait_time)
+// Waiter(wait_length);
+ end
+
+ while(~tx_ll_dst_rdy2)
+ @(posedge clk);
+ tx_ll_eof2 <= 1;
+ tx_ll_data2 <= pkt_rom[data_len-1];
+ @(posedge clk);
+ tx_ll_src_rdy2 <= 0;
+ end
+endtask
+*/