From 7705bf4e37d2fcece03e5c0d693f10956f012bc3 Mon Sep 17 00:00:00 2001 From: pwpiwi Date: Tue, 23 Dec 2014 11:11:52 +0100 Subject: [PATCH] fixed a bug in iso14443a.c which had been introduced with the big frame and parity support (commit 6a1f2d82) - thanks iceman for finding and testing --- armsrc/iso14443a.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c index b1d3690f..a4632aa5 100644 --- a/armsrc/iso14443a.c +++ b/armsrc/iso14443a.c @@ -395,7 +395,11 @@ static RAMFUNC bool MillerDecoding(uint8_t bit, uint32_t non_real_time) } else if (Uart.len & 0x0007) { // there are some parity bits to store Uart.parityBits <<= (8 - (Uart.len&0x0007)); // left align remaining parity bits Uart.parity[Uart.parityLen++] = Uart.parityBits; // and store them + } + if (Uart.len) { return TRUE; // we are finished with decoding the raw data sequence + } else { + UartReset(); // Nothing received - try again } } if (Uart.state == STATE_START_OF_COMMUNICATION) { // error - must not follow directly after SOC @@ -558,6 +562,8 @@ static RAMFUNC int ManchesterDecoding(uint8_t bit, uint16_t offset, uint32_t non } else if (Demod.len & 0x0007) { // there are some parity bits to store Demod.parityBits <<= (8 - (Demod.len&0x0007)); // left align remaining parity bits Demod.parity[Demod.parityLen++] = Demod.parityBits; // and store them + } + if (Demod.len) { return TRUE; // we are finished with decoding the raw data sequence } else { // nothing received. Start over DemodReset(); @@ -1631,7 +1637,7 @@ bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_Start //----------------------------------------------------------------------------- static int GetIso14443aAnswerFromTag(uint8_t *receivedResponse, uint8_t *receivedResponsePar, uint16_t offset) { - uint16_t c; + uint32_t c; // Set FPGA mode to "reader listen mode", no modulation (listen // only, since we are receiving, not transmitting). -- 2.39.2