]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/lfops.c
FIX: a suggested fix for #136 where the "lf t55x7 read" command when called with...
[proxmark3-svn] / armsrc / lfops.c
index 7e53d4a566173d97301f9e56ee1e5ad01a1ca15e..31fe4ca970db134dcb8f884dfeb77f9d47a68370 100644 (file)
@@ -73,8 +73,6 @@ void ModThenAcquireRawAdcSamples125k(int delay_off, int period_0, int period_1,
        DoAcquisition_config(false);
 }
 
-
-
 /* blank r/w tag data stream
 ...0000000000000000 01111111
 1010101010101010101010101010101010101010101010101010101010101010
@@ -90,9 +88,9 @@ 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
      #define FSAMPLE 2000000
      #define FREQLO 123200
      #define FREQHI 134200
 
        signed char *dest = (signed char *)BigBuf_get_addr();
        uint16_t n = BigBuf_max_traceLen();
@@ -379,7 +377,7 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
        AcquireTiType();
 
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       DbpString("Now use tiread to check");
+       DbpString("Now use 'lf ti read' to check");
 }
 
 void SimulateTagLowFrequency(int period, int gap, int ledcontrol)
@@ -402,7 +400,7 @@ void SimulateTagLowFrequency(int period, int gap, int ledcontrol)
        for(;;) {
                //wait until SSC_CLK goes HIGH
                while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {
-                       if(BUTTON_PRESS() || usb_poll()) {
+                       if(BUTTON_PRESS() || (usb_poll_validate_length() )) {
                                DbpString("Stopped");
                                return;
                        }
@@ -756,13 +754,13 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 {
        uint8_t *dest = BigBuf_get_addr();
        //const size_t sizeOfBigBuff = BigBuf_max_traceLen();
-       size_t size; 
+       size_t size = 0
        uint32_t hi2=0, hi=0, lo=0;
        int idx=0;
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 
-       while(!BUTTON_PRESS()) {
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {
 
                WDT_HIT();
                if (ledcontrol) LED_A_ON();
@@ -841,6 +839,96 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
        if (ledcontrol) LED_A_OFF();
 }
 
+// loop to get raw HID waveform then FSK demodulate the TAG ID from it
+void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
+{
+       uint8_t *dest = BigBuf_get_addr();
+       //const size_t sizeOfBigBuff = BigBuf_max_traceLen();
+       size_t size; 
+       int idx=0;
+       // Configure to go in 125Khz listen mode
+       LFSetupFPGAForADC(95, true);
+
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {
+
+               WDT_HIT();
+               if (ledcontrol) LED_A_ON();
+
+               DoAcquisition_default(-1,true);
+               // FSK demodulator
+               //size = sizeOfBigBuff;  //variable size will change after demod so re initialize it before use
+               size = 50*128*2; //big enough to catch 2 sequences of largest format
+               idx = AWIDdemodFSK(dest, &size);
+               
+               if (idx>0 && size==96){
+               // Index map
+               // 0            10            20            30              40            50              60
+               // |            |             |             |               |             |               |
+               // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96
+               // -----------------------------------------------------------------------------
+               // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
+               // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96
+               //          |---26 bit---|    |-----117----||-------------142-------------|
+               // b = format bit len, o = odd parity of last 3 bits
+               // f = facility code, c = card number
+               // w = wiegand parity
+               // (26 bit format shown)
+
+               //get raw ID before removing parities
+               uint32_t rawLo = bytebits_to_byte(dest+idx+64,32);
+               uint32_t rawHi = bytebits_to_byte(dest+idx+32,32);
+               uint32_t rawHi2 = bytebits_to_byte(dest+idx,32);
+
+               size = removeParity(dest, idx+8, 4, 1, 88);
+               // ok valid card found!
+
+               // Index map
+               // 0           10         20        30          40        50        60
+               // |           |          |         |           |         |         |
+               // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
+               // -----------------------------------------------------------------------------
+               // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
+               // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+               // |26 bit|   |-117--| |-----142------|
+               // b = format bit len, o = odd parity of last 3 bits
+               // f = facility code, c = card number
+               // w = wiegand parity
+               // (26 bit format shown)
+
+               uint32_t fc = 0;
+               uint32_t cardnum = 0;
+               uint32_t code1 = 0;
+               uint32_t code2 = 0;
+               uint8_t fmtLen = bytebits_to_byte(dest,8);
+               if (fmtLen==26){
+                       fc = bytebits_to_byte(dest+9, 8);
+                       cardnum = bytebits_to_byte(dest+17, 16);
+                       code1 = bytebits_to_byte(dest+8,fmtLen);
+                       Dbprintf("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+               } else {
+                       cardnum = bytebits_to_byte(dest+8+(fmtLen-17), 16);
+                       if (fmtLen>32){
+                        code1 = bytebits_to_byte(dest+8,fmtLen-32);
+                        code2 = bytebits_to_byte(dest+8+(fmtLen-32),32);
+                        Dbprintf("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+                } else{
+                        code1 = bytebits_to_byte(dest+8,fmtLen);
+                        Dbprintf("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+                }
+                       }
+                       if (findone){
+                               if (ledcontrol) LED_A_OFF();
+                               return;
+                       }
+                       // reset
+               }
+               idx = 0;
+               WDT_HIT();
+       }
+       DbpString("Stopped");
+       if (ledcontrol) LED_A_OFF();
+}
+
 void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 {
        uint8_t *dest = BigBuf_get_addr();
@@ -852,7 +940,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 
-       while(!BUTTON_PRESS()) {
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {
 
                WDT_HIT();
                if (ledcontrol) LED_A_ON();
@@ -866,24 +954,24 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 
                if (errCnt<0) continue;
        
-               errCnt = Em410xDecode(dest, &size, &idx, &hi, &lo);
-               if (errCnt){
-                       if (size>64){
-                               Dbprintf("EM XL TAG ID: %06x%08x%08x - (%05d_%03d_%08d)",
-                                 hi,
-                                 (uint32_t)(lo>>32),
-                                 (uint32_t)lo,
-                                 (uint32_t)(lo&0xFFFF),
-                                 (uint32_t)((lo>>16LL) & 0xFF),
-                                 (uint32_t)(lo & 0xFFFFFF));
-                       } else {
-                               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));
-                       }
+                       errCnt = Em410xDecode(dest, &size, &idx, &hi, &lo);
+                       if (errCnt){
+                               if (size>64){
+                                       Dbprintf("EM XL TAG ID: %06x%08x%08x - (%05d_%03d_%08d)",
+                                         hi,
+                                         (uint32_t)(lo>>32),
+                                         (uint32_t)lo,
+                                         (uint32_t)(lo&0xFFFF),
+                                         (uint32_t)((lo>>16LL) & 0xFF),
+                                         (uint32_t)(lo & 0xFFFFFF));
+                               } else {
+                                       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();
@@ -908,10 +996,12 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
        uint8_t version=0;
        uint8_t facilitycode=0;
        uint16_t number=0;
+       uint8_t crc = 0;
+       uint16_t calccrc = 0;
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 
-       while(!BUTTON_PRESS()) {
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {
                WDT_HIT();
                if (ledcontrol) LED_A_ON();
                DoAcquisition_default(-1,true);
@@ -919,45 +1009,62 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
                WDT_HIT();
                idx = IOdemodFSK(dest, BigBuf_max_traceLen());
                if (idx<0) continue;
-               //valid tag found
-
-               //Index map
-               //0           10          20          30          40          50          60
-               //|           |           |           |           |           |           |
-               //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
-               //-----------------------------------------------------------------------------
-               //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
-               //
-               //XSF(version)facility:codeone+codetwo
-               //Handle the data
-               if(findone){ //only print binary if we are doing one
-                       Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx],   dest[idx+1],   dest[idx+2],dest[idx+3],dest[idx+4],dest[idx+5],dest[idx+6],dest[idx+7],dest[idx+8]);
-                       Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+9], dest[idx+10],dest[idx+11],dest[idx+12],dest[idx+13],dest[idx+14],dest[idx+15],dest[idx+16],dest[idx+17]);
-                       Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+18],dest[idx+19],dest[idx+20],dest[idx+21],dest[idx+22],dest[idx+23],dest[idx+24],dest[idx+25],dest[idx+26]);
-                       Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+27],dest[idx+28],dest[idx+29],dest[idx+30],dest[idx+31],dest[idx+32],dest[idx+33],dest[idx+34],dest[idx+35]);
-                       Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+36],dest[idx+37],dest[idx+38],dest[idx+39],dest[idx+40],dest[idx+41],dest[idx+42],dest[idx+43],dest[idx+44]);
-                       Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+45],dest[idx+46],dest[idx+47],dest[idx+48],dest[idx+49],dest[idx+50],dest[idx+51],dest[idx+52],dest[idx+53]);
-                       Dbprintf("%d%d%d%d%d%d%d%d %d%d",dest[idx+54],dest[idx+55],dest[idx+56],dest[idx+57],dest[idx+58],dest[idx+59],dest[idx+60],dest[idx+61],dest[idx+62],dest[idx+63]);
-               }
-               code = bytebits_to_byte(dest+idx,32);
-               code2 = bytebits_to_byte(dest+idx+32,32);
-               version = bytebits_to_byte(dest+idx+27,8); //14,4
+                       //valid tag found
+
+                       //Index map
+                       //0           10          20          30          40          50          60
+                       //|           |           |           |           |           |           |
+                       //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
+                       //-----------------------------------------------------------------------------
+            //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 checksum 11
+                       //
+                       //Checksum:  
+                       //00000000 0 11110000 1 11100000 1 00000001 1 00000011 1 10110110 1 01110101 11
+                       //preamble      F0         E0         01         03         B6         75
+                       // How to calc checksum,
+                       // http://www.proxmark.org/forum/viewtopic.php?id=364&p=6
+                       //   F0 + E0 + 01 + 03 + B6 = 28A
+                       //   28A & FF = 8A
+                       //   FF - 8A = 75
+                       // Checksum: 0x75
+                       //XSF(version)facility:codeone+codetwo
+                       //Handle the data
+                       if(findone){ //only print binary if we are doing one
+                               Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx],   dest[idx+1],   dest[idx+2],dest[idx+3],dest[idx+4],dest[idx+5],dest[idx+6],dest[idx+7],dest[idx+8]);
+                               Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+9], dest[idx+10],dest[idx+11],dest[idx+12],dest[idx+13],dest[idx+14],dest[idx+15],dest[idx+16],dest[idx+17]);
+                               Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+18],dest[idx+19],dest[idx+20],dest[idx+21],dest[idx+22],dest[idx+23],dest[idx+24],dest[idx+25],dest[idx+26]);
+                               Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+27],dest[idx+28],dest[idx+29],dest[idx+30],dest[idx+31],dest[idx+32],dest[idx+33],dest[idx+34],dest[idx+35]);
+                               Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+36],dest[idx+37],dest[idx+38],dest[idx+39],dest[idx+40],dest[idx+41],dest[idx+42],dest[idx+43],dest[idx+44]);
+                               Dbprintf("%d%d%d%d%d%d%d%d %d",dest[idx+45],dest[idx+46],dest[idx+47],dest[idx+48],dest[idx+49],dest[idx+50],dest[idx+51],dest[idx+52],dest[idx+53]);
+                               Dbprintf("%d%d%d%d%d%d%d%d %d%d",dest[idx+54],dest[idx+55],dest[idx+56],dest[idx+57],dest[idx+58],dest[idx+59],dest[idx+60],dest[idx+61],dest[idx+62],dest[idx+63]);
+                       }
+                       code = bytebits_to_byte(dest+idx,32);
+                       code2 = bytebits_to_byte(dest+idx+32,32);
+                       version = bytebits_to_byte(dest+idx+27,8); //14,4
                facilitycode = bytebits_to_byte(dest+idx+18,8);
-               number = (bytebits_to_byte(dest+idx+36,8)<<8)|(bytebits_to_byte(dest+idx+45,8)); //36,9
-
-               Dbprintf("XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2);
-               // if we're only looking for one tag
-               if (findone){
-                       if (ledcontrol) LED_A_OFF();
-                       //LED_A_OFF();
-                       *high=code;
-                       *low=code2;
-                       return;
-               }
-               code=code2=0;
-               version=facilitycode=0;
-               number=0;
-               idx=0;
+                       number = (bytebits_to_byte(dest+idx+36,8)<<8)|(bytebits_to_byte(dest+idx+45,8)); //36,9
+
+                       crc = bytebits_to_byte(dest+idx+54,8);
+                       for (uint8_t i=1; i<6; ++i)
+                               calccrc += bytebits_to_byte(dest+idx+9*i,8);
+                       calccrc &= 0xff;
+                       calccrc = 0xff - calccrc;
+                       
+                       char *crcStr = (crc == calccrc) ? "ok":"!crc";
+
+            Dbprintf("IO Prox XSF(%02d)%02x:%05d (%08x%08x)  [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr);
+                       // if we're only looking for one tag
+                       if (findone){
+                               if (ledcontrol) LED_A_OFF();
+                               //LED_A_OFF();
+                               *high=code;
+                               *low=code2;
+                               return;
+                       }
+                       code=code2=0;
+                       version=facilitycode=0;
+                       number=0;
+                       idx=0;
 
                WDT_HIT();
        }
@@ -971,14 +1078,14 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
  */
 
 /* T55x7 configuration register definitions */
-#define T55x7_POR_DELAY                        0x00000001
-#define T55x7_ST_TERMINATOR            0x00000008
-#define T55x7_PWD                      0x00000010
+#define T55x7_POR_DELAY                                0x00000001
+#define T55x7_ST_TERMINATOR                    0x00000008
+#define T55x7_PWD                                      0x00000010
 #define T55x7_MAXBLOCK_SHIFT           5
-#define T55x7_AOR                      0x00000200
-#define T55x7_PSKCF_RF_2               0
-#define T55x7_PSKCF_RF_4               0x00000400
-#define T55x7_PSKCF_RF_8               0x00000800
+#define T55x7_AOR                                      0x00000200
+#define T55x7_PSKCF_RF_2                       0
+#define T55x7_PSKCF_RF_4                       0x00000400
+#define T55x7_PSKCF_RF_8                       0x00000800
 #define T55x7_MODULATION_DIRECT                0
 #define T55x7_MODULATION_PSK1          0x00001000
 #define T55x7_MODULATION_PSK2          0x00002000
@@ -989,17 +1096,19 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 #define T55x7_MODULATION_FSK2a         0x00007000
 #define T55x7_MODULATION_MANCHESTER    0x00008000
 #define T55x7_MODULATION_BIPHASE       0x00010000
-#define T55x7_BITRATE_RF_8             0
-#define T55x7_BITRATE_RF_16            0x00040000
-#define T55x7_BITRATE_RF_32            0x00080000
-#define T55x7_BITRATE_RF_40            0x000C0000
-#define T55x7_BITRATE_RF_50            0x00100000
-#define T55x7_BITRATE_RF_64            0x00140000
+#define T55x7_MODULATION_DIPHASE       0x00018000
+//#define T55x7_MODULATION_BIPHASE57   0x00011000
+#define T55x7_BITRATE_RF_8                     0
+#define T55x7_BITRATE_RF_16                    0x00040000
+#define T55x7_BITRATE_RF_32                    0x00080000
+#define T55x7_BITRATE_RF_40                    0x000C0000
+#define T55x7_BITRATE_RF_50                    0x00100000
+#define T55x7_BITRATE_RF_64                    0x00140000
 #define T55x7_BITRATE_RF_100           0x00180000
 #define T55x7_BITRATE_RF_128           0x001C0000
 
 /* T5555 (Q5) configuration register definitions */
-#define T5555_ST_TERMINATOR            0x00000001
+#define T5555_ST_TERMINATOR                    0x00000001
 #define T5555_MAXBLOCK_SHIFT           0x00000001
 #define T5555_MODULATION_MANCHESTER    0
 #define T5555_MODULATION_PSK1          0x00000010
@@ -1009,35 +1118,46 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 #define T5555_MODULATION_FSK2          0x00000050
 #define T5555_MODULATION_BIPHASE       0x00000060
 #define T5555_MODULATION_DIRECT                0x00000070
-#define T5555_INVERT_OUTPUT            0x00000080
-#define T5555_PSK_RF_2                 0
-#define T5555_PSK_RF_4                 0x00000100
-#define T5555_PSK_RF_8                 0x00000200
-#define T5555_USE_PWD                  0x00000400
-#define T5555_USE_AOR                  0x00000800
-#define T5555_BITRATE_SHIFT            12
-#define T5555_FAST_WRITE               0x00004000
-#define T5555_PAGE_SELECT              0x00008000
+#define T5555_INVERT_OUTPUT                    0x00000080
+#define T5555_PSK_RF_2                         0
+#define T5555_PSK_RF_4                         0x00000100
+#define T5555_PSK_RF_8                         0x00000200
+#define T5555_USE_PWD                          0x00000400
+#define T5555_USE_AOR                          0x00000800
+#define T5555_BITRATE_SHIFT                    12
+#define T5555_FAST_WRITE                       0x00004000
+#define T5555_PAGE_SELECT                      0x00008000
 
 /*
  * Relevant times in microsecond
  * To compensate antenna falling times shorten the write times
  * and enlarge the gap ones.
+ * Q5 tags seems to have issues when these values changes. 
  */
-#define START_GAP 31*8 // was 250 // SPEC:  1*8 to 50*8 - typ 15*8 (or 15fc)
+
+#define START_GAP 50*8 // was 250 // SPEC:  1*8 to 50*8 - typ 15*8 (or 15fc)
 #define WRITE_GAP 20*8 // was 160 // SPEC:  1*8 to 20*8 - typ 10*8 (or 10fc)
-#define WRITE_0   18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc)
+#define WRITE_0   16*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc)
 #define WRITE_1   50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc)  432 for T55x7; 448 for E5550
 
-#define T55xx_SAMPLES_SIZE      12000 // 32 x 32 x 10  (32 bit times numofblock (7), times clock skip..)
+//  VALUES TAKEN FROM EM4x function: SendForward
+//  START_GAP = 440;       (55*8) cycles at 125Khz (8us = 1cycle)
+//  WRITE_GAP = 128;       (16*8)
+//  WRITE_1   = 256 32*8;  (32*8) 
+
+//  These timings work for 4469/4269/4305 (with the 55*8 above)
+//  WRITE_0 = 23*8 , 9*8  SpinDelayUs(23*8); 
+
+// Sam7s has several timers, we will use the source TIMER_CLOCK1 (aka AT91C_TC_CLKS_TIMER_DIV1_CLOCK)
+// TIMER_CLOCK1 = MCK/2, MCK is running at 48 MHz, Timer is running at 48/2 = 24 MHz
+// Hitag units (T0) have duration of 8 microseconds (us), which is 1/125000 per second (carrier)
+// T0 = TIMER_CLOCK1 / 125000 = 192
+// 1 Cycle = 8 microseconds(us)  == 1 field clock
 
 // Write one bit to card
-void T55xxWriteBit(int bit)
-{
-       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+void T55xxWriteBit(int bit) {
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-       if (bit == 0)
+       if (!bit)
                SpinDelayUs(WRITE_0);
        else
                SpinDelayUs(WRITE_1);
@@ -1046,147 +1166,123 @@ void T55xxWriteBit(int bit)
 }
 
 // Write one card block in page 0, no lock
-void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMode)
-{
+void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMode) {
+       LED_A_ON();
+       
        uint32_t i = 0;
 
        // Set up FPGA, 125kHz
-       // Wait for config.. (192+8190xPOW)x8 == 67ms
-       LFSetupFPGAForADC(0, true);
-
-       // Now start writting
+       LFSetupFPGAForADC(95, true);
+       
+       // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        SpinDelayUs(START_GAP);
 
-       // Opcode
+       // Opcode 10
        T55xxWriteBit(1);
        T55xxWriteBit(0); //Page 0
+       
        if (PwdMode == 1){
-               // Pwd
+               // Send pwd
                for (i = 0x80000000; i != 0; i >>= 1)
                        T55xxWriteBit(Pwd & i);
        }
-       // Lock bit
+       // Send lock bit
        T55xxWriteBit(0);
 
-       // Data
+       // Send data
        for (i = 0x80000000; i != 0; i >>= 1)
                T55xxWriteBit(Data & i);
 
-       // Block
+       // Send block number
        for (i = 0x04; i != 0; i >>= 1)
                T55xxWriteBit(Block & i);
 
-       // Now perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
+       // Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
        // so wait a little more)
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-       SpinDelay(20);
+       TurnReadLFOn(20 * 1000);
+       
+       // field off
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+       cmd_send(CMD_ACK,0,0,0,0,0);
+       LED_A_OFF();    
 }
 
-void TurnReadLFOn(){
+void TurnReadLFOn(int delay) {
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
        // Give it a bit of time for the resonant antenna to settle.
-       SpinDelayUs(8*150);
+       SpinDelayUs(delay);
 }
 
-
 // Read one card block in page 0
-void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode)
-{
+void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode) {
+       LED_A_ON();
+       
        uint32_t i = 0;
-       uint8_t *dest = BigBuf_get_addr();
-       uint16_t bufferlength = BigBuf_max_traceLen();
-       if ( bufferlength > T55xx_SAMPLES_SIZE )
-               bufferlength = T55xx_SAMPLES_SIZE;
-
-       // Clear destination buffer before sending the command
-       memset(dest, 0x80, bufferlength);
+       
+       //make sure block is at max 7
+       Block &= 0x7;
 
        // Set up FPGA, 125kHz
-       // Wait for config.. (192+8190xPOW)x8 == 67ms
-       LFSetupFPGAForADC(0, true);
+       LFSetupFPGAForADC(95, true);
+       
+       // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        SpinDelayUs(START_GAP);
-
-       // Opcode
+       
+       // Opcode 10
        T55xxWriteBit(1);
        T55xxWriteBit(0); //Page 0
+
        if (PwdMode == 1){
-               // Pwd
+               // Send pwd
                for (i = 0x80000000; i != 0; i >>= 1)
                        T55xxWriteBit(Pwd & i);
        }
-       // Lock bit
+       // Send a zero bit seperation
        T55xxWriteBit(0);
-       // Block
+       
+       // Send block number
        for (i = 0x04; i != 0; i >>= 1)
                T55xxWriteBit(Block & i);
 
        // Turn field on to read the response
-       TurnReadLFOn();
-       // Now do the acquisition
-       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;
-                       i++;
-                       LED_D_OFF();
-                       if (i >= bufferlength) break;
-               }
-       }
-
+       TurnReadLFOn(START_GAP);
+       
+       // Acquisition
+       doT55x7Acquisition();
+       
+       // field off
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        cmd_send(CMD_ACK,0,0,0,0,0);    
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
-       LED_D_OFF();
+       LED_A_OFF();
 }
 
 // Read card traceability data (page 1)
 void T55xxReadTrace(void){
-       
-       uint32_t i = 0;
-       uint8_t *dest = BigBuf_get_addr();
-       uint16_t bufferlength = BigBuf_max_traceLen();
-       if ( bufferlength > T55xx_SAMPLES_SIZE )
-               bufferlength= T55xx_SAMPLES_SIZE;
-
-       // Clear destination buffer before sending the command
-       memset(dest, 0x80, bufferlength);
+       LED_A_ON();
 
-       LFSetupFPGAForADC(0, true);
+       // Set up FPGA, 125kHz
+       LFSetupFPGAForADC(95, true);
+       
+       // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        SpinDelayUs(START_GAP);
 
-       // Opcode
+       // Opcode 11
        T55xxWriteBit(1);
        T55xxWriteBit(1); //Page 1
 
        // Turn field on to read the response
-       TurnReadLFOn();
-
-       // Now do the acquisition
-       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;
-                       i++;
-                       LED_D_OFF();
+       TurnReadLFOn(START_GAP);
 
-                       if (i >= bufferlength) break;
-               }
-       }
+       // Acquisition
+       doT55x7Acquisition();
 
+       // field off
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        cmd_send(CMD_ACK,0,0,0,0,0);
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
-       LED_D_OFF();
+       LED_A_OFF();
 }
 
 /*-------------- Cloning routines -----------*/
@@ -1445,7 +1541,6 @@ void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo)
 // Clone Indala 64-bit tag by UID to T55x7
 void CopyIndala64toT55x7(int hi, int lo)
 {
-
        //Program the 2 data blocks for supplied 64bit UID
        // and the block 0 for Indala64 format
        T55xxWriteBlock(hi,1,0,0);
@@ -1459,12 +1554,10 @@ void CopyIndala64toT55x7(int hi, int lo)
        //      T5567WriteBlock(0x603E1042,0);
 
        DbpString("DONE!");
-
 }
 
 void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int uid6, int uid7)
 {
-
        //Program the 7 data blocks for supplied 224bit UID
        // and the block 0 for Indala224 format
        T55xxWriteBlock(uid1,1,0,0);
@@ -1483,274 +1576,8 @@ void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int
        //      T5567WriteBlock(0x603E10E2,0);
 
        DbpString("DONE!");
-
 }
 
-
-#define abs(x) ( ((x)<0) ? -(x) : (x) )
-#define max(x,y) ( x<y ? y:x)
-
-int DemodPCF7931(uint8_t **outBlocks) {
-       uint8_t BitStream[256];
-       uint8_t Blocks[8][16];
-       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;
-       int pmc, block_done;
-       int lc, warnings = 0;
-       int num_blocks = 0;
-       int lmin=128, lmax=128;
-       uint8_t dir;
-
-       LFSetupFPGAForADC(95, true);
-       DoAcquisition_default(0, 0);
-
-
-       lmin = 64;
-       lmax = 192;
-
-       i = 2;
-
-       /* Find first local max/min */
-       if(GraphBuffer[1] > GraphBuffer[0]) {
-               while(i < GraphTraceLen) {
-                       if( !(GraphBuffer[i] > GraphBuffer[i-1]) && GraphBuffer[i] > lmax)
-                               break;
-                       i++;
-               }
-               dir = 0;
-       }
-       else {
-               while(i < GraphTraceLen) {
-                       if( !(GraphBuffer[i] < GraphBuffer[i-1]) && GraphBuffer[i] < lmin)
-                               break;
-                       i++;
-               }
-               dir = 1;
-       }
-
-       lastval = i++;
-       half_switch = 0;
-       pmc = 0;
-       block_done = 0;
-
-       for (bitidx = 0; i < GraphTraceLen; i++)
-       {
-               if ( (GraphBuffer[i-1] > GraphBuffer[i] && dir == 1 && GraphBuffer[i] > lmax) || (GraphBuffer[i-1] < GraphBuffer[i] && dir == 0 && GraphBuffer[i] < lmin))
-               {
-                       lc = i - lastval;
-                       lastval = i;
-
-                       // Switch depending on lc length:
-                       // Tolerance is 1/8 of clock rate (arbitrary)
-                       if (abs(lc-clock/4) < tolerance) {
-                               // 16T0
-                               if((i - pmc) == lc) { /* 16T0 was previous one */
-                                       /* It's a PMC ! */
-                                       i += (128+127+16+32+33+16)-1;
-                                       lastval = i;
-                                       pmc = 0;
-                                       block_done = 1;
-                               }
-                               else {
-                                       pmc = i;
-                               }
-                       } else if (abs(lc-clock/2) < tolerance) {
-                               // 32TO
-                               if((i - pmc) == lc) { /* 16T0 was previous one */
-                                       /* It's a PMC ! */
-                                       i += (128+127+16+32+33)-1;
-                                       lastval = i;
-                                       pmc = 0;
-                                       block_done = 1;
-                               }
-                               else if(half_switch == 1) {
-                                       BitStream[bitidx++] = 0;
-                                       half_switch = 0;
-                               }
-                               else
-                                       half_switch++;
-                       } else if (abs(lc-clock) < tolerance) {
-                               // 64TO
-                               BitStream[bitidx++] = 1;
-                       } else {
-                               // Error
-                               warnings++;
-                               if (warnings > 10)
-                               {
-                                       Dbprintf("Error: too many detection errors, aborting.");
-                                       return 0;
-                               }
-                       }
-
-                       if(block_done == 1) {
-                               if(bitidx == 128) {
-                                       for(j=0; j<16; j++) {
-                                               Blocks[num_blocks][j] = 128*BitStream[j*8+7]+
-                                                               64*BitStream[j*8+6]+
-                                                               32*BitStream[j*8+5]+
-                                                               16*BitStream[j*8+4]+
-                                                               8*BitStream[j*8+3]+
-                                                               4*BitStream[j*8+2]+
-                                                               2*BitStream[j*8+1]+
-                                                               BitStream[j*8];
-                                       }
-                                       num_blocks++;
-                               }
-                               bitidx = 0;
-                               block_done = 0;
-                               half_switch = 0;
-                       }
-                       if(i < GraphTraceLen)
-                       {
-                               if (GraphBuffer[i-1] > GraphBuffer[i]) dir=0;
-                               else dir = 1;
-                       }
-               }
-               if(bitidx==255)
-                       bitidx=0;
-               warnings = 0;
-               if(num_blocks == 4) break;
-       }
-       memcpy(outBlocks, Blocks, 16*num_blocks);
-       return num_blocks;
-}
-
-int IsBlock0PCF7931(uint8_t *Block) {
-       // Assume RFU means 0 :)
-       if((memcmp(Block, "\x00\x00\x00\x00\x00\x00\x00\x01", 8) == 0) && memcmp(Block+9, "\x00\x00\x00\x00\x00\x00\x00", 7) == 0) // PAC enabled
-               return 1;
-       if((memcmp(Block+9, "\x00\x00\x00\x00\x00\x00\x00", 7) == 0) && Block[7] == 0) // PAC disabled, can it *really* happen ?
-               return 1;
-       return 0;
-}
-
-int IsBlock1PCF7931(uint8_t *Block) {
-       // Assume RFU means 0 :)
-       if(Block[10] == 0 && Block[11] == 0 && Block[12] == 0 && Block[13] == 0)
-               if((Block[14] & 0x7f) <= 9 && Block[15] <= 9)
-                       return 1;
-
-       return 0;
-}
-
-#define ALLOC 16
-
-void ReadPCF7931() {
-       uint8_t Blocks[8][17];
-       uint8_t tmpBlocks[4][16];
-       int i, j, ind, ind2, n;
-       int num_blocks = 0;
-       int max_blocks = 8;
-       int ident = 0;
-       int error = 0;
-       int tries = 0;
-
-       memset(Blocks, 0, 8*17*sizeof(uint8_t));
-
-       do {
-               memset(tmpBlocks, 0, 4*16*sizeof(uint8_t));
-               n = DemodPCF7931((uint8_t**)tmpBlocks);
-               if(!n)
-                       error++;
-               if(error==10 && num_blocks == 0) {
-                       Dbprintf("Error, no tag or bad tag");
-                       return;
-               }
-               else if (tries==20 || error==10) {
-                       Dbprintf("Error reading the tag");
-                       Dbprintf("Here is the partial content");
-                       goto end;
-               }
-
-               for(i=0; i<n; i++)
-                       Dbprintf("(dbg) %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
-                                        tmpBlocks[i][0], tmpBlocks[i][1], tmpBlocks[i][2], tmpBlocks[i][3], tmpBlocks[i][4], tmpBlocks[i][5], tmpBlocks[i][6], tmpBlocks[i][7],
-                                       tmpBlocks[i][8], tmpBlocks[i][9], tmpBlocks[i][10], tmpBlocks[i][11], tmpBlocks[i][12], tmpBlocks[i][13], tmpBlocks[i][14], tmpBlocks[i][15]);
-               if(!ident) {
-                       for(i=0; i<n; i++) {
-                               if(IsBlock0PCF7931(tmpBlocks[i])) {
-                                       // Found block 0 ?
-                                       if(i < n-1 && IsBlock1PCF7931(tmpBlocks[i+1])) {
-                                               // Found block 1!
-                                               // \o/
-                                               ident = 1;
-                                               memcpy(Blocks[0], tmpBlocks[i], 16);
-                                               Blocks[0][ALLOC] = 1;
-                                               memcpy(Blocks[1], tmpBlocks[i+1], 16);
-                                               Blocks[1][ALLOC] = 1;
-                                               max_blocks = max((Blocks[1][14] & 0x7f), Blocks[1][15]) + 1;
-                                               // Debug print
-                                               Dbprintf("(dbg) Max blocks: %d", max_blocks);
-                                               num_blocks = 2;
-                                               // Handle following blocks
-                                               for(j=i+2, ind2=2; j!=i; j++, ind2++, num_blocks++) {
-                                                       if(j==n) j=0;
-                                                       if(j==i) break;
-                                                       memcpy(Blocks[ind2], tmpBlocks[j], 16);
-                                                       Blocks[ind2][ALLOC] = 1;
-                                               }
-                                               break;
-                                       }
-                               }
-                       }
-               }
-               else {
-                       for(i=0; i<n; i++) { // Look for identical block in known blocks
-                               if(memcmp(tmpBlocks[i], "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 16)) { // Block is not full of 00
-                                       for(j=0; j<max_blocks; j++) {
-                                               if(Blocks[j][ALLOC] == 1 && !memcmp(tmpBlocks[i], Blocks[j], 16)) {
-                                                       // Found an identical block
-                                                       for(ind=i-1,ind2=j-1; ind >= 0; ind--,ind2--) {
-                                                               if(ind2 < 0)
-                                                                       ind2 = max_blocks;
-                                                               if(!Blocks[ind2][ALLOC]) { // Block ind2 not already found
-                                                                       // Dbprintf("Tmp %d -> Block %d", ind, ind2);
-                                                                       memcpy(Blocks[ind2], tmpBlocks[ind], 16);
-                                                                       Blocks[ind2][ALLOC] = 1;
-                                                                       num_blocks++;
-                                                                       if(num_blocks == max_blocks) goto end;
-                                                               }
-                                                       }
-                                                       for(ind=i+1,ind2=j+1; ind < n; ind++,ind2++) {
-                                                               if(ind2 > max_blocks)
-                                                                       ind2 = 0;
-                                                               if(!Blocks[ind2][ALLOC]) { // Block ind2 not already found
-                                                                       // Dbprintf("Tmp %d -> Block %d", ind, ind2);
-                                                                       memcpy(Blocks[ind2], tmpBlocks[ind], 16);
-                                                                       Blocks[ind2][ALLOC] = 1;
-                                                                       num_blocks++;
-                                                                       if(num_blocks == max_blocks) goto end;
-                                                               }
-                                                       }
-                                               }
-                                       }
-                               }
-                       }
-               }
-               tries++;
-               if (BUTTON_PRESS()) return;
-       } while (num_blocks != max_blocks);
- end:
-       Dbprintf("-----------------------------------------");
-       Dbprintf("Memory content:");
-       Dbprintf("-----------------------------------------");
-       for(i=0; i<max_blocks; i++) {
-               if(Blocks[i][ALLOC]==1)
-                       Dbprintf("%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
-                                        Blocks[i][0], Blocks[i][1], Blocks[i][2], Blocks[i][3], Blocks[i][4], Blocks[i][5], Blocks[i][6], Blocks[i][7],
-                                       Blocks[i][8], Blocks[i][9], Blocks[i][10], Blocks[i][11], Blocks[i][12], Blocks[i][13], Blocks[i][14], Blocks[i][15]);
-               else
-                       Dbprintf("<missing block %d>", i);
-       }
-       Dbprintf("-----------------------------------------");
-
-       return ;
-}
-
-
 //-----------------------------------
 // EM4469 / EM4305 routines
 //-----------------------------------
@@ -1759,7 +1586,6 @@ void ReadPCF7931() {
 #define FWD_CMD_READ 0x9
 #define FWD_CMD_DISABLE 0x5
 
-
 uint8_t forwardLink_data[64]; //array of forwarded bits
 uint8_t * forward_ptr; //ptr for forward message preparation
 uint8_t fwd_bit_sz; //forwardlink bit counter
@@ -1769,9 +1595,7 @@ uint8_t * fwd_write_ptr; //forwardlink bit pointer
 // prepares command bits
 // see EM4469 spec
 //====================================================================
-//--------------------------------------------------------------------
 uint8_t Prepare_Cmd( uint8_t cmd ) {
-       //--------------------------------------------------------------------
 
        *forward_ptr++ = 0; //start bit
        *forward_ptr++ = 0; //second pause for 4050 code
@@ -1791,10 +1615,7 @@ uint8_t Prepare_Cmd( uint8_t cmd ) {
 // prepares address bits
 // see EM4469 spec
 //====================================================================
-
-//--------------------------------------------------------------------
 uint8_t Prepare_Addr( uint8_t addr ) {
-       //--------------------------------------------------------------------
 
        register uint8_t line_parity;
 
@@ -1815,10 +1636,7 @@ uint8_t Prepare_Addr( uint8_t addr ) {
 // prepares data bits intreleaved with parity bits
 // see EM4469 spec
 //====================================================================
-
-//--------------------------------------------------------------------
 uint8_t Prepare_Data( uint16_t data_low, uint16_t data_hi) {
-       //--------------------------------------------------------------------
 
        register uint8_t line_parity;
        register uint8_t column_parity;
@@ -1862,21 +1680,14 @@ void SendForward(uint8_t fwd_bit_count) {
 
        LED_D_ON();
 
-       //Field on
-       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-
-       // Give it a bit of time for the resonant antenna to settle.
-       // And for the tag to fully power up
-       SpinDelay(150);
-
+       // Set up FPGA, 125kHz
+       LFSetupFPGAForADC(95, true);
+       
        // force 1st mod pulse (start gap must be longer for 4305)
        fwd_bit_sz--; //prepare next bit modulation
        fwd_write_ptr++;
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
        SpinDelayUs(55*8); //55 cycles off (8us each)for 4305
-       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
        SpinDelayUs(16*8); //16 cycles on (8us each)
 
@@ -1888,7 +1699,6 @@ void SendForward(uint8_t fwd_bit_count) {
                        //These timings work for 4469/4269/4305 (with the 55*8 above)
                        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
                        SpinDelayUs(23*8); //16-4 cycles off (8us each)
-                       FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
                        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
                        SpinDelayUs(9*8); //16 cycles on (8us each)
                }
@@ -1907,14 +1717,18 @@ void EM4xLogin(uint32_t Password) {
 
        //Wait for command to complete
        SpinDelay(20);
-
 }
 
 void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
 
-       uint8_t fwd_bit_count;
        uint8_t *dest = BigBuf_get_addr();
-       int m=0, i=0;
+       uint16_t bufferlength = BigBuf_max_traceLen();
+       uint32_t i = 0;
+
+       // Clear destination buffer before sending the command  0x80 = average.
+       memset(dest, 0x80, bufferlength);
+       
+    uint8_t fwd_bit_count;
 
        //If password mode do login
        if (PwdMode == 1) EM4xLogin(Pwd);
@@ -1923,9 +1737,6 @@ 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 = 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.
        SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
        // Now set up the SSC to get the ADC samples that are now streaming at us.
@@ -1941,11 +1752,13 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
                }
                if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) {
                        dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-                       i++;
-                       if (i >= m) break;
+                       ++i;
+                       if (i >= bufferlength) break;
                }
        }
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
+
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off    
+       cmd_send(CMD_ACK,0,0,0,0,0);
        LED_D_OFF();
 }
 
@@ -1968,3 +1781,16 @@ void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
        LED_D_OFF();
 }
+
+void CopyViKingtoT55x7(uint32_t block1, uint32_t block2) {
+    LED_D_ON();
+    T55xxWriteBlock(block1,1,0,0);
+    T55xxWriteBlock(block2,2,0,0);
+    T55xxWriteBlock(T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | 2 << T5555_MAXBLOCK_SHIFT,0,0,1);
+       // ICEMAN NOTES:
+       // Shouldn't this one be: T55x7_MAXBLOCK_SHIFT  and 0 in password mode
+       // like this:
+       // T55xxWriteBlock(T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | 2 << T55x7_MAXBLOCK_SHIFT,0,0,0);
+    LED_D_OFF();
+}
+
Impressum, Datenschutz