From 9bea179a71188589f8e642f615177a108cea8d55 Mon Sep 17 00:00:00 2001 From: d18c7db Date: Sat, 25 Jul 2009 11:47:43 +0000 Subject: [PATCH] added tiwrite command, split LF code from appmain into lfops.c --- armsrc/Makefile | 1 + armsrc/Makefile.linux | 1 + armsrc/appmain.c | 1097 +++++++++++------------------------------ armsrc/apps.h | 20 +- armsrc/lfops.c | 654 ++++++++++++++++++++++++ common/crc16.c | 4 +- include/usb_cmd.h | 89 ++-- winsrc/command.cpp | 43 +- 8 files changed, 1042 insertions(+), 867 deletions(-) create mode 100644 armsrc/lfops.c diff --git a/armsrc/Makefile b/armsrc/Makefile index b7b4d710..1c73054a 100644 --- a/armsrc/Makefile +++ b/armsrc/Makefile @@ -21,6 +21,7 @@ OBJLCD = $(OBJDIR)/fonts.o \ OBJ = $(OBJDIR)/start.o \ $(OBJDIR)/appmain.o \ $(OBJDIR)/fpga.o \ + $(OBJDIR)/lfops.o \ $(OBJDIR)/iso14443.o \ $(OBJDIR)/iso14443a.o \ $(OBJDIR)/iso15693.o \ diff --git a/armsrc/Makefile.linux b/armsrc/Makefile.linux index 897a6b12..9f3b7874 100644 --- a/armsrc/Makefile.linux +++ b/armsrc/Makefile.linux @@ -32,6 +32,7 @@ OBJLCD = $(OBJDIR)/LCD.o\ OBJ = $(OBJDIR)/start.o \ $(OBJDIR)/appmain.o \ $(OBJDIR)/fpga.o \ + $(OBJDIR)/lfops.o \ $(OBJDIR)/iso15693.o \ $(OBJDIR)/util.o diff --git a/armsrc/appmain.c b/armsrc/appmain.c index f35a82fa..7dba687f 100644 --- a/armsrc/appmain.c +++ b/armsrc/appmain.c @@ -5,7 +5,6 @@ // Edits by Gerhard de Koning Gans, Sep 2007 (##) //----------------------------------------------------------------------------- - #include #include #include "apps.h" @@ -14,9 +13,6 @@ #include "LCD.h" #endif -// The large multi-purpose buffer, typically used to hold A/D samples, -// maybe pre-processed in some way. -DWORD BigBuf[16000]; int usbattached = 0; //============================================================================= @@ -29,7 +25,6 @@ BYTE ToSend[256]; int ToSendMax; static int ToSendBit; - void BufferClear(void) { memset(BigBuf,0,sizeof(BigBuf)); @@ -99,185 +94,6 @@ void DbpIntegers(int x1, int x2, int x3) SpinDelay(50); } -void AcquireRawAdcSamples125k(BOOL at134khz) -{ - if(at134khz) { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } else { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } - - // 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(); - - // Now call the acquisition routine - DoAcquisition125k(at134khz); -} - -// split into two routines so we can avoid timing issues after sending commands // -void DoAcquisition125k(BOOL at134khz) -{ - BYTE *dest = (BYTE *)BigBuf; - int n = sizeof(BigBuf); - int i; - - memset(dest,0,n); - i = 0; - for(;;) { - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = 0x43; - LED_D_ON(); - } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { - dest[i] = (BYTE)SSC_RECEIVE_HOLDING; - i++; - LED_D_OFF(); - if(i >= n) { - break; - } - } - } - DbpIntegers(dest[0], dest[1], at134khz); -} - -void ModThenAcquireRawAdcSamples125k(int delay_off,int period_0,int period_1,BYTE *command) -{ - BOOL at134khz; - - // see if 'h' was specified - if(command[strlen((char *) command) - 1] == 'h') - at134khz= TRUE; - else - at134khz= FALSE; - - if(at134khz) { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } else { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } - - // 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(); - - // now modulate the reader field - while(*command != '\0' && *command != ' ') - { - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LED_D_OFF(); - SpinDelayUs(delay_off); - if(at134khz) { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } else { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } - LED_D_ON(); - if(*(command++) == '0') - SpinDelayUs(period_0); - else - SpinDelayUs(period_1); - } - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LED_D_OFF(); - SpinDelayUs(delay_off); - if(at134khz) { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } else { - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); - } - - // now do the read - DoAcquisition125k(at134khz); -} - -void AcquireTiType(void) -{ - int i; - int n = 5000; - - // clear buffer - memset(BigBuf,0,sizeof(BigBuf)); - - // Set up the synchronous serial port - PIO_DISABLE = (1<= n) return; - } - WDT_HIT(); - } - - // return stolen pin to SSP - PIO_DISABLE = (1<= 8) { + dest[i] = v; + v = 0; + p = 0; + i++; - while(PIO_PIN_DATA_STATUS & (1<= n) { + break; + } } - WDT_HIT(); } - - i++; - if(i == period) i = 0; } + DbpString("simulate tag (now type bitsamples)"); } -// compose fc/8 fc/10 waveform -static void fc(int c, int *n) { - BYTE *dest = (BYTE *)BigBuf; - 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)++)]=0; - dest[((*n)++)]=0; - dest[((*n)++)]=0; - dest[((*n)++)]=0; - } - // an fc/8 encoded bit is a bit pattern of 11000000 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)++)]=0; - dest[((*n)++)]=0; - dest[((*n)++)]=0; - dest[((*n)++)]=0; - } - } +void ReadMem(int addr) +{ + const DWORD *data = ((DWORD *)addr); + int i; - // an fc/10 encoded bit is a bit pattern of 1110000000 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)++)]=0; - dest[((*n)++)]=0; - dest[((*n)++)]=0; - dest[((*n)++)]=0; - dest[((*n)++)]=0; - } - } + DbpString("Reading memory at address"); + DbpIntegers(0, 0, addr); + for (i = 0; i < 8; i+= 2) + DbpIntegers(0, data[i], data[i+1]); } -// prepare a waveform pattern in the buffer based on the ID given then -// simulate a HID tag until the button is pressed -static void CmdHIDsimTAG(int hi, int lo, int ledcontrol) +// samy's sniff and repeat routine +void SamyRun() { - int n=0, i=0; - /* - HID tag bitstream format - The tag contains a 44bit unique code. This is sent out MSB first in sets of 4 bits - A 1 bit is represented as 6 fc8 and 5 fc10 patterns - A 0 bit is represented as 5 fc10 and 6 fc8 patterns - A fc8 is inserted before every 4 bits - A special start of frame pattern is used consisting a0b0 where a and b are neither 0 - nor 1 bits, they are special patterns (a = set of 12 fc8 and b = set of 10 fc10) - */ - - if (hi>0xFFF) { - DbpString("Tags can only have 44 bits."); - return; - } - fc(0,&n); - // special start of frame marker containing invalid bit sequences - fc(8, &n); fc(8, &n); // invalid - fc(8, &n); fc(10, &n); // logical 0 - fc(10, &n); fc(10, &n); // invalid - fc(8, &n); fc(10, &n); // logical 0 - - WDT_HIT(); - // manchester encode bits 43 to 32 - for (i=11; i>=0; i--) { - if ((i%4)==3) fc(0,&n); - if ((hi>>i)&1) { - fc(10, &n); fc(8, &n); // low-high transition - } else { - fc(8, &n); fc(10, &n); // high-low transition - } - } + DbpString("Stand-alone mode! No PC necessary."); - WDT_HIT(); - // manchester encode bits 31 to 0 - for (i=31; i>=0; i--) { - if ((i%4)==3) fc(0,&n); - if ((lo>>i)&1) { - fc(10, &n); fc(8, &n); // low-high transition - } else { - fc(8, &n); fc(10, &n); // high-low transition - } - } + // 3 possible options? no just 2 for now +#define OPTS 2 - if (ledcontrol) - LED_A_ON(); - SimulateTagLowFrequency(n, ledcontrol); + int high[OPTS], low[OPTS]; - if (ledcontrol) - LED_A_OFF(); -} + // Oooh pretty -- notify user we're in elite samy mode now + LED(LED_RED, 200); + LED(LED_ORANGE, 200); + LED(LED_GREEN, 200); + LED(LED_ORANGE, 200); + LED(LED_RED, 200); + LED(LED_ORANGE, 200); + LED(LED_GREEN, 200); + LED(LED_ORANGE, 200); + LED(LED_RED, 200); -// loop to capture raw HID waveform then FSK demodulate the TAG ID from it -static void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol) -{ - BYTE *dest = (BYTE *)BigBuf; - int m=0, n=0, i=0, idx=0, found=0, lastval=0; - DWORD hi=0, lo=0; + int selected = 0; + int playing = 0; - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + // Turn on selected LED + LED(selected + 1, 0); - // Connect the A/D to the peak-detected low-frequency path. - SetAdcMuxFor(GPIO_MUXSEL_LOPKD); + for (;;) + { + usbattached = UsbPoll(FALSE); + WDT_HIT(); - // Give it a bit of time for the resonant antenna to settle. - SpinDelay(50); + // Was our button held down or pressed? + int button_pressed = BUTTON_HELD(1000); + SpinDelay(300); - // Now set up the SSC to get the ADC samples that are now streaming at us. - FpgaSetupSsc(); + // Button was held for a second, begin recording + if (button_pressed > 0) + { + LEDsoff(); + LED(selected + 1, 0); + LED(LED_RED2, 0); - for(;;) { - WDT_HIT(); - if (ledcontrol) - LED_A_ON(); - if(BUTTON_PRESS()) { - DbpString("Stopped"); - if (ledcontrol) - LED_A_OFF(); - return; - } + // record + DbpString("Starting recording"); - i = 0; - m = sizeof(BigBuf); - memset(dest,128,m); - for(;;) { - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = 0x43; - if (ledcontrol) - LED_D_ON(); - } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { - dest[i] = (BYTE)SSC_RECEIVE_HOLDING; - // we don't care about actual value, only if it's more or less than a - // threshold essentially we capture zero crossings for later analysis - if(dest[i] < 127) dest[i] = 0; else dest[i] = 1; - i++; - if (ledcontrol) - LED_D_OFF(); - if(i >= m) { - break; - } - } - } + // wait for button to be released + while(BUTTON_PRESS()) + WDT_HIT(); - // FSK demodulator + /* need this delay to prevent catching some weird data */ + SpinDelay(500); - // sync to first lo-hi transition - for( idx=1; idx>1)&0xffff); - /* if we're only looking for one tag */ - if (findone) - { - *high = hi; - *low = lo; - return; - } - hi=0; - lo=0; - found=0; - } - } - if (found) { - if (dest[idx] && (!dest[idx+1]) ) { - hi=(hi<<1)|(lo>>31); - lo=(lo<<1)|0; - } else if ( (!dest[idx]) && dest[idx+1]) { - hi=(hi<<1)|(lo>>31); - lo=(lo<<1)|1; - } else { - found=0; - hi=0; - lo=0; - } - idx++; - } - if ( dest[idx] && dest[idx+1] && dest[idx+2] && (!dest[idx+3]) && (!dest[idx+4]) && (!dest[idx+5]) ) + LEDsoff(); + LED(selected + 1, 0); + + // Begin transmitting + if (playing) { - found=1; - idx+=6; - if (found && (hi|lo)) { - DbpString("TAG ID"); - DbpIntegers(hi, lo, (lo>>1)&0xffff); - /* if we're only looking for one tag */ - if (findone) + LED(LED_GREEN, 0); + DbpString("Playing"); + // wait for button to be released + while(BUTTON_PRESS()) + WDT_HIT(); + DbpIntegers(selected, high[selected], low[selected]); + CmdHIDsimTAG(high[selected], low[selected], 0); + DbpString("Done playing"); + if (BUTTON_HELD(1000) > 0) { - *high = hi; - *low = lo; - return; + DbpString("Exiting"); + LEDsoff(); + return; } - hi=0; - lo=0; - found=0; - } + + /* We pressed a button so ignore it here with a delay */ + SpinDelay(300); + + // when done, we're done playing, move to next option + selected = (selected + 1) % OPTS; + playing = !playing; + LEDsoff(); + LED(selected + 1, 0); } + else + while(BUTTON_PRESS()) + WDT_HIT(); } - WDT_HIT(); } } -void SimulateTagHfListen(void) + +/* +OBJECTIVE +Listen and detect an external reader. Determine the best location +for the antenna. + +INSTRUCTIONS: +Inside the ListenReaderField() function, there is two mode. +By default, when you call the function, you will enter mode 1. +If you press the PM3 button one time, you will enter mode 2. +If you press the PM3 button a second time, you will exit the function. + +DESCRIPTION OF MODE 1: +This mode just listens for an external reader field and lights up green +for HF and/or red for LF. This is the original mode of the detectreader +function. + +DESCRIPTION OF MODE 2: +This mode will visually represent, using the LEDs, the actual strength of the +current compared to the maximum current detected. Basically, once you know +what kind of external reader is present, it will help you spot the best location to place +your antenna. You will probably not get some good results if there is a LF and a HF reader +at the same place! :-) + +LIGHT SCHEME USED: + +Light scheme | Descriptiong +---------------------------------------------------- + ---- | No field detected + X--- | 14% of maximum current detected + -X-- | 29% of maximum current detected + --X- | 43% of maximum current detected + ---X | 57% of maximum current detected + --XX | 71% of maximum current detected + -XXX | 86% of maximum current detected + XXXX | 100% of maximum current detected + +TODO: +Add the LF part for MODE 2 + +*/ +void ListenReaderField(int limit) { - BYTE *dest = (BYTE *)BigBuf; - int n = sizeof(BigBuf); - BYTE v = 0; - int i; - int p = 0; + int lf_av, lf_av_new, lf_baseline= 0, lf_count= 0; + int hf_av, hf_av_new, hf_baseline= 0, hf_count= 0, hf_max; + int mode=1; - // We're using this mode just so that I can test it out; the simulated - // tag mode would work just as well and be simpler. - FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_848_KHZ | FPGA_HF_READER_RX_XCORR_SNOOP); +#define LF_ONLY 1 +#define HF_ONLY 2 - // We need to listen to the high-frequency, peak-detected path. - SetAdcMuxFor(GPIO_MUXSEL_HIPKD); + LED_A_OFF(); + LED_B_OFF(); + LED_C_OFF(); + LED_D_OFF(); - FpgaSetupSsc(); + lf_av= ReadAdc(ADC_CHAN_LF); - i = 0; - for(;;) { - if(SSC_STATUS & (SSC_STATUS_TX_READY)) { - SSC_TRANSMIT_HOLDING = 0xff; + if(limit != HF_ONLY) + { + DbpString("LF 125/134 Baseline:"); + DbpIntegers(lf_av,0,0); + lf_baseline= lf_av; } - if(SSC_STATUS & (SSC_STATUS_RX_READY)) { - BYTE r = (BYTE)SSC_RECEIVE_HOLDING; - v <<= 1; - if(r & 1) { - v |= 1; - } - p++; + hf_av=hf_max=ReadAdc(ADC_CHAN_HF); - if(p >= 8) { - dest[i] = v; - v = 0; - p = 0; - i++; + if (limit != LF_ONLY) + { + DbpString("HF 13.56 Baseline:"); + DbpIntegers(hf_av,0,0); + hf_baseline= hf_av; + } - if(i >= n) { + for(;;) + { + if (BUTTON_PRESS()) { + SpinDelay(500); + switch (mode) { + case 1: + mode=2; + DbpString("Signal Strength Mode"); break; + case 2: + default: + DbpString("Stopped"); + LED_A_OFF(); + LED_B_OFF(); + LED_C_OFF(); + LED_D_OFF(); + return; + break; + } + } + WDT_HIT(); + + if (limit != HF_ONLY) + { + if (abs(lf_av - lf_baseline) > 10) + LED_D_ON(); + else + LED_D_OFF(); + ++lf_count; + lf_av_new= ReadAdc(ADC_CHAN_LF); + // see if there's a significant change + if(abs(lf_av - lf_av_new) > 10) + { + DbpString("LF 125/134 Field Change:"); + DbpIntegers(lf_av,lf_av_new,lf_count); + lf_av= lf_av_new; + lf_count= 0; + } + } + + if (limit != LF_ONLY) + { + if (abs(hf_av - hf_baseline) > 10) { + if (mode == 1) + LED_B_ON(); + if (mode == 2) { + if ( hf_av>(hf_max/7)*6) { + LED_A_ON(); LED_B_ON(); LED_C_ON(); LED_D_ON(); + } + if ( (hf_av>(hf_max/7)*5) && (hf_av<=(hf_max/7)*6) ) { + LED_A_ON(); LED_B_ON(); LED_C_OFF(); LED_D_ON(); + } + if ( (hf_av>(hf_max/7)*4) && (hf_av<=(hf_max/7)*5) ) { + LED_A_OFF(); LED_B_ON(); LED_C_OFF(); LED_D_ON(); + } + if ( (hf_av>(hf_max/7)*3) && (hf_av<=(hf_max/7)*4) ) { + LED_A_OFF(); LED_B_OFF(); LED_C_OFF(); LED_D_ON(); + } + if ( (hf_av>(hf_max/7)*2) && (hf_av<=(hf_max/7)*3) ) { + LED_A_OFF(); LED_B_ON(); LED_C_OFF(); LED_D_OFF(); + } + if ( (hf_av>(hf_max/7)*1) && (hf_av<=(hf_max/7)*2) ) { + LED_A_ON(); LED_B_OFF(); LED_C_OFF(); LED_D_OFF(); + } + if ( (hf_av>(hf_max/7)*0) && (hf_av<=(hf_max/7)*1) ) { + LED_A_OFF(); LED_B_OFF(); LED_C_ON(); LED_D_OFF(); + } + } + } else { + if (mode == 1) { + LED_B_OFF(); + } + if (mode == 2) { + LED_A_OFF(); LED_B_OFF(); LED_C_OFF(); LED_D_OFF(); + } + } + + ++hf_count; + hf_av_new= ReadAdc(ADC_CHAN_HF); + // see if there's a significant change + if(abs(hf_av - hf_av_new) > 10) + { + DbpString("HF 13.56 Field Change:"); + DbpIntegers(hf_av,hf_av_new,hf_count); + hf_av= hf_av_new; + if (hf_av > hf_max) + hf_max = hf_av; + hf_count= 0; } } } - } - DbpString("simulate tag (now type bitsamples)"); } void UsbPacketReceived(BYTE *packet, int len) @@ -770,10 +527,6 @@ void UsbPacketReceived(BYTE *packet, int len) ModThenAcquireRawAdcSamples125k(c->ext1,c->ext2,c->ext3,c->d.asBytes); break; - case CMD_ACQUIRE_RAW_BITS_TI_TYPE: - AcquireRawBitsTI(); - break; - case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693: AcquireRawAdcSamplesIso15693(); break; @@ -844,6 +597,18 @@ void UsbPacketReceived(BYTE *packet, int len) LED_D_OFF(); // LED D indicates field ON or OFF break; + case CMD_ACQUIRE_RAW_BITS_TI_TYPE: + AcquireRawBitsTI(); + break; + + case CMD_READ_TI_TYPE: + ReadTItag(); + break; + + case CMD_WRITE_TI_TYPE: + WriteTItag(c->ext1,c->ext2,c->ext3); + break; + case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: case CMD_DOWNLOAD_RAW_BITS_TI_TYPE: { UsbCommand n; @@ -883,7 +648,7 @@ void UsbPacketReceived(BYTE *packet, int len) LCDSend(c->ext1); break; #endif - case CMD_SETUP_WRITE: + case CMD_SETUP_WRITE: case CMD_FINISH_WRITE: case CMD_HARDWARE_RESET: USB_D_PLUS_PULLUP_OFF(); @@ -902,17 +667,6 @@ void UsbPacketReceived(BYTE *packet, int len) } } -void ReadMem(int addr) -{ - const DWORD *data = ((DWORD *)addr); - int i; - - DbpString("Reading memory at address"); - DbpIntegers(0, 0, addr); - for (i = 0; i < 8; i+= 2) - DbpIntegers(0, data[i], data[i+1]); -} - void AppMain(void) { memset(BigBuf,0,sizeof(BigBuf)); @@ -976,282 +730,3 @@ void AppMain(void) SamyRun(); } } - - -// samy's sniff and repeat routine -void SamyRun() -{ - DbpString("Stand-alone mode! No PC necessary."); - - // 3 possible options? no just 2 for now -#define OPTS 2 - - int high[OPTS], low[OPTS]; - - // Oooh pretty -- notify user we're in elite samy mode now - LED(LED_RED, 200); - LED(LED_ORANGE, 200); - LED(LED_GREEN, 200); - LED(LED_ORANGE, 200); - LED(LED_RED, 200); - LED(LED_ORANGE, 200); - LED(LED_GREEN, 200); - LED(LED_ORANGE, 200); - LED(LED_RED, 200); - - int selected = 0; - int playing = 0; - - // Turn on selected LED - LED(selected + 1, 0); - - for (;;) - { - usbattached = UsbPoll(FALSE); - WDT_HIT(); - - // Was our button held down or pressed? - int button_pressed = BUTTON_HELD(1000); - SpinDelay(300); - - // Button was held for a second, begin recording - if (button_pressed > 0) - { - LEDsoff(); - LED(selected + 1, 0); - LED(LED_RED2, 0); - - // record - DbpString("Starting recording"); - - // wait for button to be released - while(BUTTON_PRESS()) - WDT_HIT(); - - /* need this delay to prevent catching some weird data */ - SpinDelay(500); - - CmdHIDdemodFSK(1, &high[selected], &low[selected], 0); - DbpString("Recorded"); - DbpIntegers(selected, high[selected], low[selected]); - - LEDsoff(); - LED(selected + 1, 0); - // Finished recording - - // If we were previously playing, set playing off - // so next button push begins playing what we recorded - playing = 0; - } - - // Change where to record (or begin playing) - else if (button_pressed) - { - // Next option if we were previously playing - if (playing) - selected = (selected + 1) % OPTS; - playing = !playing; - - LEDsoff(); - LED(selected + 1, 0); - - // Begin transmitting - if (playing) - { - LED(LED_GREEN, 0); - DbpString("Playing"); - // wait for button to be released - while(BUTTON_PRESS()) - WDT_HIT(); - DbpIntegers(selected, high[selected], low[selected]); - CmdHIDsimTAG(high[selected], low[selected], 0); - DbpString("Done playing"); - if (BUTTON_HELD(1000) > 0) - { - DbpString("Exiting"); - LEDsoff(); - return; - } - - /* We pressed a button so ignore it here with a delay */ - SpinDelay(300); - - // when done, we're done playing, move to next option - selected = (selected + 1) % OPTS; - playing = !playing; - LEDsoff(); - LED(selected + 1, 0); - } - else - while(BUTTON_PRESS()) - WDT_HIT(); - } - } -} - - -/* -OBJECTIVE -Listen and detect an external reader. Determine the best location -for the antenna. - -INSTRUCTIONS: -Inside the ListenReaderField() function, there is two mode. -By default, when you call the function, you will enter mode 1. -If you press the PM3 button one time, you will enter mode 2. -If you press the PM3 button a second time, you will exit the function. - -DESCRIPTION OF MODE 1: -This mode just listens for an external reader field and lights up green -for HF and/or red for LF. This is the original mode of the detectreader -function. - -DESCRIPTION OF MODE 2: -This mode will visually represent, using the LEDs, the actual strength of the -current compared to the maximum current detected. Basically, once you know -what kind of external reader is present, it will help you spot the best location to place -your antenna. You will probably not get some good results if there is a LF and a HF reader -at the same place! :-) - -LIGHT SCHEME USED: - -Light scheme | Descriptiong ----------------------------------------------------- - ---- | No field detected - X--- | 14% of maximum current detected - -X-- | 29% of maximum current detected - --X- | 43% of maximum current detected - ---X | 57% of maximum current detected - --XX | 71% of maximum current detected - -XXX | 86% of maximum current detected - XXXX | 100% of maximum current detected - -TODO: -Add the LF part for MODE 2 - -*/ -void ListenReaderField(int limit) -{ - int lf_av, lf_av_new, lf_baseline= 0, lf_count= 0; - int hf_av, hf_av_new, hf_baseline= 0, hf_count= 0, hf_max; - int mode=1; - -#define LF_ONLY 1 -#define HF_ONLY 2 - - LED_A_OFF(); - LED_B_OFF(); - LED_C_OFF(); - LED_D_OFF(); - - lf_av= ReadAdc(ADC_CHAN_LF); - - if(limit != HF_ONLY) - { - DbpString("LF 125/134 Baseline:"); - DbpIntegers(lf_av,0,0); - lf_baseline= lf_av; - } - - hf_av=hf_max=ReadAdc(ADC_CHAN_HF); - - if (limit != LF_ONLY) - { - DbpString("HF 13.56 Baseline:"); - DbpIntegers(hf_av,0,0); - hf_baseline= hf_av; - } - - for(;;) - { - if (BUTTON_PRESS()) { - SpinDelay(500); - switch (mode) { - case 1: - mode=2; - DbpString("Signal Strength Mode"); - break; - case 2: - default: - DbpString("Stopped"); - LED_A_OFF(); - LED_B_OFF(); - LED_C_OFF(); - LED_D_OFF(); - return; - break; - } - } - WDT_HIT(); - - if (limit != HF_ONLY) - { - if (abs(lf_av - lf_baseline) > 10) - LED_D_ON(); - else - LED_D_OFF(); - ++lf_count; - lf_av_new= ReadAdc(ADC_CHAN_LF); - // see if there's a significant change - if(abs(lf_av - lf_av_new) > 10) - { - DbpString("LF 125/134 Field Change:"); - DbpIntegers(lf_av,lf_av_new,lf_count); - lf_av= lf_av_new; - lf_count= 0; - } - } - - if (limit != LF_ONLY) - { - if (abs(hf_av - hf_baseline) > 10) { - if (mode == 1) - LED_B_ON(); - if (mode == 2) { - if ( hf_av>(hf_max/7)*6) { - LED_A_ON(); LED_B_ON(); LED_C_ON(); LED_D_ON(); - } - if ( (hf_av>(hf_max/7)*5) && (hf_av<=(hf_max/7)*6) ) { - LED_A_ON(); LED_B_ON(); LED_C_OFF(); LED_D_ON(); - } - if ( (hf_av>(hf_max/7)*4) && (hf_av<=(hf_max/7)*5) ) { - LED_A_OFF(); LED_B_ON(); LED_C_OFF(); LED_D_ON(); - } - if ( (hf_av>(hf_max/7)*3) && (hf_av<=(hf_max/7)*4) ) { - LED_A_OFF(); LED_B_OFF(); LED_C_OFF(); LED_D_ON(); - } - if ( (hf_av>(hf_max/7)*2) && (hf_av<=(hf_max/7)*3) ) { - LED_A_OFF(); LED_B_ON(); LED_C_OFF(); LED_D_OFF(); - } - if ( (hf_av>(hf_max/7)*1) && (hf_av<=(hf_max/7)*2) ) { - LED_A_ON(); LED_B_OFF(); LED_C_OFF(); LED_D_OFF(); - } - if ( (hf_av>(hf_max/7)*0) && (hf_av<=(hf_max/7)*1) ) { - LED_A_OFF(); LED_B_OFF(); LED_C_ON(); LED_D_OFF(); - } - } - } else { - if (mode == 1) { - LED_B_OFF(); - } - if (mode == 2) { - LED_A_OFF(); LED_B_OFF(); LED_C_OFF(); LED_D_OFF(); - } - } - - ++hf_count; - hf_av_new= ReadAdc(ADC_CHAN_HF); - // see if there's a significant change - if(abs(hf_av - hf_av_new) > 10) - { - DbpString("HF 13.56 Field Change:"); - DbpIntegers(hf_av,hf_av_new,hf_count); - hf_av= hf_av_new; - if (hf_av > hf_max) - hf_max = hf_av; - hf_count= 0; - } - } - } -} - diff --git a/armsrc/apps.h b/armsrc/apps.h index 3fdb6169..11084ad7 100644 --- a/armsrc/apps.h +++ b/armsrc/apps.h @@ -7,7 +7,11 @@ #ifndef __APPS_H #define __APPS_H -/// appmain.c +// The large multi-purpose buffer, typically used to hold A/D samples, +// maybe processed in some way. +DWORD BigBuf[16000]; + +/// appmain.h void ReadMem(int addr); void AppMain(void); void SamyRun(void); @@ -22,7 +26,7 @@ extern int ToSendMax; extern BYTE ToSend[]; extern DWORD BigBuf[]; -/// fpga.c +/// fpga.h void FpgaSendCommand(WORD cmd, WORD v); void FpgaWriteConfWord(BYTE v); void FpgaDownloadAndGo(void); @@ -58,6 +62,18 @@ void SetAdcMuxFor(int whichGpio); #define FPGA_HF_ISO14443A_READER_LISTEN (3<<0) #define FPGA_HF_ISO14443A_READER_MOD (4<<0) +/// lfops.h +void AcquireRawAdcSamples125k(BOOL at134khz); +void DoAcquisition125k(BOOL at134khz); +void ModThenAcquireRawAdcSamples125k(int delay_off,int period_0,int period_1,BYTE *command); +void ReadTItag(); +void WriteTItag(DWORD idhi, DWORD idlo, WORD crc); +void AcquireTiType(void); +void AcquireRawBitsTI(void); +void SimulateTagLowFrequency(int period, int ledcontrol); +void CmdHIDsimTAG(int hi, int lo, int ledcontrol); +void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol); + /// iso14443.h void SimulateIso14443Tag(void); void AcquireRawAdcSamplesIso14443(DWORD parameter); diff --git a/armsrc/lfops.c b/armsrc/lfops.c new file mode 100644 index 00000000..9fe60de8 --- /dev/null +++ b/armsrc/lfops.c @@ -0,0 +1,654 @@ +//----------------------------------------------------------------------------- +// Miscellaneous routines for low frequency tag operations. +// Tags supported here so far are Texas Instruments (TI), HID +// Also routines for raw mode reading/simulating of LF waveform +// +//----------------------------------------------------------------------------- +#include +#include "apps.h" +#include "../common/crc16.c" + +void AcquireRawAdcSamples125k(BOOL at134khz) +{ + if(at134khz) { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } else { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } + + // 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(); + + // Now call the acquisition routine + DoAcquisition125k(at134khz); +} + +// split into two routines so we can avoid timing issues after sending commands // +void DoAcquisition125k(BOOL at134khz) +{ + BYTE *dest = (BYTE *)BigBuf; + int n = sizeof(BigBuf); + int i; + + memset(dest,0,n); + i = 0; + for(;;) { + if(SSC_STATUS & (SSC_STATUS_TX_READY)) { + SSC_TRANSMIT_HOLDING = 0x43; + LED_D_ON(); + } + if(SSC_STATUS & (SSC_STATUS_RX_READY)) { + dest[i] = (BYTE)SSC_RECEIVE_HOLDING; + i++; + LED_D_OFF(); + if(i >= n) { + break; + } + } + } + DbpIntegers(dest[0], dest[1], at134khz); +} + +void ModThenAcquireRawAdcSamples125k(int delay_off,int period_0,int period_1,BYTE *command) +{ + BOOL at134khz; + + // see if 'h' was specified + if(command[strlen((char *) command) - 1] == 'h') + at134khz= TRUE; + else + at134khz= FALSE; + + if(at134khz) { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } else { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } + + // 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(); + + // now modulate the reader field + while(*command != '\0' && *command != ' ') + { + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LED_D_OFF(); + SpinDelayUs(delay_off); + if(at134khz) { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } else { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } + LED_D_ON(); + if(*(command++) == '0') + SpinDelayUs(period_0); + else + SpinDelayUs(period_1); + } + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + LED_D_OFF(); + SpinDelayUs(delay_off); + if(at134khz) { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } else { + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + } + + // now do the read + DoAcquisition125k(at134khz); +} + +void AcquireTiType(void) +{ + int i; + // tag transmission is <20ms, sampling at 2M gives us 40K samples max + // each sample is 1 bit stuffed into a DWORD so we need 1250 DWORDS + int n = 1250; + + // clear buffer + memset(BigBuf,0,sizeof(BigBuf)); + + // Set up the synchronous serial port + PIO_DISABLE = (1<= n) return; + } + WDT_HIT(); + } + + // return stolen pin to SSP + PIO_DISABLE = (1<>8)&0xff); + crc = update_crc16(crc, (idlo>>16)&0xff); + crc = update_crc16(crc, (idlo>>24)&0xff); + crc = update_crc16(crc, (idhi)&0xff); + crc = update_crc16(crc, (idhi>>8)&0xff); + crc = update_crc16(crc, (idhi>>16)&0xff); + crc = update_crc16(crc, (idhi>>24)&0xff); + } + DbpString("Writing the following data to tag:"); + DbpIntegers(idhi, idlo, crc); + + // TI tags charge at 134.2Khz + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz + // Place FPGA in passthrough mode, in this mode the CROSS_LO line + // connects to SSP_DIN and the SSP_DOUT logic level controls + // whether we're modulating the antenna (high) + // or listening to the antenna (low) + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_PASSTHRU); + LED_A_ON(); + + // steal this pin from the SSP and use it to control the modulation + PIO_ENABLE = (1<>8 )&0xff ); + WriteTIbyte( (idlo>>16)&0xff ); + WriteTIbyte( (idlo>>24)&0xff ); + WriteTIbyte( (idhi )&0xff ); + WriteTIbyte( (idhi>>8 )&0xff ); + WriteTIbyte( (idhi>>16)&0xff ); + WriteTIbyte( (idhi>>24)&0xff ); // data hi to lo + WriteTIbyte( (crc )&0xff ); // crc lo + WriteTIbyte( (crc>>8 )&0xff ); // crc hi + WriteTIbyte(0x00); // write frame lo + WriteTIbyte(0x03); // write frame hi + PIO_OUTPUT_DATA_SET = (1<0xFFF) { + DbpString("Tags can only have 44 bits."); + return; + } + fc(0,&n); + // special start of frame marker containing invalid bit sequences + fc(8, &n); fc(8, &n); // invalid + fc(8, &n); fc(10, &n); // logical 0 + fc(10, &n); fc(10, &n); // invalid + fc(8, &n); fc(10, &n); // logical 0 + + WDT_HIT(); + // manchester encode bits 43 to 32 + for (i=11; i>=0; i--) { + if ((i%4)==3) fc(0,&n); + if ((hi>>i)&1) { + fc(10, &n); fc(8, &n); // low-high transition + } else { + fc(8, &n); fc(10, &n); // high-low transition + } + } + + WDT_HIT(); + // manchester encode bits 31 to 0 + for (i=31; i>=0; i--) { + if ((i%4)==3) fc(0,&n); + if ((lo>>i)&1) { + fc(10, &n); fc(8, &n); // low-high transition + } else { + fc(8, &n); fc(10, &n); // high-low transition + } + } + + if (ledcontrol) + LED_A_ON(); + SimulateTagLowFrequency(n, ledcontrol); + + if (ledcontrol) + LED_A_OFF(); +} + + +// loop to capture raw HID waveform then FSK demodulate the TAG ID from it +void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol) +{ + BYTE *dest = (BYTE *)BigBuf; + int m=0, n=0, i=0, idx=0, found=0, lastval=0; + DWORD hi=0, lo=0; + + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER); + + // 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(); + + for(;;) { + WDT_HIT(); + if (ledcontrol) + LED_A_ON(); + if(BUTTON_PRESS()) { + DbpString("Stopped"); + if (ledcontrol) + LED_A_OFF(); + return; + } + + i = 0; + m = sizeof(BigBuf); + memset(dest,128,m); + for(;;) { + if(SSC_STATUS & (SSC_STATUS_TX_READY)) { + SSC_TRANSMIT_HOLDING = 0x43; + if (ledcontrol) + LED_D_ON(); + } + if(SSC_STATUS & (SSC_STATUS_RX_READY)) { + dest[i] = (BYTE)SSC_RECEIVE_HOLDING; + // we don't care about actual value, only if it's more or less than a + // threshold essentially we capture zero crossings for later analysis + if(dest[i] < 127) dest[i] = 0; else dest[i] = 1; + i++; + if (ledcontrol) + LED_D_OFF(); + if(i >= m) { + break; + } + } + } + + // FSK demodulator + + // sync to first lo-hi transition + for( idx=1; idx>1)&0xffff); + /* if we're only looking for one tag */ + if (findone) + { + *high = hi; + *low = lo; + return; + } + hi=0; + lo=0; + found=0; + } + } + if (found) { + if (dest[idx] && (!dest[idx+1]) ) { + hi=(hi<<1)|(lo>>31); + lo=(lo<<1)|0; + } else if ( (!dest[idx]) && dest[idx+1]) { + hi=(hi<<1)|(lo>>31); + lo=(lo<<1)|1; + } else { + found=0; + hi=0; + lo=0; + } + idx++; + } + if ( dest[idx] && dest[idx+1] && dest[idx+2] && (!dest[idx+3]) && (!dest[idx+4]) && (!dest[idx+5]) ) + { + found=1; + idx+=6; + if (found && (hi|lo)) { + DbpString("TAG ID"); + DbpIntegers(hi, lo, (lo>>1)&0xffff); + /* if we're only looking for one tag */ + if (findone) + { + *high = hi; + *low = lo; + return; + } + hi=0; + lo=0; + found=0; + } + } + } + WDT_HIT(); + } +} diff --git a/common/crc16.c b/common/crc16.c index 6cdf3ea3..1497ecf6 100644 --- a/common/crc16.c +++ b/common/crc16.c @@ -1,4 +1,4 @@ -unsigned short update_crc16( WORD crc, BYTE c ) { +WORD update_crc16( WORD crc, BYTE c ) { WORD i, v, tcrc = 0; v = (crc ^ c) & 0xff; @@ -7,5 +7,5 @@ unsigned short update_crc16( WORD crc, BYTE c ) { v >>= 1; } - return (crc >> 8) ^ tcrc; + return ((crc >> 8) ^ tcrc)&0xffff; } diff --git a/include/usb_cmd.h b/include/usb_cmd.h index dff02a33..8245bae2 100644 --- a/include/usb_cmd.h +++ b/include/usb_cmd.h @@ -20,60 +20,59 @@ typedef struct { } UsbCommand; // For the bootloader -#define CMD_DEVICE_INFO 0x0000 -#define CMD_SETUP_WRITE 0x0001 -#define CMD_FINISH_WRITE 0x0003 -#define CMD_HARDWARE_RESET 0x0004 -#define CMD_START_FLASH 0x0005 -#define CMD_ACK 0x00ff +#define CMD_DEVICE_INFO 0x0000 +#define CMD_SETUP_WRITE 0x0001 +#define CMD_FINISH_WRITE 0x0003 +#define CMD_HARDWARE_RESET 0x0004 +#define CMD_START_FLASH 0x0005 +#define CMD_ACK 0x00ff // For general mucking around -#define CMD_DEBUG_PRINT_STRING 0x0100 -#define CMD_DEBUG_PRINT_INTEGERS 0x0101 -#define CMD_DEBUG_PRINT_BYTES 0x0102 -#define CMD_LCD_RESET 0x0103 -#define CMD_LCD 0x0104 -#define CMD_BUFF_CLEAR 0x0105 -#define CMD_READ_MEM 0x0106 +#define CMD_DEBUG_PRINT_STRING 0x0100 +#define CMD_DEBUG_PRINT_INTEGERS 0x0101 +#define CMD_DEBUG_PRINT_BYTES 0x0102 +#define CMD_LCD_RESET 0x0103 +#define CMD_LCD 0x0104 +#define CMD_BUFF_CLEAR 0x0105 +#define CMD_READ_MEM 0x0106 // For low-frequency tags -#define CMD_ACQUIRE_RAW_BITS_TI_TYPE 0x0200 -#define CMD_DOWNLOAD_RAW_BITS_TI_TYPE 0x0201 -#define CMD_DOWNLOADED_RAW_BITS_TI_TYPE 0x0202 -#define CMD_ACQUIRE_RAW_ADC_SAMPLES_125K 0x0203 -#define CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K 0x0204 -#define CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K 0x0205 -#define CMD_DOWNLOADED_SIM_SAMPLES_125K 0x0206 -#define CMD_SIMULATE_TAG_125K 0x0207 -#define CMD_HID_DEMOD_FSK 0x0208 // ## New command: demodulate HID tag ID -#define CMD_HID_SIM_TAG 0x0209 // ## New command: simulate HID tag by ID -#define CMD_SET_LF_DIVISOR 0x020A -#define CMD_SWEEP_LF 0x020B -#define CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K 0x020C +#define CMD_ACQUIRE_RAW_BITS_TI_TYPE 0x0200 +#define CMD_DOWNLOAD_RAW_BITS_TI_TYPE 0x0201 +#define CMD_READ_TI_TYPE 0x0202 +#define CMD_WRITE_TI_TYPE 0x0203 +#define CMD_DOWNLOADED_RAW_BITS_TI_TYPE 0x0204 +#define CMD_ACQUIRE_RAW_ADC_SAMPLES_125K 0x0205 +#define CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K 0x0206 +#define CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K 0x0207 +#define CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K 0x0208 +#define CMD_DOWNLOADED_SIM_SAMPLES_125K 0x0209 +#define CMD_SIMULATE_TAG_125K 0x020A +#define CMD_HID_DEMOD_FSK 0x020B +#define CMD_HID_SIM_TAG 0x020C +#define CMD_SET_LF_DIVISOR 0x020D // For the 13.56 MHz tags -#define CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693 0x0300 -#define CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443 0x0301 -#define CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443_SIM 0x0302 -#define CMD_READ_SRI512_TAG 0x0303 -#define CMD_READER_ISO_15693 0x0310 // ## New command to act like a 15693 reader - greg -#define CMD_SIMTAG_ISO_15693 0x0311 // ## New command to act like a 15693 reader - greg - -#define CMD_SIMULATE_TAG_HF_LISTEN 0x0380 -#define CMD_SIMULATE_TAG_ISO_14443 0x0381 -#define CMD_SNOOP_ISO_14443 0x0382 -#define CMD_SNOOP_ISO_14443a 0x0383 // ## New snoop command -#define CMD_SIMULATE_TAG_ISO_14443a 0x0384 // ## New command: Simulate tag 14443a -#define CMD_READER_ISO_14443a 0x0385 // ## New command to act like a 14443a reader -#define CMD_SIMULATE_MIFARE_CARD 0x0386 +#define CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693 0x0300 +#define CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443 0x0301 +#define CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443_SIM 0x0302 +#define CMD_READ_SRI512_TAG 0x0303 +#define CMD_READER_ISO_15693 0x0310 +#define CMD_SIMTAG_ISO_15693 0x0311 +#define CMD_SIMULATE_TAG_HF_LISTEN 0x0380 +#define CMD_SIMULATE_TAG_ISO_14443 0x0381 +#define CMD_SNOOP_ISO_14443 0x0382 +#define CMD_SNOOP_ISO_14443a 0x0383 +#define CMD_SIMULATE_TAG_ISO_14443a 0x0384 +#define CMD_READER_ISO_14443a 0x0385 +#define CMD_SIMULATE_MIFARE_CARD 0x0386 // For measurements of the antenna tuning -#define CMD_MEASURE_ANTENNA_TUNING 0x0400 -#define CMD_MEASURED_ANTENNA_TUNING 0x0401 -#define CMD_LISTEN_READER_FIELD 0x0402 +#define CMD_MEASURE_ANTENNA_TUNING 0x0400 +#define CMD_MEASURED_ANTENNA_TUNING 0x0401 +#define CMD_LISTEN_READER_FIELD 0x0402 // For direct FPGA control -#define CMD_FPGA_MAJOR_MODE_OFF 0x0500 // ## FPGA Control -#define CMD_TEST 0x0501 +#define CMD_FPGA_MAJOR_MODE_OFF 0x0500 #endif diff --git a/winsrc/command.cpp b/winsrc/command.cpp index 4ac807d9..5af6c709 100644 --- a/winsrc/command.cpp +++ b/winsrc/command.cpp @@ -1395,14 +1395,14 @@ static void CmdHi15demod(char *str) PrintToScrollback("CRC=%04x", Iso15693Crc(outBuf, k-2)); } -static void CmdTiread(char *str) +static void CmdTIReadRaw(char *str) { UsbCommand c; c.cmd = CMD_ACQUIRE_RAW_BITS_TI_TYPE; SendCommand(&c, FALSE); } -static void CmdTibits(char *str) +static void CmdTIBits(char *str) { int cnt = 0; int i; @@ -1554,7 +1554,30 @@ static void CmdFSKdemod(char *cmdline) PrintToScrollback("hex: %08x %08x", hi, lo); } -static void CmdTidemod(char *cmdline) +// read a TI tag and return its ID +static void CmdTIRead(char *str) +{ + UsbCommand c; + c.cmd = CMD_READ_TI_TYPE; + SendCommand(&c, FALSE); +} + +// write new data to a r/w TI tag +static void CmdTIWrite(char *str) +{ + UsbCommand c; + int res=0; + + c.cmd = CMD_WRITE_TI_TYPE; + res = sscanf(str, "0x%x 0x%x 0x%x ", &c.ext1, &c.ext2, &c.ext3); + if (res == 2) c.ext3=0; + if (res<2) + PrintToScrollback("Please specify 2 or three hex strings, eg 0x1234 0x5678"); + else + SendCommand(&c, FALSE); +} + +static void CmdTIDemod(char *cmdline) { /* MATLAB as follows: f_s = 2000000; % sampling frequency @@ -1754,9 +1777,13 @@ h = sign(sin(cumsum(h))); // align 16 bit "end bits" or "ident" into lower half of shift3 shift3 >>= 16; - if ( (shift3^shift0)&0xffff ) { + // only 15 bits compare, last bit of ident is not valid + if ( (shift3^shift0)&0x7fff ) { PrintToScrollback("Error: Ident mismatch!"); } + // WARNING the order of the bytes in which we calc crc below needs checking + // i'm 99% sure the crc algorithm is correct, but it may need to eat the + // bytes in reverse or something // calculate CRC crc=0; crc = update_crc16(crc, (shift0)&0xff); @@ -2841,9 +2868,11 @@ static struct { {"scale", CmdScale, 1, " -- Set cursor display scale"}, {"setlfdivisor", CmdSetDivisor, 0, "<19 - 255> -- Drive LF antenna at 12Mhz/(divisor+1)"}, {"sri512read", CmdSri512read, 0, " -- Read contents of a SRI512 tag"}, - {"tibits", CmdTibits, 0, "Get raw bits for TI-type LF tag"}, - {"tidemod", CmdTidemod, 1, "Demodulate raw bits for TI-type LF tag"}, - {"tiread", CmdTiread, 0, "Read a TI-type 134 kHz tag"}, + {"tibits", CmdTIBits, 0, "Get raw bits for TI-type LF tag"}, + {"tidemod", CmdTIDemod, 1, "Demodulate raw bits for TI-type LF tag"}, + {"tireadraw", CmdTIReadRaw, 0, "Read a TI-type 134 kHz tag in raw mode"}, + {"tiread", CmdTIRead, 0, "Read and decode a TI 134 kHz tag"}, + {"tiwrite", CmdTIWrite, 0, "Write new data to a r/w TI 134 kHz tag"}, {"threshold", CmdThreshold, 1, "Maximize/minimize every value in the graph window depending on threshold"}, {"tune", CmdTune, 0, "Measure antenna tuning"}, {"vchdemod", CmdVchdemod, 0, "['clone'] -- Demodulate samples for VeriChip"}, -- 2.39.2