#include "protocols.h"
#include "cmd.h"
#include "BigBuf.h"
+#include "fpgaloader.h"
#define arraylen(x) (sizeof(x)/sizeof((x)[0]))
#define ISO15693_MAX_RESPONSE_LENGTH 36 // allows read single block with the maximum block size of 256bits. Read multiple blocks not supported yet
#define ISO15693_MAX_COMMAND_LENGTH 45 // allows write single block with the maximum block size of 256bits. Write multiple blocks not supported yet
-// timing. Delays in SSP_CLK ticks.
-#define DELAY_READER_TO_ARM 8
-#define DELAY_ARM_TO_READER 1
-#define DELAY_ISO15693_VCD_TO_VICC 132 // 132/423.75kHz = 311.5us from end of EOF to start of tag response
-#define DELAY_ISO15693_VICC_TO_VCD 1017 // 1017/3.39MHz = 300us between end of tag response and next reader command
+// timing. Delays in SSP_CLK ticks.
+// SSP_CLK runs at 13,56MHz / 32 = 423.75kHz when simulating a tag
+#define DELAY_READER_TO_ARM_SIM 8
+#define DELAY_ARM_TO_READER_SIM 1
+#define DELAY_ISO15693_VCD_TO_VICC_SIM 132 // 132/423.75kHz = 311.5us from end of command EOF to start of tag response
+//SSP_CLK runs at 13.56MHz / 4 = 3,39MHz when acting as reader
+#define DELAY_ISO15693_VCD_TO_VICC_READER 1056 // 1056/3,39MHz = 311.5us from end of command EOF to start of tag response
+#define DELAY_ISO15693_VICC_TO_VCD_READER 1017 // 1017/3.39MHz = 300us between end of tag response and next reader command
// ---------------------------
// Signal Processing
// Transmit the command (to the tag) that was placed in cmd[].
static void TransmitTo15693Tag(const uint8_t *cmd, int len, uint32_t start_time)
{
- FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_TX);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_MODE_SEND_FULL_MOD);
+ FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER);
- while (GetCountSspClk() < start_time);
+ while (GetCountSspClk() < start_time) ;
LED_B_ON();
- for(int c = 0; c < len; ) {
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
- AT91C_BASE_SSC->SSC_THR = ~cmd[c];
- c++;
- }
- WDT_HIT();
- }
+ for(int c = 0; c < len; c++) {
+ uint8_t data = cmd[c];
+ for (int i = 0; i < 8; i++) {
+ uint16_t send_word = (data & 0x80) ? 0x0000 : 0xffff;
+ while (!(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY))) ;
+ AT91C_BASE_SSC->SSC_THR = send_word;
+ while (!(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY))) ;
+ AT91C_BASE_SSC->SSC_THR = send_word;
+ data <<= 1;
+ }
+ WDT_HIT();
+ }
LED_B_OFF();
}
+
//-----------------------------------------------------------------------------
// Transmit the tag response (to the reader) that was placed in cmd[].
//-----------------------------------------------------------------------------
// false if we are still waiting for some more
//=============================================================================
-#define NOISE_THRESHOLD 30 // don't try to correlate noise
+#define NOISE_THRESHOLD 160 // don't try to correlate noise
typedef struct DecodeTag {
enum {
while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXEMPTY));
// And put the FPGA in the appropriate mode
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_AMPLITUDE);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_SUBCARRIER_424_KHZ | FPGA_HF_READER_MODE_RECEIVE_AMPLITUDE);
// Setup and start DMA.
- FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+ FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER);
FpgaSetupSscDma((uint8_t*) dmaBuf, ISO15693_DMA_BUFFER_SIZE);
uint16_t *upTo = dmaBuf;
for (int i = 7; i >= 0; i--) {
if (Handle15693SampleFromReader((b >> i) & 0x01, &DecodeReader)) {
- *eof_time = bit_time + samples - DELAY_READER_TO_ARM; // end of EOF
+ *eof_time = bit_time + samples - DELAY_READER_TO_ARM_SIM; // end of EOF
gotFrame = true;
break;
}
samples, gotFrame, DecodeReader.state, DecodeReader.byteCount, DecodeReader.bitCount, DecodeReader.posCount);
if (DecodeReader.byteCount > 0) {
- LogTrace(DecodeReader.output, DecodeReader.byteCount, 0, 0, NULL, true);
+ LogTrace(DecodeReader.output, DecodeReader.byteCount, 0, *eof_time, NULL, true);
}
return DecodeReader.byteCount;
uint8_t *dest = BigBuf_get_addr();
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
- BuildIdentifyRequest();
-
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER);
+ FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER);
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+ BuildIdentifyRequest();
+
// Give the tags time to energize
LED_D_ON();
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
SpinDelay(100);
// Now send the command
- FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_TX);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_TX);
-
- LED_B_ON();
- for(int c = 0; c < ToSendMax; ) {
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
- AT91C_BASE_SSC->SSC_THR = ~ToSend[c];
- c++;
- }
- WDT_HIT();
- }
- LED_B_OFF();
+ TransmitTo15693Tag(ToSend, ToSendMax, 0);
// wait for last transfer to complete
- while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXEMPTY));
+ while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXEMPTY)) ;
- FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_AMPLITUDE);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_SUBCARRIER_424_KHZ | FPGA_HF_READER_MODE_RECEIVE_AMPLITUDE);
for(int c = 0; c < 4000; ) {
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
void SnoopIso15693(void)
{
+ LED_A_ON();
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
BigBuf_free();
clear_trace();
set_tracing(true);
-
// The DMA buffer, used to stream samples from the FPGA
uint16_t* dmaBuf = (uint16_t*)BigBuf_malloc(ISO15693_DMA_BUFFER_SIZE*sizeof(uint16_t));
uint16_t *upTo;
Dbprintf(" tag -> Reader: %i bytes", ISO15693_MAX_RESPONSE_LENGTH);
Dbprintf(" DMA: %i bytes", ISO15693_DMA_BUFFER_SIZE * sizeof(uint16_t));
}
- Dbprintf("Snoop started. Press button to stop.");
+ Dbprintf("Snoop started. Press PM3 Button to stop.");
- // Signal field is off, no reader signal, no tag signal
- LEDsoff();
- // And put the FPGA in the appropriate mode
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_SNOOP | FPGA_HF_READER_RX_XCORR_AMPLITUDE);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | FPGA_HF_READER_MODE_SNOOP_AMPLITUDE);
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
// Setup for the DMA.
- FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+ FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER);
upTo = dmaBuf;
FpgaSetupSscDma((uint8_t*) dmaBuf, ISO15693_DMA_BUFFER_SIZE);
// Initialize the proxmark as iso15k reader
-// (this might produces glitches that confuse some tags
static void Iso15693InitReader() {
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// Setup SSC
SpinDelay(10);
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
- FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+ FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER);
// Give the tags time to energize
LED_D_ON();
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER);
SpinDelay(250);
}
// Now wait for a response
if (recv != NULL) {
- answerLen = GetIso15693AnswerFromTag(recv, max_recv_len, DELAY_ISO15693_VCD_TO_VICC * 2);
+ answerLen = GetIso15693AnswerFromTag(recv, max_recv_len, DELAY_ISO15693_VCD_TO_VICC_READER * 2);
}
LED_A_OFF();
}
-//-----------------------------------------------------------------------------
-// Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector
+//---------------------------------------------------------------------------------------
+// Simulate an ISO15693 reader, perform anti-collision and then attempt to read a sector.
// all demodulation performed in arm rather than host. - greg
-//-----------------------------------------------------------------------------
+//---------------------------------------------------------------------------------------
void ReaderIso15693(uint32_t parameter)
{
LEDsoff();
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
// Setup SSC
- FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+ FpgaSetupSsc(FPGA_MAJOR_MODE_HF_READER);
// Start from off (no field generated)
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
// Give the tags time to energize
LED_D_ON();
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER);
SpinDelay(200);
StartCountSspClk();
// Now send the IDENTIFY command
BuildIdentifyRequest();
TransmitTo15693Tag(ToSend, ToSendMax, 0);
-
+
// Now wait for a response
- answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC * 2) ;
- uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD;
+ answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC_READER * 2) ;
+ uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER;
if (answerLen >=12) // we should do a better check than this
{
// read all pages
if (answerLen >= 12 && DEBUG) {
-
- // debugptr = BigBuf_get_addr();
-
- int i = 0;
- while (i < 32) { // sanity check, assume max 32 pages
+ for (int i = 0; i < 32; i++) { // sanity check, assume max 32 pages
BuildReadBlockRequest(TagUID, i);
TransmitTo15693Tag(ToSend, ToSendMax, start_time);
- int answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC * 2);
- start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD;
+ int answerLen = GetIso15693AnswerFromTag(answer, sizeof(answer), DELAY_ISO15693_VCD_TO_VICC_READER * 2);
+ start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER;
if (answerLen > 0) {
Dbprintf("READ SINGLE BLOCK %d returned %d octets:", i, answerLen);
DbdecodeIso15693Answer(answerLen, answer);
Dbhexdump(answerLen, answer, false);
if ( *((uint32_t*) answer) == 0x07160101 ) break; // exit on NoPageErr
}
- i++;
}
}
if ((cmd_len >= 5) && (cmd[0] & ISO15693_REQ_INVENTORY) && (cmd[1] == ISO15693_INVENTORY)) { // TODO: check more flags
bool slow = !(cmd[0] & ISO15693_REQ_DATARATE_HIGH);
- start_time = eof_time + DELAY_ISO15693_VCD_TO_VICC - DELAY_ARM_TO_READER;
+ start_time = eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM - DELAY_ARM_TO_READER_SIM;
TransmitTo15693Reader(ToSend, ToSendMax, start_time, slow);
}
Dbhexdump(cmd_len, cmd, false);
}
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
}
data[2] = 0; // mask length
datalen = AddCrc(data,3);
recvlen = SendDataTag(data, datalen, false, speed, recv, sizeof(recv), 0);
- uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VCD_TO_VICC;
+ uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER;
WDT_HIT();
if (recvlen>=12) {
Dbprintf("NoAFI UID=%s", sprintUID(NULL, &recv[2]));
data[2] = i & 0xFF;
datalen = AddCrc(data,4);
recvlen = SendDataTag(data, datalen, false, speed, recv, sizeof(recv), start_time);
- start_time = GetCountSspClk() + DELAY_ISO15693_VCD_TO_VICC;
+ start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER;
WDT_HIT();
if (recvlen >= 12) {
Dbprintf("AFI=%i UID=%s", i, sprintUID(NULL, &recv[2]));
uint8_t cmd[12];
uint16_t crc;
- // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block
- // followed by teh block data
+ // If we set the Option_Flag in this request, the VICC will respond with the security status of the block
+ // followed by the block data
// one sub-carrier, inventory, 1 slot, fast rate
cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit
// System Information command code
uint8_t cmd[14];
uint16_t crc;
- // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block
- // followed by teh block data
+ // If we set the Option_Flag in this request, the VICC will respond with the security status of the block
+ // followed by the block data
// one sub-carrier, inventory, 1 slot, fast rate
cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit
// READ Multi BLOCK command code
uint8_t cmd[14];
uint16_t crc;
- // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block
- // followed by teh block data
+ // If we set the Option_Flag in this request, the VICC will respond with the security status of the block
+ // followed by the block data
// one sub-carrier, inventory, 1 slot, fast rate
cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit
// READ BLOCK command code
uint8_t cmd[14];
uint16_t crc;
- // If we set the Option_Flag in this request, the VICC will respond with the secuirty status of the block
- // followed by teh block data
+ // If we set the Option_Flag in this request, the VICC will respond with the security status of the block
+ // followed by the block data
// one sub-carrier, inventory, 1 slot, fast rate
cmd[0] = (1 << 5) | (1 << 1); // no SELECT bit
// READ BLOCK command code
cmd[8] = 0x05;
cmd[9]= 0xe0; // always e0 (not exactly unique)
// Parameter
- cmd[10] = 0x05; // for custom codes this must be manufcturer code
+ cmd[10] = 0x05; // for custom codes this must be manufacturer code
cmd[11] = 0x00;
// cmd[12] = 0x00;
projects / proxmark3-svn / blobdiff