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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: 2011-03-07 14:17:52 +0100 (Mon, 07 Mar 2011) $
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$LastChangedDate: 2011-04-17 23:31:29 +0200 (Sun, 17 Apr 2011) $
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$LastChangedBy: acapola $
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$LastChangedBy: acapola $
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$LastChangedRevision: 18 $
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$LastChangedRevision: 19 $
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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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//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 rxRun, rxStartBit, overrunErrorFlag, frameErrorFlag, bufferFull;
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wire rxRun, rxStartBit, overrunErrorFlag, frameErrorFlag, bufferFull;
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//assign overrunErrorFlag = overrunError;
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assign overrunErrorFlag = overrunError;
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assign frameErrorFlag = frameError;
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assign frameErrorFlag = frameError;
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wire [7:0] rxData;
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wire [7:0] rxData;
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reg ackFlags;
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reg ackFlags;
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if(4'h0==tdiCnt) begin//this is T0
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if(4'h0==tdiCnt) begin//this is T0
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atrK <= dataOut[3:0];
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atrK <= dataOut[3:0];
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end
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end
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tempBytesCnt <= 2'h0;
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tempBytesCnt <= 2'h0;
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tdiStruct <= {tdiCnt+1'b1,dataOut};
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tdiStruct <= {tdiCnt+1'b1,dataOut};
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if(12'h0=={dataOut,atrK}) begin
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//if(12'h0=={dataOut,atrK}) begin
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// atrCompleted <= 1'b1;
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// {waitCardTx,waitTermTx}<=2'b01;
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//end
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if((1'b0==tdiStruct[7]) |//we just received the last interface byte
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(4'b0==dataOut[7:4])) begin //or new TDi indicate no further interface bytes
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//fsmState <= (4'b0!=earlyAtrK) ? ATR_HISTORICAL :
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// atrHasTck ? ATR_TCK : T0_HEADER;
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if(4'b0!=earlyAtrK) begin
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fsmState <= ATR_HISTORICAL;
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end else if(atrHasTck) begin
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fsmState <= ATR_TCK;
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end else begin
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fsmState <= T0_HEADER;
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atrCompleted <= 1'b1;
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atrCompleted <= 1'b1;
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{waitCardTx,waitTermTx}<=2'b01;
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{waitCardTx,waitTermTx}<=2'b01;
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end
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end
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if((1'b0==tdiStruct[7]) |//we just received the last interface byte
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(4'b0==dataOut[7:4])) begin //or new TDi indicate no further interface bytes
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fsmState <= (4'b0!=earlyAtrK) ? ATR_HISTORICAL :
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atrHasTck ? ATR_TCK : T0_HEADER;
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end else begin//TDi, i from 1 to 15
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end else begin//TDi, i from 1 to 15
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fsmState <= ATR_TDI;
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fsmState <= ATR_TDI;
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end
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end
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end else begin //TA, TB or TC bytes
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end else begin //TA, TB or TC bytes
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