lf improvements

[proxmark3-svn] / armsrc / lfops.c

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 75aa134240aedffa1eb5b73f4482a76920ef637f..35cf90cad25abd63f8bc60015beb6ef058733e75 100644 (file)
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -1096,7 +1096,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 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(delay); //155*8 //50*8
+       WaitUS(delay); //155*8 //50*8
 }
 
 // Write one bit to card
@@ -1106,7 +1106,7 @@ void T55xxWriteBit(int bit) {
        else
                TurnReadLFOn(WRITE_1);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       SpinDelayUs(WRITE_GAP);
+       WaitUS(WRITE_GAP);
 }
 
 // Send T5577 reset command then read stream (see if we can identify the start of the stream)
@@ -1117,16 +1117,18 @@ void T55xxResetRead(void) {
 
        // Set up FPGA, 125kHz
        LFSetupFPGAForADC(95, true);
-
+       StartTicks();
+       // make sure tag is fully powered up...
+       WaitMS(5);
+       
        // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       SpinDelayUs(START_GAP);
+       WaitUS(START_GAP);
 
        // reset tag - op code 00
        T55xxWriteBit(0);
        T55xxWriteBit(0);
 
-       // Turn field on to read the response
        TurnReadLFOn(READ_GAP);
 
        // Acquisition
@@ -1143,18 +1145,22 @@ void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg
        LED_A_ON();
        bool PwdMode = arg & 0x1;
        uint8_t Page = (arg & 0x2)>>1;
+       bool testMode = arg & 0x4;
        uint32_t i = 0;
 
        // Set up FPGA, 125kHz
        LFSetupFPGAForADC(95, true);
-
+       StartTicks();
+       // make sure tag is fully powered up...
+       WaitMS(5);
        // Trigger T55x7 in mode.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       SpinDelayUs(START_GAP);
+       WaitUS(START_GAP);
 
-       // Opcode 10
-       T55xxWriteBit(1);
-       T55xxWriteBit(Page); //Page 0
+       if (testMode) Dbprintf("TestMODE");
+       // Std Opcode 10
+       T55xxWriteBit(testMode ? 0 : 1);
+       T55xxWriteBit(testMode ? 1 : Page); //Page 0
        if (PwdMode){
                // Send Pwd
                for (i = 0x80000000; i != 0; i >>= 1)
@@ -1173,11 +1179,31 @@ void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg
 
        // Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
        // so wait a little more)
-       TurnReadLFOn(20 * 1000);
+
+       // "there is a clock delay before programming" 
+       //  - programming takes ~5.6ms for t5577 ~18ms for E5550
+       //  so we should wait 1 clock + 5.6ms then read response? 
+       //  but we need to know we are dealing with t55x7 vs e5550 (or q5) marshmellow...
+       if (testMode) {
+               // Turn field on to read the response
+               TurnReadLFOn(READ_GAP);
+
+               // Acquisition
+               // Now do the acquisition
+               // Now do the acquisition
+               DoPartialAcquisition(20, true, 12000);
+
+               //doT55x7Acquisition(12000);
+       } else {
+               TurnReadLFOn(20 * 1000);
+       }
                //could attempt to do a read to confirm write took
                // as the tag should repeat back the new block 
                // until it is reset, but to confirm it we would 
-               // need to know the current block 0 config mode
+               // need to know the current block 0 config mode for
+               // modulation clock an other details to demod the response...
+               // response should be (for t55x7) a 0 bit then (ST if on) 
+               // block data written in on repeat until reset. 
 
        // turn field off
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
@@ -1206,10 +1232,12 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
 
        // Set up FPGA, 125kHz to power up the tag
        LFSetupFPGAForADC(95, true);
-
+       StartTicks();
+       // make sure tag is fully powered up...
+       WaitMS(5);
        // Trigger T55x7 Direct Access Mode with start gap
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       SpinDelayUs(START_GAP);
+       WaitUS(START_GAP);
 
        // Opcode 1[page]
        T55xxWriteBit(1);
@@ -1229,10 +1257,13 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
                        T55xxWriteBit(Block & i);               
 
        // Turn field on to read the response
-       TurnReadLFOn(READ_GAP);
+       TurnReadLFOn(135*8);
 
        // Acquisition
-       doT55x7Acquisition(12000);
+       // Now do the acquisition
+       DoPartialAcquisition(0, true, 12000);
+
+       //      doT55x7Acquisition(12000);
 
        // Turn the field off
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
@@ -1246,10 +1277,13 @@ void T55xxWakeUp(uint32_t Pwd){
        
        // Set up FPGA, 125kHz
        LFSetupFPGAForADC(95, true);
+       StartTicks();
+       // make sure tag is fully powered up...
+       WaitMS(5);
        
        // Trigger T55x7 Direct Access Mode
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-       SpinDelayUs(START_GAP);
+       WaitUS(START_GAP);
        
        // Opcode 10
        T55xxWriteBit(1);
@@ -1367,7 +1401,7 @@ void CopyIndala224toT55x7(uint32_t uid1, uint32_t uid2, uint32_t uid3, uint32_t
 // clone viking tag to T55xx
 void CopyVikingtoT55xx(uint32_t block1, uint32_t block2, uint8_t Q5) {
        uint32_t data[] = {T55x7_BITRATE_RF_32 | T55x7_MODULATION_MANCHESTER | (2 << T55x7_MAXBLOCK_SHIFT), block1, block2};
-       if (Q5) data[0] = ( ((32-2)>>1) << T5555_BITRATE_SHIFT) | T5555_MODULATION_MANCHESTER | 2 << T5555_MAXBLOCK_SHIFT;
+       if (Q5) data[0] = T5555_SET_BITRATE(32) | T5555_MODULATION_MANCHESTER | 2 << T5555_MAXBLOCK_SHIFT;
        // Program the data blocks for supplied ID and the block 0 config
        WriteT55xx(data, 0, 3);
        LED_D_OFF();
@@ -1451,8 +1485,7 @@ void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo) {
                }
                data[0] = clock | T55x7_MODULATION_MANCHESTER | (2 << T55x7_MAXBLOCK_SHIFT);
        } else { //t5555 (Q5)
-               clock = (clock-2)>>1;  //n = (RF-2)/2
-               data[0] = (clock << T5555_BITRATE_SHIFT) | T5555_MODULATION_MANCHESTER | (2 << T5555_MAXBLOCK_SHIFT);
+               data[0] = T5555_SET_BITRATE(clock) | T5555_MODULATION_MANCHESTER | (2 << T5555_MAXBLOCK_SHIFT);
        }
 
        WriteT55xx(data, 0, 3);