]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/appmain.c
CHG: Added calling clear bigbuff to zero out it also, instead of just "free" it.
[proxmark3-svn] / armsrc / appmain.c
index f3136fa06cd38336f1f3ddd7b160c86b3a9cc2fa..2ba3d75c8762fcd0475691946a4f69c3d8c91eb1 100644 (file)
 // executes.
 //-----------------------------------------------------------------------------
 
-#include "../common/usb_cdc.h"
-#include "../common/cmd.h"
-#include "../include/proxmark3.h"
-#include "../include/hitag2.h"
+#include "usb_cdc.h"
+#include "cmd.h"
+
+#include "proxmark3.h"
 #include "apps.h"
 #include "util.h"
 #include "printf.h"
 #include "string.h"
+
 #include <stdarg.h>
+
 #include "legicrf.h"
+#include "hitag2.h"
+#include "hitagS.h"
 #include "lfsampling.h"
 #include "BigBuf.h"
-
+#include "mifareutil.h"
+#include "pcf7931.h"
 #ifdef WITH_LCD
  #include "LCD.h"
 #endif
 
+// Craig Young - 14a stand-alone code
+#ifdef WITH_ISO14443a_StandAlone
+ #include "iso14443a.h"
+ #include "protocols.h"
+#endif
+
 #define abs(x) ( ((x)<0) ? -(x) : (x) )
 
 //=============================================================================
@@ -37,7 +48,7 @@
 
 #define TOSEND_BUFFER_SIZE (9*MAX_FRAME_SIZE + 1 + 1 + 2)  // 8 data bits and 1 parity bit per payload byte, 1 correction bit, 1 SOC bit, 2 EOC bits 
 uint8_t ToSend[TOSEND_BUFFER_SIZE];
-int ToSendMax;
+int ToSendMax = 0;
 static int ToSendBit;
 struct common_area common_area __attribute__((section(".commonarea")));
 
@@ -47,19 +58,17 @@ void ToSendReset(void)
        ToSendBit = 8;
 }
 
-void ToSendStuffBit(int b)
-{
+void ToSendStuffBit(int b) {
        if(ToSendBit >= 8) {
-               ToSendMax++;
+               ++ToSendMax;
                ToSend[ToSendMax] = 0;
                ToSendBit = 0;
        }
 
-       if(b) {
+       if(b)
                ToSend[ToSendMax] |= (1 << (7 - ToSendBit));
-       }
 
-       ToSendBit++;
+       ++ToSendBit;
 
        if(ToSendMax >= sizeof(ToSend)) {
                ToSendBit = 0;
@@ -71,22 +80,35 @@ void ToSendStuffBit(int b)
 // Debug print functions, to go out over USB, to the usual PC-side client.
 //=============================================================================
 
-void DbpString(char *str)
-{
-  byte_t len = strlen(str);
-  cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len);
+void DbpStringEx(char *str, uint32_t cmd){
+       byte_t len = strlen(str);
+       cmd_send(CMD_DEBUG_PRINT_STRING,len, cmd,0,(byte_t*)str,len);
+}
+
+void DbpString(char *str) {
+       DbpStringEx(str, 0);
 }
 
 #if 0
-void DbpIntegers(int x1, int x2, int x3)
-{
-  cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
+void DbpIntegers(int x1, int x2, int x3) {
+       cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
 }
 #endif
+void DbprintfEx(uint32_t cmd, const char *fmt, ...) {
+       // should probably limit size here; oh well, let's just use a big buffer
+       char output_string[128] = {0x00};
+       va_list ap;
+
+       va_start(ap, fmt);
+       kvsprintf(fmt, output_string, 10, ap);
+       va_end(ap);
+
+       DbpStringEx(output_string, cmd);
+}
 
 void Dbprintf(const char *fmt, ...) {
-// should probably limit size here; oh well, let's just use a big buffer
-       char output_string[128];
+       // should probably limit size here; oh well, let's just use a big buffer
+       char output_string[128] = {0x00};
        va_list ap;
 
        va_start(ap, fmt);
@@ -98,28 +120,27 @@ void Dbprintf(const char *fmt, ...) {
 
 // prints HEX & ASCII
 void Dbhexdump(int len, uint8_t *d, bool bAsci) {
-       int l=0,i;
+       int l=0, i;
        char ascii[9];
     
        while (len>0) {
-               if (len>8) l=8;
-               else l=len;
+
+               l = (len>8) ? 8 : len;
                
                memcpy(ascii,d,l);
                ascii[l]=0;
                
                // filter safe ascii
-               for (i=0;i<l;i++)
+               for (i=0; i<l; ++i)
                        if (ascii[i]<32 || ascii[i]>126) ascii[i]='.';
         
-               if (bAsci) {
+               if (bAsci)
                        Dbprintf("%-8s %*D",ascii,l,d," ");
-               } else {
+               else
                        Dbprintf("%*D",l,d," ");
-               }
         
-               len-=8;
-               d+=8;           
+               len -= 8;
+               d += 8;         
        }
 }
 
@@ -153,10 +174,9 @@ static int ReadAdc(int ch)
 
        AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
 
-       while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
-               ;
+       while (!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) ;
+       
        d = AT91C_BASE_ADC->ADC_CDR[ch];
-
        return d;
 }
 
@@ -165,20 +185,18 @@ int AvgAdc(int ch) // was static - merlok
        int i;
        int a = 0;
 
-       for(i = 0; i < 32; i++) {
+       for(i = 0; i < 32; ++i)
                a += ReadAdc(ch);
-       }
 
        return (a + 15) >> 5;
 }
 
-void MeasureAntennaTuning(void)
-{
+void MeasureAntennaTuning(void) {
        uint8_t LF_Results[256];
        int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0 
        int vLf125 = 0, vLf134 = 0, vHf = 0;    // in mV
 
-  LED_B_ON();
+       LED_B_ON();
 
 /*
  * Sweeps the useful LF range of the proxmark from
@@ -191,8 +209,9 @@ void MeasureAntennaTuning(void)
   
        FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
+
        for (i=255; i>=19; i--) {
-    WDT_HIT();
+               WDT_HIT();
                FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
                SpinDelay(20);
                adcval = ((MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10);
@@ -210,95 +229,37 @@ void MeasureAntennaTuning(void)
 
        for (i=18; i >= 0; i--) LF_Results[i] = 0;
        
-  LED_A_ON();
+       LED_A_ON();
        // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
-       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
        SpinDelay(20);
        vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
 
        cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125 | (vLf134<<16), vHf, peakf | (peakv<<16), LF_Results, 256);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-  LED_A_OFF();
-  LED_B_OFF();
-  return;
+
+       LEDsoff();
 }
 
-void MeasureAntennaTuningHf(void)
-{
+void MeasureAntennaTuningHf(void) {
        int vHf = 0;    // in mV
-
-       DbpString("Measuring HF antenna, press button to exit");
-
        // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
 
-       for (;;) {
+       while ( !BUTTON_PRESS() ){
                SpinDelay(20);
                vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
-
-               Dbprintf("%d mV",vHf);
-               if (BUTTON_PRESS()) break;
+               //Dbprintf("%d mV",vHf);
+               DbprintfEx(CMD_MEASURE_ANTENNA_TUNING_HF, "%d mV",vHf);
        }
-       DbpString("cancelled");
-
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-
+       DbpString("cancelled");
 }
 
 
-void SimulateTagHfListen(void)
-{
-       // ToDo: historically this used the free buffer, which was 2744 Bytes long. 
-       // There might be a better size to be defined:
-       #define HF_14B_SNOOP_BUFFER_SIZE 2744
-       uint8_t *dest = BigBuf_malloc(HF_14B_SNOOP_BUFFER_SIZE);
-       uint8_t v = 0;
-       int i;
-       int p = 0;
-
-       // We're using this mode just so that I can test it out; the simulated
-       // tag mode would work just as well and be simpler.
-       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR | FPGA_HF_READER_RX_XCORR_848_KHZ | FPGA_HF_READER_RX_XCORR_SNOOP);
-
-       // We need to listen to the high-frequency, peak-detected path.
-       SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
-
-       FpgaSetupSsc();
-
-       i = 0;
-       for(;;) {
-               if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
-                       AT91C_BASE_SSC->SSC_THR = 0xff;
-               }
-               if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
-                       uint8_t r = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
-
-                       v <<= 1;
-                       if(r & 1) {
-                               v |= 1;
-                       }
-                       p++;
-
-                       if(p >= 8) {
-                               dest[i] = v;
-                               v = 0;
-                               p = 0;
-                               i++;
-
-                               if(i >= HF_14B_SNOOP_BUFFER_SIZE) {
-                                       break;
-                               }
-                       }
-               }
-       }
-       DbpString("simulate tag (now type bitsamples)");
-}
-
-void ReadMem(int addr)
-{
+void ReadMem(int addr) {
        const uint8_t *data = ((uint8_t *)addr);
 
        Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
@@ -308,45 +269,92 @@ void ReadMem(int addr)
 /* osimage version information is linked in */
 extern struct version_information version_information;
 /* bootrom version information is pointed to from _bootphase1_version_pointer */
-extern char *_bootphase1_version_pointer, _flash_start, _flash_end;
+extern char *_bootphase1_version_pointer, _flash_start, _flash_end, _bootrom_start, _bootrom_end, __data_src_start__;
 void SendVersion(void)
 {
-       char temp[512]; /* Limited data payload in USB packets */
-       DbpString("Prox/RFID mark3 RFID instrument");
+       char temp[USB_CMD_DATA_SIZE]; /* Limited data payload in USB packets */
+       char VersionString[USB_CMD_DATA_SIZE] = { '\0' };
 
        /* Try to find the bootrom version information. Expect to find a pointer at
         * symbol _bootphase1_version_pointer, perform slight sanity checks on the
         * pointer, then use it.
         */
        char *bootrom_version = *(char**)&_bootphase1_version_pointer;
+       
        if( bootrom_version < &_flash_start || bootrom_version >= &_flash_end ) {
-               DbpString("bootrom version information appears invalid");
+               strcat(VersionString, "bootrom version information appears invalid\n");
        } else {
                FormatVersionInformation(temp, sizeof(temp), "bootrom: ", bootrom_version);
-               DbpString(temp);
+               strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
        }
 
        FormatVersionInformation(temp, sizeof(temp), "os: ", &version_information);
-       DbpString(temp);
+       strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
+
+       FpgaGatherVersion(FPGA_BITSTREAM_LF, temp, sizeof(temp));
+       strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
+       
+       FpgaGatherVersion(FPGA_BITSTREAM_HF, temp, sizeof(temp));
+       strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1);
 
-       FpgaGatherVersion(temp, sizeof(temp));
-       DbpString(temp);
-       // Send Chip ID
-       cmd_send(CMD_ACK,*(AT91C_DBGU_CIDR),0,0,NULL,0);
+       // Send Chip ID and used flash memory
+       uint32_t text_and_rodata_section_size = (uint32_t)&__data_src_start__ - (uint32_t)&_flash_start;
+       uint32_t compressed_data_section_size = common_area.arg1;
+       cmd_send(CMD_ACK, *(AT91C_DBGU_CIDR), text_and_rodata_section_size + compressed_data_section_size, 0, VersionString, strlen(VersionString));
 }
 
-#ifdef WITH_LF
-// samy's sniff and repeat routine
-void SamyRun()
+// measure the USB Speed by sending SpeedTestBufferSize bytes to client and measuring the elapsed time.
+// Note: this mimics GetFromBigbuf(), i.e. we have the overhead of the UsbCommand structure included.
+void printUSBSpeed(void) 
 {
-       DbpString("Stand-alone mode! No PC necessary.");
-       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+       Dbprintf("USB Speed:");
+       Dbprintf("  Sending USB packets to client...");
 
-       // 3 possible options? no just 2 for now
-#define OPTS 2
+       #define USB_SPEED_TEST_MIN_TIME 1500    // in milliseconds
+       uint8_t *test_data = BigBuf_get_addr();
+       uint32_t end_time;
 
-       int high[OPTS], low[OPTS];
+       uint32_t start_time = end_time = GetTickCount();
+       uint32_t bytes_transferred = 0;
+
+       LED_B_ON();
+       while(end_time < start_time + USB_SPEED_TEST_MIN_TIME) {
+               cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, 0, USB_CMD_DATA_SIZE, 0, test_data, USB_CMD_DATA_SIZE);
+               end_time = GetTickCount();
+               bytes_transferred += USB_CMD_DATA_SIZE;
+       }
+       LED_B_OFF();
 
+       Dbprintf("  Time elapsed:      %dms", end_time - start_time);
+       Dbprintf("  Bytes transferred: %d", bytes_transferred);
+       Dbprintf("  USB Transfer Speed PM3 -> Client = %d Bytes/s", 
+               1000 * bytes_transferred / (end_time - start_time));
+
+}
+       
+/**
+  * Prints runtime information about the PM3.
+**/
+void SendStatus(void) {
+       BigBuf_print_status();
+       Fpga_print_status();
+       printConfig(); //LF Sampling config
+       printUSBSpeed();
+       Dbprintf("Various");
+       Dbprintf("  MF_DBGLEVEL........%d", MF_DBGLEVEL);
+       Dbprintf("  ToSendMax..........%d", ToSendMax);
+       Dbprintf("  ToSendBit..........%d", ToSendBit);
+       Dbprintf("  ToSend BUFFERSIZE..%d", TOSEND_BUFFER_SIZE);
+
+       cmd_send(CMD_ACK,1,0,0,0,0);
+}
+
+#if defined(WITH_ISO14443a_StandAlone) || defined(WITH_LF)
+
+#define OPTS 2
+void StandAloneMode()
+{
+       DbpString("Stand-alone mode! No PC necessary.");
        // Oooh pretty -- notify user we're in elite samy mode now
        LED(LED_RED,    200);
        LED(LED_ORANGE, 200);
@@ -357,7 +365,270 @@ void SamyRun()
        LED(LED_GREEN,  200);
        LED(LED_ORANGE, 200);
        LED(LED_RED,    200);
+}
+#endif
+
+#ifdef WITH_ISO14443a_StandAlone
+void StandAloneMode14a()
+{
+       StandAloneMode();
+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
+       int selected = 0;
+       int playing = 0, iGotoRecord = 0, iGotoClone = 0;
+       int cardRead[OPTS] = {0};
+       uint8_t readUID[10] = {0};
+       uint32_t uid_1st[OPTS]={0};
+       uint32_t uid_2nd[OPTS]={0};
+       uint32_t uid_tmp1 = 0;
+       uint32_t uid_tmp2 = 0;
+       iso14a_card_select_t hi14a_card[OPTS];
+
+       uint8_t params = (MAGIC_SINGLE | MAGIC_DATAIN);
+                                       
+       LED(selected + 1, 0);
+
+       for (;;)
+       {
+               usb_poll();
+               WDT_HIT();
+               SpinDelay(300);
+
+               if (iGotoRecord == 1 || cardRead[selected] == 0)
+               {
+                       iGotoRecord = 0;
+                       LEDsoff();
+                       LED(selected + 1, 0);
+                       LED(LED_RED2, 0);
+
+                       // record
+                       Dbprintf("Enabling iso14443a reader mode for [Bank: %u]...", selected);
+                       /* need this delay to prevent catching some weird data */
+                       SpinDelay(500);
+                       /* Code for reading from 14a tag */
+                       uint8_t uid[10] = {0};
+                       uint32_t cuid = 0;
+                       iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
+
+                       for ( ; ; )
+                       {
+                               WDT_HIT();
+                               if (BUTTON_PRESS()) {
+                                       if (cardRead[selected]) {
+                                               Dbprintf("Button press detected -- replaying card in bank[%d]", selected);
+                                               break;
+                                       }
+                                       else if (cardRead[(selected+1)%OPTS]) {
+                                               Dbprintf("Button press detected but no card in bank[%d] so playing from bank[%d]", selected, (selected+1)%OPTS);
+                                               selected = (selected+1)%OPTS;
+                                               break; // playing = 1;
+                                       }
+                                       else {
+                                               Dbprintf("Button press detected but no stored tag to play. (Ignoring button)");
+                                               SpinDelay(300);
+                                       }
+                               }
+                               if (!iso14443a_select_card(uid, &hi14a_card[selected], &cuid, true, 0))
+                                       continue;
+                               else
+                               {
+                                       Dbprintf("Read UID:"); Dbhexdump(10,uid,0);
+                                       memcpy(readUID,uid,10*sizeof(uint8_t));
+                                       uint8_t *dst = (uint8_t *)&uid_tmp1;
+                                       // Set UID byte order
+                                       for (int i=0; i<4; i++)
+                                               dst[i] = uid[3-i];
+                                       dst = (uint8_t *)&uid_tmp2;
+                                       for (int i=0; i<4; i++)
+                                               dst[i] = uid[7-i];
+                                       if (uid_1st[(selected+1)%OPTS] == uid_tmp1 && uid_2nd[(selected+1)%OPTS] == uid_tmp2) {
+                                               Dbprintf("Card selected has same UID as what is stored in the other bank. Skipping.");
+                                       }
+                                       else {
+                                               if (uid_tmp2) {
+                                                       Dbprintf("Bank[%d] received a 7-byte UID",selected);
+                                                       uid_1st[selected] = (uid_tmp1)>>8;
+                                                       uid_2nd[selected] = (uid_tmp1<<24) + (uid_tmp2>>8);
+                                               }
+                                               else {
+                                                       Dbprintf("Bank[%d] received a 4-byte UID",selected);
+                                                       uid_1st[selected] = uid_tmp1;
+                                                       uid_2nd[selected] = uid_tmp2;
+                                               }
+                                       break;
+                               }
+                       }
+                       }
+                       Dbprintf("ATQA = %02X%02X",hi14a_card[selected].atqa[0],hi14a_card[selected].atqa[1]);
+                       Dbprintf("SAK = %02X",hi14a_card[selected].sak);
+                       LEDsoff();
+                       LED(LED_GREEN,  200);
+                       LED(LED_ORANGE, 200);
+                       LED(LED_GREEN,  200);
+                       LED(LED_ORANGE, 200);
+
+                       LEDsoff();
+                       LED(selected + 1, 0);
+
+                       // Next state is replay:
+                       playing = 1;
+
+                       cardRead[selected] = 1;
+               }
+               /* MF Classic UID clone */
+               else if (iGotoClone==1)
+               {
+                       iGotoClone=0;
+                       LEDsoff();
+                       LED(selected + 1, 0);
+                       LED(LED_ORANGE, 250);
+
+                       // record
+                       Dbprintf("Preparing to Clone card [Bank: %x]; uid: %08x", selected, uid_1st[selected]);
+
+                       // wait for button to be released
+                       // Delay cloning until card is in place
+                       while(BUTTON_PRESS())
+                               WDT_HIT();
+
+                       Dbprintf("Starting clone. [Bank: %u]", selected);
+                       // need this delay to prevent catching some weird data
+                       SpinDelay(500);
+                       // Begin clone function here:
+                       /* Example from client/mifarehost.c for commanding a block write for "magic Chinese" cards:
+                                       UsbCommand c = {CMD_MIFARE_CSETBLOCK, {params & (0xFE | (uid == NULL ? 0:1)), blockNo, 0}};
+                                       memcpy(c.d.asBytes, data, 16);
+                                       SendCommand(&c);
+
+                               Block read is similar:
+                                       UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, blockNo, 0}};
+                               We need to imitate that call with blockNo 0 to set a uid.
+
+                               The get and set commands are handled in this file:
+                                       // Work with "magic Chinese" card
+                                       case CMD_MIFARE_CSETBLOCK:
+                                                       MifareCSetBlock(c->arg[0], c->arg[1], c->d.asBytes);
+                                                       break;
+                                       case CMD_MIFARE_CGETBLOCK:
+                                                       MifareCGetBlock(c->arg[0], c->arg[1], c->d.asBytes);
+                                                       break;
+
+                               mfCSetUID provides example logic for UID set workflow:
+                                       -Read block0 from card in field with MifareCGetBlock()
+                                       -Configure new values without replacing reserved bytes
+                                                       memcpy(block0, uid, 4); // Copy UID bytes from byte array
+                                                       // Mifare UID BCC
+                                                       block0[4] = block0[0]^block0[1]^block0[2]^block0[3]; // BCC on byte 5
+                                                       Bytes 5-7 are reserved SAK and ATQA for mifare classic
+                                       -Use mfCSetBlock(0, block0, oldUID, wantWipe, MAGIC_SINGLE) to write it
+                       */
+                       uint8_t oldBlock0[16] = {0}, newBlock0[16] = {0}, testBlock0[16] = {0};
+                       // arg0 = Flags, arg1=blockNo
+                       MifareCGetBlock(params, 0, oldBlock0);
+                       if (oldBlock0[0] == 0 && oldBlock0[0] == oldBlock0[1]  && oldBlock0[1] == oldBlock0[2] && oldBlock0[2] == oldBlock0[3]) {
+                               Dbprintf("No changeable tag detected. Returning to replay mode for bank[%d]", selected);
+                               playing = 1;
+                       }
+                       else {
+                               Dbprintf("UID from target tag: %02X%02X%02X%02X", oldBlock0[0],oldBlock0[1],oldBlock0[2],oldBlock0[3]);
+                               memcpy(newBlock0,oldBlock0,16);
+                               // Copy uid_1st for bank (2nd is for longer UIDs not supported if classic)
+
+                               newBlock0[0] = uid_1st[selected]>>24;
+                               newBlock0[1] = 0xFF & (uid_1st[selected]>>16);
+                               newBlock0[2] = 0xFF & (uid_1st[selected]>>8);
+                               newBlock0[3] = 0xFF & (uid_1st[selected]);
+                               newBlock0[4] = newBlock0[0]^newBlock0[1]^newBlock0[2]^newBlock0[3];
+
+                               // arg0 = workFlags, arg1 = blockNo, datain
+                               MifareCSetBlock(params, 0, newBlock0);
+                               MifareCGetBlock(params, 0, testBlock0);
+                               
+                               if (memcmp(testBlock0, newBlock0, 16)==0) {
+                                       DbpString("Cloned successfull!");
+                                       cardRead[selected] = 0; // Only if the card was cloned successfully should we clear it
+                                       playing = 0;
+                                       iGotoRecord = 1;
+                                       selected = (selected + 1) % OPTS;
+                               } else {
+                                       Dbprintf("Clone failed. Back to replay mode on bank[%d]", selected);
+                                       playing = 1;
+                               }
+                       }
+                       LEDsoff();
+                       LED(selected + 1, 0);
+               }
+               // Change where to record (or begin playing)
+               else if (playing==1) // button_pressed == BUTTON_SINGLE_CLICK && cardRead[selected])
+               {
+                       LEDsoff();
+                       LED(selected + 1, 0);
+
+                       // Begin transmitting
+                       if (playing)
+                       {
+                               LED(LED_GREEN, 0);
+                               DbpString("Playing");
+                               for ( ; ; ) {
+                                       WDT_HIT();
+                                       int button_action = BUTTON_HELD(1000);
+                                       if (button_action == 0) { // No button action, proceed with sim
+                                               uint8_t data[512] = {0}; // in case there is a read command received we shouldn't break
+                                               uint8_t flags = ( uid_2nd[selected] > 0x00 ) ? FLAG_7B_UID_IN_DATA : FLAG_4B_UID_IN_DATA;
+                                               num_to_bytes(uid_1st[selected], 3, data);
+                                               num_to_bytes(uid_2nd[selected], 4, data);
+                                               
+                                               Dbprintf("Simulating ISO14443a tag with uid[0]: %08x, uid[1]: %08x [Bank: %u]", uid_1st[selected],uid_2nd[selected],selected);
+                                               if (hi14a_card[selected].sak == 8 && hi14a_card[selected].atqa[0] == 4 && hi14a_card[selected].atqa[1] == 0) {
+                                                       DbpString("Mifare Classic");
+                                                       SimulateIso14443aTag(1, flags, data); // Mifare Classic
+                                               }
+                                               else if (hi14a_card[selected].sak == 0 && hi14a_card[selected].atqa[0] == 0x44 && hi14a_card[selected].atqa[1] == 0) {
+                                                       DbpString("Mifare Ultralight");
+                                                       SimulateIso14443aTag(2, flags, data); // Mifare Ultralight
+                                               }
+                                               else if (hi14a_card[selected].sak == 20 && hi14a_card[selected].atqa[0] == 0x44 && hi14a_card[selected].atqa[1] == 3) {
+                                                       DbpString("Mifare DESFire");
+                                                       SimulateIso14443aTag(3, flags, data); // Mifare DESFire
+                                               }
+                                               else {
+                                                       Dbprintf("Unrecognized tag type -- defaulting to Mifare Classic emulation");
+                                                       SimulateIso14443aTag(1, flags, data);
+                                               }
+                                       }
+                                       else if (button_action == BUTTON_SINGLE_CLICK) {
+                                               selected = (selected + 1) % OPTS;
+                                               Dbprintf("Done playing. Switching to record mode on bank %d",selected);
+                                               iGotoRecord = 1;
+                                               break;
+                                       }
+                                       else if (button_action == BUTTON_HOLD) {
+                                               Dbprintf("Playtime over. Begin cloning...");
+                                               iGotoClone = 1;
+                                               break;
+                                       }
+                                       WDT_HIT();
+                               }
+
+                               /* We pressed a button so ignore it here with a delay */
+                               SpinDelay(300);
+                               LEDsoff();
+                               LED(selected + 1, 0);
+                       }
+                       else
+                               while(BUTTON_PRESS())
+                                       WDT_HIT();
+               }
+       }
+}
+#elif WITH_LF
+// samy's sniff and repeat routine
+void SamyRun()
+{
+       StandAloneMode();
+       FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+
+       int high[OPTS], low[OPTS];
        int selected = 0;
        int playing = 0;
        int cardRead = 0;
@@ -365,8 +636,7 @@ void SamyRun()
        // Turn on selected LED
        LED(selected + 1, 0);
 
-       for (;;)
-       {
+       for (;;) {
                usb_poll();
                WDT_HIT();
 
@@ -392,54 +662,46 @@ void SamyRun()
                        SpinDelay(500);
 
                        CmdHIDdemodFSK(1, &high[selected], &low[selected], 0);
-                       Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]);
+                       Dbprintf("Recorded %x %x %08x", selected, high[selected], low[selected]);
 
                        LEDsoff();
                        LED(selected + 1, 0);
                        // Finished recording
-
                        // If we were previously playing, set playing off
                        // so next button push begins playing what we recorded
-                       playing = 0;
-                       
-                       cardRead = 1;
-       
+                       playing = 0;                    
+                       cardRead = 1;   
                }
+               else if (button_pressed > 0 && cardRead == 1) {
+                       LEDsoff();
+                       LED(selected + 1, 0);
+                       LED(LED_ORANGE, 0);
 
-               else if (button_pressed > 0 && cardRead == 1)
-               {
-                                       LEDsoff();
-                                       LED(selected + 1, 0);
-                                       LED(LED_ORANGE, 0);
-
-                                       // record
-                                       Dbprintf("Cloning %x %x %x", selected, high[selected], low[selected]);
+                       // record
+                       Dbprintf("Cloning %x %x %08x", selected, high[selected], low[selected]);
 
-                                       // wait for button to be released
-                                       while(BUTTON_PRESS())
-                                               WDT_HIT();
+                       // wait for button to be released
+                       while(BUTTON_PRESS())
+                               WDT_HIT();
 
-                                       /* need this delay to prevent catching some weird data */
-                                       SpinDelay(500);
+                       /* need this delay to prevent catching some weird data */
+                       SpinDelay(500);
 
-                                       CopyHIDtoT55x7(high[selected], low[selected], 0, 0);
-                                       Dbprintf("Cloned %x %x %x", selected, high[selected], low[selected]);
+                       CopyHIDtoT55x7(0, high[selected], low[selected], 0);
+                       Dbprintf("Cloned %x %x %08x", selected, high[selected], low[selected]);
 
-                                       LEDsoff();
-                                       LED(selected + 1, 0);
-                                       // Finished recording
+                       LEDsoff();
+                       LED(selected + 1, 0);
+                       // Finished recording
 
-                                       // If we were previously playing, set playing off
-                                       // so next button push begins playing what we recorded
-                                       playing = 0;
-                                       
-                                       cardRead = 0;
-                       
+                       // If we were previously playing, set playing off
+                       // so next button push begins playing what we recorded
+                       playing = 0;                    
+                       cardRead = 0;                   
                }
 
                // Change where to record (or begin playing)
-               else if (button_pressed)
-               {
+               else if (button_pressed) {
                        // Next option if we were previously playing
                        if (playing)
                                selected = (selected + 1) % OPTS;
@@ -456,15 +718,16 @@ void SamyRun()
                                // wait for button to be released
                                while(BUTTON_PRESS())
                                        WDT_HIT();
-                               Dbprintf("%x %x %x", selected, high[selected], low[selected]);
-                               CmdHIDsimTAG(high[selected], low[selected], 0);
+                               
+                               Dbprintf("%x %x %08x", selected, high[selected], low[selected]);
+                               CmdHIDsimTAG(high[selected], low[selected], 0);         
                                DbpString("Done playing");
-                               if (BUTTON_HELD(1000) > 0)
-                                       {
+                               
+                               if (BUTTON_HELD(1000) > 0) {
                                        DbpString("Exiting");
                                        LEDsoff();
                                        return;
-                                       }
+                               }
 
                                /* We pressed a button so ignore it here with a delay */
                                SpinDelay(300);
@@ -481,8 +744,8 @@ void SamyRun()
                }
        }
 }
-#endif
 
+#endif
 /*
 OBJECTIVE
 Listen and detect an external reader. Determine the best location
@@ -520,16 +783,14 @@ static const char LIGHT_SCHEME[] = {
 };
 static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]);
 
-void ListenReaderField(int limit)
-{
-       int lf_av, lf_av_new, lf_baseline= 0, lf_max;
-       int hf_av, hf_av_new,  hf_baseline= 0, hf_max;
-       int mode=1, display_val, display_max, i;
-
+void ListenReaderField(int limit) {
 #define LF_ONLY                                                1
 #define HF_ONLY                                                2
 #define REPORT_CHANGE                          10    // report new values only if they have changed at least by REPORT_CHANGE
 
+       int lf_av, lf_av_new, lf_baseline= 0, lf_max;
+       int hf_av, hf_av_new,  hf_baseline= 0, hf_max;
+       int mode=1, display_val, display_max, i;
 
        // switch off FPGA - we don't want to measure our own signal
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
@@ -646,7 +907,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        setSamplingConfig((sample_config *) c->d.asBytes);
                        break;
                case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K:
-                       cmd_send(CMD_ACK,SampleLF(c->arg[0]),0,0,0,0);
+                       cmd_send(CMD_ACK, SampleLF(c->arg[0]),0,0,0,0);
                        break;
                case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
                        ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
@@ -676,7 +937,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        CmdIOdemodFSK(c->arg[0], 0, 0, 1);
                        break;
                case CMD_IO_CLONE_TAG:
-                       CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
+                       CopyIOtoT55x7(c->arg[0], c->arg[1]);
                        break;
                case CMD_EM410X_DEMOD:
                        CmdEM410xdemod(c->arg[0], 0, 0, 1);
@@ -691,8 +952,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        WriteTItag(c->arg[0],c->arg[1],c->arg[2]);
                        break;
                case CMD_SIMULATE_TAG_125K:
-                       SimulateTagLowFrequency(c->arg[0], c->arg[1], 0);
-                       //SimulateTagLowFrequencyA(c->arg[0], c->arg[1]);
+                       LED_A_ON();
+                       SimulateTagLowFrequency(c->arg[0], c->arg[1], 1);
+                       LED_A_OFF();
                        break;
                case CMD_LF_SIMULATE_BIDIR:
                        SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
@@ -704,17 +966,22 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        CopyIndala224toT55x7(c->d.asDwords[0], c->d.asDwords[1], c->d.asDwords[2], c->d.asDwords[3], c->d.asDwords[4], c->d.asDwords[5], c->d.asDwords[6]);
                        break;
                case CMD_T55XX_READ_BLOCK:
-                       T55xxReadBlock(c->arg[1], c->arg[2],c->d.asBytes[0]);
+                       T55xxReadBlock(c->arg[0], c->arg[1], c->arg[2]);
                        break;
                case CMD_T55XX_WRITE_BLOCK:
                        T55xxWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
                        break;
-               case CMD_T55XX_READ_TRACE:
-                       T55xxReadTrace();
+               case CMD_T55XX_WAKEUP:
+                       T55xxWakeUp(c->arg[0]);
+                       break;
+               case CMD_T55XX_RESET_READ:
+                       T55xxResetRead();
                        break;
                case CMD_PCF7931_READ:
                        ReadPCF7931();
-                       cmd_send(CMD_ACK,0,0,0,0,0);
+                       break;
+               case CMD_PCF7931_WRITE:
+                       WritePCF7931(c->d.asBytes[0],c->d.asBytes[1],c->d.asBytes[2],c->d.asBytes[3],c->d.asBytes[4],c->d.asBytes[5],c->d.asBytes[6], c->d.asBytes[9], c->d.asBytes[7]-128,c->d.asBytes[8]-128, c->arg[0], c->arg[1], c->arg[2]);
                        break;
                case CMD_EM4X_READ_WORD:
                        EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
@@ -722,6 +989,12 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_EM4X_WRITE_WORD:
                        EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
                        break;
+               case CMD_AWID_DEMOD_FSK: // Set realtime AWID demodulation
+                       CmdAWIDdemodFSK(c->arg[0], 0, 0, 1);
+                       break;
+        case CMD_VIKING_CLONE_TAG:
+                       CopyVikingtoT55xx(c->arg[0], c->arg[1], c->arg[2]);
+            break;
 #endif
 
 #ifdef WITH_HITAG
@@ -734,8 +1007,20 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_READER_HITAG: // Reader for Hitag tags, args = type and function
                        ReaderHitag((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
                        break;
+               case CMD_SIMULATE_HITAG_S:// Simulate Hitag s tag, args = memory content
+                       SimulateHitagSTag((bool)c->arg[0],(byte_t*)c->d.asBytes);
+                       break;
+               case CMD_TEST_HITAGS_TRACES:// Tests every challenge within the given file
+                       check_challenges((bool)c->arg[0],(byte_t*)c->d.asBytes);
+                       break;
+               case CMD_READ_HITAG_S://Reader for only Hitag S tags, args = key or challenge
+                       ReadHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes);
+                       break;
+               case CMD_WR_HITAG_S://writer for Hitag tags args=data to write,page and key or challenge
+                       WritePageHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes,c->arg[2]);
+                       break;
 #endif
-            
+
 #ifdef WITH_ISO15693
                case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
                        AcquireRawAdcSamplesIso15693();
@@ -779,20 +1064,17 @@ void UsbPacketReceived(uint8_t *packet, int len)
 #endif
 
 #ifdef WITH_ISO14443b
-               case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_14443:
-                       AcquireRawAdcSamplesIso14443(c->arg[0]);
-                       break;
                case CMD_READ_SRI512_TAG:
-                       ReadSTMemoryIso14443(0x0F);
+                       ReadSTMemoryIso14443b(0x0F);
                        break;
                case CMD_READ_SRIX4K_TAG:
-                       ReadSTMemoryIso14443(0x7F);
+                       ReadSTMemoryIso14443b(0x7F);
                        break;
-               case CMD_SNOOP_ISO_14443:
-                       SnoopIso14443();
+               case CMD_SNOOP_ISO_14443B:
+                       SnoopIso14443b();
                        break;
-               case CMD_SIMULATE_TAG_ISO_14443:
-                       SimulateIso14443Tag();
+               case CMD_SIMULATE_TAG_ISO_14443B:
+                       SimulateIso14443bTag();
                        break;
                case CMD_ISO_14443B_COMMAND:
                        SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
@@ -801,25 +1083,24 @@ void UsbPacketReceived(uint8_t *packet, int len)
 
 #ifdef WITH_ISO14443a
                case CMD_SNOOP_ISO_14443a:
-                       SnoopIso14443a(c->arg[0]);
+                       SniffIso14443a(c->arg[0]);
                        break;
                case CMD_READER_ISO_14443a:
                        ReaderIso14443a(c);
                        break;
                case CMD_SIMULATE_TAG_ISO_14443a:
-                       SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);  // ## Simulate iso14443a tag - pass tag type & UID
+                       SimulateIso14443aTag(c->arg[0], c->arg[1], c->d.asBytes);  // ## Simulate iso14443a tag - pass tag type & UID
                        break;
                        
                case CMD_EPA_PACE_COLLECT_NONCE:
                        EPA_PACE_Collect_Nonce(c);
                        break;
-                       
-               // case CMD_EPA_:
-               //      EpaFoo(c);
-               // break;
+               case CMD_EPA_PACE_REPLAY:
+                       EPA_PACE_Replay(c);
+                       break;
                        
                case CMD_READER_MIFARE:
-            ReaderMifare(c->arg[0]);
+            ReaderMifare(c->arg[0], c->arg[1]);
                        break;
                case CMD_MIFARE_READBL:
                        MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
@@ -827,35 +1108,29 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_MIFAREU_READBL:
                        MifareUReadBlock(c->arg[0],c->arg[1], c->d.asBytes);
                        break;
-               case CMD_MIFAREUC_AUTH1:
-                       MifareUC_Auth1(c->arg[0],c->d.asBytes);
-                       break;
-               case CMD_MIFAREUC_AUTH2:
-                       MifareUC_Auth2(c->arg[0],c->d.asBytes);
+               case CMD_MIFAREUC_AUTH:
+                       MifareUC_Auth(c->arg[0],c->d.asBytes);
                        break;
                case CMD_MIFAREU_READCARD:
-                       MifareUReadCard(c->arg[0], c->arg[1], c->d.asBytes);
-            break;
-               case CMD_MIFAREUC_READCARD:
-                       MifareUReadCard(c->arg[0], c->arg[1], c->d.asBytes);
-                       break;          
+                       MifareUReadCard(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+                       break;
                case CMD_MIFAREUC_SETPWD: 
                        MifareUSetPwd(c->arg[0], c->d.asBytes);
                        break;
-               //case CMD_MIFAREU_SETUID: 
-                       //MifareUSetUid(c->arg[0], c->d.asBytes);
-                       //break;                
                case CMD_MIFARE_READSC:
                        MifareReadSector(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;
                case CMD_MIFARE_WRITEBL:
                        MifareWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;
-               case CMD_MIFAREU_WRITEBL_COMPAT:
-                       MifareUWriteBlock(c->arg[0], c->d.asBytes);
-            break;
+               //case CMD_MIFAREU_WRITEBL_COMPAT:
+                       //MifareUWriteBlockCompat(c->arg[0], c->d.asBytes);
+                       //break;
                case CMD_MIFAREU_WRITEBL:
-                       MifareUWriteBlock_Special(c->arg[0], c->d.asBytes);
+                       MifareUWriteBlock(c->arg[0], c->arg[1], c->d.asBytes);
+                       break;
+               case CMD_MIFARE_ACQUIRE_ENCRYPTED_NONCES:
+                       MifareAcquireEncryptedNonces(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;
                case CMD_MIFARE_NESTED:
                        MifareNested(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
@@ -886,10 +1161,10 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        
                // Work with "magic Chinese" card
                case CMD_MIFARE_CSETBLOCK:
-                       MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+                       MifareCSetBlock(c->arg[0], c->arg[1], c->d.asBytes);
                        break;
                case CMD_MIFARE_CGETBLOCK:
-                       MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+                       MifareCGetBlock(c->arg[0], c->arg[1], c->d.asBytes);
                        break;
                case CMD_MIFARE_CIDENT:
                        MifareCIdent();
@@ -919,8 +1194,22 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        MifareSendCommand(c->arg[0], c->arg[1], c->d.asBytes);
                        break;
 
+               case CMD_MIFARE_COLLECT_NONCES:
+                       break;
+#endif
+#ifdef WITH_EMV
+               case CMD_EMV_TRANSACTION:
+                       EMVTransaction();
+                       break;
+        case CMD_EMV_GET_RANDOM_NUM:
+            //EMVgetUDOL();
+            break;
+        case CMD_EMV_LOAD_VALUE:
+            EMVloadvalue(c->arg[0], c->d.asBytes);  
+            break;
+        case CMD_EMV_DUMP_CARD:
+            EMVdumpcard();
 #endif
-
 #ifdef WITH_ICLASS
                // Makes use of ISO14443a FPGA Firmware
                case CMD_SNOOP_ICLASS:
@@ -933,16 +1222,35 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        ReaderIClass(c->arg[0]);
                        break;
                case CMD_READER_ICLASS_REPLAY:
-                       ReaderIClass_Replay(c->arg[0], c->d.asBytes);
+                   ReaderIClass_Replay(c->arg[0], c->d.asBytes);
                        break;
        case CMD_ICLASS_EML_MEMSET:
                        emlSet(c->d.asBytes,c->arg[0], c->arg[1]);
                        break;
+               case CMD_ICLASS_WRITEBLOCK:
+                       iClass_WriteBlock(c->arg[0], c->d.asBytes);
+                       break;
+               case CMD_ICLASS_READCHECK:  // auth step 1
+                       iClass_ReadCheck(c->arg[0], c->arg[1]);
+                       break;
+               case CMD_ICLASS_READBLOCK:
+                       iClass_ReadBlk(c->arg[0]);
+                       break;
+               case CMD_ICLASS_AUTHENTICATION: //check
+                       iClass_Authentication(c->d.asBytes);
+                       break;
+               case CMD_ICLASS_DUMP:
+                       iClass_Dump(c->arg[0], c->arg[1]);
+                       break;
+               case CMD_ICLASS_CLONE:
+                       iClass_Clone(c->arg[0], c->arg[1], c->d.asBytes);
+                       break;
 #endif
-
-               case CMD_SIMULATE_TAG_HF_LISTEN:
-                       SimulateTagHfListen();
+#ifdef WITH_HFSNOOP
+               case CMD_HF_SNIFFER:
+                       HfSnoop(c->arg[0], c->arg[1]);
                        break;
+#endif
 
                case CMD_BUFF_CLEAR:
                        BigBuf_Clear();
@@ -966,25 +1274,38 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        LED_D_OFF(); // LED D indicates field ON or OFF
                        break;
 
-               case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
-
+               case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: {
                        LED_B_ON();
                        uint8_t *BigBuf = BigBuf_get_addr();
+                       size_t len = 0;
                        for(size_t i=0; i<c->arg[1]; i += USB_CMD_DATA_SIZE) {
-                               size_t len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
+                               len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
                                cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,BigBuf_get_traceLen(),BigBuf+c->arg[0]+i,len);
                        }
                        // Trigger a finish downloading signal with an ACK frame
                        cmd_send(CMD_ACK,1,0,BigBuf_get_traceLen(),getSamplingConfig(),sizeof(sample_config));
                        LED_B_OFF();
                        break;
-
+               }
                case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
                        uint8_t *b = BigBuf_get_addr();
-                       memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
+                       memcpy( b + c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
                        cmd_send(CMD_ACK,0,0,0,0,0);
                        break;
-               }       
+               }
+               case CMD_DOWNLOAD_EML_BIGBUF: {
+                       LED_B_ON();
+                       uint8_t *cardmem = BigBuf_get_EM_addr();
+                       size_t len = 0;
+                       for(size_t i=0; i < c->arg[1]; i += USB_CMD_DATA_SIZE) {
+                               len = MIN((c->arg[1] - i), USB_CMD_DATA_SIZE);
+                               cmd_send(CMD_DOWNLOADED_EML_BIGBUF, i, len, CARD_MEMORY_SIZE, cardmem + c->arg[0] + i, len);
+                       }
+                       // Trigger a finish downloading signal with an ACK frame
+                       cmd_send(CMD_ACK, 1, 0, CARD_MEMORY_SIZE, 0, 0);
+                       LED_B_OFF();
+                       break;
+               }
                case CMD_READ_MEM:
                        ReadMem(c->arg[0]);
                        break;
@@ -1006,7 +1327,12 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_VERSION:
                        SendVersion();
                        break;
-
+               case CMD_STATUS:
+                       SendStatus();
+                       break;
+               case CMD_PING:
+                       cmd_send(CMD_ACK,0,0,0,0,0);
+                       break;
 #ifdef WITH_LCD
                case CMD_LCD_RESET:
                        LCDReset();
@@ -1019,8 +1345,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_FINISH_WRITE:
                case CMD_HARDWARE_RESET:
                        usb_disable();
-                       SpinDelay(1000);
-                       SpinDelay(1000);
+                       SpinDelay(2000);
                        AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
                        for(;;) {
                                // We're going to reset, and the bootrom will take control.
@@ -1074,7 +1399,7 @@ void  __attribute__((noreturn)) AppMain(void)
        AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_PCK0;
        // PCK0 is PLL clock / 4 = 96Mhz / 4 = 24Mhz
        AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK |
-               AT91C_PMC_PRES_CLK_4;
+               AT91C_PMC_PRES_CLK_4; //  4 for 24Mhz pck0, 2 for 48 MHZ pck0
        AT91C_BASE_PIOA->PIO_OER = GPIO_PCK0;
 
        // Reset SPI
@@ -1092,21 +1417,28 @@ void  __attribute__((noreturn)) AppMain(void)
        LCDInit();
 #endif
 
-  byte_t rx[sizeof(UsbCommand)];
+       byte_t rx[sizeof(UsbCommand)];
        size_t rx_len;
   
        for(;;) {
                if (usb_poll()) {
                        rx_len = usb_read(rx,sizeof(UsbCommand));
-                       if (rx_len) {
+                       if (rx_len)
                                UsbPacketReceived(rx,rx_len);
-                       }
                }
                WDT_HIT();
 
 #ifdef WITH_LF
+#ifndef WITH_ISO14443a_StandAlone
                if (BUTTON_HELD(1000) > 0)
                        SamyRun();
+#endif
+#endif
+#ifdef WITH_ISO14443a
+#ifdef WITH_ISO14443a_StandAlone
+               if (BUTTON_HELD(1000) > 0)
+                       StandAloneMode14a();
+#endif
 #endif
        }
 }
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