*/
void ReadTItag(void)
{
+ StartTicks();
// some hardcoded initial params
// when we read a TI tag we sample the zerocross line at 2Mhz
// TI tags modulate a 1 as 16 cycles of 123.2Khz
DbpString("Info: CRC is good");
}
}
+ StopTicks();
}
void WriteTIbyte(uint8_t b)
HIGH(GPIO_SSC_DOUT);
// Charge TI tag for 50ms.
- SpinDelay(50);
+ WaitMS(50);
// stop modulating antenna and listen
LOW(GPIO_SSC_DOUT);
// if not provided a valid crc will be computed from the data and written.
void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
{
+ StartTicks();
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
if(crc == 0) {
crc = update_crc16(crc, (idlo)&0xff);
// modulate antenna
HIGH(GPIO_SSC_DOUT);
- SpinDelay(50); // charge time
+ WaitMS(50); // charge time
WriteTIbyte(0xbb); // keyword
WriteTIbyte(0xeb); // password
WriteTIbyte(0x00); // write frame lo
WriteTIbyte(0x03); // write frame hi
HIGH(GPIO_SSC_DOUT);
- SpinDelay(50); // programming time
+ WaitMS(50); // programming time
LED_A_OFF();
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("Now use `lf ti read` to check");
+ StopTicks();
}
void SimulateTagLowFrequency(int period, int gap, int ledcontrol)
{
int i = 0;
- uint8_t *tab = BigBuf_get_addr();
+ uint8_t *buf = BigBuf_get_addr();
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT);
+ //FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT | FPGA_LF_EDGE_DETECT_READER_FIELD);
+ //FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT | FPGA_LF_EDGE_DETECT_TOGGLE_MODE );
- FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT | FPGA_LF_EDGE_DETECT_READER_FIELD);
+ // set frequency, get values from 'lf config' command
+ sample_config *sc = getSamplingConfig();
+ if ( (sc->divisor == 1) || (sc->divisor < 0) || (sc->divisor > 255) )
+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz
+ else if (sc->divisor == 0)
+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz
+ else
+ FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc->divisor);
+
+ SetAdcMuxFor(GPIO_MUXSEL_LOPKD);
+
AT91C_BASE_PIOA->PIO_PER = GPIO_SSC_DOUT | GPIO_SSC_CLK;
AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
AT91C_BASE_PIOA->PIO_ODR = GPIO_SSC_CLK;
+ // power on antenna
+ // OPEN_COIL();
+ // SpinDelay(50);
+
for(;;) {
WDT_HIT();
if (ledcontrol) LED_D_ON();
- //wait until SSC_CLK goes HIGH
+ // wait until SSC_CLK goes HIGH
+ // used as a simple detection of a reader field?
while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {
WDT_HIT();
- if ( usb_poll_validate_length() || BUTTON_PRESS() ) {
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LED_D_OFF();
- return;
- }
+ if ( usb_poll_validate_length() || BUTTON_PRESS() )
+ goto OUT;
}
- if(tab[i])
+ if(buf[i])
OPEN_COIL();
else
SHORT_COIL();
-
- if (ledcontrol) LED_D_OFF();
-
+
//wait until SSC_CLK goes LOW
while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) {
WDT_HIT();
- if ( usb_poll_validate_length() || BUTTON_PRESS() ) {
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LED_D_OFF();
- return;
- }
+ if ( usb_poll_validate_length() || BUTTON_PRESS() )
+ goto OUT;
}
-
+
i++;
if(i == period) {
i = 0;
if (gap) {
WDT_HIT();
SHORT_COIL();
- WaitUS(gap);
+ SpinDelayUs(gap);
}
}
+
+ if (ledcontrol) LED_D_OFF();
}
+OUT:
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ LED_D_OFF();
+ DbpString("Simulation stopped");
+ return;
}
#define DEBUG_FRAME_CONTENTS 1
if (ledcontrol) LED_A_OFF();
*high = hi;
*low = lo;
- return;
+ break;
}
// reset
}
hi2 = hi = lo = idx = 0;
WDT_HIT();
}
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("Stopped");
if (ledcontrol) LED_A_OFF();
}
}
break;
}
- if (findone){
- if (ledcontrol) LED_A_OFF();
- return;
- }
+ if (findone)
+ break;
+
idx = 0;
WDT_HIT();
}
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("Stopped");
if (ledcontrol) LED_A_OFF();
}
if (ledcontrol) LED_A_OFF();
*high=lo>>32;
*low=lo & 0xFFFFFFFF;
- return;
+ break;
}
}
WDT_HIT();
hi = lo = size = idx = 0;
clk = invert = errCnt = 0;
}
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("Stopped");
if (ledcontrol) LED_A_OFF();
}
// 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]);
- }
+ // 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
if (ledcontrol) LED_A_OFF();
*high=code;
*low=code2;
- return;
+ break;
}
code=code2=0;
version=facilitycode=0;
WDT_HIT();
}
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("Stopped");
if (ledcontrol) LED_A_OFF();
}
* Q5 tags seems to have issues when these values changes.
*/
-#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_1 50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) 432 for T55x7; 448 for E5550
+#define START_GAP 50*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (15fc)
+#define WRITE_GAP 20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (10fc)
+#define WRITE_0 18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (24fc)
+#define WRITE_1 54*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (56fc) 432 for T55x7; 448 for E5550
#define READ_GAP 15*8
// VALUES TAKEN FROM EM4x function: SendForward
// 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);
+// WRITE_0 = 23*8 , 9*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
// T0 = TIMER_CLOCK1 / 125000 = 192
// 1 Cycle = 8 microseconds(us) == 1 field clock
-void TurnReadLFOn(int delay) {
+// new timer:
+// = 1us = 1.5ticks
+// 1fc = 8us = 12ticks
+void TurnReadLFOn(uint32_t delay) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
// measure antenna strength.
// Perform write (nominal is 5.6 ms for T55x7 and 18ms for E5550,
// so wait a little more)
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
+
+ //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
// turn field off
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
//-----------------------------------
// EM4469 / EM4305 routines
//-----------------------------------
-#define FWD_CMD_LOGIN 0xC //including the even parity, binary mirrored
-#define FWD_CMD_WRITE 0xA
-#define FWD_CMD_READ 0x9
+#define FWD_CMD_LOGIN 0xC //including the even parity, binary mirrored
+#define FWD_CMD_WRITE 0xA
+#define FWD_CMD_READ 0x9
#define FWD_CMD_DISABLE 0x5
uint8_t forwardLink_data[64]; //array of forwarded bits
// 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);
+// WRITE_0 = 23*8 , 9*8
uint8_t Prepare_Cmd( uint8_t cmd ) {
else {
//These timings work for 4469/4269/4305 (with the 55*8 above)
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
- WaitUS(23*8); //16-4 cycles off (8us each) // ICEMAN: problem with (us) clock is 21.3us increments
+ WaitUS(16*8); //16-4 cycles off (8us each) // ICEMAN: problem with (us) clock is 21.3us increments
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
- WaitUS(9*8); //16 cycles on (8us each) // ICEMAN: problem with (us) clock is 21.3us increments
+ WaitUS(16*8); //16 cycles on (8us each) // ICEMAN: problem with (us) clock is 21.3us increments
}
}
}
void EM4xLogin(uint32_t Password) {
uint8_t fwd_bit_count;
-
forward_ptr = forwardLink_data;
fwd_bit_count = Prepare_Cmd( FWD_CMD_LOGIN );
fwd_bit_count += Prepare_Data( Password&0xFFFF, Password>>16 );
-
SendForward(fwd_bit_count);
//Wait for command to complete
- SpinDelay(20);
+ WaitMS(20);
}
void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
uint8_t fwd_bit_count;
uint8_t *dest = BigBuf_get_addr();
- uint16_t bufsize = BigBuf_max_traceLen();
+ uint16_t bufsize = BigBuf_max_traceLen(); // ICEMAN: this tries to fill up all tracelog space
uint32_t i = 0;
// Clear destination buffer before sending the command
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);
// Now do the acquisition
+ // ICEMAN, change to the one in lfsampling.c
i = 0;
for(;;) {
if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) {
SendForward(fwd_bit_count);
//Wait for write to complete
- SpinDelay(20);
+ WaitMS(20);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
LED_D_OFF();
}
projects / proxmark3-svn / blobdiff