fix 'hf iclass sim'
authorpwpiwi <pwpiwi@users.noreply.github.com>
Mon, 2 Sep 2019 09:10:45 +0000 (11:10 +0200)
committerpwpiwi <pwpiwi@users.noreply.github.com>
Tue, 10 Sep 2019 06:42:59 +0000 (08:42 +0200)
* fix debug print on unhandled commands
* deduplicate: use sim functions from iso15693.c
* fix times in tracelog and 'hf list iclass' (sim only)
* don't check parity in 'hf list iclass'
* fix timing in TransmitTo15693Reader()

armsrc/iclass.c
armsrc/iso15693.c
armsrc/iso15693.h
client/cmdhflist.c
common/iso15693tools.h

index 23d407f7669dc4749062b79402883f64fcd269cf..daa44256673fc352e5db32d0013506a31624d389 100644 (file)
 #include "apps.h"
 #include "util.h"
 #include "string.h"
+#include "printf.h"
 #include "common.h"
 #include "cmd.h"
 #include "iso14443a.h"
+#include "iso15693.h"
 // Needed for CRC in emulation mode;
 // same construction as in ISO 14443;
 // different initial value (CRC_ICLASS)
@@ -754,132 +756,7 @@ void rotateCSN(uint8_t* originalCSN, uint8_t* rotatedCSN) {
        }
 }
 
-//-----------------------------------------------------------------------------
-// Wait for commands from reader
-// Stop when button is pressed
-// Or return true when command is captured
-//-----------------------------------------------------------------------------
-static int GetIClassCommandFromReader(uint8_t *received, int *len, int maxLen) {
-       // Set FPGA mode to "simulated ISO 14443 tag", no modulation (listen
-       // only, since we are receiving, not transmitting).
-       // Signal field is off with the appropriate LED
-       LED_D_OFF();
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
-
-       // Now run a `software UART' on the stream of incoming samples.
-       Uart.output = received;
-       Uart.byteCntMax = maxLen;
-       Uart.state = STATE_UNSYNCD;
-
-       for (;;) {
-               WDT_HIT();
-
-               if (BUTTON_PRESS()) return false;
-
-               if (AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
-                       AT91C_BASE_SSC->SSC_THR = 0x00;
-               }
-               if (AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
-                       uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-
-                       if (OutOfNDecoding(b & 0x0f)) {
-                               *len = Uart.byteCnt;
-                               return true;
-                       }
-               }
-       }
-}
-
-static uint8_t encode4Bits(const uint8_t b) {
-       uint8_t c = b & 0xF;
-       // OTA, the least significant bits first
-       //         The columns are
-       //               1 - Bit value to send
-       //               2 - Reversed (big-endian)
-       //               3 - Manchester Encoded
-       //               4 - Hex values
-
-       switch(c){
-       //                          1       2         3         4
-         case 15: return 0x55; // 1111 -> 1111 -> 01010101 -> 0x55
-         case 14: return 0x95; // 1110 -> 0111 -> 10010101 -> 0x95
-         case 13: return 0x65; // 1101 -> 1011 -> 01100101 -> 0x65
-         case 12: return 0xa5; // 1100 -> 0011 -> 10100101 -> 0xa5
-         case 11: return 0x59; // 1011 -> 1101 -> 01011001 -> 0x59
-         case 10: return 0x99; // 1010 -> 0101 -> 10011001 -> 0x99
-         case 9:  return 0x69; // 1001 -> 1001 -> 01101001 -> 0x69
-         case 8:  return 0xa9; // 1000 -> 0001 -> 10101001 -> 0xa9
-         case 7:  return 0x56; // 0111 -> 1110 -> 01010110 -> 0x56
-         case 6:  return 0x96; // 0110 -> 0110 -> 10010110 -> 0x96
-         case 5:  return 0x66; // 0101 -> 1010 -> 01100110 -> 0x66
-         case 4:  return 0xa6; // 0100 -> 0010 -> 10100110 -> 0xa6
-         case 3:  return 0x5a; // 0011 -> 1100 -> 01011010 -> 0x5a
-         case 2:  return 0x9a; // 0010 -> 0100 -> 10011010 -> 0x9a
-         case 1:  return 0x6a; // 0001 -> 1000 -> 01101010 -> 0x6a
-         default: return 0xaa; // 0000 -> 0000 -> 10101010 -> 0xaa
-
-       }
-}
-
-//-----------------------------------------------------------------------------
-// Prepare tag messages
-//-----------------------------------------------------------------------------
-static void CodeIClassTagAnswer(const uint8_t *cmd, int len) {
-
-       /*
-        * SOF comprises 3 parts;
-        * * An unmodulated time of 56.64 us
-        * * 24 pulses of 423.75 kHz (fc/32)
-        * * A logic 1, which starts with an unmodulated time of 18.88us
-        *   followed by 8 pulses of 423.75kHz (fc/32)
-        *
-        *
-        * EOF comprises 3 parts:
-        * - A logic 0 (which starts with 8 pulses of fc/32 followed by an unmodulated
-        *   time of 18.88us.
-        * - 24 pulses of fc/32
-        * - An unmodulated time of 56.64 us
-        *
-        *
-        * A logic 0 starts with 8 pulses of fc/32
-        * followed by an unmodulated time of 256/fc (~18,88us).
-        *
-        * A logic 0 starts with unmodulated time of 256/fc (~18,88us) followed by
-        * 8 pulses of fc/32 (also 18.88us)
-        *
-        * The mode FPGA_HF_SIMULATOR_MODULATE_424K_8BIT which we use to simulate tag,
-        * works like this.
-        * - A 1-bit input to the FPGA becomes 8 pulses on 423.5kHz (fc/32) (18.88us).
-        * - A 0-bit input to the FPGA becomes an unmodulated time of 18.88us
-        *
-        * In this mode the SOF can be written as 00011101 = 0x1D
-        * The EOF can be written as 10111000 = 0xb8
-        * A logic 1 is 01
-        * A logic 0 is 10
-        *
-        * */
-
-       int i;
-
-       ToSendReset();
-
-       // Send SOF
-       ToSend[++ToSendMax] = 0x1D;
-
-       for (i = 0; i < len; i++) {
-               uint8_t b = cmd[i];
-               ToSend[++ToSendMax] = encode4Bits(b & 0xF);       // Least significant half
-               ToSend[++ToSendMax] = encode4Bits((b >>4) & 0xF); // Most significant half
-       }
-
-       // Send EOF
-       ToSend[++ToSendMax] = 0xB8;
-       //lastProxToAirDuration  = 8*ToSendMax - 3*8 - 3*8;//Not counting zeroes in the beginning or end
-       // Convert from last byte pos to length
-       ToSendMax++;
-}
-
-// Only SOF
+// Encode SOF only
 static void CodeIClassTagSOF() {
        //So far a dummy implementation, not used
        //int lastProxToAirDuration =0;
@@ -897,43 +774,6 @@ static void AppendCrc(uint8_t *data, int len) {
        ComputeCrc14443(CRC_ICLASS, data, len, data+len, data+len+1);
 }
 
-static int SendIClassAnswer(uint8_t *resp, int respLen, int delay) {
-       int i = 0, d = 0;//, u = 0, d = 0;
-       uint8_t b = 0;
-
-       //FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K);
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR | FPGA_HF_SIMULATOR_MODULATE_424K_8BIT);
-
-       AT91C_BASE_SSC->SSC_THR = 0x00;
-       FpgaSetupSsc(FPGA_MAJOR_MODE_HF_SIMULATOR);
-       while (true) {
-               if ((AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)){
-                       b = AT91C_BASE_SSC->SSC_RHR;
-                       (void) b;
-               }
-               if (AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)){
-                       b = 0x00;
-                       if (d < delay) {
-                               // send 0x00 byte (causing a 2048/13,56MHz = 151us delay)
-                               d++;
-                       } else {
-                               if (i < respLen) {
-                                       b = resp[i];
-                               }
-                               i++;
-                       }
-                       AT91C_BASE_SSC->SSC_THR = b;
-               }
-
-//      if (i > respLen +4) break;
-               if (i > respLen + 1) break;
-               // send 2 more 0x00 bytes (causing a 302us delay)
-       }
-
-       return 0;
-}
-
-
 
 /**
  * @brief Does the actual simulation
@@ -1032,33 +872,33 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
        // Prepare card messages
        ToSendMax = 0;
 
-       // First card answer: SOF
+       // First card answer: SOF only
        CodeIClassTagSOF();
        memcpy(resp_sof, ToSend, ToSendMax);
        resp_sof_Len = ToSendMax;
 
        // Anticollision CSN
-       CodeIClassTagAnswer(anticoll_data, sizeof(anticoll_data));
+       CodeIso15693AsTag(anticoll_data, sizeof(anticoll_data));
        memcpy(resp_anticoll, ToSend, ToSendMax);
        resp_anticoll_len = ToSendMax;
 
        // CSN (block 0)
-       CodeIClassTagAnswer(csn_data, sizeof(csn_data));
+       CodeIso15693AsTag(csn_data, sizeof(csn_data));
        memcpy(resp_csn, ToSend, ToSendMax);
        resp_csn_len = ToSendMax;
 
        // Configuration (block 1)
-       CodeIClassTagAnswer(conf_data, sizeof(conf_data));
+       CodeIso15693AsTag(conf_data, sizeof(conf_data));
        memcpy(resp_conf, ToSend, ToSendMax);
        resp_conf_len = ToSendMax;
 
        // e-Purse (block 2)
-       CodeIClassTagAnswer(card_challenge_data, sizeof(card_challenge_data));
+       CodeIso15693AsTag(card_challenge_data, sizeof(card_challenge_data));
        memcpy(resp_cc, ToSend, ToSendMax);
        resp_cc_len = ToSendMax;
 
        // Application Issuer Area (block 5)
-       CodeIClassTagAnswer(aia_data, sizeof(aia_data));
+       CodeIso15693AsTag(aia_data, sizeof(aia_data));
        memcpy(resp_aia, ToSend, ToSendMax);
        resp_aia_len = ToSendMax;
 
@@ -1066,33 +906,22 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
        uint8_t *data_generic_trace = BigBuf_malloc(8 + 2); // 8 bytes data + 2byte CRC is max tag answer
        uint8_t *data_response = BigBuf_malloc( (8 + 2) * 2 + 2);
 
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
-       SpinDelay(100);
-       StartCountSspClk();
-       // We need to listen to the high-frequency, peak-detected path.
-       SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
-       FpgaSetupSsc(FPGA_MAJOR_MODE_HF_ISO14443A);
-
-       uint32_t time_0 = GetCountSspClk();
-       uint32_t t2r_time =0;
-       uint32_t r2t_time =0;
-
        LED_A_ON();
        bool buttonPressed = false;
-       uint8_t response_delay = 1;
        while (!exitLoop) {
                WDT_HIT();
-               response_delay = 1;
                LED_B_OFF();
                //Signal tracer
                // Can be used to get a trigger for an oscilloscope..
                LED_C_OFF();
 
-               if (!GetIClassCommandFromReader(receivedCmd, &len, 100)) {
+               uint32_t reader_eof_time = 0;
+               len = GetIso15693CommandFromReader(receivedCmd, MAX_FRAME_SIZE, &reader_eof_time);
+               if (len < 0) {
                        buttonPressed = true;
                        break;
                }
-               r2t_time = GetCountSspClk();
+               
                //Signal tracer
                LED_C_ON();
 
@@ -1116,7 +945,7 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
                        trace_data = anticoll_data;
                        trace_data_size = sizeof(anticoll_data);
                        //DbpString("Reader requests anticollission CSN:");
-
+                       
                } else if (receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4) { // read block
                        uint16_t blockNo = receivedCmd[1];
                        if (simulationMode != ICLASS_SIM_MODE_FULL) {
@@ -1157,7 +986,7 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
                                AppendCrc(data_generic_trace, 8);
                                trace_data = data_generic_trace;
                                trace_data_size = 10;
-                               CodeIClassTagAnswer(trace_data, trace_data_size);
+                               CodeIso15693AsTag(trace_data, trace_data_size);
                                memcpy(data_response, ToSend, ToSendMax);
                                modulated_response = data_response;
                                modulated_response_size = ToSendMax;
@@ -1183,26 +1012,18 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
                } else if (receivedCmd[0] == ICLASS_CMD_CHECK) {
                        // Reader random and reader MAC!!!
                        if (simulationMode == ICLASS_SIM_MODE_FULL) {
-                               //NR, from reader, is in receivedCmd +1
+                               //NR, from reader, is in receivedCmd+1
                                opt_doTagMAC_2(cipher_state, receivedCmd+1, data_generic_trace, diversified_key);
                                trace_data = data_generic_trace;
                                trace_data_size = 4;
-                               CodeIClassTagAnswer(trace_data, trace_data_size);
+                               CodeIso15693AsTag(trace_data, trace_data_size);
                                memcpy(data_response, ToSend, ToSendMax);
                                modulated_response = data_response;
                                modulated_response_size = ToSendMax;
-                               response_delay = 0; //We need to hurry here... (but maybe not too much... ??)
                                //exitLoop = true;
                        } else { // Not fullsim, we don't respond
                                // We do not know what to answer, so lets keep quiet
                                if (simulationMode == ICLASS_SIM_MODE_EXIT_AFTER_MAC) {
-                                       // dbprintf:ing ...
-                                       Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x"
-                                                          ,csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
-                                       Dbprintf("RDR:  (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len,
-                                                       receivedCmd[0], receivedCmd[1], receivedCmd[2],
-                                                       receivedCmd[3], receivedCmd[4], receivedCmd[5],
-                                                       receivedCmd[6], receivedCmd[7], receivedCmd[8]);
                                        if (reader_mac_buf != NULL) {
                                                // save NR and MAC for sim 2,4
                                                memcpy(reader_mac_buf + 8, receivedCmd + 1, 8);
@@ -1223,14 +1044,11 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
                        // OBS! If this is implemented, don't forget to regenerate the cipher_state
                        // We're expected to respond with the data+crc, exactly what's already in the receivedCmd
                        // receivedCmd is now UPDATE 1b | ADDRESS 1b | DATA 8b | Signature 4b or CRC 2b
-
-                       //Take the data...
                        memcpy(data_generic_trace, receivedCmd + 2, 8);
-                       //Add crc
                        AppendCrc(data_generic_trace, 8);
                        trace_data = data_generic_trace;
                        trace_data_size = 10;
-                       CodeIClassTagAnswer(trace_data, trace_data_size);
+                       CodeIso15693AsTag(trace_data, trace_data_size);
                        memcpy(data_response, ToSend, ToSendMax);
                        modulated_response = data_response;
                        modulated_response_size = ToSendMax;
@@ -1243,9 +1061,13 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
                        // Otherwise, we should answer 8bytes (block) + 2bytes CRC
 
                } else {
-                       //#db# Unknown command received from reader (len=5): 26 1 0 f6 a 44 44 44 44
                        // Never seen this command before
-                       print_result("Unhandled command received from reader ", receivedCmd, len);
+                       char debug_message[250]; // should be enough
+                       sprintf(debug_message, "Unhandled command (len = %d) received from reader:", len);
+                       for (int i = 0; i < len && strlen(debug_message) < sizeof(debug_message) - 3 - 1; i++) {
+                               sprintf(debug_message + strlen(debug_message), " %02x", receivedCmd[i]);
+                       }
+                       Dbprintf("%s", debug_message);
                        // Do not respond
                }
 
@@ -1253,22 +1075,11 @@ int doIClassSimulation(int simulationMode, uint8_t *reader_mac_buf) {
                A legit tag has about 330us delay between reader EOT and tag SOF.
                **/
                if (modulated_response_size > 0) {
-                       SendIClassAnswer(modulated_response, modulated_response_size, response_delay);
-                       t2r_time = GetCountSspClk();
+                       uint32_t response_time = reader_eof_time + DELAY_ISO15693_VCD_TO_VICC_SIM - DELAY_ARM_TO_READER_SIM;
+                       TransmitTo15693Reader(modulated_response, modulated_response_size, response_time, false);
+                       LogTrace(trace_data, trace_data_size, response_time + DELAY_ARM_TO_READER_SIM, response_time + (modulated_response_size << 6) + DELAY_ARM_TO_READER_SIM, NULL, false);
                }
 
-               uint8_t parity[MAX_PARITY_SIZE];
-               GetParity(receivedCmd, len, parity);
-               LogTrace(receivedCmd, len, (r2t_time-time_0) << 4, (r2t_time-time_0) << 4, parity, true);
-
-               if (trace_data != NULL) {
-                       GetParity(trace_data, trace_data_size, parity);
-                       LogTrace(trace_data, trace_data_size, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, false);
-               }
-               if (!get_tracing()) {
-                       DbpString("Trace full");
-                       //break;
-               }
        }
 
        LED_A_OFF();
@@ -1298,7 +1109,12 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain
        uint32_t simType = arg0;
        uint32_t numberOfCSNS = arg1;
 
+       // setup hardware for simulation:
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+       SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR | FPGA_HF_SIMULATOR_NO_MODULATION);
+       FpgaSetupSsc(FPGA_MAJOR_MODE_HF_SIMULATOR);
+       StartCountSspClk();
 
        // Enable and clear the trace
        set_tracing(true);
@@ -1330,6 +1146,12 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain
                                 // Button pressed
                                 break;
                        }
+                       Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
+                                       datain[i*8+0], datain[i*8+1], datain[i*8+2], datain[i*8+3],
+                                       datain[i*8+4], datain[i*8+5], datain[i*8+6], datain[i*8+7]);
+                       Dbprintf("NR,MAC: %02x %02x %02x %02x %02x %02x %02x %02x",
+                                       datain[i*8+ 8], datain[i*8+ 9], datain[i*8+10], datain[i*8+11],
+                                       datain[i*8+12], datain[i*8+13], datain[i*8+14], datain[i*8+15]);
                }
                cmd_send(CMD_ACK, CMD_SIMULATE_TAG_ICLASS, i, 0, mac_responses, i*16);
        } else if (simType == ICLASS_SIM_MODE_FULL) {
index f412051290094fba180cccaece08f5a66bf82f03..7fdf2a35056738991fea82d15e032a90fce12e52 100644 (file)
@@ -68,27 +68,14 @@ static int DEBUG = 0;
 
 ///////////////////////////////////////////////////////////////////////
 // ISO 15693 Part 2 - Air Interface
-// This section basicly contains transmission and receiving of bits
+// This section basically contains transmission and receiving of bits
 ///////////////////////////////////////////////////////////////////////
 
-#define Crc(data,datalen)     Iso15693Crc(data,datalen)
-#define AddCrc(data,datalen)  Iso15693AddCrc(data,datalen)
-#define sprintUID(target,uid)  Iso15693sprintUID(target,uid)
-
 // buffers
-#define ISO15693_DMA_BUFFER_SIZE        2048 // must be a power of 2
+#define ISO15693_DMA_BUFFER_SIZE       2048 // must be a power of 2
 #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. 
-// 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
 // ---------------------------
@@ -228,22 +215,72 @@ static void CodeIso15693AsReader256(uint8_t *cmd, int n)
 }
 
 
-static void CodeIso15693AsTag(uint8_t *cmd, int n)
-{
+// static uint8_t encode4Bits(const uint8_t b) {
+       // uint8_t c = b & 0xF;
+       // // OTA, the least significant bits first
+       // //         The columns are
+       // //               1 - Bit value to send
+       // //               2 - Reversed (big-endian)
+       // //               3 - Manchester Encoded
+       // //               4 - Hex values
+
+       // switch(c){
+       // //                          1       2         3         4
+         // case 15: return 0x55; // 1111 -> 1111 -> 01010101 -> 0x55
+         // case 14: return 0x95; // 1110 -> 0111 -> 10010101 -> 0x95
+         // case 13: return 0x65; // 1101 -> 1011 -> 01100101 -> 0x65
+         // case 12: return 0xa5; // 1100 -> 0011 -> 10100101 -> 0xa5
+         // case 11: return 0x59; // 1011 -> 1101 -> 01011001 -> 0x59
+         // case 10: return 0x99; // 1010 -> 0101 -> 10011001 -> 0x99
+         // case 9:  return 0x69; // 1001 -> 1001 -> 01101001 -> 0x69
+         // case 8:  return 0xa9; // 1000 -> 0001 -> 10101001 -> 0xa9
+         // case 7:  return 0x56; // 0111 -> 1110 -> 01010110 -> 0x56
+         // case 6:  return 0x96; // 0110 -> 0110 -> 10010110 -> 0x96
+         // case 5:  return 0x66; // 0101 -> 1010 -> 01100110 -> 0x66
+         // case 4:  return 0xa6; // 0100 -> 0010 -> 10100110 -> 0xa6
+         // case 3:  return 0x5a; // 0011 -> 1100 -> 01011010 -> 0x5a
+         // case 2:  return 0x9a; // 0010 -> 0100 -> 10011010 -> 0x9a
+         // case 1:  return 0x6a; // 0001 -> 1000 -> 01101010 -> 0x6a
+         // default: return 0xaa; // 0000 -> 0000 -> 10101010 -> 0xaa
+
+       // }
+// }
+
+void CodeIso15693AsTag(uint8_t *cmd, size_t len) {
+       /*
+        * SOF comprises 3 parts;
+        * * An unmodulated time of 56.64 us
+        * * 24 pulses of 423.75 kHz (fc/32)
+        * * A logic 1, which starts with an unmodulated time of 18.88us
+        *   followed by 8 pulses of 423.75kHz (fc/32)
+        *
+        * EOF comprises 3 parts:
+        * - A logic 0 (which starts with 8 pulses of fc/32 followed by an unmodulated
+        *   time of 18.88us.
+        * - 24 pulses of fc/32
+        * - An unmodulated time of 56.64 us
+        *
+        * A logic 0 starts with 8 pulses of fc/32
+        * followed by an unmodulated time of 256/fc (~18,88us).
+        *
+        * A logic 0 starts with unmodulated time of 256/fc (~18,88us) followed by
+        * 8 pulses of fc/32 (also 18.88us)
+        *
+        * A bit here becomes 8 pulses of fc/32. Therefore:
+        * The SOF can be written as 00011101 = 0x1D
+        * The EOF can be written as 10111000 = 0xb8
+        * A logic 1 is 01
+        * A logic 0 is 10
+        *
+        * */
+
        ToSendReset();
 
        // SOF
-       ToSendStuffBit(0);
-       ToSendStuffBit(0);
-       ToSendStuffBit(0);
-       ToSendStuffBit(1);
-       ToSendStuffBit(1);
-       ToSendStuffBit(1);
-       ToSendStuffBit(0);
-       ToSendStuffBit(1);
+       ToSend[++ToSendMax] = 0x1D;  // 00011101
 
        // data
-       for(int i = 0; i < n; i++) {
+       for(int i = 0; i < len; i++) {
                for(int j = 0; j < 8; j++) {
                        if ((cmd[i] >> j) & 0x01) {
                                        ToSendStuffBit(0);
@@ -256,14 +293,7 @@ static void CodeIso15693AsTag(uint8_t *cmd, int n)
        }
 
        // EOF
-       ToSendStuffBit(1);
-       ToSendStuffBit(0);
-       ToSendStuffBit(1);
-       ToSendStuffBit(1);
-       ToSendStuffBit(1);
-       ToSendStuffBit(0);
-       ToSendStuffBit(0);
-       ToSendStuffBit(0);
+       ToSend[++ToSendMax] = 0xB8; // 10111000
 
        ToSendMax++;
 }
@@ -297,41 +327,41 @@ static void TransmitTo15693Tag(const uint8_t *cmd, int len, uint32_t start_time)
 //-----------------------------------------------------------------------------
 // Transmit the tag response (to the reader) that was placed in cmd[].
 //-----------------------------------------------------------------------------
-static void TransmitTo15693Reader(const uint8_t *cmd, size_t len, uint32_t start_time, bool slow)
-{
+void TransmitTo15693Reader(const uint8_t *cmd, size_t len, uint32_t start_time, bool slow) {
        // don't use the FPGA_HF_SIMULATOR_MODULATE_424K_8BIT minor mode. It would spoil GetCountSspClk()
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR | FPGA_HF_SIMULATOR_MODULATE_424K);
 
        uint8_t shift_delay = start_time & 0x00000007;
-       uint8_t bitmask = 0x00;
-       for (int i = 0; i < shift_delay; i++) {
-               bitmask |= (0x01 << i);
-       }
 
        while (GetCountSspClk() < (start_time & 0xfffffff8)) ;
 
-       AT91C_BASE_SSC->SSC_THR = 0x00; // clear TXRDY
-
        LED_C_ON();
        uint8_t bits_to_shift = 0x00;
-    for(size_t c = 0; c <= len; c++) {
-               uint8_t bits_to_send = bits_to_shift << (8 - shift_delay) | (c==len?0x00:cmd[c]) >> shift_delay;
-               bits_to_shift = cmd[c] & bitmask;
+       uint8_t bits_to_send = 0x00;
+    for(size_t c = 0; c < len; c++) {
                for (int i = 7; i >= 0; i--) {
+                       uint8_t cmd_bits = ((cmd[c] >> i) & 0x01) ? 0xff : 0x00;
                        for (int j = 0; j < (slow?4:1); ) {
+                               bits_to_send = bits_to_shift << (8 - shift_delay) | cmd_bits >> shift_delay;
+                               bits_to_shift = cmd_bits;
                                if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) {
-                                       if (bits_to_send >> i & 0x01) {
-                                               AT91C_BASE_SSC->SSC_THR = 0xff;
-                                       } else {
-                                               AT91C_BASE_SSC->SSC_THR = 0x00;
-                                       }
+                                       AT91C_BASE_SSC->SSC_THR = bits_to_send;
                                        j++;
                                }
-                               WDT_HIT();
                        }
         }
+               WDT_HIT();
     }
+       // send the remaining bits, padded with 0:
+       bits_to_send = bits_to_shift << (8 - shift_delay);
+       for ( ; ; ) {
+               if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) {
+                       AT91C_BASE_SSC->SSC_THR = bits_to_send;
+                       break;
+               }
+       }
        LED_C_OFF();
+
 }
 
 
@@ -682,9 +712,9 @@ static void DecodeReaderReset(DecodeReader_t* DecodeReader)
 
 static int inline __attribute__((always_inline)) Handle15693SampleFromReader(uint8_t bit, DecodeReader_t *restrict DecodeReader)
 {
-       switch(DecodeReader->state) {
+       switch (DecodeReader->state) {
                case STATE_READER_UNSYNCD:
-                       if(!bit) {
+                       if (!bit) {
                                // we went low, so this could be the beginning of a SOF
                                DecodeReader->posCount = 1;
                                DecodeReader->state = STATE_READER_AWAIT_1ST_RISING_EDGE_OF_SOF;
@@ -693,14 +723,14 @@ static int inline __attribute__((always_inline)) Handle15693SampleFromReader(uin
 
                case STATE_READER_AWAIT_1ST_RISING_EDGE_OF_SOF:
                        DecodeReader->posCount++;
-                       if(bit) { // detected rising edge
-                               if(DecodeReader->posCount < 4) { // rising edge too early (nominally expected at 5)
+                       if (bit) { // detected rising edge
+                               if (DecodeReader->posCount < 4) { // rising edge too early (nominally expected at 5)
                                        DecodeReaderReset(DecodeReader);
                                } else { // SOF
                                        DecodeReader->state = STATE_READER_AWAIT_2ND_FALLING_EDGE_OF_SOF;
                                }
                        } else {
-                               if(DecodeReader->posCount > 5) { // stayed low for too long
+                               if (DecodeReader->posCount > 5) { // stayed low for too long
                                        DecodeReaderReset(DecodeReader);
                                } else {
                                        // do nothing, keep waiting
@@ -710,7 +740,7 @@ static int inline __attribute__((always_inline)) Handle15693SampleFromReader(uin
 
                case STATE_READER_AWAIT_2ND_FALLING_EDGE_OF_SOF:
                        DecodeReader->posCount++;
-                       if(!bit) { // detected a falling edge
+                       if (!bit) { // detected a falling edge
                                if (DecodeReader->posCount < 20) {         // falling edge too early (nominally expected at 21 earliest)
                                        DecodeReaderReset(DecodeReader);
                                } else if (DecodeReader->posCount < 23) {  // SOF for 1 out of 4 coding
@@ -723,7 +753,7 @@ static int inline __attribute__((always_inline)) Handle15693SampleFromReader(uin
                                        DecodeReader->state = STATE_READER_AWAIT_2ND_RISING_EDGE_OF_SOF;
                                }
                        } else {
-                               if(DecodeReader->posCount > 29) { // stayed high for too long
+                               if (DecodeReader->posCount > 29) { // stayed high for too long
                                        DecodeReaderReset(DecodeReader);
                                } else {
                                        // do nothing, keep waiting
@@ -881,19 +911,18 @@ static int inline __attribute__((always_inline)) Handle15693SampleFromReader(uin
 // Receive a command (from the reader to us, where we are the simulated tag),
 // and store it in the given buffer, up to the given maximum length. Keeps
 // spinning, waiting for a well-framed command, until either we get one
-// (returns true) or someone presses the pushbutton on the board (false).
+// (returns len) or someone presses the pushbutton on the board (returns -1).
 //
 // Assume that we're called with the SSC (to the FPGA) and ADC path set
 // correctly.
 //-----------------------------------------------------------------------------
 
-static int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint32_t *eof_time)
-{
+int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint32_t *eof_time) {
        int samples = 0;
        bool gotFrame = false;
        uint8_t b;
 
-       uint8_t *dmaBuf = BigBuf_malloc(ISO15693_DMA_BUFFER_SIZE);
+       uint8_t dmaBuf[ISO15693_DMA_BUFFER_SIZE];
 
        // the decoder data structure
        DecodeReader_t DecodeReader = {0};
@@ -910,21 +939,21 @@ static int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint3
        (void) temp;
        while (!(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)) ;
 
-       uint32_t bit_time = GetCountSspClk() & 0xfffffff8;
+       uint32_t dma_start_time = GetCountSspClk() & 0xfffffff8;
 
        // Setup and start DMA.
        FpgaSetupSscDma(dmaBuf, ISO15693_DMA_BUFFER_SIZE);
        uint8_t *upTo = dmaBuf;
 
-       for(;;) {
+       for (;;) {
                uint16_t behindBy = ((uint8_t*)AT91C_BASE_PDC_SSC->PDC_RPR - upTo) & (ISO15693_DMA_BUFFER_SIZE-1);
 
                if (behindBy == 0) continue;
 
                b = *upTo++;
-               if(upTo >= dmaBuf + ISO15693_DMA_BUFFER_SIZE) {                // we have read all of the DMA buffer content.
+               if (upTo >= dmaBuf + ISO15693_DMA_BUFFER_SIZE) {               // we have read all of the DMA buffer content.
                        upTo = dmaBuf;                                             // start reading the circular buffer from the beginning
-                       if(behindBy > (9*ISO15693_DMA_BUFFER_SIZE/10)) {
+                       if (behindBy > (9*ISO15693_DMA_BUFFER_SIZE/10)) {
                                Dbprintf("About to blow circular buffer - aborted! behindBy=%d", behindBy);
                                break;
                        }
@@ -936,7 +965,7 @@ static int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint3
 
                for (int i = 7; i >= 0; i--) {
                        if (Handle15693SampleFromReader((b >> i) & 0x01, &DecodeReader)) {
-                               *eof_time = bit_time + samples - DELAY_READER_TO_ARM_SIM; // end of EOF
+                               *eof_time = dma_start_time + samples - DELAY_READER_TO_ARM_SIM; // end of EOF
                                gotFrame = true;
                                break;
                        }
@@ -948,22 +977,24 @@ static int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint3
                }
 
                if (BUTTON_PRESS()) {
-                       DecodeReader.byteCount = 0;
+                       DecodeReader.byteCount = -1;
                        break;
                }
 
                WDT_HIT();
        }
 
-
        FpgaDisableSscDma();
-       BigBuf_free_keep_EM();
        
        if (DEBUG) Dbprintf("samples = %d, gotFrame = %d, Decoder: state = %d, len = %d, bitCount = %d, posCount = %d",
                            samples, gotFrame, DecodeReader.state, DecodeReader.byteCount, DecodeReader.bitCount, DecodeReader.posCount);
 
        if (DecodeReader.byteCount > 0) {
-               LogTrace(DecodeReader.output, DecodeReader.byteCount, 0, *eof_time, NULL, true);
+               uint32_t sof_time = *eof_time 
+                                               - DecodeReader.byteCount * (DecodeReader.Coding==CODING_1_OUT_OF_4?128:2048) // time for byte transfers
+                                               - 32  // time for SOF transfer
+                                               - 16; // time for EOF transfer
+               LogTrace(DecodeReader.output, DecodeReader.byteCount, sof_time, *eof_time, NULL, true);
        }
 
        return DecodeReader.byteCount;
@@ -985,7 +1016,7 @@ static void BuildIdentifyRequest(void)
        // no mask
        cmd[2] = 0x00;
        //Now the CRC
-       crc = Crc(cmd, 3);
+       crc = Iso15693Crc(cmd, 3);
        cmd[3] = crc & 0xff;
        cmd[4] = crc >> 8;
 
@@ -1219,7 +1250,7 @@ static void BuildReadBlockRequest(uint8_t *uid, uint8_t blockNumber )
        // Block number to read
        cmd[10] = blockNumber;
        //Now the CRC
-       crc = Crc(cmd, 11); // the crc needs to be calculated over 11 bytes
+       crc = Iso15693Crc(cmd, 11); // the crc needs to be calculated over 11 bytes
        cmd[11] = crc & 0xff;
        cmd[12] = crc >> 8;
 
@@ -1246,7 +1277,7 @@ static void BuildInventoryResponse(uint8_t *uid)
        cmd[8] = uid[1]; //0x05;
        cmd[9] = uid[0]; //0xe0;
        //Now the CRC
-       crc = Crc(cmd, 10);
+       crc = Iso15693Crc(cmd, 10);
        cmd[10] = crc & 0xff;
        cmd[11] = crc >> 8;
 
@@ -1341,7 +1372,7 @@ void DbdecodeIso15693Answer(int len, uint8_t *d) {
                        strncat(status,"NoErr ", DBD15STATLEN);
                }
 
-               crc=Crc(d,len-2);
+               crc=Iso15693Crc(d,len-2);
                if ( (( crc & 0xff ) == d[len-2]) && (( crc >> 8 ) == d[len-1]) )
                        strncat(status,"CrcOK",DBD15STATLEN);
                else
@@ -1526,12 +1557,12 @@ void BruteforceIso15693Afi(uint32_t speed)
        data[0] = ISO15693_REQ_DATARATE_HIGH | ISO15693_REQ_INVENTORY | ISO15693_REQINV_SLOT1;
        data[1] = ISO15693_INVENTORY;
        data[2] = 0; // mask length
-       datalen = AddCrc(data,3);
+       datalen = Iso15693AddCrc(data,3);
        recvlen = SendDataTag(data, datalen, false, speed, recv, sizeof(recv), 0);
        uint32_t start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER;
        WDT_HIT();
        if (recvlen>=12) {
-               Dbprintf("NoAFI UID=%s", sprintUID(NULL, &recv[2]));
+               Dbprintf("NoAFI UID=%s", Iso15693sprintUID(NULL, &recv[2]));
        }
 
        // now with AFI
@@ -1543,12 +1574,12 @@ void BruteforceIso15693Afi(uint32_t speed)
 
        for (int i = 0; i < 256; i++) {
                data[2] = i & 0xFF;
-               datalen = AddCrc(data,4);
+               datalen = Iso15693AddCrc(data,4);
                recvlen = SendDataTag(data, datalen, false, speed, recv, sizeof(recv), start_time);
                start_time = GetCountSspClk() + DELAY_ISO15693_VICC_TO_VCD_READER;
                WDT_HIT();
                if (recvlen >= 12) {
-                       Dbprintf("AFI=%i UID=%s", i, sprintUID(NULL, &recv[2]));
+                       Dbprintf("AFI=%i UID=%s", i, Iso15693sprintUID(NULL, &recv[2]));
                }
        }
        Dbprintf("AFI Bruteforcing done.");
@@ -1646,7 +1677,7 @@ void SetTag15693Uid(uint8_t *uid)
 
     for (int i=0; i<4; i++) {
         // Add the CRC
-        crc = Crc(cmd[i], 7);
+        crc = Iso15693Crc(cmd[i], 7);
         cmd[i][7] = crc & 0xff;
         cmd[i][8] = crc >> 8;
 
@@ -1702,7 +1733,7 @@ static void __attribute__((unused)) BuildSysInfoRequest(uint8_t *uid)
        cmd[8] = 0x05;
        cmd[9]= 0xe0; // always e0 (not exactly unique)
        //Now the CRC
-       crc = Crc(cmd, 10); // the crc needs to be calculated over 2 bytes
+       crc = Iso15693Crc(cmd, 10); // the crc needs to be calculated over 2 bytes
        cmd[10] = crc & 0xff;
        cmd[11] = crc >> 8;
 
@@ -1737,7 +1768,7 @@ static void __attribute__((unused)) BuildReadMultiBlockRequest(uint8_t *uid)
        // Number of Blocks to read
        cmd[11] = 0x2f; // read quite a few
        //Now the CRC
-       crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes
+       crc = Iso15693Crc(cmd, 12); // the crc needs to be calculated over 2 bytes
        cmd[12] = crc & 0xff;
        cmd[13] = crc >> 8;
 
@@ -1772,7 +1803,7 @@ static void __attribute__((unused)) BuildArbitraryRequest(uint8_t *uid,uint8_t C
 
 //     cmd[12] = 0x00;
 //     cmd[13] = 0x00; //Now the CRC
-       crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes
+       crc = Iso15693Crc(cmd, 12); // the crc needs to be calculated over 2 bytes
        cmd[12] = crc & 0xff;
        cmd[13] = crc >> 8;
 
@@ -1807,7 +1838,7 @@ static void __attribute__((unused)) BuildArbitraryCustomRequest(uint8_t uid[], u
 
 //     cmd[12] = 0x00;
 //     cmd[13] = 0x00; //Now the CRC
-       crc = Crc(cmd, 12); // the crc needs to be calculated over 2 bytes
+       crc = Iso15693Crc(cmd, 12); // the crc needs to be calculated over 2 bytes
        cmd[12] = crc & 0xff;
        cmd[13] = crc >> 8;
 
index 68df269339f51b479a937ad8ef2875fb98049027..f6cf29f1bed03ef590b4a204c976cb5a1c392209 100644 (file)
@@ -8,17 +8,31 @@
 // Routines to support ISO 15693.
 //-----------------------------------------------------------------------------
 
-#ifndef __ISO15693_H
-#define __ISO15693_H
+#ifndef ISO15693_H__
+#define ISO15693_H__
 
 #include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
 
+// 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
+
+void CodeIso15693AsTag(uint8_t *cmd, size_t len);
+int GetIso15693CommandFromReader(uint8_t *received, size_t max_len, uint32_t *eof_time);
+void TransmitTo15693Reader(const uint8_t *cmd, size_t len, uint32_t start_time, bool slow);
 void SnoopIso15693(void);
 void AcquireRawAdcSamplesIso15693(void);
 void ReaderIso15693(uint32_t parameter);
 void SimTagIso15693(uint32_t parameter, uint8_t *uid);
 void BruteforceIso15693Afi(uint32_t speed);
-void DirectTag15693Command(uint32_t datalen,uint32_t speed, uint32_t recv, uint8_t data[]); 
+void DirectTag15693Command(uint32_t datalen, uint32_t speed, uint32_t recv, uint8_t data[]);
 void SetTag15693Uid(uint8_t *uid);
 void SetDebugIso15693(uint32_t flag);
 
index 5384bfce49aa706ec82b45c33098daa7a07177ae..1b8e0955b4fd89c7b3102d5e80765d381ae8d458 100644 (file)
@@ -213,30 +213,29 @@ uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
 }
 
 
-void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
-{
+void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
        switch(cmd[0])
        {
-       case ICLASS_CMD_ACTALL:      snprintf(exp,size,"ACTALL"); break;
-       case ICLASS_CMD_READ_OR_IDENTIFY:{
-               if(cmdsize > 1){
+       case ICLASS_CMD_ACTALL:      snprintf(exp, size, "ACTALL"); break;
+       case ICLASS_CMD_READ_OR_IDENTIFY: {
+               if (cmdsize > 1){
                        snprintf(exp,size,"READ(%d)",cmd[1]);
-               }else{
+               } else {
                        snprintf(exp,size,"IDENTIFY");
                }
                break;
        }
-       case ICLASS_CMD_SELECT:      snprintf(exp,size,"SELECT"); break;
-       case ICLASS_CMD_PAGESEL:     snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break;
-       case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break;
-       case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break;
-       case ICLASS_CMD_CHECK:       snprintf(exp,size,"CHECK"); break;
-       case ICLASS_CMD_DETECT:      snprintf(exp,size,"DETECT"); break;
-       case ICLASS_CMD_HALT:        snprintf(exp,size,"HALT"); break;
-       case ICLASS_CMD_UPDATE:      snprintf(exp,size,"UPDATE(%d)",cmd[1]); break;
-       case ICLASS_CMD_ACT:         snprintf(exp,size,"ACT"); break;
-       case ICLASS_CMD_READ4:       snprintf(exp,size,"READ4(%d)",cmd[1]); break;
-       default:                     snprintf(exp,size,"?"); break;
+       case ICLASS_CMD_SELECT:      snprintf(exp,size, "SELECT"); break;
+       case ICLASS_CMD_PAGESEL:     snprintf(exp,size, "PAGESEL(%d)", cmd[1]); break;
+       case ICLASS_CMD_READCHECK_KC:snprintf(exp,size, "READCHECK[Kc](%d)", cmd[1]); break;
+       case ICLASS_CMD_READCHECK_KD:snprintf(exp,size, "READCHECK[Kd](%d)", cmd[1]); break;
+       case ICLASS_CMD_CHECK:       snprintf(exp,size, "CHECK"); break;
+       case ICLASS_CMD_DETECT:      snprintf(exp,size, "DETECT"); break;
+       case ICLASS_CMD_HALT:        snprintf(exp,size, "HALT"); break;
+       case ICLASS_CMD_UPDATE:      snprintf(exp,size, "UPDATE(%d)",cmd[1]); break;
+       case ICLASS_CMD_ACT:         snprintf(exp,size, "ACT"); break;
+       case ICLASS_CMD_READ4:       snprintf(exp,size, "READ4(%d)",cmd[1]); break;
+       default:                     snprintf(exp,size, "?"); break;
        }
        return;
 }
@@ -901,6 +900,13 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                }
        }
 
+       // adjust for different time scales
+       if (protocol == ICLASS || protocol == ISO_15693) {
+               first_timestamp *= 32;
+               timestamp *= 32;
+               duration *= 32;
+       }
+       
        //Check the CRC status
        uint8_t crcStatus = 2;
 
@@ -940,6 +946,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                uint8_t parityBits = parityBytes[j>>3];
                if (protocol != ISO_14443B
                        && protocol != ISO_15693
+                       && protocol != ICLASS
                        && protocol != ISO_7816_4
                        && (isResponse || protocol == ISO_14443A)
                        && (oddparity8(frame[j]) != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
@@ -950,8 +957,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
        }
 
        if (markCRCBytes) {
-               if(crcStatus == 0 || crcStatus == 1)
-               {//CRC-command
+               if (crcStatus == 0 || crcStatus == 1) { //CRC-command
                        char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
                        (*pos1) = '[';
                        char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
@@ -978,8 +984,7 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
        if (protocol == PROTO_MIFARE)
                annotateMifare(explanation, sizeof(explanation), frame, data_len, parityBytes, parity_len, isResponse);
 
-       if(!isResponse)
-       {
+       if (!isResponse) {
                switch(protocol) {
                        case ICLASS:      annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
                        case ISO_14443A:  annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
@@ -1027,6 +1032,11 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
 
        if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
                uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
+               // adjust for different time scales
+               if (protocol == ICLASS || protocol == ISO_15693) {
+                       next_timestamp *= 32;
+               }
+
                PrintAndLog(" %10d | %10d | %s | fdt (Frame Delay Time): %d",
                        (EndOfTransmissionTimestamp - first_timestamp),
                        (next_timestamp - first_timestamp),
index d9f59cc69893122880f7e45c7a090d653620e54c..ceb6393ecc079c797c7df77c63d70f1a3dae9653 100644 (file)
@@ -1,8 +1,8 @@
 // ISO15693 commons
 // Adrian Dabrowski 2010 and others, GPLv2
 
-#ifndef ISO15693_H__
-#define ISO15693_H__
+#ifndef ISO15693TOOLS_H__
+#define ISO15693TOOLS_H__
 
 // ISO15693 CRC
 #define ISO15693_CRC_PRESET  (uint16_t)0xFFFF
@@ -11,7 +11,7 @@
 
 uint16_t Iso15693Crc(uint8_t *v, int n);
 int Iso15693AddCrc(uint8_t *req, int n);
-char* Iso15693sprintUID(char *target,uint8_t *uid);
+char* Iso15693sprintUID(char *target, uint8_t *uid);
 unsigned short iclass_crc16(char *data_p, unsigned short length);
 
 #endif
Impressum, Datenschutz