X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/471c5141672c1c386bae0b28d25041309b8118fe..refs/heads/master:/armsrc/appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 05e68868..56bf67e0 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -10,25 +10,41 @@
 // executes.
 //-----------------------------------------------------------------------------
 
-#include "usb_cdc.h"
-#include "cmd.h"
+#include <stdarg.h>
 
+#include "usb_cdc.h"
 #include "proxmark3.h"
 #include "apps.h"
+#include "fpga.h"
 #include "util.h"
 #include "printf.h"
 #include "string.h"
-
-#include <stdarg.h>
-
 #include "legicrf.h"
-#include <hitag2.h>
-
+#include "legicrfsim.h"
+#include "hitag2.h"
+#include "hitagS.h"
+#include "iclass.h"
+#include "iso14443b.h"
+#include "iso15693.h"
+#include "lfsampling.h"
+#include "BigBuf.h"
+#include "mifarecmd.h"
+#include "mifareutil.h"
+#include "mifaresim.h"
+#include "pcf7931.h"
+#include "i2c.h"
+#include "hfsnoop.h"
+#include "fpgaloader.h"
 #ifdef WITH_LCD
- #include "LCD.h"
+	#include "LCD.h"
 #endif
 
-#define abs(x) ( ((x)<0) ? -(x) : (x) )
+static uint32_t hw_capabilities;
+
+// Craig Young - 14a stand-alone code
+#ifdef WITH_ISO14443a
+	#include "iso14443a.h"
+#endif
 
 //=============================================================================
 // A buffer where we can queue things up to be sent through the FPGA, for
@@ -36,39 +52,31 @@
 // is the order in which they go out on the wire.
 //=============================================================================
 
-#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 
+#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;
 static int ToSendBit;
 struct common_area common_area __attribute__((section(".commonarea")));
 
-void BufferClear(void)
-{
-	memset(BigBuf,0,sizeof(BigBuf));
-	Dbprintf("Buffer cleared (%i bytes)",sizeof(BigBuf));
-}
-
-void ToSendReset(void)
-{
+void ToSendReset(void) {
 	ToSendMax = -1;
 	ToSendBit = 8;
 }
 
-void ToSendStuffBit(int b)
-{
-	if(ToSendBit >= 8) {
+void ToSendStuffBit(int b) {
+	if (ToSendBit >= 8) {
 		ToSendMax++;
 		ToSend[ToSendMax] = 0;
 		ToSendBit = 0;
 	}
 
-	if(b) {
+	if (b) {
 		ToSend[ToSendMax] |= (1 << (7 - ToSendBit));
 	}
 
 	ToSendBit++;
 
-	if(ToSendMax >= sizeof(ToSend)) {
+	if (ToSendMax >= sizeof(ToSend)) {
 		ToSendBit = 0;
 		DbpString("ToSendStuffBit overflowed!");
 	}
@@ -78,46 +86,10 @@ 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);
-//	/* this holds up stuff unless we're connected to usb */
-//	if (!UsbConnected())
-//		return;
-//
-//	UsbCommand c;
-//	c.cmd = CMD_DEBUG_PRINT_STRING;
-//	c.arg[0] = strlen(str);
-//	if(c.arg[0] > sizeof(c.d.asBytes)) {
-//		c.arg[0] = sizeof(c.d.asBytes);
-//	}
-//	memcpy(c.d.asBytes, str, c.arg[0]);
-//
-//	UsbSendPacket((uint8_t *)&c, sizeof(c));
-//	// TODO fix USB so stupid things like this aren't req'd
-//	SpinDelay(50);
-}
-
-#if 0
-void DbpIntegers(int x1, int x2, int x3)
-{
-  cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
-//	/* this holds up stuff unless we're connected to usb */
-//	if (!UsbConnected())
-//		return;
-//
-//	UsbCommand c;
-//	c.cmd = CMD_DEBUG_PRINT_INTEGERS;
-//	c.arg[0] = x1;
-//	c.arg[1] = x2;
-//	c.arg[2] = x3;
-//
-//	UsbSendPacket((uint8_t *)&c, sizeof(c));
-//	// XXX
-//	SpinDelay(50);
+void DbpString(char *str) {
+	uint8_t len = strlen(str);
+	cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(uint8_t*)str,len);
 }
-#endif
 
 void Dbprintf(const char *fmt, ...) {
 // should probably limit size here; oh well, let's just use a big buffer
@@ -135,26 +107,26 @@ void Dbprintf(const char *fmt, ...) {
 void Dbhexdump(int len, uint8_t *d, bool bAsci) {
 	int l=0,i;
 	char ascii[9];
-    
+
 	while (len>0) {
 		if (len>8) l=8;
 		else l=len;
-		
+
 		memcpy(ascii,d,l);
 		ascii[l]=0;
-		
+
 		// filter safe ascii
-		for (i=0;i<l;i++)
-			if (ascii[i]<32 || ascii[i]>126) ascii[i]='.';
-        
+		for (i = 0; i < l; i++)
+			if (ascii[i]<32 || ascii[i]>126) ascii[i] = '.';
+
 		if (bAsci) {
-			Dbprintf("%-8s %*D",ascii,l,d," ");
+			Dbprintf("%-8s %*D",ascii, l, d, " ");
 		} else {
-			Dbprintf("%*D",l,d," ");
+			Dbprintf("%*D", l, d, " ");
 		}
-        
-		len-=8;
-		d+=8;		
+
+		len -= 8;
+		d += 8;
 	}
 }
 
@@ -163,27 +135,31 @@ void Dbhexdump(int len, uint8_t *d, bool bAsci) {
 // in ADC units (0 to 1023). Also a routine to average 32 samples and
 // return that.
 //-----------------------------------------------------------------------------
-static int ReadAdc(int ch)
-{
-	uint32_t d;
+static int ReadAdc(int ch) {
+	// Note: ADC_MODE_PRESCALE and ADC_MODE_SAMPLE_HOLD_TIME are set to the maximum allowed value.
+	// AMPL_HI is a high impedance (10MOhm || 1MOhm) output, the input capacitance of the ADC is 12pF (typical). This results in a time constant
+	// of RC = (0.91MOhm) * 12pF = 10.9us. Even after the maximum configurable sample&hold time of 40us the input capacitor will not be fully charged.
+	//
+	// The maths are:
+	// If there is a voltage v_in at the input, the voltage v_cap at the capacitor (this is what we are measuring) will be
+	//
+	//       v_cap = v_in * (1 - exp(-SHTIM/RC))  =   v_in * (1 - exp(-40us/10.9us))  =  v_in * 0,97                   (i.e. an error of 3%)
 
 	AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
 	AT91C_BASE_ADC->ADC_MR =
-		ADC_MODE_PRESCALE(32) |
-		ADC_MODE_STARTUP_TIME(16) |
-		ADC_MODE_SAMPLE_HOLD_TIME(8);
-	AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
+		ADC_MODE_PRESCALE(63) |                         // ADC_CLK = MCK / ((63+1) * 2) = 48MHz / 128 = 375kHz
+		ADC_MODE_STARTUP_TIME(1) |                      // Startup Time = (1+1) * 8 / ADC_CLK = 16 / 375kHz = 42,7us     Note: must be > 20us
+		ADC_MODE_SAMPLE_HOLD_TIME(15);                  // Sample & Hold Time SHTIM = 15 / ADC_CLK = 15 / 375kHz = 40us
 
+	AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
 	AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
-	while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
-		;
-	d = AT91C_BASE_ADC->ADC_CDR[ch];
 
-	return d;
+	while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) {};
+
+	return AT91C_BASE_ADC->ADC_CDR[ch] & 0x3ff;
 }
 
-int AvgAdc(int ch) // was static - merlok
-{
+int AvgAdc(int ch) { // was static - merlok{
 	int i;
 	int a = 0;
 
@@ -194,17 +170,26 @@ int AvgAdc(int ch) // was static - merlok
 	return (a + 15) >> 5;
 }
 
-void MeasureAntennaTuning(void)
-{
-	uint8_t *dest = (uint8_t *)BigBuf+FREE_BUFFER_OFFSET;
-	int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0 
-	int vLf125 = 0, vLf134 = 0, vHf = 0;	// in mV
+static int AvgAdc_Voltage_HF(void) {
+	int AvgAdc_Voltage_Low, AvgAdc_Voltage_High;
+
+	AvgAdc_Voltage_Low= (MAX_ADC_HF_VOLTAGE_LOW * AvgAdc(ADC_CHAN_HF_LOW)) >> 10;
+	// if voltage range is about to be exceeded, use high voltage ADC channel if available (RDV40 only)
+	if (AvgAdc_Voltage_Low > MAX_ADC_HF_VOLTAGE_LOW - 300) {
+		AvgAdc_Voltage_High = (MAX_ADC_HF_VOLTAGE_HIGH * AvgAdc(ADC_CHAN_HF_HIGH)) >> 10;
+		if (AvgAdc_Voltage_High >= AvgAdc_Voltage_Low) {
+			return AvgAdc_Voltage_High;
+		}
+	}
+	return AvgAdc_Voltage_Low;
+}
 
-//	UsbCommand c;
+static int AvgAdc_Voltage_LF(void) {
+	return (MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10;
+}
 
-  LED_B_ON();
-	DbpString("Measuring antenna characteristics, please wait...");
-	memset(dest,0,FREE_BUFFER_SIZE);
+void MeasureAntennaTuningLfOnly(int *vLf125, int *vLf134, int *peakf, int *peakv, uint8_t LF_Results[]) {
+	int i, adcval = 0, peak = 0;
 
 /*
  * Sweeps the useful LF range of the proxmark from
@@ -214,199 +199,475 @@ void MeasureAntennaTuning(void)
  * the resonating frequency of your LF antenna
  * ( hopefully around 95 if it is tuned to 125kHz!)
  */
-  
-  	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+
+	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
-	for (i=255; i>19; i--) {
-    WDT_HIT();
+	SpinDelay(50);
+
+	for (i = 255; i >= 19; i--) {
+		WDT_HIT();
 		FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
 		SpinDelay(20);
-		// Vref = 3.3V, and a 10000:240 voltage divider on the input
-		// can measure voltages up to 137500 mV
-		adcval = ((137500 * AvgAdc(ADC_CHAN_LF)) >> 10);
-		if (i==95) 	vLf125 = adcval; // voltage at 125Khz
-		if (i==89) 	vLf134 = adcval; // voltage at 134Khz
-
-		dest[i] = adcval>>8; // scale int to fit in byte for graphing purposes
-		if(dest[i] > peak) {
-			peakv = adcval;
-			peak = dest[i];
-			peakf = i;
+		adcval = AvgAdc_Voltage_LF();
+		if (i == 95) *vLf125 = adcval; // voltage at 125Khz
+		if (i == 89) *vLf134 = adcval; // voltage at 134Khz
+
+		LF_Results[i] = adcval >> 9; // scale int to fit in byte for graphing purposes
+		if (LF_Results[i] > peak) {
+			*peakv = adcval;
+			peak = LF_Results[i];
+			*peakf = i;
 			//ptr = i;
 		}
 	}
 
-  LED_A_ON();
+	for (i = 18; i >= 0; i--) LF_Results[i] = 0;
+
+	return;
+}
+
+void MeasureAntennaTuningHfOnly(int *vHf) {
 	// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
-  	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-	FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+	LED_A_ON();
+	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER);
 	SpinDelay(20);
-	// Vref = 3300mV, and an 10:1 voltage divider on the input
-	// can measure voltages up to 33000 mV
-	vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
-
-//	c.cmd = CMD_MEASURED_ANTENNA_TUNING;
-//	c.arg[0] = (vLf125 << 0) | (vLf134 << 16);
-//	c.arg[1] = vHf;
-//	c.arg[2] = peakf | (peakv << 16);
-
-  DbpString("Measuring complete, sending report back to host");
-  cmd_send(CMD_MEASURED_ANTENNA_TUNING,vLf125|(vLf134<<16),vHf,peakf|(peakv<<16),0,0);
-//	UsbSendPacket((uint8_t *)&c, sizeof(c));
+	*vHf = AvgAdc_Voltage_HF();
+	LED_A_OFF();
+	return;
+}
+
+void MeasureAntennaTuning(int mode) {
+	uint8_t LF_Results[256] = {0};
+	int peakv = 0, peakf = 0;
+	int vLf125 = 0, vLf134 = 0, vHf = 0; // in mV
+
+	LED_B_ON();
+
+	if (((mode & FLAG_TUNE_ALL) == FLAG_TUNE_ALL) && (FpgaGetCurrent() == FPGA_BITSTREAM_HF)) {
+		// Reverse "standard" order if HF already loaded, to avoid unnecessary swap.
+		MeasureAntennaTuningHfOnly(&vHf);
+		MeasureAntennaTuningLfOnly(&vLf125, &vLf134, &peakf, &peakv, LF_Results);
+	} else {
+		if (mode & FLAG_TUNE_LF) {
+			MeasureAntennaTuningLfOnly(&vLf125, &vLf134, &peakf, &peakv, LF_Results);
+		}
+		if (mode & FLAG_TUNE_HF) {
+			MeasureAntennaTuningHfOnly(&vHf);
+		}
+	}
+
+	cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125>>1 | (vLf134>>1<<16), vHf, peakf | (peakv>>1<<16), LF_Results, 256);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-  LED_A_OFF();
-  LED_B_OFF();
-  return;
+	LED_B_OFF();
+	return;
 }
 
-void MeasureAntennaTuningHf(void)
-{
-	int vHf = 0;	// in mV
+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);
+
 	for (;;) {
-		// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
-		FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-		FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
-		SpinDelay(20);
-		// Vref = 3300mV, and an 10:1 voltage divider on the input
-		// can measure voltages up to 33000 mV
-		vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
+		SpinDelay(500);
+		vHf = AvgAdc_Voltage_HF();
 
 		Dbprintf("%d mV",vHf);
 		if (BUTTON_PRESS()) break;
 	}
 	DbpString("cancelled");
-}
 
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 
-void SimulateTagHfListen(void)
-{
-	uint8_t *dest = (uint8_t *)BigBuf+FREE_BUFFER_OFFSET;
-	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);
+void ReadMem(int addr) {
+	const uint8_t *data = ((uint8_t *)addr);
 
-	FpgaSetupSsc();
+	Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
+		addr, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
+}
 
-	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;
+/* 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, _bootrom_start, _bootrom_end, __data_src_start__;
 
-			v <<= 1;
-			if(r & 1) {
-				v |= 1;
-			}
-			p++;
 
-			if(p >= 8) {
-				dest[i] = v;
-				v = 0;
-				p = 0;
-				i++;
+void set_hw_capabilities(void) {
+	if (I2C_is_available()) {
+		hw_capabilities |= HAS_SMARTCARD_SLOT;
+	}
 
-				if(i >= FREE_BUFFER_SIZE) {
-					break;
-				}
-			}
-		}
+	if (false) { // TODO: implement a test
+		hw_capabilities |= HAS_EXTRA_FLASH_MEM;
 	}
-	DbpString("simulate tag (now type bitsamples)");
 }
 
-void ReadMem(int addr)
-{
-	const uint8_t *data = ((uint8_t *)addr);
 
-	Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x",
-		addr, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
-}
+void SendVersion(void) {
+	LED_A_ON();
+	set_hw_capabilities();
 
-/* 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;
-void SendVersion(void)
-{
-	char temp[256]; /* 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");
+	if (bootrom_version < &_flash_start || bootrom_version >= &_flash_end) {
+		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);
+
+	for (int i = 0; i < fpga_bitstream_num; i++) {
+		strncat(VersionString, fpga_version_information[i], sizeof(VersionString) - strlen(VersionString) - 1);
+		strncat(VersionString, "\n", sizeof(VersionString) - strlen(VersionString) - 1);
+	}
+
+	// test availability of SmartCard slot
+	if (I2C_is_available()) {
+		strncat(VersionString, "SmartCard Slot: available\n", sizeof(VersionString) - strlen(VersionString) - 1);
+	} else {
+		strncat(VersionString, "SmartCard Slot: not available\n", 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, hw_capabilities, VersionString, strlen(VersionString) + 1);
+	LED_A_OFF();
 }
 
-#ifdef WITH_LF
-// samy's sniff and repeat routine
-void SamyRun()
-{
-	DbpString("Stand-alone mode! No PC necessary.");
-	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+// 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) {
+	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;
+
+	uint32_t start_time = end_time = GetTickCount();
+	uint32_t bytes_transferred = 0;
+
+	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;
+	}
+
+	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) {
+	LED_A_ON();
+	BigBuf_print_status();
+	Fpga_print_status();
+#ifdef WITH_SMARTCARD
+	I2C_print_status();
+#endif
+	printConfig(); //LF Sampling config
+	printUSBSpeed();
+	Dbprintf("Various");
+	Dbprintf("  MF_DBGLEVEL........%d", MF_DBGLEVEL);
+	Dbprintf("  ToSendMax..........%d", ToSendMax);
+	Dbprintf("  ToSendBit..........%d", ToSendBit);
+
+	cmd_send(CMD_ACK, 1, 0, 0, 0, 0);
+	LED_A_OFF();
+}
 
-	int high[OPTS], low[OPTS];
+#if defined(WITH_ISO14443a_StandAlone) || defined(WITH_LF_StandAlone)
+
+#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_RED,    200);
 	LED(LED_ORANGE, 200);
-	LED(LED_GREEN,	200);
+	LED(LED_GREEN,  200);
 	LED(LED_ORANGE, 200);
-	LED(LED_RED,	200);
+	LED(LED_RED,    200);
 	LED(LED_ORANGE, 200);
-	LED(LED_GREEN,	200);
+	LED(LED_GREEN,  200);
 	LED(LED_ORANGE, 200);
-	LED(LED_RED,	200);
+	LED(LED_RED,    200);
+}
+
+#endif
+
+
+
+#ifdef WITH_ISO14443a_StandAlone
+void StandAloneMode14a() {
+	StandAloneMode();
+	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
+	int selected = 0;
+	bool playing = false, GotoRecord = false, GotoClone = false;
+	bool cardRead[OPTS] = {false};
+	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];
+
+	LED(selected + 1, 0);
+
+	for (;;) {
+		usb_poll();
+		WDT_HIT();
+		SpinDelay(300);
+
+		if (GotoRecord || !cardRead[selected]) {
+			GotoRecord = false;
+			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;
+			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;
+					} 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, true))
+					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 = true;
+
+			cardRead[selected] = true;
+		} else if (GotoClone) { /* MF Classic UID clone */
+			GotoClone=false;
+			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
+			while(BUTTON_PRESS()) {
+				// Delay cloning until card is in place
+				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, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}};
+					memcpy(c.d.asBytes, data, 16);
+					SendCommand(&c);
+
+					Block read is similar:
+					UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, 0, blockNo}};
+					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->arg[2], c->d.asBytes);
+						break;
+					case CMD_MIFARE_CGETBLOCK:
+						MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], 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, CSETBLOCK_SINGLE_OPER) to write it
+			*/
+			uint8_t oldBlock0[16] = {0}, newBlock0[16] = {0}, testBlock0[16] = {0};
+			// arg0 = Flags == CSETBLOCK_SINGLE_OPER=0x1F, arg1=returnSlot, arg2=blockNo
+			MifareCGetBlock(0x3F, 1, 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 = true;
+			} 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 = needWipe, arg1 = workFlags, arg2 = blockNo, datain
+				MifareCSetBlock(0, 0xFF, 0, newBlock0);
+				MifareCGetBlock(0x3F, 1, 0, testBlock0);
+				if (memcmp(testBlock0, newBlock0, 16) == 0) {
+					DbpString("Cloned successfull!");
+					cardRead[selected] = false; // Only if the card was cloned successfully should we clear it
+					playing = false;
+					GotoRecord = true;
+					selected = (selected+1) % OPTS;
+				} else {
+					Dbprintf("Clone failed. Back to replay mode on bank[%d]", selected);
+					playing = true;
+				}
+			}
+			LEDsoff();
+			LED(selected + 1, 0);
+
+		} else if (playing) {
+			// button_pressed == BUTTON_SINGLE_CLICK && cardRead[selected])
+			// Change where to record (or begin playing)
+			LEDsoff();
+			LED(selected + 1, 0);
+
+			// Begin transmitting
+			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
+					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, uid_1st[selected], uid_2nd[selected], 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, uid_1st[selected], uid_2nd[selected], 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, uid_1st[selected], uid_2nd[selected], data); // Mifare DESFire
+					} else {
+						Dbprintf("Unrecognized tag type -- defaulting to Mifare Classic emulation");
+						SimulateIso14443aTag(1, uid_1st[selected], uid_2nd[selected], data);
+					}
+				} else if (button_action == BUTTON_SINGLE_CLICK) {
+					selected = (selected + 1) % OPTS;
+					Dbprintf("Done playing. Switching to record mode on bank %d",selected);
+					GotoRecord = true;
+					break;
+				} else if (button_action == BUTTON_HOLD) {
+					Dbprintf("Playtime over. Begin cloning...");
+					GotoClone = true;
+					break;
+				}
+				WDT_HIT();
+			}
+
+			/* We pressed a button so ignore it here with a delay */
+			SpinDelay(300);
+			LEDsoff();
+			LED(selected + 1, 0);
+		}
+	}
+}
+
+#elif WITH_LF_StandAlone
+
+// samy's sniff and repeat routine
+void SamyRun() {
+	StandAloneMode();
+	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+
+	int tops[OPTS], high[OPTS], low[OPTS];
 	int selected = 0;
 	int playing = 0;
+	int cardRead = 0;
 
 	// Turn on selected LED
 	LED(selected + 1, 0);
 
-	for (;;)
-	{
-//		UsbPoll(FALSE);
+	for (;;) {
 		usb_poll();
-    WDT_HIT();
+		WDT_HIT();
 
 		// Was our button held down or pressed?
 		int button_pressed = BUTTON_HELD(1000);
 		SpinDelay(300);
 
 		// Button was held for a second, begin recording
-		if (button_pressed > 0)
-		{
+		if (button_pressed > 0 && cardRead == 0) {
 			LEDsoff();
 			LED(selected + 1, 0);
 			LED(LED_RED2, 0);
@@ -421,8 +682,11 @@ void SamyRun()
 			/* need this delay to prevent catching some weird data */
 			SpinDelay(500);
 
-			CmdHIDdemodFSK(1, &high[selected], &low[selected], 0);
-			Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]);
+			CmdHIDdemodFSK(1, &tops[selected], &high[selected], &low[selected], 0);
+			if (tops[selected] > 0)
+				Dbprintf("Recorded %x %x%08x%08x", selected, tops[selected], high[selected], low[selected]);
+			else
+				Dbprintf("Recorded %x %x%08x", selected, high[selected], low[selected]);
 
 			LEDsoff();
 			LED(selected + 1, 0);
@@ -431,11 +695,46 @@ void SamyRun()
 			// If we were previously playing, set playing off
 			// so next button push begins playing what we recorded
 			playing = 0;
-		}
 
-		// Change where to record (or begin playing)
-		else if (button_pressed)
-		{
+			cardRead = 1;
+
+		} else if (button_pressed > 0 && cardRead == 1)	{
+			LEDsoff();
+			LED(selected + 1, 0);
+			LED(LED_ORANGE, 0);
+
+			// record
+			if (tops[selected] > 0)
+				Dbprintf("Cloning %x %x%08x%08x", selected, tops[selected], high[selected], low[selected]);
+			else
+				Dbprintf("Cloning %x %x%08x", selected, high[selected], low[selected]);
+
+			// wait for button to be released
+			while(BUTTON_PRESS())
+				WDT_HIT();
+
+			/* need this delay to prevent catching some weird data */
+			SpinDelay(500);
+
+			CopyHIDtoT55x7(tops[selected] & 0x000FFFFF, high[selected], low[selected], (tops[selected] != 0 && ((high[selected]& 0xFFFFFFC0) != 0)), 0x1D);
+			if (tops[selected] > 0)
+				Dbprintf("Cloned %x %x%08x%08x", selected, tops[selected], high[selected], low[selected]);
+			else
+				Dbprintf("Cloned %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 = 0;
+
+		} else if (button_pressed) {
+
+			// Change where to record (or begin playing)
 			// Next option if we were previously playing
 			if (playing)
 				selected = (selected + 1) % OPTS;
@@ -445,22 +744,24 @@ void SamyRun()
 			LED(selected + 1, 0);
 
 			// Begin transmitting
-			if (playing)
-			{
+			if (playing) {
 				LED(LED_GREEN, 0);
 				DbpString("Playing");
 				// 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);
+				if (tops[selected] > 0)
+					Dbprintf("%x %x%08x%08x", selected, tops[selected], high[selected], low[selected]);
+				else
+					Dbprintf("%x %x%08x", selected, high[selected], low[selected]);
+
+				CmdHIDsimTAG(tops[selected], 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);
@@ -470,13 +771,13 @@ void SamyRun()
 				playing = !playing;
 				LEDsoff();
 				LED(selected + 1, 0);
-			}
-			else
+			} else
 				while(BUTTON_PRESS())
 					WDT_HIT();
 		}
 	}
 }
+
 #endif
 
 /*
@@ -514,36 +815,44 @@ static const char LIGHT_SCHEME[] = {
 		0xE, /* -XXX     | 86% of maximum current detected */
 		0xF, /* XXXX     | 100% of maximum current detected */
 };
+
 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_count= 0, lf_max;
-	int hf_av, hf_av_new,  hf_baseline= 0, hf_count= 0, hf_max;
+void ListenReaderField(int limit) {
+	int lf_av, lf_av_new=0, lf_baseline= 0, lf_max;
+	int hf_av, hf_av_new=0,  hf_baseline= 0, hf_max;
 	int mode=1, display_val, display_max, i;
 
-#define LF_ONLY		1
-#define HF_ONLY		2
+#define LF_ONLY                    1
+#define HF_ONLY                    2
+#define REPORT_CHANGE_PERCENT      5    // report new values only if they have changed at least by REPORT_CHANGE_PERCENT
+#define MIN_HF_FIELD             300    // in mode 1 signal HF field greater than MIN_HF_FIELD above baseline
+#define MIN_LF_FIELD            1200    // in mode 1 signal LF field greater than MIN_LF_FIELD above baseline
+
+
+	// switch off FPGA - we don't want to measure our own signal
+	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 
 	LEDsoff();
 
-	lf_av=lf_max=ReadAdc(ADC_CHAN_LF);
+	lf_av = lf_max = AvgAdc_Voltage_LF();
 
-	if(limit != HF_ONLY) {
-		Dbprintf("LF 125/134 Baseline: %d", lf_av);
+	if (limit != HF_ONLY) {
+		Dbprintf("LF 125/134kHz Baseline: %dmV", lf_av);
 		lf_baseline = lf_av;
 	}
 
-	hf_av=hf_max=ReadAdc(ADC_CHAN_HF);
+	hf_av = hf_max = AvgAdc_Voltage_HF();
 
 	if (limit != LF_ONLY) {
-		Dbprintf("HF 13.56 Baseline: %d", hf_av);
+		Dbprintf("HF 13.56MHz Baseline: %dmV", hf_av);
 		hf_baseline = hf_av;
 	}
 
 	for(;;) {
+		SpinDelay(500);
 		if (BUTTON_PRESS()) {
-			SpinDelay(500);
 			switch (mode) {
 				case 1:
 					mode=2;
@@ -556,46 +865,49 @@ void ListenReaderField(int limit)
 					return;
 					break;
 			}
+			while (BUTTON_PRESS())
+				/* wait */;
 		}
 		WDT_HIT();
 
 		if (limit != HF_ONLY) {
-			if(mode==1) {
-				if (abs(lf_av - lf_baseline) > 10) LED_D_ON();
-				else                               LED_D_OFF();
+			if(mode == 1) {
+				if (lf_av - lf_baseline > MIN_LF_FIELD)
+					LED_D_ON();
+				else
+					LED_D_OFF();
 			}
 
-			++lf_count;
-			lf_av_new= ReadAdc(ADC_CHAN_LF);
+			lf_av_new = AvgAdc_Voltage_LF();
 			// see if there's a significant change
-			if(abs(lf_av - lf_av_new) > 10) {
-				Dbprintf("LF 125/134 Field Change: %x %x %x", lf_av, lf_av_new, lf_count);
+			if (ABS((lf_av - lf_av_new) * 100 / (lf_av?lf_av:1)) > REPORT_CHANGE_PERCENT) {
+				Dbprintf("LF 125/134kHz Field Change: %5dmV", lf_av_new);
 				lf_av = lf_av_new;
 				if (lf_av > lf_max)
 					lf_max = lf_av;
-				lf_count= 0;
 			}
 		}
 
 		if (limit != LF_ONLY) {
 			if (mode == 1){
-				if (abs(hf_av - hf_baseline) > 10) LED_B_ON();
-				else                               LED_B_OFF();
+				if (hf_av - hf_baseline > MIN_HF_FIELD)
+					LED_B_ON();
+				else
+					LED_B_OFF();
 			}
 
-			++hf_count;
-			hf_av_new= ReadAdc(ADC_CHAN_HF);
+			hf_av_new = AvgAdc_Voltage_HF();
+
 			// see if there's a significant change
-			if(abs(hf_av - hf_av_new) > 10) {
-				Dbprintf("HF 13.56 Field Change: %x %x %x", hf_av, hf_av_new, hf_count);
+			if (ABS((hf_av - hf_av_new) * 100 / (hf_av?hf_av:1)) > REPORT_CHANGE_PERCENT) {
+				Dbprintf("HF 13.56MHz Field Change: %5dmV", hf_av_new);
 				hf_av = hf_av_new;
 				if (hf_av > hf_max)
 					hf_max = hf_av;
-				hf_count= 0;
 			}
 		}
 
-		if(mode == 2) {
+		if (mode == 2) {
 			if (limit == LF_ONLY) {
 				display_val = lf_av;
 				display_max = lf_max;
@@ -611,8 +923,8 @@ void ListenReaderField(int limit)
 					display_max = lf_max;
 				}
 			}
-			for (i=0; i<LIGHT_LEN; i++) {
-				if (display_val >= ((display_max/LIGHT_LEN)*i) && display_val <= ((display_max/LIGHT_LEN)*(i+1))) {
+			for (i = 0; i < LIGHT_LEN; i++) {
+				if (display_val >= (display_max / LIGHT_LEN * i) && display_val <= (display_max / LIGHT_LEN * (i+1))) {
 					if (LIGHT_SCHEME[i] & 0x1) LED_C_ON(); else LED_C_OFF();
 					if (LIGHT_SCHEME[i] & 0x2) LED_A_ON(); else LED_A_OFF();
 					if (LIGHT_SCHEME[i] & 0x4) LED_B_ON(); else LED_B_OFF();
@@ -624,39 +936,55 @@ void ListenReaderField(int limit)
 	}
 }
 
-void UsbPacketReceived(uint8_t *packet, int len)
-{
-	UsbCommand *c = (UsbCommand *)packet;
+
+void UsbPacketReceived(UsbCommand *c) {
 
 //  Dbprintf("received %d bytes, with command: 0x%04x and args: %d %d %d",len,c->cmd,c->arg[0],c->arg[1],c->arg[2]);
-  
+
 	switch(c->cmd) {
 #ifdef WITH_LF
+		case CMD_SET_LF_SAMPLING_CONFIG:
+			setSamplingConfig(c->d.asBytes);
+			break;
 		case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K:
-			AcquireRawAdcSamples125k(c->arg[0]);
-			cmd_send(CMD_ACK,0,0,0,0,0);
+			cmd_send(CMD_ACK,SampleLF(c->arg[0], c->arg[1]),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);
 			break;
 		case CMD_LF_SNOOP_RAW_ADC_SAMPLES:
-			SnoopLFRawAdcSamples(c->arg[0], c->arg[1]);
-			cmd_send(CMD_ACK,0,0,0,0,0);
+			cmd_send(CMD_ACK,SnoopLF(),0,0,0,0);
 			break;
 		case CMD_HID_DEMOD_FSK:
-			CmdHIDdemodFSK(0, 0, 0, 1);					// Demodulate HID tag
+			CmdHIDdemodFSK(c->arg[0], 0, 0, 0, 1);
 			break;
 		case CMD_HID_SIM_TAG:
-			CmdHIDsimTAG(c->arg[0], c->arg[1], 1);					// Simulate HID tag by ID
+			CmdHIDsimTAG(c->arg[0], c->arg[1], c->arg[2], 1);
 			break;
-		case CMD_HID_CLONE_TAG: // Clone HID tag by ID to T55x7
-			CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
+		case CMD_FSK_SIM_TAG:
+			CmdFSKsimTAG(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_ASK_SIM_TAG:
+			CmdASKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_PSK_SIM_TAG:
+			CmdPSKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_HID_CLONE_TAG:
+			CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0], 0x1D);
+			break;
+		case CMD_PARADOX_CLONE_TAG:
+			// Paradox cards are the same as HID, with a different preamble, so we can reuse the same function
+			CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0], 0x0F);
 			break;
 		case CMD_IO_DEMOD_FSK:
-			CmdIOdemodFSK(1, 0, 0, 1);					// Demodulate IO tag
+			CmdIOdemodFSK(c->arg[0], 0, 0, 1);
+			break;
+		case CMD_IO_CLONE_TAG:
+			CopyIOtoT55x7(c->arg[0], c->arg[1]);
 			break;
-		case CMD_IO_CLONE_TAG: // Clone IO tag by ID to T55x7
-			CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
+		case CMD_EM410X_DEMOD:
+			CmdEM410xdemod(c->arg[0], 0, 0, 1);
 			break;
 		case CMD_EM410X_WRITE_TAG:
 			WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
@@ -675,31 +1003,50 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_LF_SIMULATE_BIDIR:
 			SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
 			break;
-		case CMD_INDALA_CLONE_TAG:					// Clone Indala 64-bit tag by UID to T55x7
-			CopyIndala64toT55x7(c->arg[0], c->arg[1]);					
+		case CMD_INDALA_CLONE_TAG:
+			CopyIndala64toT55x7(c->arg[0], c->arg[1]);
 			break;
-		case CMD_INDALA_CLONE_TAG_L:					// Clone Indala 224-bit tag by UID to T55x7
+		case CMD_INDALA_CLONE_TAG_L:
 			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: // Clone HID tag by ID to T55x7
-			T55xxReadTrace();
+		case CMD_T55XX_WAKEUP:
+			T55xxWakeUp(c->arg[0]);
 			break;
-		case CMD_PCF7931_READ: // Read PCF7931 tag
+		case CMD_T55XX_RESET_READ:
+			T55xxResetRead();
+			break;
+		case CMD_PCF7931_READ:
 			ReadPCF7931();
-			cmd_send(CMD_ACK,0,0,0,0,0);
-//      	UsbSendPacket((uint8_t*)&ack, sizeof(ack));
+			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_PCF7931_BRUTEFORCE:
+			BruteForcePCF7931(c->arg[0], (c->arg[1] & 0xFF), c->d.asBytes[9], c->d.asBytes[7]-128,c->d.asBytes[8]-128);
 			break;
 		case CMD_EM4X_READ_WORD:
-			EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
+			EM4xReadWord(c->arg[0], c->arg[1],c->arg[2]);
 			break;
 		case CMD_EM4X_WRITE_WORD:
-			EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
+			EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2]);
+			break;
+		case CMD_EM4X_PROTECT:
+			EM4xProtect(c->arg[0], c->arg[1], c->arg[2]);
+			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;
+		case CMD_COTAG:
+			Cotag(c->arg[0]);
 			break;
 #endif
 
@@ -708,29 +1055,50 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			SnoopHitag(c->arg[0]);
 			break;
 		case CMD_SIMULATE_HITAG: // Simulate Hitag tag, args = memory content
-			SimulateHitagTag((bool)c->arg[0],(byte_t*)c->d.asBytes);
+			SimulateHitagTag((bool)c->arg[0], (uint8_t*)c->d.asBytes);
 			break;
 		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],(uint8_t*)c->d.asBytes);
+			break;
+		case CMD_TEST_HITAGS_TRACES:// Tests every challenge within the given file
+			check_challenges_cmd((bool)c->arg[0], (uint8_t*)c->d.asBytes, (uint8_t)c->arg[1]);
+			break;
+		case CMD_READ_HITAG_S://Reader for only Hitag S tags, args = key or challenge
+			ReadHitagSCmd((hitag_function)c->arg[0], (hitag_data*)c->d.asBytes, (uint8_t)c->arg[1], (uint8_t)c->arg[2], false);
+			break;
+		case CMD_READ_HITAG_S_BLK:
+			ReadHitagSCmd((hitag_function)c->arg[0], (hitag_data*)c->d.asBytes, (uint8_t)c->arg[1], (uint8_t)c->arg[2], true);
+			break;
+		case CMD_WR_HITAG_S://writer for Hitag tags args=data to write,page and key or challenge
+			if ((hitag_function)c->arg[0] < 10) {
+				WritePageHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes,c->arg[2]);
+			}
+			else if ((hitag_function)c->arg[0] >= 10) {
+			  WriterHitag((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();
 			break;
-		case CMD_RECORD_RAW_ADC_SAMPLES_ISO_15693:
-			RecordRawAdcSamplesIso15693();
+
+		case CMD_SNOOP_ISO_15693:
+			SnoopIso15693(0, NULL);
 			break;
-			
+
 		case CMD_ISO_15693_COMMAND:
 			DirectTag15693Command(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
 			break;
-					
+
 		case CMD_ISO_15693_FIND_AFI:
 			BruteforceIso15693Afi(c->arg[0]);
-			break;	
-			
+			break;
+
 		case CMD_ISO_15693_DEBUG:
 			SetDebugIso15693(c->arg[0]);
 			break;
@@ -738,14 +1106,19 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_READER_ISO_15693:
 			ReaderIso15693(c->arg[0]);
 			break;
+
 		case CMD_SIMTAG_ISO_15693:
-			SimTagIso15693(c->arg[0]);
+			SimTagIso15693(c->arg[0], c->d.asBytes);
+			break;
+
+		case CMD_CSETUID_ISO_15693:
+			SetTag15693Uid(c->d.asBytes);
 			break;
 #endif
 
 #ifdef WITH_LEGICRF
 		case CMD_SIMULATE_TAG_LEGIC_RF:
-			LegicRfSimulate(c->arg[0], c->arg[1], c->arg[2]);
+			LegicRfSimulate(c->arg[0]);
 			break;
 
 		case CMD_WRITER_LEGIC_RF:
@@ -758,20 +1131,17 @@ 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);
@@ -788,34 +1158,50 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		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
 			break;
+
 		case CMD_EPA_PACE_COLLECT_NONCE:
 			EPA_PACE_Collect_Nonce(c);
 			break;
-			
+		case CMD_EPA_PACE_REPLAY:
+			EPA_PACE_Replay(c);
+			break;
+
 		case CMD_READER_MIFARE:
-            ReaderMifare(c->arg[0]);
+			ReaderMifare(c->arg[0]);
 			break;
 		case CMD_MIFARE_READBL:
 			MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
 		case CMD_MIFAREU_READBL:
-			MifareUReadBlock(c->arg[0],c->d.asBytes);
+			MifareUReadBlock(c->arg[0],c->arg[1], c->d.asBytes);
+			break;
+		case CMD_MIFAREUC_AUTH:
+			MifareUC_Auth(c->arg[0],c->d.asBytes);
 			break;
 		case CMD_MIFAREU_READCARD:
-			MifareUReadCard(c->arg[0],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_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_MIFARE_PERSONALIZE_UID:
+			MifarePersonalizeUID(c->arg[0], c->arg[1], 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);
-                        break;
+			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);
 			break;
@@ -823,9 +1209,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			MifareChkKeys(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
 		case CMD_SIMULATE_MIFARE_CARD:
-			Mifare1ksim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			MifareSim(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
-		
+
 		// emulator
 		case CMD_MIFARE_SET_DBGMODE:
 			MifareSetDbgLvl(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
@@ -842,25 +1228,32 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_MIFARE_EML_CARDLOAD:
 			MifareECardLoad(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
-			
+
 		// Work with "magic Chinese" card
-		case CMD_MIFARE_EML_CSETBLOCK:
+		case CMD_MIFARE_CWIPE:
+			MifareCWipe(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_CSETBLOCK:
 			MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
-		case CMD_MIFARE_EML_CGETBLOCK:
+		case CMD_MIFARE_CGETBLOCK:
 			MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
-			
+		case CMD_MIFARE_CIDENT:
+			MifareCIdent();
+			break;
+
 		// mifare sniffer
 		case CMD_MIFARE_SNIFFER:
 			SniffMifare(c->arg[0]);
 			break;
+
 #endif
 
 #ifdef WITH_ICLASS
 		// Makes use of ISO14443a FPGA Firmware
 		case CMD_SNOOP_ICLASS:
-			SnoopIClass();
+			SnoopIClass(c->arg[0], c->d.asBytes);
 			break;
 		case CMD_SIMULATE_TAG_ICLASS:
 			SimulateIClass(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
@@ -868,21 +1261,70 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_READER_ICLASS:
 			ReaderIClass(c->arg[0]);
 			break;
-		case CMD_READER_ICLASS_REPLAY:
-		    ReaderIClass_Replay(c->arg[0], c->d.asBytes);
+		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_READBLOCK:
+			iClass_ReadBlk(c->arg[0]);
+			break;
+		case CMD_ICLASS_CHECK:
+			iClass_Check(c->d.asBytes);
+			break;
+		case CMD_ICLASS_READCHECK:
+			iClass_Readcheck(c->arg[0], c->arg[1]);
+			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
+
+#ifdef WITH_HFSNOOP
+		case CMD_HF_SNIFFER:
+			HfSnoop(c->arg[0], c->arg[1]);
+			break;
+		case CMD_HF_PLOT:
+			HfPlot();
 			break;
 #endif
 
-		case CMD_SIMULATE_TAG_HF_LISTEN:
-			SimulateTagHfListen();
+#ifdef WITH_SMARTCARD
+		case CMD_SMART_ATR: {
+			SmartCardAtr();
+			break;
+		}
+		case CMD_SMART_SETCLOCK:{
+			SmartCardSetClock(c->arg[0]);
+			break;
+		}
+		case CMD_SMART_RAW: {
+			SmartCardRaw(c->arg[0], c->arg[1], c->d.asBytes);
+			break;
+		}
+		case CMD_SMART_UPLOAD: {
+			// upload file from client
+			uint8_t *mem = BigBuf_get_addr();
+			memcpy( mem + c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
+			cmd_send(CMD_ACK,1,0,0,0,0);
+			break;
+		}
+		case CMD_SMART_UPGRADE: {
+			SmartCardUpgrade(c->arg[0]);
 			break;
+		}
+#endif
 
 		case CMD_BUFF_CLEAR:
-			BufferClear();
+			BigBuf_Clear();
 			break;
 
 		case CMD_MEASURE_ANTENNA_TUNING:
-			MeasureAntennaTuning();
+			MeasureAntennaTuning(c->arg[0]);
 			break;
 
 		case CMD_MEASURE_ANTENNA_TUNING_HF:
@@ -893,50 +1335,47 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			ListenReaderField(c->arg[0]);
 			break;
 
-		case CMD_FPGA_MAJOR_MODE_OFF:		// ## FPGA Control
+		case CMD_FPGA_MAJOR_MODE_OFF:       // ## FPGA Control
+			LED_A_ON();
 			FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 			SpinDelay(200);
 			LED_D_OFF(); // LED D indicates field ON or OFF
+			LED_A_OFF();
 			break;
 
 		case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
-//			UsbCommand n;
-//			if(c->cmd == CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K) {
-//				n.cmd = CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K;
-//			} else {
-//				n.cmd = CMD_DOWNLOADED_RAW_BITS_TI_TYPE;
-//			}
-//			n.arg[0] = c->arg[0];
-      //			memcpy(n.d.asBytes, BigBuf+c->arg[0], 48); // 12*sizeof(uint32_t)
-      //			LED_B_ON();
-      //      usb_write((uint8_t *)&n, sizeof(n));
-      //			UsbSendPacket((uint8_t *)&n, sizeof(n));
-      //			LED_B_OFF();
-
 			LED_B_ON();
+			uint8_t *BigBuf = BigBuf_get_addr();
 			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);
-				cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,0,((byte_t*)BigBuf)+c->arg[0]+i,len);
+				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,0,0,0,0,0);
+			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 = (uint8_t *)BigBuf;
-			memcpy(b+c->arg[0], c->d.asBytes, 48);
-			//Dbprintf("copied 48 bytes to %i",b+c->arg[0]);
-//			UsbSendPacket((uint8_t*)&ack, sizeof(ack));
+			// iceman; since changing fpga_bitstreams clears bigbuff, Its better to call it before.
+			// to be able to use this one for uploading data to device
+			// arg1 = 0 upload for LF usage
+			//        1 upload for HF usage
+			if (c->arg[1] == 0)
+				FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+			else
+				FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+
+			uint8_t *b = BigBuf_get_addr();
+			memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE);
 			cmd_send(CMD_ACK,0,0,0,0,0);
 			break;
-		}	
+		}
 		case CMD_READ_MEM:
 			ReadMem(c->arg[0]);
 			break;
 
 		case CMD_SET_LF_DIVISOR:
-		  	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+			FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
 			FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
 			break;
 
@@ -952,7 +1391,12 @@ 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();
@@ -985,8 +1429,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_DEVICE_INFO: {
 			uint32_t dev_info = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
 			if(common_area.flags.bootrom_present) dev_info |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;
-//			UsbSendPacket((uint8_t*)&c, sizeof(c));
-			cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);	
+			cmd_send_old(CMD_DEVICE_INFO,dev_info,0,0,0,0);
 			break;
 		}
 		default:
@@ -995,10 +1438,11 @@ void UsbPacketReceived(uint8_t *packet, int len)
 	}
 }
 
-void  __attribute__((noreturn)) AppMain(void)
-{
-	SpinDelay(100);
 
+void  __attribute__((noreturn)) AppMain(void) {
+
+	SpinDelay(100);
+	clear_trace();
 	if(common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
 		/* Initialize common area */
 		memset(&common_area, 0, sizeof(common_area));
@@ -1007,14 +1451,10 @@ void  __attribute__((noreturn)) AppMain(void)
 	}
 	common_area.flags.osimage_present = 1;
 
-	LED_D_OFF();
-	LED_C_OFF();
-	LED_B_OFF();
-	LED_A_OFF();
+	LEDsoff();
 
-  // Init USB device`
-  usb_enable();
-//	UsbStart();
+	// Init USB device
+	usb_enable();
 
 	// The FPGA gets its clock from us from PCK0 output, so set that up.
 	AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;
@@ -1022,41 +1462,39 @@ 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
 	AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
+	AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST; // required twice on some AT91SAM Revisions (see Errata in AT91SAM datasheet)
 	// Reset SSC
 	AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
 
-	// Load the FPGA image, which we have stored in our flash.
-	// (the HF version by default)
+	// Load the FPGA image, which we have stored in our flash (HF version by default)
 	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-
+	
 	StartTickCount();
-  	
+
 #ifdef WITH_LCD
 	LCDInit();
 #endif
 
-  byte_t rx[sizeof(UsbCommand)];
-	size_t rx_len;
+	UsbCommand rx;
   
 	for(;;) {
-    if (usb_poll()) {
-      rx_len = usb_read(rx,sizeof(UsbCommand));
-      if (rx_len) {
-        UsbPacketReceived(rx,rx_len);
-      }
-    }
-//		UsbPoll(FALSE);
-
 		WDT_HIT();
-
-#ifdef WITH_LF
-		if (BUTTON_HELD(1000) > 0)
-			SamyRun();
+		if (cmd_receive(&rx)) {
+			UsbPacketReceived(&rx);
+		} else {
+#if defined(WITH_LF_StandAlone) && !defined(WITH_ISO14443a_StandAlone)
+			if (BUTTON_HELD(1000) > 0)
+				SamyRun();
 #endif
+#if defined(WITH_ISO14443a) && defined(WITH_ISO14443a_StandAlone)
+			if (BUTTON_HELD(1000) > 0)
+				StandAloneMode14a();
+#endif
+		}
 	}
 }