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);
}
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
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)
// 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
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)
// 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);
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);
// 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);
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);
+
+ // doT55x7Acquisition(12000);
// Turn the field off
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
// 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);
//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);
// 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();
}
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);
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
- 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)
- 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
- 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)
}
}
}
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);
+ LED_A_ON();
+ StartTicks();
//If password mode do login
if (PwdMode == 1) EM4xLogin(Pwd);
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 );
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.
projects / proxmark3-svn / blobdiff