LED_A_OFF(); // Finished receiving
Uart.state = STATE_UNSYNCD;
if (Uart.byteCnt != 0) {
- return TRUE;
+ return TRUE;
}
} else {
// this is an error
for(;;) {
if(!GetIso14443bCommandFromReader(receivedCmd, &len)) {
- Dbprintf("button pressed, received %d commands", cmdsRecvd);
- break;
+ Dbprintf("button pressed, received %d commands", cmdsRecvd);
+ break;
}
if (tracing) {
Demod.sumI = ci;
Demod.sumQ = cq;
Demod.posCount = 1;
- }
+ }
break;
case DEMOD_PHASE_REF_TRAINING:
if (v > SUBCARRIER_DETECT_THRESHOLD) {
// set the reference phase (will code a logic '1') by averaging over 32 1/fs.
// note: synchronization time > 80 1/fs
- Demod.sumI += ci;
- Demod.sumQ += cq;
+ Demod.sumI += ci;
+ Demod.sumQ += cq;
Demod.posCount++;
} else { // subcarrier lost
- Demod.state = DEMOD_UNSYNCD;
+ Demod.state = DEMOD_UNSYNCD;
}
} else {
- Demod.state = DEMOD_AWAITING_FALLING_EDGE_OF_SOF;
+ Demod.state = DEMOD_AWAITING_FALLING_EDGE_OF_SOF;
}
break;
LED_C_OFF();
if(s == 0x000) {
// This is EOF (start, stop and all data bits == '0'
- return TRUE;
+ return TRUE;
}
}
}
if(Handle14443bSamplesDemod(ci, cq)) {
gotFrame = TRUE;
break;
- }
}
+ }
if(samples > n || gotFrame) {
break;
if(cmd1[2] != Demod.output[8] || cmd1[3] != Demod.output[9]) {
Dbprintf("CRC Error reading block! Expected: %04x got: %04x",
(cmd1[2]<<8)+cmd1[3], (Demod.output[8]<<8)+Demod.output[9]);
- // Do not return;, let's go on... (we should retry, maybe ?)
+ // Do not return;, let's go on... (we should retry, maybe ?)
}
Dbprintf("Tag UID (64 bits): %08x %08x",
(Demod.output[7]<<24) + (Demod.output[6]<<16) + (Demod.output[5]<<8) + Demod.output[4],
i = 0x00;
dwLast++;
for (;;) {
- if (i == dwLast) {
+ if (i == dwLast) {
DbpString("System area block (0xff):");
i = 0xff;
}
CodeAndTransmit14443bAsReader(cmd1, sizeof(cmd1));
GetSamplesFor14443bDemod(RECEIVE_SAMPLES_TIMEOUT, TRUE);
if (Demod.len != 6) { // Check if we got an answer from the tag
- DbpString("Expected 6 bytes from tag, got less...");
- return;
+ DbpString("Expected 6 bytes from tag, got less...");
+ return;
}
// The check the CRC of the answer (use cmd1 as temporary variable):
ComputeCrc14443(CRC_14443_B, Demod.output, 4, &cmd1[2], &cmd1[3]);
- if(cmd1[2] != Demod.output[4] || cmd1[3] != Demod.output[5]) {
+ if(cmd1[2] != Demod.output[4] || cmd1[3] != Demod.output[5]) {
Dbprintf("CRC Error reading block! Expected: %04x got: %04x",
(cmd1[2]<<8)+cmd1[3], (Demod.output[4]<<8)+Demod.output[5]);
- // Do not return;, let's go on... (we should retry, maybe ?)
+ // Do not return;, let's go on... (we should retry, maybe ?)
}
// Now print out the memory location:
Dbprintf("Address=%02x, Contents=%08x, CRC=%04x", i,
(Demod.output[3]<<24) + (Demod.output[2]<<16) + (Demod.output[1]<<8) + Demod.output[0],
- (Demod.output[4]<<8)+Demod.output[5]);
- if (i == 0xff) {
- break;
- }
+ (Demod.output[4]<<8)+Demod.output[5]
+ );
+ if (i == 0xff) break;
i++;
}
}
FpgaSetupSscDma((uint8_t*) dmaBuf, ISO14443B_DMA_BUFFER_SIZE);
uint8_t parity[MAX_PARITY_SIZE];
+ bool TagIsActive = FALSE;
+ bool ReaderIsActive = FALSE;
+
bool TagIsActive = FALSE;
bool ReaderIsActive = FALSE;
if(behindBy > (9*ISO14443B_DMA_BUFFER_SIZE/10)) { // TODO: understand whether we can increase/decrease as we want or not?
Dbprintf("blew circular buffer! behindBy=%d", behindBy);
break;
+ WDT_HIT();
+ if(behindBy > (9*DMA_BUFFER_SIZE/10)) { // TODO: understand whether we can increase/decrease as we want or not?
+ Dbprintf("blew circular buffer! behindBy=%d", behindBy);
+ break;
}
if(!tracing) {
DbpString("Reached trace limit");
if (!TagIsActive) { // no need to try decoding reader data if the tag is sending
if(Handle14443bUartBit(ci & 0x01)) {
- if(triggered && tracing) {
+ if(triggered && tracing) {
LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
- }
- /* And ready to receive another command. */
- UartReset();
- /* And also reset the demod code, which might have been */
- /* false-triggered by the commands from the reader. */
- DemodReset();
}
+ /* And ready to receive another command. */
+ UartReset();
+ /* And also reset the demod code, which might have been */
+ /* false-triggered by the commands from the reader. */
+ DemodReset();
+ }
if(Handle14443bUartBit(cq & 0x01)) {
- if(triggered && tracing) {
+ if(triggered && tracing) {
LogTrace(Uart.output, Uart.byteCnt, samples, samples, parity, TRUE);
- }
- /* And ready to receive another command. */
- UartReset();
- /* And also reset the demod code, which might have been */
- /* false-triggered by the commands from the reader. */
- DemodReset();
}
+ /* And ready to receive another command. */
+ UartReset();
+ /* And also reset the demod code, which might have been */
+ /* false-triggered by the commands from the reader. */
+ DemodReset();
+ }
ReaderIsActive = (Uart.state > STATE_GOT_FALLING_EDGE_OF_SOF);
}
if(!ReaderIsActive) { // no need to try decoding tag data if the reader is sending - and we cannot afford the time
if(Handle14443bSamplesDemod(ci | 0x01, cq | 0x01)) {
- //Use samples as a time measurement
- if(tracing)
- {
- uint8_t parity[MAX_PARITY_SIZE];
+ //Use samples as a time measurement
+ if(tracing)
+ {
+ uint8_t parity[MAX_PARITY_SIZE];
LogTrace(Demod.output, Demod.len, samples, samples, parity, FALSE);
- }
- triggered = TRUE;
-
- // And ready to receive another response.
- DemodReset();
}
+ triggered = TRUE;
+
+ // And ready to receive another response.
+ DemodReset();
+ }
TagIsActive = (Demod.state > DEMOD_GOT_FALLING_EDGE_OF_SOF);
}
projects / proxmark3-svn / blobdiff