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/*
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/*
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Author: Sebastien Riou (acapola)
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Author: Sebastien Riou (acapola)
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Creation date: 22:22:43 01/10/2011
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Creation date: 22:22:43 01/10/2011
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$LastChangedDate: 2011-01-29 13:16:17 +0100 (Sat, 29 Jan 2011) $
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$LastChangedDate: 2011-01-29 17:13:49 +0100 (Sat, 29 Jan 2011) $
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$LastChangedBy: acapola $
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$LastChangedBy: acapola $
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$LastChangedRevision: 11 $
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$LastChangedRevision: 12 $
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$HeadURL: file:///svn/iso7816_3_master/iso7816_3_master/trunk/test/iso7816_3_t0_analyzer.v $
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$HeadURL: file:///svn/iso7816_3_master/iso7816_3_master/trunk/test/iso7816_3_t0_analyzer.v $
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This file is under the BSD licence:
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This file is under the BSD licence:
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Copyright (c) 2011, Sebastien Riou
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Copyright (c) 2011, Sebastien Riou
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localparam INS_I= 8*3;
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localparam INS_I= 8*3;
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localparam P1_I = 8*2;
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localparam P1_I = 8*2;
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localparam P2_I = 8*1;
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localparam P2_I = 8*1;
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localparam P3_I = 0;
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localparam P3_I = 0;
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reg [CLA_I+7:0] tpduHeader;
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reg [CLA_I+7:0] tpduHeader;
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localparam PPS0_I= CLA_I;
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localparam PPS1_I= INS_I;
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localparam PPS2_I= P1_I;
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localparam PPS3_I= P2_I;
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//wire COM_clk=isoClk;
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//wire COM_clk=isoClk;
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//integer COM_errorCnt;
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//integer COM_errorCnt;
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//wire txPending=1'b0;
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//wire txPending=1'b0;
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//wire txRun=1'b0;
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//wire txRun=1'b0;
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wire msbFirst = useIndirectConvention;
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wire msbFirst = useIndirectConvention;
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wire sioHighValue = ~useIndirectConvention;
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wire sioHighValue = ~useIndirectConvention;
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wire oddParity = 1'b0;
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wire oddParity = 1'b0;
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wire [7:0] dataOut = sioHighValue ? rxData : ~rxData;
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wire [7:0] dataOut = sioHighValue ? rxData : ~rxData;
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//`include "ComRxDriverTasks.v"
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wire endOfRx;
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wire endOfRx;
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wire stopBit2 = useT0;//1 if com use 2 stop bits --> 12 ETU / byte
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wire stopBit2 = useT0;//1 if com use 2 stop bits --> 12 ETU / byte
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wire [12:0] clocksPerBit = cyclesPerEtu-1;
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wire [12:0] clocksPerBit = cyclesPerEtu-1;
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RxCoreSelfContained #(
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RxCoreSelfContained #(
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localparam T0_DATA = 3;
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localparam T0_DATA = 3;
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localparam T0_NACK_DATA = 4;
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localparam T0_NACK_DATA = 4;
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localparam T0_SW1 = 5;
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localparam T0_SW1 = 5;
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localparam T0_SW2 = 6;
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localparam T0_SW2 = 6;
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localparam T0_HEADER_PPS = 100;
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localparam T0_HEADER_PPS = 100;
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localparam T0_PPS_RESPONSE = 101;
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integer fsmState;
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integer fsmState;
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reg [11:0] tdiStruct;
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reg [11:0] tdiStruct;
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wire [3:0] tdiCnt;//i+1
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wire [3:0] tdiCnt;//i+1
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lastByte<=dataOut;
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lastByte<=dataOut;
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ackFlags<=1'b1;
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ackFlags<=1'b1;
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bytesCnt<=bytesCnt+1'b1;
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bytesCnt<=bytesCnt+1'b1;
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end
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end
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end
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end
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reg ppsValidSoFar;
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reg ppsAccepted;
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wire ppsDataMatch = (tpduHeader[(CLA_I-(tempBytesCnt*8))+:8]==dataOut);
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always @(posedge isoClk, negedge nReset) begin
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always @(posedge isoClk, negedge nReset) begin
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if(~nReset) begin
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if(~nReset) begin
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ppsValidSoFar<=1'b0;
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ppsAccepted<=1'b0;
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fiCode<=4'b0001;
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fiCode<=4'b0001;
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diCode<=4'b0001;
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diCode<=4'b0001;
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useT0<=1'b1;
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useT0<=1'b1;
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useT1<=1'b0;
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useT1<=1'b0;
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useT15<=1'b0;
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useT15<=1'b0;
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T0_HEADER: begin
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T0_HEADER: begin
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if(endOfRx) begin
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if(endOfRx) begin
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tpduHeader[CLA_I+:8]<=dataOut;
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tpduHeader[CLA_I+:8]<=dataOut;
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tempBytesCnt <= 1;
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tempBytesCnt <= 1;
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if(8'hFF==dataOut)
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if(8'hFF==dataOut)
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fsmState <= T0_HEADER_PPS;//TODO
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fsmState <= T0_HEADER_PPS;
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else
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else
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fsmState <= T0_HEADER_TPDU;
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fsmState <= T0_HEADER_TPDU;
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end
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end
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end
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end
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T0_HEADER_PPS: begin
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if(endOfRx) begin
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tpduHeader[(CLA_I-(tempBytesCnt*8))+:8]<=dataOut;
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if(3==tempBytesCnt) begin//support only 4 byte PPS
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tempBytesCnt <= 8'h0;
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fsmState <= T0_PPS_RESPONSE;
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{waitCardTx,waitTermTx}<=2'b10;
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ppsValidSoFar<=1'b1;
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ppsAccepted<=1'b0;
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end else begin
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tempBytesCnt <= tempBytesCnt+1;
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end
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end
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end
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T0_PPS_RESPONSE: begin
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if(3==tempBytesCnt) begin//support only 4 byte PPS
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if(guardTime) begin
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if(ppsValidSoFar & ppsDataMatch) begin
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{fiCode,diCode}<=tpduHeader[PPS2_I+:8];
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end
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end
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end
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if(endOfRx) begin
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ppsValidSoFar<=ppsValidSoFar & ppsDataMatch;
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if(3==tempBytesCnt) begin//support only 4 byte PPS
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tempBytesCnt <= 8'h0;
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fsmState <= T0_HEADER;
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{waitCardTx,waitTermTx}<=2'b01;
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case(tpduHeader[(PPS1_I-(tempBytesCnt*8))+:8])
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8'h11: begin
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useT0<=1'b0;
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useT1<=1'b1;
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useT15<=1'b0;
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end
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8'h1F: begin
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useT0<=1'b0;
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useT1<=1'b0;
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useT15<=1'b1;
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end
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default: begin
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useT0<=1'b1;
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useT1<=1'b0;
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useT15<=1'b0;
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end
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endcase
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end else begin
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tempBytesCnt <= tempBytesCnt+1;
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end
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end
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end
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T0_HEADER_TPDU: begin
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T0_HEADER_TPDU: begin
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if(endOfRx) begin
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if(endOfRx) begin
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tpduHeader[(CLA_I-(tempBytesCnt*8))+:8]<=dataOut;
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tpduHeader[(CLA_I-(tempBytesCnt*8))+:8]<=dataOut;
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if(4==tempBytesCnt) begin
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if(4==tempBytesCnt) begin
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tempBytesCnt <= 8'h0;
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tempBytesCnt <= 8'h0;
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