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[/] [sgmii/] [trunk/] [sim/] [mMACEmulator.sv] - Blame information for rev 26

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/*
Developed by Jeff Lieu (lieumychuong@gmail.com)
 
File            :
Description     :
 
Remarks         :
 
Revision        :
        Date    Author  Description
 
*/
`timescale 1ns/10ps
 
module mMACEmulator(
        input i_RxClk,
        input i_TxClk,
        input [07:00] i8_RxD,
        input i_RxDV,
        input i_RxER,
        output reg [07:00] o8_TxD,
        output reg o_TxEN,
        output reg o_TxER,
 
        input [1:0] i2_Speed,
        input i_Reset_L);
 
        reg r_Active;
        integer Octet;
        integer ExtCycles;
        integer ErrCycles;
        integer RxPktCnt;
        wire w_Active;
        wire w_Sop;
        wire w_Eop;
        reg [07:00] ReceivedPkt[0:10000];
        reg [07:00] r8_LstRxD;
        integer RxPtr;
        reg ReceiveEnable;
 
        assign w_Sop = ~r_Active & w_Active;
        assign w_Eop = r_Active & (~w_Active);
 
 
                initial
                        begin
                        RxPktCnt=0;
                        o_TxEN=0;
                        o_TxER=0;
                        o8_TxD=0;
                        ReceiveEnable <= 1'b0;
                        end
 
        assign w_Active=i_RxDV|i_RxER;
        always@(posedge i_RxClk)
                begin
                        r_Active <= w_Active;
                        r8_LstRxD       <= i8_RxD;
                end
 
 
 
 
        task automatic tsk_ReceivePkt;
                output [07:00] ov_ReceivedPkt[0:10000];
                output integer FrameSize;
                output integer ExtCycles;
                output integer ErrCycles;
 
                integer Octet;
        begin
                ExtCycles = 0;
                ErrCycles = 0;
                for(Octet=0;Octet<10000;Octet=Octet+1)
                        ov_ReceivedPkt[Octet]=0;
                Octet=0;
                $display("(%d)MAC       : Start Rx Task",$time);
                if(i2_Speed==2'b10)
                begin
                        while(w_Active!=1'b1||r_Active!=1'b0)
                                @(posedge i_RxClk);
                        while(w_Active!=1'b1||i8_RxD!=8'hD5||r8_LstRxD!=8'h55)
                                @(posedge i_RxClk);
 
                        @(posedge i_RxClk);
                        $display("MAC: Start Receiving");
                        while(r_Active!=1'b1||w_Active!=1'b0)
                        begin
                                if(i_RxDV==1'b1 && i_RxER==1'b0)
                                        begin
                                        ov_ReceivedPkt[Octet]=i8_RxD;
                                        Octet=Octet+1;
                                        end
                                else if(i_RxDV==1'b0 && i_RxER==1'b1)
                                        begin
                                                case(i8_RxD)
                                                8'h0F: begin
                                                                ExtCycles = ExtCycles+1;
                                                           end
                                                8'h1F: begin
                                                                $display("Error Propagation");
                                                                ExtCycles = ExtCycles+1;
                                                                ErrCycles = ErrCycles+1;
                                                                end
                                                default: $display("Unknown %x",i8_RxD);
                                                endcase
                                        end
                                else if(i_RxDV==1'b1 && i_RxER==1'b1)
                                        begin
                                                ErrCycles = ErrCycles+1;
                                        end
                                @(posedge i_RxClk);
                        end
                end
                else
                begin
                        while(w_Active!=1'b1||r_Active!=1'b0)
                                @(posedge i_RxClk);
                        while(w_Active!=1'b1||i8_RxD[3:0]!=4'hD||r8_LstRxD[3:0]!=4'h5)
                                @(posedge i_RxClk);
                        @(posedge i_RxClk);
                        $display("MAC: Start Receiving");
                        while(r_Active!=1'b1||w_Active!=1'b0)
                        begin
                                if(i_RxDV==1'b1 && i_RxER==1'b0)
                                        begin
                                        ov_ReceivedPkt[Octet][3:0]=i8_RxD[3:0];
                                        @(posedge i_RxClk);
                                        ov_ReceivedPkt[Octet][7:4]=i8_RxD[3:0];
                                        Octet=Octet+1;
                                        end
                                else if(i_RxDV==1'b1 && i_RxER==1'b1)
                                        begin
                                                ErrCycles = ErrCycles+1;
                                        end
                                @(posedge i_RxClk);
                        end
 
 
                end
                FrameSize=Octet;
                $display("MAC: Packet Received with %d bytes",FrameSize);
        end
        endtask
 
        task automatic tsk_TransmitPkt;
                ref reg [7:0] iv_TransmitPkt[0:10000];
                input integer PktSize;
                input integer PktIFG;
 
                integer Octet;
        begin
                if(i2_Speed==2'b10)
                begin
                        for(Octet=0;Octet<8;Octet++)
                                begin
                                @(posedge i_TxClk);#1;
                                o_TxEN = 1'b1;
                                o_TxER = 1'b0;
                                o8_TxD = (Octet==7)?8'hD5:8'h55;
                                end
                        for(Octet=0;Octet
                                        begin
                                        @(posedge i_TxClk);#1;
                                        o_TxEN = 1'b1;
                                        o_TxER = 1'b0;
                                        o8_TxD = iv_TransmitPkt[Octet];
                                        end
                                        @(posedge i_TxClk);#1;
                                        o_TxEN = 1'b0;
                                //Interframe Gap
                                for(Octet=0;Octet
                                        begin @(posedge i_TxClk);#1; end
                end else
                begin
                        for(Octet=0;Octet<8;Octet++)
                                begin
                                @(posedge i_TxClk);#1;
                                o_TxEN = 1'b1;
                                o_TxER = 1'b0;
                                o8_TxD = (Octet==7)?8'h5:8'h5;
                                @(posedge i_TxClk);#1;
                                o8_TxD = (Octet==7)?8'hD:8'h5;
                                end
                        for(Octet=0;Octet
                                        begin
                                        @(posedge i_TxClk);#1;
                                        o_TxEN = 1'b1;
                                        o_TxER = 1'b0;
                                        o8_TxD = iv_TransmitPkt[Octet][3:0];
                                        @(posedge i_TxClk);#1;
                                        o8_TxD = iv_TransmitPkt[Octet][7:4];
                                        end
                                @(posedge i_TxClk);#1;
                                o_TxEN = 1'b0;
                                //Interframe Gap
                                for(Octet=0;Octet
                                        begin @(posedge i_TxClk);#1; end
                end
        end
        endtask
 
 
endmodule

Line No.	Rev	Author	Line
1	4	jefflieu	`/*`
2			`Developed by Jeff Lieu (lieumychuong@gmail.com)`
3
4			`File :`
5			`Description :`
6
7			`Remarks :`
8
9			`Revision :`
10			`Date Author Description`
11
12			`*/`
13			`timescale 1ns/10ps
14
15			`module mMACEmulator(`
16			`input i_RxClk,`
17			`input i_TxClk,`
18			`input [07:00] i8_RxD,`
19			`input i_RxDV,`
20	11	jefflieu	`input i_RxER,`
21	4	jefflieu	`output reg [07:00] o8_TxD,`
22			`output reg o_TxEN,`
23			`output reg o_TxER,`
24
25	11	jefflieu	`input [1:0] i2_Speed,`
26	4	jefflieu	`input i_Reset_L);`
27
28			`reg r_Active;`
29			`integer Octet;`
30			`integer ExtCycles;`
31			`integer ErrCycles;`
32			`integer RxPktCnt;`
33			`wire w_Active;`
34			`wire w_Sop;`
35			`wire w_Eop;`
36			`reg [07:00] ReceivedPkt[0:10000];`
37	6	jefflieu	`reg [07:00] r8_LstRxD;`
38	4	jefflieu	`integer RxPtr;`
39			`reg ReceiveEnable;`
40
41			`assign w_Sop = ~r_Active & w_Active;`
42			`assign w_Eop = r_Active & (~w_Active);`
43
44
45			`initial`
46			`begin`
47			`RxPktCnt=0;`
48			`o_TxEN=0;`
49			`o_TxER=0;`
50			`o8_TxD=0;`
51			`ReceiveEnable <= 1'b0;`
52			`end`
53
54			`assign w_Active=i_RxDV\|i_RxER;`
55			`always@(posedge i_RxClk)`
56			`begin`
57	6	jefflieu	`r_Active <= w_Active;`
58			`r8_LstRxD <= i8_RxD;`
59	4	jefflieu	`end`
60
61
62
63
64			`task automatic tsk_ReceivePkt;`
65			`output [07:00] ov_ReceivedPkt[0:10000];`
66			`output integer FrameSize;`
67			`output integer ExtCycles;`
68			`output integer ErrCycles;`
69
70			`integer Octet;`
71			`begin`
72			`ExtCycles = 0;`
73			`ErrCycles = 0;`
74			`for(Octet=0;Octet<10000;Octet=Octet+1)`
75			`ov_ReceivedPkt[Octet]=0;`
76			`Octet=0;`
77	11	jefflieu	`$display("(%d)MAC : Start Rx Task",$time);`
78			`if(i2_Speed==2'b10)`
79			`begin`
80			`while(w_Active!=1'b1\|\|r_Active!=1'b0)`
81			`@(posedge i_RxClk);`
82			`while(w_Active!=1'b1\|\|i8_RxD!=8'hD5\|\|r8_LstRxD!=8'h55)`
83			`@(posedge i_RxClk);`
84
85	4	jefflieu	`@(posedge i_RxClk);`
86	11	jefflieu	`$display("MAC: Start Receiving");`
87			`while(r_Active!=1'b1\|\|w_Active!=1'b0)`
88			`begin`
89			`if(i_RxDV==1'b1 && i_RxER==1'b0)`
90			`begin`
91			`ov_ReceivedPkt[Octet]=i8_RxD;`
92			`Octet=Octet+1;`
93			`end`
94			`else if(i_RxDV==1'b0 && i_RxER==1'b1)`
95			`begin`
96			`case(i8_RxD)`
97			`8'h0F: begin`
98			`ExtCycles = ExtCycles+1;`
99			`end`
100			`8'h1F: begin`
101			`$display("Error Propagation");`
102			`ExtCycles = ExtCycles+1;`
103			`ErrCycles = ErrCycles+1;`
104			`end`
105			`default: $display("Unknown %x",i8_RxD);`
106			`endcase`
107			`end`
108			`else if(i_RxDV==1'b1 && i_RxER==1'b1)`
109			`begin`
110			`ErrCycles = ErrCycles+1;`
111			`end`
112			`@(posedge i_RxClk);`
113			`end`
114			`end`
115			`else`
116			`begin`
117			`while(w_Active!=1'b1\|\|r_Active!=1'b0)`
118			`@(posedge i_RxClk);`
119			`while(w_Active!=1'b1\|\|i8_RxD[3:0]!=4'hD\|\|r8_LstRxD[3:0]!=4'h5)`
120			`@(posedge i_RxClk);`
121	6	jefflieu	`@(posedge i_RxClk);`
122	11	jefflieu	`$display("MAC: Start Receiving");`
123			`while(r_Active!=1'b1\|\|w_Active!=1'b0)`
124			`begin`
125			`if(i_RxDV==1'b1 && i_RxER==1'b0)`
126			`begin`
127			`ov_ReceivedPkt[Octet][3:0]=i8_RxD[3:0];`
128			`@(posedge i_RxClk);`
129			`ov_ReceivedPkt[Octet][7:4]=i8_RxD[3:0];`
130			`Octet=Octet+1;`
131			`end`
132			`else if(i_RxDV==1'b1 && i_RxER==1'b1)`
133			`begin`
134			`ErrCycles = ErrCycles+1;`
135			`end`
136			`@(posedge i_RxClk);`
137			`end`
138	6	jefflieu
139	11	jefflieu
140	4	jefflieu	`end`
141			`FrameSize=Octet;`
142			`$display("MAC: Packet Received with %d bytes",FrameSize);`
143			`end`
144			`endtask`
145
146			`task automatic tsk_TransmitPkt;`
147			`ref reg [7:0] iv_TransmitPkt[0:10000];`
148			`input integer PktSize;`
149			`input integer PktIFG;`
150
151			`integer Octet;`
152	11	jefflieu	`begin`
153			`if(i2_Speed==2'b10)`
154			`begin`
155			`for(Octet=0;Octet<8;Octet++)`
156	4	jefflieu	`begin`
157			`@(posedge i_TxClk);#1;`
158			`o_TxEN = 1'b1;`
159			`o_TxER = 1'b0;`
160	11	jefflieu	`o8_TxD = (Octet==7)?8'hD5:8'h55;`
161	4	jefflieu	`end`
162	11	jefflieu	`for(Octet=0;Octet`
163			`begin`
164			`@(posedge i_TxClk);#1;`
165			`o_TxEN = 1'b1;`
166			`o_TxER = 1'b0;`
167			`o8_TxD = iv_TransmitPkt[Octet];`
168			`end`
169			`@(posedge i_TxClk);#1;`
170			`o_TxEN = 1'b0;`
171			`//Interframe Gap`
172			`for(Octet=0;Octet`
173			`begin @(posedge i_TxClk);#1; end`
174			`end else`
175			`begin`
176			`for(Octet=0;Octet<8;Octet++)`
177			`begin`
178	4	jefflieu	`@(posedge i_TxClk);#1;`
179	11	jefflieu	`o_TxEN = 1'b1;`
180			`o_TxER = 1'b0;`
181			`o8_TxD = (Octet==7)?8'h5:8'h5;`
182			`@(posedge i_TxClk);#1;`
183			`o8_TxD = (Octet==7)?8'hD:8'h5;`
184			`end`
185			`for(Octet=0;Octet`
186			`begin`
187			`@(posedge i_TxClk);#1;`
188			`o_TxEN = 1'b1;`
189			`o_TxER = 1'b0;`
190			`o8_TxD = iv_TransmitPkt[Octet][3:0];`
191			`@(posedge i_TxClk);#1;`
192			`o8_TxD = iv_TransmitPkt[Octet][7:4];`
193			`end`
194			`@(posedge i_TxClk);#1;`
195	4	jefflieu	`o_TxEN = 1'b0;`
196	11	jefflieu	`//Interframe Gap`
197			`for(Octet=0;Octet`
198			`begin @(posedge i_TxClk);#1; end`
199			`end`
200	4	jefflieu	`end`
201			`endtask`
202
203
204			`endmodule`

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[/] [sgmii/] [trunk/] [sim/] [mMACEmulator.sv] - Blame information for rev 26