X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/ae8e8a437237a059e798f443eb6a8f695754051e..refs/pull/77/head:/armsrc/lfops.c diff --git a/armsrc/lfops.c b/armsrc/lfops.c index 847e4525..16c42855 100644 --- a/armsrc/lfops.c +++ b/armsrc/lfops.c @@ -15,130 +15,45 @@ #include "crc16.h" #include "string.h" #include "lfdemod.h" +#include "lfsampling.h" +#include "usb_cdc.h" /** -* Does the sample acquisition. If threshold is specified, the actual sampling -* is not commenced until the threshold has been reached. -* @param trigger_threshold - the threshold -* @param silent - is true, now outputs are made. If false, dbprints the status -*/ -void DoAcquisition125k_internal(int trigger_threshold,bool silent) -{ - uint8_t *dest = (uint8_t *)BigBuf; - int n = sizeof(BigBuf); - int i; - - memset(dest, 0, n); - i = 0; - for(;;) { - if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) { - AT91C_BASE_SSC->SSC_THR = 0x43; - LED_D_ON(); - } - if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) { - dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR; - LED_D_OFF(); - if (trigger_threshold != -1 && dest[i] < trigger_threshold) - continue; - else - trigger_threshold = -1; - if (++i >= n) break; - } - } - if(!silent) - { - Dbprintf("buffer samples: %02x %02x %02x %02x %02x %02x %02x %02x ...", - dest[0], dest[1], dest[2], dest[3], dest[4], dest[5], dest[6], dest[7]); - - } -} -/** -* Perform sample aquisition. -*/ -void DoAcquisition125k(int trigger_threshold) -{ - DoAcquisition125k_internal(trigger_threshold, false); -} - -/** -* Setup the FPGA to listen for samples. This method downloads the FPGA bitstream -* if not already loaded, sets divisor and starts up the antenna. -* @param divisor : 1, 88> 255 or negative ==> 134.8 KHz -* 0 or 95 ==> 125 KHz -* -**/ -void LFSetupFPGAForADC(int divisor, bool lf_field) -{ - FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - if ( (divisor == 1) || (divisor < 0) || (divisor > 255) ) - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz - else if (divisor == 0) - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz - else - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor); - - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | (lf_field ? FPGA_LF_ADC_READER_FIELD : 0)); - - // Connect the A/D to the peak-detected low-frequency path. - SetAdcMuxFor(GPIO_MUXSEL_LOPKD); - // Give it a bit of time for the resonant antenna to settle. - SpinDelay(50); - // Now set up the SSC to get the ADC samples that are now streaming at us. - FpgaSetupSsc(); -} -/** -* Initializes the FPGA, and acquires the samples. -**/ -void AcquireRawAdcSamples125k(int divisor) -{ - LFSetupFPGAForADC(divisor, true); - // Now call the acquisition routine - DoAcquisition125k_internal(-1,false); -} -/** -* Initializes the FPGA for snoop-mode, and acquires the samples. -**/ - -void SnoopLFRawAdcSamples(int divisor, int trigger_threshold) -{ - LFSetupFPGAForADC(divisor, false); - DoAcquisition125k(trigger_threshold); -} - + * Function to do a modulation and then get samples. + * @param delay_off + * @param period_0 + * @param period_1 + * @param command + */ void ModThenAcquireRawAdcSamples125k(int delay_off, int period_0, int period_1, uint8_t *command) { - /* Make sure the tag is reset */ - FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(2500); - - int divisor_used = 95; // 125 KHz // see if 'h' was specified if (command[strlen((char *) command) - 1] == 'h') divisor_used = 88; // 134.8 KHz + sample_config sc = { 0,0,1, divisor_used, 0}; + setSamplingConfig(&sc); - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor_used); - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); - // Give it a bit of time for the resonant antenna to settle. - SpinDelay(50); + /* Make sure the tag is reset */ + FpgaDownloadAndGo(FPGA_BITSTREAM_LF); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(2500); - // And a little more time for the tag to fully power up - SpinDelay(2000); + LFSetupFPGAForADC(sc.divisor, 1); - // Now set up the SSC to get the ADC samples that are now streaming at us. - FpgaSetupSsc(); + // And a little more time for the tag to fully power up + SpinDelay(2000); // now modulate the reader field while(*command != '\0' && *command != ' ') { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LED_D_OFF(); SpinDelayUs(delay_off); - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor_used); + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc.divisor); FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); LED_D_ON(); @@ -150,14 +65,16 @@ void ModThenAcquireRawAdcSamples125k(int delay_off, int period_0, int period_1, FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LED_D_OFF(); SpinDelayUs(delay_off); - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor_used); + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc.divisor); FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); // now do the read - DoAcquisition125k(-1); + DoAcquisition_config(false); } + + /* blank r/w tag data stream ...0000000000000000 01111111 1010101010101010101010101010101010101010101010101010101010101010 @@ -173,15 +90,12 @@ void ReadTItag(void) // when we read a TI tag we sample the zerocross line at 2Mhz // TI tags modulate a 1 as 16 cycles of 123.2Khz // TI tags modulate a 0 as 16 cycles of 134.2Khz -#define FSAMPLE 2000000 -#define FREQLO 123200 -#define FREQHI 134200 - - signed char *dest = (signed char *)BigBuf; - int n = sizeof(BigBuf); - // int *dest = GraphBuffer; - // int n = GraphTraceLen; + #define FSAMPLE 2000000 + #define FREQLO 123200 + #define FREQHI 134200 + signed char *dest = (signed char *)BigBuf_get_addr(); + uint16_t n = BigBuf_max_traceLen(); // 128 bit shift register [shift3:shift2:shift1:shift0] uint32_t shift3 = 0, shift2 = 0, shift1 = 0, shift0 = 0; @@ -263,10 +177,10 @@ void ReadTItag(void) shift2 = ((shift2>>24) | (shift3 << 8)) & 0x0ffff; // if r/w tag, check ident match - if ( shift3&(1<<15) ) { + if (shift3 & (1<<15) ) { DbpString("Info: TI tag is rewriteable"); // only 15 bits compare, last bit of ident is not valid - if ( ((shift3>>16)^shift0)&0x7fff ) { + if (((shift3 >> 16) ^ shift0) & 0x7fff ) { DbpString("Error: Ident mismatch!"); } else { DbpString("Info: TI tag ident is valid"); @@ -330,10 +244,11 @@ void AcquireTiType(void) int i, j, n; // tag transmission is <20ms, sampling at 2M gives us 40K samples max // each sample is 1 bit stuffed into a uint32_t so we need 1250 uint32_t -#define TIBUFLEN 1250 + #define TIBUFLEN 1250 // clear buffer - memset(BigBuf,0,sizeof(BigBuf)); + uint32_t *BigBuf = (uint32_t *)BigBuf_get_addr(); + memset(BigBuf,0,BigBuf_max_traceLen()/sizeof(uint32_t)); // Set up the synchronous serial port AT91C_BASE_PIOA->PIO_PDR = GPIO_SSC_DIN; @@ -381,7 +296,7 @@ void AcquireTiType(void) AT91C_BASE_PIOA->PIO_PDR = GPIO_SSC_DOUT; AT91C_BASE_PIOA->PIO_ASR = GPIO_SSC_DIN | GPIO_SSC_DOUT; - char *dest = (char *)BigBuf; + char *dest = (char *)BigBuf_get_addr(); n = TIBUFLEN*32; // unpack buffer for (i=TIBUFLEN-1; i>=0; i--) { @@ -470,50 +385,51 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc) void SimulateTagLowFrequency(int period, int gap, int ledcontrol) { int i; - uint8_t *tab = (uint8_t *)BigBuf; - + uint8_t *tab = BigBuf_get_addr(); + FpgaDownloadAndGo(FPGA_BITSTREAM_LF); FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT); - + AT91C_BASE_PIOA->PIO_PER = GPIO_SSC_DOUT | GPIO_SSC_CLK; - + AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT; AT91C_BASE_PIOA->PIO_ODR = GPIO_SSC_CLK; - -#define SHORT_COIL() LOW(GPIO_SSC_DOUT) -#define OPEN_COIL() HIGH(GPIO_SSC_DOUT) - + + #define SHORT_COIL() LOW(GPIO_SSC_DOUT) + #define OPEN_COIL() HIGH(GPIO_SSC_DOUT) + i = 0; for(;;) { + //wait until SSC_CLK goes HIGH while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) { - if(BUTTON_PRESS()) { + if(BUTTON_PRESS() || usb_poll()) { DbpString("Stopped"); return; } WDT_HIT(); } - if (ledcontrol) LED_D_ON(); - + if(tab[i]) OPEN_COIL(); else SHORT_COIL(); - + if (ledcontrol) LED_D_OFF(); - + //wait until SSC_CLK goes LOW while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) { if(BUTTON_PRESS()) { DbpString("Stopped"); return; } WDT_HIT(); - } - + } + i++; if(i == period) { + i = 0; if (gap) { SHORT_COIL(); @@ -528,29 +444,31 @@ void SimulateTagLowFrequencyBidir(int divisor, int t0) { } -// compose fc/8 fc/10 waveform -static void fc(int c, int *n) { - uint8_t *dest = (uint8_t *)BigBuf; +// compose fc/8 fc/10 waveform (FSK2) +static void fc(int c, int *n) +{ + uint8_t *dest = BigBuf_get_addr(); int idx; // for when we want an fc8 pattern every 4 logical bits if(c==0) { dest[((*n)++)]=1; dest[((*n)++)]=1; - dest[((*n)++)]=0; - dest[((*n)++)]=0; + dest[((*n)++)]=1; + dest[((*n)++)]=1; dest[((*n)++)]=0; dest[((*n)++)]=0; dest[((*n)++)]=0; dest[((*n)++)]=0; } - // an fc/8 encoded bit is a bit pattern of 11000000 x6 = 48 samples + + // an fc/8 encoded bit is a bit pattern of 11110000 x6 = 48 samples if(c==8) { for (idx=0; idx<6; idx++) { dest[((*n)++)]=1; dest[((*n)++)]=1; - dest[((*n)++)]=0; - dest[((*n)++)]=0; + dest[((*n)++)]=1; + dest[((*n)++)]=1; dest[((*n)++)]=0; dest[((*n)++)]=0; dest[((*n)++)]=0; @@ -558,14 +476,14 @@ static void fc(int c, int *n) { } } - // an fc/10 encoded bit is a bit pattern of 1110000000 x5 = 50 samples + // an fc/10 encoded bit is a bit pattern of 1111100000 x5 = 50 samples if(c==10) { for (idx=0; idx<5; idx++) { dest[((*n)++)]=1; dest[((*n)++)]=1; dest[((*n)++)]=1; - dest[((*n)++)]=0; - dest[((*n)++)]=0; + dest[((*n)++)]=1; + dest[((*n)++)]=1; dest[((*n)++)]=0; dest[((*n)++)]=0; dest[((*n)++)]=0; @@ -574,6 +492,36 @@ static void fc(int c, int *n) { } } } +// compose fc/X fc/Y waveform (FSKx) +static void fcAll(uint8_t fc, int *n, uint8_t clock, uint16_t *modCnt) +{ + uint8_t *dest = BigBuf_get_addr(); + uint8_t halfFC = fc/2; + uint8_t wavesPerClock = clock/fc; + uint8_t mod = clock % fc; //modifier + uint8_t modAdj = fc/mod; //how often to apply modifier + bool modAdjOk = !(fc % mod); //if (fc % mod==0) modAdjOk=TRUE; + // loop through clock - step field clock + for (uint8_t idx=0; idx < wavesPerClock; idx++){ + // put 1/2 FC length 1's and 1/2 0's per field clock wave (to create the wave) + memset(dest+(*n), 0, fc-halfFC); //in case of odd number use extra here + memset(dest+(*n)+(fc-halfFC), 1, halfFC); + *n += fc; + } + if (mod>0) (*modCnt)++; + if ((mod>0) && modAdjOk){ //fsk2 + if ((*modCnt % modAdj) == 0){ //if 4th 8 length wave in a rf/50 add extra 8 length wave + memset(dest+(*n), 0, fc-halfFC); + memset(dest+(*n)+(fc-halfFC), 1, halfFC); + *n += fc; + } + } + if (mod>0 && !modAdjOk){ //fsk1 + memset(dest+(*n), 0, mod-(mod/2)); + memset(dest+(*n)+(mod-(mod/2)), 1, mod/2); + *n += mod; + } +} // prepare a waveform pattern in the buffer based on the ID given then // simulate a HID tag until the button is pressed @@ -591,7 +539,7 @@ void CmdHIDsimTAG(int hi, int lo, int ledcontrol) */ if (hi>0xFFF) { - DbpString("Tags can only have 44 bits."); + DbpString("Tags can only have 44 bits. - USE lf simfsk for larger tags"); return; } fc(0,&n); @@ -631,14 +579,158 @@ void CmdHIDsimTAG(int hi, int lo, int ledcontrol) LED_A_OFF(); } +// prepare a waveform pattern in the buffer based on the ID given then +// simulate a FSK tag until the button is pressed +// arg1 contains fcHigh and fcLow, arg2 contains invert and clock +void CmdFSKsimTAG(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream) +{ + int ledcontrol=1; + int n=0, i=0; + uint8_t fcHigh = arg1 >> 8; + uint8_t fcLow = arg1 & 0xFF; + uint16_t modCnt = 0; + uint8_t clk = arg2 & 0xFF; + uint8_t invert = (arg2 >> 8) & 1; + + for (i=0; i> 8) & 0xFF; + uint8_t manchester = arg1 & 1; + uint8_t separator = arg2 & 1; + uint8_t invert = (arg2 >> 8) & 1; + for (i=0; i> 8; + uint8_t carrier = arg1 & 0xFF; + uint8_t invert = arg2 & 0xFF; + uint8_t curPhase = 0; + for (i=0; i0 && lo>0){ + DoAcquisition_default(-1,true); + // FSK demodulator + size = sizeOfBigBuff; //variable size will change after demod so re initialize it before use + idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo); + + if (idx>0 && lo>0){ // final loop, go over previously decoded manchester data and decode into usable tag ID // 111000 bit pattern represent start of frame, 01 pattern represents a 1 and 10 represents a 0 if (hi2 != 0){ //extra large HID tags @@ -667,30 +755,30 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol) uint8_t bitlen = 0; uint32_t fc = 0; uint32_t cardnum = 0; - if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used + if (((hi>>5)&1) == 1){//if bit 38 is set then < 37 bit format is used uint32_t lo2=0; lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit uint8_t idx3 = 1; - while(lo2>1){ //find last bit set to 1 (format len bit) - lo2=lo2>>1; + while(lo2 > 1){ //find last bit set to 1 (format len bit) + lo2=lo2 >> 1; idx3++; } - bitlen =idx3+19; + bitlen = idx3+19; fc =0; cardnum=0; - if(bitlen==26){ + if(bitlen == 26){ cardnum = (lo>>1)&0xFFFF; fc = (lo>>17)&0xFF; } - if(bitlen==37){ + if(bitlen == 37){ cardnum = (lo>>1)&0x7FFFF; fc = ((hi&0xF)<<12)|(lo>>20); } - if(bitlen==34){ + if(bitlen == 34){ cardnum = (lo>>1)&0xFFFF; fc= ((hi&1)<<15)|(lo>>17); } - if(bitlen==35){ + if(bitlen == 35){ cardnum = (lo>>1)&0xFFFFF; fc = ((hi&1)<<11)|(lo>>21); } @@ -712,13 +800,14 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol) } if (findone){ if (ledcontrol) LED_A_OFF(); + *high = hi; + *low = lo; return; } // reset hi2 = hi = lo = 0; } WDT_HIT(); - //SpinDelay(50); } DbpString("Stopped"); if (ledcontrol) LED_A_OFF(); @@ -726,11 +815,10 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol) void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); - size_t size=0; //, found=0; - uint32_t bitLen=0; - int clk=0, invert=0, errCnt=0; + size_t size=0, idx=0; + int clk=0, invert=0, errCnt=0, maxErr=20; uint64_t lo=0; // Configure to go in 125Khz listen mode LFSetupFPGAForADC(95, true); @@ -740,26 +828,29 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol) WDT_HIT(); if (ledcontrol) LED_A_ON(); - DoAcquisition125k_internal(-1,true); - size = sizeof(BigBuf); - if (size < 2000) continue; - // FSK demodulator - //int askmandemod(uint8_t *BinStream,uint32_t *BitLen,int *clk, int *invert); - bitLen=size; + DoAcquisition_default(-1,true); + size = BigBuf_max_traceLen(); //Dbprintf("DEBUG: Buffer got"); - errCnt = askmandemod(dest,&bitLen,&clk,&invert); //HIDdemodFSK(dest,size,&hi2,&hi,&lo); + //askdemod and manchester decode + errCnt = askmandemod(dest, &size, &clk, &invert, maxErr); //Dbprintf("DEBUG: ASK Got"); WDT_HIT(); if (errCnt>=0){ - lo = Em410xDecode(dest,bitLen); + lo = Em410xDecode(dest, &size, &idx); //Dbprintf("DEBUG: EM GOT"); - //printEM410x(lo); if (lo>0){ - Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)",(uint32_t)(lo>>32),(uint32_t)lo,(uint32_t)(lo&0xFFFF),(uint32_t)((lo>>16LL) & 0xFF),(uint32_t)(lo & 0xFFFFFF)); + Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)", + (uint32_t)(lo>>32), + (uint32_t)lo, + (uint32_t)(lo&0xFFFF), + (uint32_t)((lo>>16LL) & 0xFF), + (uint32_t)(lo & 0xFFFFFF)); } if (findone){ if (ledcontrol) LED_A_OFF(); + *high=lo>>32; + *low=lo & 0xFFFFFFFF; return; } } else{ @@ -771,7 +862,6 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol) invert=0; errCnt=0; size=0; - //SpinDelay(50); } DbpString("Stopped"); if (ledcontrol) LED_A_OFF(); @@ -779,8 +869,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol) void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) { - uint8_t *dest = (uint8_t *)BigBuf; - size_t size=0; + uint8_t *dest = BigBuf_get_addr(); int idx=0; uint32_t code=0, code2=0; uint8_t version=0; @@ -792,10 +881,10 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) while(!BUTTON_PRESS()) { WDT_HIT(); if (ledcontrol) LED_A_ON(); - DoAcquisition125k_internal(-1,true); - //fskdemod and get start index + DoAcquisition_default(-1,true); + //fskdemod and get start index WDT_HIT(); - idx = IOdemodFSK(dest,sizeof(BigBuf)); + idx = IOdemodFSK(dest, BigBuf_max_traceLen()); if (idx>0){ //valid tag found @@ -828,6 +917,8 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) if (findone){ if (ledcontrol) LED_A_OFF(); //LED_A_OFF(); + *high=code; + *low=code2; return; } code=code2=0; @@ -967,11 +1058,11 @@ void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMod // Read one card block in page 0 void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); //int m=0, i=0; //enio adjustment 12/10/14 uint32_t m=0, i=0; FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - m = sizeof(BigBuf); + m = BigBuf_max_traceLen(); // Clear destination buffer before sending the command memset(dest, 128, m); // Connect the A/D to the peak-detected low-frequency path. @@ -1032,11 +1123,11 @@ void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode) // Read card traceability data (page 1) void T55xxReadTrace(void){ - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int m=0, i=0; FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - m = sizeof(BigBuf); + m = BigBuf_max_traceLen(); // Clear destination buffer before sending the command memset(dest, 128, m); // Connect the A/D to the peak-detected low-frequency path. @@ -1211,7 +1302,7 @@ void CopyIOtoT55x7(uint32_t hi, uint32_t lo, uint8_t longFMT) data1 = hi; // load preamble data2 = lo; - + LED_D_ON(); // Program the data blocks for supplied ID // and the block 0 for HID format @@ -1353,7 +1444,7 @@ void CopyIndala64toT55x7(int hi, int lo) DbpString("DONE!"); -} +} void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int uid6, int uid7) { @@ -1386,8 +1477,8 @@ void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int int DemodPCF7931(uint8_t **outBlocks) { uint8_t BitStream[256]; uint8_t Blocks[8][16]; - uint8_t *GraphBuffer = (uint8_t *)BigBuf; - int GraphTraceLen = sizeof(BigBuf); + uint8_t *GraphBuffer = BigBuf_get_addr(); + int GraphTraceLen = BigBuf_max_traceLen(); int i, j, lastval, bitidx, half_switch; int clock = 64; int tolerance = clock / 8; @@ -1397,7 +1488,9 @@ int DemodPCF7931(uint8_t **outBlocks) { int lmin=128, lmax=128; uint8_t dir; - AcquireRawAdcSamples125k(0); + LFSetupFPGAForADC(95, true); + DoAcquisition_default(0, 0); + lmin = 64; lmax = 192; @@ -1624,7 +1717,7 @@ void ReadPCF7931() { tries++; if (BUTTON_PRESS()) return; } while (num_blocks != max_blocks); -end: + end: Dbprintf("-----------------------------------------"); Dbprintf("Memory content:"); Dbprintf("-----------------------------------------"); @@ -1804,7 +1897,7 @@ void EM4xLogin(uint32_t Password) { void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) { uint8_t fwd_bit_count; - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int m=0, i=0; //If password mode do login @@ -1814,7 +1907,7 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) { fwd_bit_count = Prepare_Cmd( FWD_CMD_READ ); fwd_bit_count += Prepare_Addr( Address ); - m = sizeof(BigBuf); + m = BigBuf_max_traceLen(); // Clear destination buffer before sending the command memset(dest, 128, m); // Connect the A/D to the peak-detected low-frequency path.