X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f121b478a11894a42f0fdab127974e1e7d521cc3..76c0ec0ba867308c26a882bb69087fac78d2ea2f:/armsrc/lfops.c
diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 1f1e48ee..28927c33 100644
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -60,19 +60,19 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t periods, uint3
while(*command != '\0' && *command != ' ') {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LED_D_OFF();
- SpinDelayUs(delay_off);
+ WaitUS(delay_off);
FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc.divisor);
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
LED_D_ON();
if(*(command++) == '0')
- SpinDelayUs(period_0);
+ WaitUS(period_0);
else
- SpinDelayUs(period_1);
+ WaitUS(period_1);
}
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LED_D_OFF();
- SpinDelayUs(delay_off);
+ WaitUS(delay_off);
FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc.divisor);
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
@@ -91,6 +91,7 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t periods, uint3
*/
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
@@ -216,6 +217,7 @@ void ReadTItag(void)
DbpString("Info: CRC is good");
}
}
+ StopTicks();
}
void WriteTIbyte(uint8_t b)
@@ -225,20 +227,20 @@ void WriteTIbyte(uint8_t b)
// modulate 8 bits out to the antenna
for (i=0; i<8; i++)
{
- if (b&(1<<i)) {
- // stop modulating antenna
+ if ( b & ( 1 << i ) ) {
+ // stop modulating antenna 1ms
LOW(GPIO_SSC_DOUT);
- SpinDelayUs(1000);
- // modulate antenna
- HIGH(GPIO_SSC_DOUT);
- SpinDelayUs(1000);
+ WaitUS(1000);
+ // modulate antenna 1ms
+ HIGH(GPIO_SSC_DOUT);
+ WaitUS(1000);
} else {
- // stop modulating antenna
+ // stop modulating antenna 1ms
LOW(GPIO_SSC_DOUT);
- SpinDelayUs(300);
- // modulate antenna
+ WaitUS(300);
+ // modulate antenna 1m
HIGH(GPIO_SSC_DOUT);
- SpinDelayUs(1700);
+ WaitUS(1700);
}
}
}
@@ -282,7 +284,7 @@ void AcquireTiType(void)
HIGH(GPIO_SSC_DOUT);
// Charge TI tag for 50ms.
- SpinDelay(50);
+ WaitMS(50);
// stop modulating antenna and listen
LOW(GPIO_SSC_DOUT);
@@ -322,6 +324,7 @@ void AcquireTiType(void)
// 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);
@@ -360,7 +363,7 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
// modulate antenna
HIGH(GPIO_SSC_DOUT);
- SpinDelay(50); // charge time
+ WaitMS(50); // charge time
WriteTIbyte(0xbb); // keyword
WriteTIbyte(0xeb); // password
@@ -377,7 +380,7 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
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();
@@ -386,61 +389,80 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
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();
- SpinDelayUs(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
@@ -843,13 +865,14 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
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();
}
@@ -946,13 +969,14 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
}
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();
}
@@ -1007,13 +1031,14 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
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();
}
@@ -1063,15 +1088,15 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
// 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
@@ -1092,7 +1117,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
if (ledcontrol) LED_A_OFF();
*high=code;
*low=code2;
- return;
+ break;
}
code=code2=0;
version=facilitycode=0;
@@ -1101,6 +1126,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
WDT_HIT();
}
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
DbpString("Stopped");
if (ledcontrol) LED_A_OFF();
}
@@ -1116,10 +1142,10 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
* 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 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
@@ -1128,7 +1154,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
// 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
@@ -1136,15 +1162,17 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
// 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);
- // Give it a bit of time for the resonant antenna to settle.
// measure antenna strength.
//int adcval = ((MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10);
- // where to save it
-
- SpinDelayUs(delay);
+
+ // Give it a bit of time for the resonant antenna to settle.
+ WaitUS(delay);
}
// Write one bit to card
@@ -1154,7 +1182,7 @@ 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)
@@ -1168,7 +1196,7 @@ void T55xxResetRead(void) {
// Trigger T55x7 in mode.
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelayUs(START_GAP);
+ WaitUS(START_GAP);
// reset tag - op code 00
T55xxWriteBit(0);
@@ -1198,7 +1226,7 @@ void T55xxWriteBlockExt(uint32_t Data, uint8_t Block, uint32_t Pwd, uint8_t arg)
// Trigger T55x7 in mode.
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelayUs(START_GAP);
+ WaitUS(START_GAP);
// Opcode 10
T55xxWriteBit(1);
@@ -1222,10 +1250,11 @@ void T55xxWriteBlockExt(uint32_t Data, uint8_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);
- //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);
@@ -1247,17 +1276,18 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
bool RegReadMode = (Block == 0xFF);
//clear buffer now so it does not interfere with timing later
- BigBuf_Clear_ext(false);
+ BigBuf_Clear_keep_EM();
//make sure block is at max 7
Block &= 0x7;
// Set up FPGA, 125kHz to power up the tag
LFSetupFPGAForADC(95, true);
+ //SpinDelay(3);
// Trigger T55x7 Direct Access Mode with start gap
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelayUs(START_GAP);
+ WaitUS(START_GAP);
// Opcode 1[page]
T55xxWriteBit(1);
@@ -1273,14 +1303,14 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
// Send Block number (if direct access mode)
if (!RegReadMode)
- for (i = 0x04; i != 0; i >>= 1)
- T55xxWriteBit(Block & i);
+ for (i = 0x04; i != 0; i >>= 1)
+ T55xxWriteBit(Block & i);
// Turn field on to read the response
TurnReadLFOn(READ_GAP);
// Acquisition
- doT55x7Acquisition(12000);
+ doT55x7Acquisition(7679);
// Turn the field off
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
@@ -1297,7 +1327,7 @@ void T55xxWakeUp(uint32_t Pwd){
// Trigger T55x7 Direct Access Mode
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelayUs(START_GAP);
+ WaitUS(START_GAP);
// Opcode 10
T55xxWriteBit(1);
@@ -1339,7 +1369,7 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) {
data[4] = manchesterEncode2Bytes(hi & 0xFFFF);
data[5] = manchesterEncode2Bytes(lo >> 16);
data[6] = manchesterEncode2Bytes(lo & 0xFFFF);
- } else {
+ } else {
// Ensure no more than 44 bits supplied
if (hi > 0xFFF) {
DbpString("Tags can only have 44 bits.");
@@ -1359,13 +1389,8 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) {
// data[0] = (((50-2)/2)<<T5555_BITRATE_SHIFT) | T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | last_block << T5555_MAXBLOCK_SHIFT;
LED_D_ON();
- // Program the data blocks for supplied ID
- // and the block 0 for HID format
WriteT55xx(data, 0, last_block+1);
-
LED_D_OFF();
-
- DbpString("DONE!");
}
void CopyIOtoT55x7(uint32_t hi, uint32_t lo) {
@@ -1379,7 +1404,6 @@ void CopyIOtoT55x7(uint32_t hi, uint32_t lo) {
// and the block 0 config
WriteT55xx(data, 0, 3);
LED_D_OFF();
- DbpString("DONE!");
}
// Clone Indala 64-bit tag by UID to T55x7
@@ -1393,7 +1417,6 @@ void CopyIndala64toT55x7(uint32_t hi, uint32_t lo) {
WriteT55xx(data, 0, 3);
//Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=2;Inverse data)
// T5567WriteBlock(0x603E1042,0);
- DbpString("DONE!");
}
// Clone Indala 224-bit tag by UID to T55x7
void CopyIndala224toT55x7(uint32_t uid1, uint32_t uid2, uint32_t uid3, uint32_t uid4, uint32_t uid5, uint32_t uid6, uint32_t uid7) {
@@ -1407,7 +1430,6 @@ void CopyIndala224toT55x7(uint32_t uid1, uint32_t uid2, uint32_t uid3, uint32_t
WriteT55xx(data, 0, 8);
//Alternative config for Indala (Extended mode;RF/32;PSK1 with RF/2;Maxblock=7;Inverse data)
// T5567WriteBlock(0x603E10E2,0);
- DbpString("DONE!");
}
// clone viking tag to T55xx
void CopyVikingtoT55xx(uint32_t block1, uint32_t block2, uint8_t Q5) {
@@ -1513,9 +1535,9 @@ void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo) {
//-----------------------------------
// 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
@@ -1534,7 +1556,7 @@ uint8_t * fwd_write_ptr; //forwardlink bit pointer
// 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 ) {
@@ -1628,20 +1650,20 @@ void SendForward(uint8_t fwd_bit_count) {
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 // ICEMAN: problem with (us) clock is 21.3us increments
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
- SpinDelayUs(16*8); //16 cycles on (8us each)
+ WaitUS(16*8); //16 cycles on (8us each) // ICEMAN: problem with (us) clock is 21.3us increments
// 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) // ICEMAN: problem with (us) clock is 21.3us increments
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(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
- SpinDelayUs(9*8); //16 cycles on (8us each)
+ WaitUS(16*8); //16 cycles on (8us each) // ICEMAN: problem with (us) clock is 21.3us increments
}
}
}
@@ -1649,22 +1671,20 @@ void SendForward(uint8_t fwd_bit_count) {
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
@@ -1677,14 +1697,10 @@ 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 );
- // 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) {
@@ -1717,7 +1733,53 @@ void EM4xWriteWord(uint32_t Data, uint8_t Address, uint32_t Pwd, uint8_t PwdMode
SendForward(fwd_bit_count);
//Wait for write to complete
- SpinDelay(20);
+ WaitMS(20);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
LED_D_OFF();
}
+
+void Cotag() {
+
+#define WAIT2200 { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); WaitUS(2200); }
+
+ LED_A_ON();
+
+ //clear buffer now so it does not interfere with timing later
+ BigBuf_Clear_keep_EM();
+
+ // Set up FPGA, 132kHz to power up the tag
+ FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+ 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);
+
+ // 50ms for the resonant antenna to settle.
+ SpinDelay(50);
+
+ // Now set up the SSC to get the ADC samples that are now streaming at us.
+ FpgaSetupSsc();
+ // start a 1.5ticks is 1us
+ StartTicks();
+
+ //send start pulse
+ TurnReadLFOn(800);
+ WAIT2200
+ TurnReadLFOn(3600);
+ WAIT2200
+ TurnReadLFOn(800);
+ WAIT2200
+ TurnReadLFOn(3600);
+
+ // Turn field on to read the response
+ TurnReadLFOn(READ_GAP);
+
+ // Acquisition
+ doT55x7Acquisition(20000);
+
+ // Turn the field off
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
+ cmd_send(CMD_ACK,0,0,0,0,0);
+ LED_A_OFF();
+}