git.zerfleddert.de Git - proxmark3-svn/blobdiff

index 2079f263d5396007d3b4f37b048ff3a15e78ddf5..566ba1d40982ce2a2cb2e368383b5dc533787d80 100644 (file)

--- a/armsrc/lfops.c

+++ b/armsrc/lfops.c

@@ -72,7 +72,7 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t period_0, uint

FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);

// now do the read

FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);

// now do the read

- DoAcquisition_config(false);

+ DoAcquisition_config(false, 0);

}

/* blank r/w tag data stream

}

/* blank r/w tag data stream

@@ -403,6 +403,7 @@ void SimulateTagLowFrequency(int period, int gap, int ledcontrol)

//wait until SSC_CLK goes HIGH

while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {

if(BUTTON_PRESS() || (usb_poll_validate_length() )) {

//wait until SSC_CLK goes HIGH

while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {

if(BUTTON_PRESS() || (usb_poll_validate_length() )) {

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

DbpString("Stopped");

return;

}

DbpString("Stopped");

return;

}

@@ -420,8 +421,9 @@ void SimulateTagLowFrequency(int period, int gap, int ledcontrol)

LED_D_OFF();

//wait until SSC_CLK goes LOW

while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) {

LED_D_OFF();

//wait until SSC_CLK goes LOW

while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) {

- if(BUTTON_PRESS()) {

+ if(BUTTON_PRESS() || (usb_poll_validate_length() )) {

DbpString("Stopped");

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

return;

}

WDT_HIT();

return;

}

WDT_HIT();

@@ -436,6 +438,7 @@ void SimulateTagLowFrequency(int period, int gap, int ledcontrol)

SpinDelayUs(gap);

}

SpinDelayUs(gap);

}

@@ -681,7 +684,7 @@ void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)

for (i=0; i<size; i++){

askSimBit(BitStream[i]^invert, &n, clk, encoding);

}

for (i=0; i<size; i++){

askSimBit(BitStream[i]^invert, &n, clk, encoding);

}

- if (encoding==0 && BitStream[0]==BitStream[size-1]){ //run a second set inverted (for biphase phase)

+ if (encoding==0 && BitStream[0]==BitStream[size-1]){ //run a second set inverted (for ask/raw || biphase phase)

for (i=0; i<size; i++){

askSimBit(BitStream[i]^invert^1, &n, clk, encoding);

}

for (i=0; i<size; i++){

askSimBit(BitStream[i]^invert^1, &n, clk, encoding);

}

@@ -766,6 +769,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)

size_t size;

uint32_t hi2=0, hi=0, lo=0;

int idx=0;

size_t size;

uint32_t hi2=0, hi=0, lo=0;

int idx=0;

+ int dummyIdx = 0;

// Configure to go in 125Khz listen mode

LFSetupFPGAForADC(95, true);

// Configure to go in 125Khz listen mode

LFSetupFPGAForADC(95, true);

@@ -781,7 +785,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)

// 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

// 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 = HIDdemodFSK(dest, &size, &hi2, &hi, &lo);

+ idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo, &dummyIdx);

if (idx>0 && lo>0 && (size==96 || size==192)){

// go over previously decoded manchester data and decode into usable tag ID

if (idx>0 && lo>0 && (size==96 || size==192)){

// go over previously decoded manchester data and decode into usable tag ID

@@ -840,13 +844,15 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)

if (ledcontrol) LED_A_OFF();

*high = hi;

*low = lo;

if (ledcontrol) LED_A_OFF();

*high = hi;

*low = lo;

- return;

+ break;

}

// reset

}

hi2 = hi = lo = idx = 0;

WDT_HIT();

}

// reset

}

hi2 = hi = lo = idx = 0;

WDT_HIT();

}

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

@@ -856,7 +862,7 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)

{

uint8_t *dest = BigBuf_get_addr();

size_t size;

{

uint8_t *dest = BigBuf_get_addr();

size_t size;

- int idx=0;

+ int idx=0, dummyIdx=0;

//clear read buffer

BigBuf_Clear_keep_EM();

// Configure to go in 125Khz listen mode

//clear read buffer

BigBuf_Clear_keep_EM();

// Configure to go in 125Khz listen mode

@@ -870,7 +876,7 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)

DoAcquisition_default(-1,true);

// FSK demodulator

size = 50*128*2; //big enough to catch 2 sequences of largest format

DoAcquisition_default(-1,true);

// FSK demodulator

size = 50*128*2; //big enough to catch 2 sequences of largest format

- idx = AWIDdemodFSK(dest, &size);

+ idx = AWIDdemodFSK(dest, &size, &dummyIdx);

if (idx<=0 || size!=96) continue;

// Index map

if (idx<=0 || size!=96) continue;

// Index map

@@ -931,12 +937,13 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)

}

if (findone){

if (ledcontrol) LED_A_OFF();

}

if (findone){

if (ledcontrol) LED_A_OFF();

- return;

+ break;

}

// reset

idx = 0;

WDT_HIT();

}

// reset

idx = 0;

WDT_HIT();

}

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

@@ -991,13 +998,14 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)

if (ledcontrol) LED_A_OFF();

*high=lo>>32;

*low=lo & 0xFFFFFFFF;

if (ledcontrol) LED_A_OFF();

*high=lo>>32;

*low=lo & 0xFFFFFFFF;

- return;

+ break;

}

WDT_HIT();

hi = lo = size = idx = 0;

clk = invert = errCnt = 0;

}

WDT_HIT();

hi = lo = size = idx = 0;

clk = invert = errCnt = 0;

}

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

@@ -1010,6 +1018,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)

uint8_t version=0;

uint8_t facilitycode=0;

uint16_t number=0;

uint8_t version=0;

uint8_t facilitycode=0;

uint16_t number=0;

+ int dummyIdx=0;

//clear read buffer

BigBuf_Clear_keep_EM();

// Configure to go in 125Khz listen mode

//clear read buffer

BigBuf_Clear_keep_EM();

// Configure to go in 125Khz listen mode

@@ -1021,7 +1030,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)

DoAcquisition_default(-1,true);

//fskdemod and get start index

WDT_HIT();

DoAcquisition_default(-1,true);

//fskdemod and get start index

WDT_HIT();

- idx = IOdemodFSK(dest, BigBuf_max_traceLen());

+ idx = IOdemodFSK(dest, BigBuf_max_traceLen(), &dummyIdx);

if (idx<0) continue;

//valid tag found

if (idx<0) continue;

//valid tag found

@@ -1056,7 +1065,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)

//LED_A_OFF();

*high=code;

*low=code2;

//LED_A_OFF();

*high=code;

*low=code2;

- return;

+ break;

}

code=code2=0;

version=facilitycode=0;

}

code=code2=0;

version=facilitycode=0;

@@ -1065,6 +1074,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)

WDT_HIT();

}

WDT_HIT();

}

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

DbpString("Stopped");

if (ledcontrol) LED_A_OFF();

}

@@ -1088,7 +1098,7 @@ 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.

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

}

// Write one bit to card

@@ -1098,7 +1108,7 @@ void T55xxWriteBit(int bit) {

else

TurnReadLFOn(WRITE_1);

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

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)

}

// Send T5577 reset command then read stream (see if we can identify the start of the stream)

@@ -1109,20 +1119,22 @@ void T55xxResetRead(void) {

// Set up FPGA, 125kHz

LFSetupFPGAForADC(95, true);

// 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);

// Trigger T55x7 in mode.

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

- SpinDelayUs(START_GAP);

+ WaitUS(START_GAP);

// reset tag - op code 00

T55xxWriteBit(0);

// reset tag - op code 00

T55xxWriteBit(0);

- // Turn field on to read the response

TurnReadLFOn(READ_GAP);

// Acquisition

TurnReadLFOn(READ_GAP);

// Acquisition

- doT55x7Acquisition(BigBuf_max_traceLen());

+ DoPartialAcquisition(0, true, BigBuf_max_traceLen());

// Turn the field off

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

// Turn the field off

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

@@ -1135,19 +1147,24 @@ 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;

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);

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);

// Trigger T55x7 in mode.

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

- SpinDelayUs(START_GAP);

+ WaitUS(START_GAP);

- // Opcode 10

- T55xxWriteBit(1);

- T55xxWriteBit(Page); //Page 0

- if (PwdMode){

+ 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)

T55xxWriteBit(Pwd & i);

// Send Pwd

for (i = 0x80000000; i != 0; i >>= 1)

T55xxWriteBit(Pwd & i);

@@ -1165,11 +1182,31 @@ 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)

// 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 or t5567

+ // so we should wait 1 clock + 5.6ms then read response?

+ // but we need to know we are dealing with t5577 vs t5567 vs e5550 (or q5) marshmellow...

+ if (testMode) {

+ //TESTMODE TIMING TESTS:

+ // <566us does nothing

+ // 566-568 switches between wiping to 0s and doing nothing

+ // 5184 wipes and allows 1 block to be programmed.

+ // indefinite power on wipes and then programs all blocks with bitshifted data sent.

+ TurnReadLFOn(5184);

+ } 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

//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.

+ //DoPartialAcquisition(20, true, 12000);

+ }

// turn field off

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

// turn field off

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

@@ -1188,7 +1225,7 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {

bool PwdMode = arg0 & 0x1;

uint8_t Page = (arg0 & 0x2) >> 1;

uint32_t i = 0;

bool PwdMode = arg0 & 0x1;

uint8_t Page = (arg0 & 0x2) >> 1;

uint32_t i = 0;

- bool RegReadMode = (Block == 0xFF);

+ bool RegReadMode = (Block == 0xFF);//regular read mode

//clear buffer now so it does not interfere with timing later

BigBuf_Clear_ext(false);

//clear buffer now so it does not interfere with timing later

BigBuf_Clear_ext(false);

@@ -1198,10 +1235,12 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {

// Set up FPGA, 125kHz to power up the tag

LFSetupFPGAForADC(95, true);

// 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);

// Trigger T55x7 Direct Access Mode with start gap

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

- SpinDelayUs(START_GAP);

+ WaitUS(START_GAP);

// Opcode 1[page]

T55xxWriteBit(1);

// Opcode 1[page]

T55xxWriteBit(1);

@@ -1221,10 +1260,13 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {

T55xxWriteBit(Block & i);

// Turn field on to read the response

T55xxWriteBit(Block & i);

// Turn field on to read the response

- TurnReadLFOn(READ_GAP);

+ // 137*8 seems to get to the start of data pretty well...

+ // but we want to go past the start and let the repeating data settle in...

+ TurnReadLFOn(210*8);

// Acquisition

- doT55x7Acquisition(12000);

+ // Now do the acquisition

+ DoPartialAcquisition(0, true, 12000);

// Turn the field off

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

// Turn the field off

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

@@ -1238,10 +1280,13 @@ void T55xxWakeUp(uint32_t Pwd){

// Set up FPGA, 125kHz

LFSetupFPGAForADC(95, true);

// 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);

// Trigger T55x7 Direct Access Mode

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

- SpinDelayUs(START_GAP);

+ WaitUS(START_GAP);

// Opcode 10

T55xxWriteBit(1);

// Opcode 10

T55xxWriteBit(1);

@@ -1350,7 +1395,7 @@ void CopyIndala224toT55x7(uint32_t uid1, uint32_t uid2, uint32_t uid3, uint32_t

//Config for Indala (RF/32;PSK1 with RF/2;Maxblock=7)

data[0] = T55x7_BITRATE_RF_32 | T55x7_MODULATION_PSK1 | (7 << T55x7_MAXBLOCK_SHIFT);

//TODO add selection of chip for Q5 or T55x7

//Config for Indala (RF/32;PSK1 with RF/2;Maxblock=7)

data[0] = T55x7_BITRATE_RF_32 | T55x7_MODULATION_PSK1 | (7 << T55x7_MAXBLOCK_SHIFT);

//TODO add selection of chip for Q5 or T55x7

- // data[0] = (((32-2)/2)<<T5555_BITRATE_SHIFT) | T5555_MODULATION_PSK1 | 7 << T5555_MAXBLOCK_SHIFT;

+ // data[0] = (((32-2)>>1)<<T5555_BITRATE_SHIFT) | T5555_MODULATION_PSK1 | 7 << T5555_MAXBLOCK_SHIFT;

WriteT55xx(data, 0, 8);

//Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=7;Inverse data)

// T5567WriteBlock(0x603E10E2,0);

WriteT55xx(data, 0, 8);

//Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=7;Inverse data)

// T5567WriteBlock(0x603E10E2,0);

@@ -1359,7 +1404,7 @@ 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};

// 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 << 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();

// Program the data blocks for supplied ID and the block 0 config

WriteT55xx(data, 0, 3);

LED_D_OFF();

@@ -1443,8 +1488,7 @@ 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)

}

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);

}

WriteT55xx(data, 0, 3);

@@ -1563,29 +1607,27 @@ void SendForward(uint8_t fwd_bit_count) {

fwd_write_ptr = forwardLink_data;

fwd_bit_sz = fwd_bit_count;

fwd_write_ptr = forwardLink_data;

fwd_bit_sz = fwd_bit_count;

- LED_D_ON();

- // Set up FPGA, 125kHz

+ // Set up FPGA, 125kHz or 95 divisor

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

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

+ WaitUS(55*8); //55 cycles off (8us each)for 4305 //another reader has 37 here...

FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on

- SpinDelayUs(16*8); //16 cycles on (8us each)

+ WaitUS(18*8); //18 cycles on (8us each)

// now start writting

while(fwd_bit_sz-- > 0) { //prepare next bit modulation

if(((*fwd_write_ptr++) & 1) == 1)

// now start writting

while(fwd_bit_sz-- > 0) { //prepare next bit modulation

if(((*fwd_write_ptr++) & 1) == 1)

- SpinDelayUs(32*8); //32 cycles at 125Khz (8us each)

+ WaitUS(32*8); //32 cycles at 125Khz (8us each)

else {

//These timings work for 4469/4269/4305 (with the 55*8 above)

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

else {

//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)

+ WaitUS(23*8); //23 cycles off (8us each)

FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on

- SpinDelayUs(9*8); //16 cycles on (8us each)

+ WaitUS(18*8); //18 cycles on (8us each)

}

@@ -1607,13 +1649,12 @@ void EM4xLogin(uint32_t Password) {

void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {

uint8_t fwd_bit_count;

void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {

uint8_t fwd_bit_count;

- uint8_t *dest = BigBuf_get_addr();

- uint16_t bufferlength = BigBuf_max_traceLen();

- uint32_t i = 0;

// Clear destination buffer before sending the command

BigBuf_Clear_ext(false);

// Clear destination buffer before sending the command

BigBuf_Clear_ext(false);

+ LED_A_ON();

+ StartTicks();

//If password mode do login

if (PwdMode == 1) EM4xLogin(Pwd);

//If password mode do login

if (PwdMode == 1) EM4xLogin(Pwd);

@@ -1621,36 +1662,29 @@ 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 );

fwd_bit_count = Prepare_Cmd( FWD_CMD_READ );

fwd_bit_count += Prepare_Addr( Address );

- // 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.

- FpgaSetupSsc();

SendForward(fwd_bit_count);

+ WaitUS(400);

// Now do the acquisition

- i = 0;

- for(;;) {

- if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) {

- AT91C_BASE_SSC->SSC_THR = 0x43;

- }

- if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) {

- dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR;

- i++;

- if (i >= bufferlength) break;

- }

+ DoPartialAcquisition(20, true, 6000);

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

+ LED_A_OFF();

cmd_send(CMD_ACK,0,0,0,0,0);

- LED_D_OFF();

}

-void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {

+void EM4xWriteWord(uint32_t flag, uint32_t Data, uint32_t Pwd) {

+ bool PwdMode = (flag & 0xF);

+ uint8_t Address = (flag >> 8) & 0xFF;

uint8_t fwd_bit_count;

+ //clear buffer now so it does not interfere with timing later

+ BigBuf_Clear_ext(false);

+ LED_A_ON();

+ StartTicks();

//If password mode do login

- if (PwdMode == 1) EM4xLogin(Pwd);

+ if (PwdMode) EM4xLogin(Pwd);

forward_ptr = forwardLink_data;

fwd_bit_count = Prepare_Cmd( FWD_CMD_WRITE );

forward_ptr = forwardLink_data;

fwd_bit_count = Prepare_Cmd( FWD_CMD_WRITE );

@@ -1660,7 +1694,72 @@ void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode

SendForward(fwd_bit_count);

//Wait for write to complete

SendForward(fwd_bit_count);

//Wait for write to complete

- SpinDelay(20);

+ //SpinDelay(10);

+ WaitUS(6500);

+ //Capture response if one exists

+ DoPartialAcquisition(20, true, 6000);

FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

- LED_D_OFF();

+ LED_A_OFF();

+ cmd_send(CMD_ACK,0,0,0,0,0);

+/*

+Reading a COTAG.

+COTAG needs the reader to send a startsequence and the card has an extreme slow datarate.

+because of this, we can "sample" the data signal but we interpreate it to Manchester direct.

+READER START SEQUENCE:

+burst 800 us, gap 2.2 msecs

+burst 3.6 msecs gap 2.2 msecs

+burst 800 us gap 2.2 msecs

+pulse 3.6 msecs

+This triggers a COTAG tag to response

+*/

+void Cotag(uint32_t arg0) {

+#define OFF { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); WaitUS(2035); }

+#define ON(x) { FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); WaitUS((x)); }

+ uint8_t rawsignal = arg0 & 0xF;

+ LED_A_ON();

+ // Switching to LF image on FPGA. This might empty BigBuff

+ FpgaDownloadAndGo(FPGA_BITSTREAM_LF);

+ //clear buffer now so it does not interfere with timing later

+ BigBuf_Clear_ext(false);

+ // Set up FPGA, 132kHz to power up the tag

+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 89);

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);

+ // 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.

+ FpgaSetupSsc();

+ // start clock - 1.5ticks is 1us

+ StartTicks();

+ //send COTAG start pulse

+ ON(740) OFF

+ ON(3330) OFF

+ ON(740) OFF

+ ON(1000)

+ switch(rawsignal) {

+ case 0: doCotagAcquisition(50000); break;

+ case 1: doCotagAcquisitionManchester(); break;

+ case 2: DoAcquisition_config(true, 0); break;

+ }

+ // Turn the field off

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off

+ cmd_send(CMD_ACK,0,0,0,0,0);

+ LED_A_OFF();

}