1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
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_fifo36;
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_f36_data <= {2'b0, 1'b0, 1'b1, data_start};
tx_f36_src_rdy <= 1;
#1;
while(count < data_len)
begin
while(~tx_f36_dst_rdy)
@(posedge sys_clk);
@(posedge sys_clk);
tx_f36_data[31:0] = tx_f36_data[31:0] + 32'h0101_0101;
count = count + 4;
tx_f36_data[32] <= 0;
end
tx_f36_data[33] <= 1;
while(~tx_f36_dst_rdy)
@(posedge sys_clk);
@(posedge sys_clk);
tx_f36_src_rdy <= 0;
end
endtask // SendPacket_to_fifo36
/*
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_f36;
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_f36_dst_rdy)
@(posedge clk);
tx_f36_data <= pkt_rom[0];
tx_f36_src_rdy <= 1;
tx_f36_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
*/
|
