X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/d16e0478d281e959e9d939ed5af331b5d67d17c9..dd683ece723051dacd9fe31c1bdeaad1995c4b4d:/armsrc/appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 1c01537b..c158ad2c 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -10,20 +10,22 @@
 // executes.
 //-----------------------------------------------------------------------------
 
-#include "proxmark3.h"
+#include "../common/usb_cdc.h"
+#include "../common/cmd.h"
+
+#include "../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 "../include/hitag2.h"
+
 
 #ifdef WITH_LCD
-# include "fonts.h"
-# include "LCD.h"
+ #include "LCD.h"
 #endif
 
 #define abs(x) ( ((x)<0) ? -(x) : (x) )
@@ -34,7 +36,8 @@
 // is the order in which they go out on the wire.
 //=============================================================================
 
-uint8_t ToSend[512];
+#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")));
@@ -65,7 +68,7 @@ void ToSendStuffBit(int b)
 
 	ToSendBit++;
 
-	if(ToSendBit >= sizeof(ToSend)) {
+	if(ToSendMax  >= sizeof(ToSend)) {
 		ToSendBit = 0;
 		DbpString("ToSendStuffBit overflowed!");
 	}
@@ -77,39 +80,14 @@ void ToSendStuffBit(int b)
 
 void DbpString(char *str)
 {
-	/* 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);
+  byte_t len = strlen(str);
+  cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len);
 }
 
 #if 0
 void DbpIntegers(int x1, int x2, int x3)
 {
-	/* 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);
+  cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
 }
 #endif
 
@@ -190,15 +168,11 @@ int AvgAdc(int ch) // was static - merlok
 
 void MeasureAntennaTuning(void)
 {
-	uint8_t *dest = (uint8_t *)BigBuf+FREE_BUFFER_OFFSET;
+	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
 
-	UsbCommand c;
-
   LED_B_ON();
-	DbpString("Measuring antenna characteristics, please wait...");
-	memset(dest,0,sizeof(FREE_BUFFER_SIZE));
 
 /*
  * Sweeps the useful LF range of the proxmark from
@@ -209,8 +183,9 @@ void MeasureAntennaTuning(void)
  * ( hopefully around 95 if it is tuned to 125kHz!)
  */
   
-	FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER);
-	for (i=255; i>19; i--) {
+  	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
+	for (i=255; i>=19; i--) {
     WDT_HIT();
 		FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
 		SpinDelay(20);
@@ -220,31 +195,27 @@ void MeasureAntennaTuning(void)
 		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) {
+		LF_Results[i] = adcval>>8; // scale int to fit in byte for graphing purposes
+		if(LF_Results[i] > peak) {
 			peakv = adcval;
-			peak = dest[i];
+			peak = LF_Results[i];
 			peakf = i;
 			//ptr = i;
 		}
 	}
 
+	for (i=18; i >= 0; i--) LF_Results[i] = 0;
+	
   LED_A_ON();
 	// 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;
 
-	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");
-
-	UsbSendPacket((uint8_t *)&c, sizeof(c));
+	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();
@@ -259,6 +230,7 @@ void MeasureAntennaTuningHf(void)
 
 	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
@@ -281,6 +253,7 @@ void SimulateTagHfListen(void)
 
 	// 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.
@@ -331,7 +304,7 @@ extern struct version_information version_information;
 extern char *_bootphase1_version_pointer, _flash_start, _flash_end;
 void SendVersion(void)
 {
-	char temp[48]; /* Limited data payload in USB packets */
+	char temp[512]; /* Limited data payload in USB packets */
 	DbpString("Prox/RFID mark3 RFID instrument");
 
 	/* Try to find the bootrom version information. Expect to find a pointer at
@@ -351,6 +324,8 @@ void SendVersion(void)
 
 	FpgaGatherVersion(temp, sizeof(temp));
 	DbpString(temp);
+	// Send Chip ID
+	cmd_send(CMD_ACK,*(AT91C_DBGU_CIDR),0,0,NULL,0);
 }
 
 #ifdef WITH_LF
@@ -358,6 +333,7 @@ void SendVersion(void)
 void SamyRun()
 {
 	DbpString("Stand-alone mode! No PC necessary.");
+	FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
 
 	// 3 possible options? no just 2 for now
 #define OPTS 2
@@ -377,13 +353,14 @@ void SamyRun()
 
 	int selected = 0;
 	int playing = 0;
+	int cardRead = 0;
 
 	// Turn on selected LED
 	LED(selected + 1, 0);
 
 	for (;;)
 	{
-		UsbPoll(FALSE);
+		usb_poll();
 		WDT_HIT();
 
 		// Was our button held down or pressed?
@@ -391,7 +368,7 @@ void SamyRun()
 		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);
@@ -417,6 +394,40 @@ void SamyRun()
 			// If we were previously playing, set playing off
 			// so next button push begins playing what we recorded
 			playing = 0;
+			
+			cardRead = 1;
+	
+		}
+
+		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]);
+
+					// wait for button to be released
+					while(BUTTON_PRESS())
+						WDT_HIT();
+
+					/* 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]);
+
+					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;
+			
 		}
 
 		// Change where to record (or begin playing)
@@ -613,27 +624,40 @@ void ListenReaderField(int limit)
 void UsbPacketReceived(uint8_t *packet, int len)
 {
 	UsbCommand *c = (UsbCommand *)packet;
-	UsbCommand ack;
-	ack.cmd = CMD_ACK;
 
+  //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_ACQUIRE_RAW_ADC_SAMPLES_125K:
 			AcquireRawAdcSamples125k(c->arg[0]);
-			UsbSendPacket((uint8_t*)&ack, sizeof(ack));
+			cmd_send(CMD_ACK,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);
 			break;
+		case CMD_LF_SNOOP_RAW_ADC_SAMPLES:
+			SnoopLFRawAdcSamples(c->arg[0], c->arg[1]);
+			cmd_send(CMD_ACK,0,0,0,0,0);
+			break;
 		case CMD_HID_DEMOD_FSK:
-			CmdHIDdemodFSK(0, 0, 0, 1);					// Demodulate HID tag
+			CmdHIDdemodFSK(c->arg[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], 1);
 			break;
-		case CMD_HID_CLONE_TAG: // Clone HID tag by ID to T55x7
+		case CMD_HID_CLONE_TAG:
 			CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
 			break;
+		case CMD_IO_DEMOD_FSK:
+			CmdIOdemodFSK(c->arg[0], 0, 0, 1);
+			break;
+		case CMD_IO_CLONE_TAG:
+			CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
+			break;
+		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]);
 			break;
@@ -644,37 +668,36 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			WriteTItag(c->arg[0],c->arg[1],c->arg[2]);
 			break;
 		case CMD_SIMULATE_TAG_125K:
-			LED_A_ON();
-			SimulateTagLowFrequency(c->arg[0], c->arg[1], 1);
-			LED_A_OFF();
+			SimulateTagLowFrequency(c->arg[0], c->arg[1], 0);
+			//SimulateTagLowFrequencyA(c->arg[0], c->arg[1]);
 			break;
 		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
+		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: 
+		case CMD_T55XX_READ_BLOCK:
 			T55xxReadBlock(c->arg[1], c->arg[2],c->d.asBytes[0]);
 			break;
-		case CMD_T55XX_WRITE_BLOCK: 
-			T55xxWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]); 
+		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
+		case CMD_T55XX_READ_TRACE:
 			T55xxReadTrace();
 			break;
-		case CMD_PCF7931_READ: // Read PCF7931 tag
+		case CMD_PCF7931_READ:
 			ReadPCF7931();
-			UsbSendPacket((uint8_t*)&ack, sizeof(ack));
+			cmd_send(CMD_ACK,0,0,0,0,0);
 			break;
-		case CMD_EM4X_READ_WORD: 
+		case CMD_EM4X_READ_WORD:
 			EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
 			break;
-		case CMD_EM4X_WRITE_WORD: 
-			EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]); 
+		case CMD_EM4X_WRITE_WORD:
+			EM4xWriteWord(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
 			break;
 #endif
 
@@ -714,7 +737,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			ReaderIso15693(c->arg[0]);
 			break;
 		case CMD_SIMTAG_ISO_15693:
-			SimTagIso15693(c->arg[0]);
+			SimTagIso15693(c->arg[0], c->d.asBytes);
 			break;
 #endif
 
@@ -737,10 +760,10 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			AcquireRawAdcSamplesIso14443(c->arg[0]);
 			break;
 		case CMD_READ_SRI512_TAG:
-			ReadSRI512Iso14443(c->arg[0]);
+			ReadSTMemoryIso14443(0x0F);
 			break;
 		case CMD_READ_SRIX4K_TAG:
-			ReadSRIX4KIso14443(c->arg[0]);
+			ReadSTMemoryIso14443(0x7F);
 			break;
 		case CMD_SNOOP_ISO_14443:
 			SnoopIso14443();
@@ -748,6 +771,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
 		case CMD_SIMULATE_TAG_ISO_14443:
 			SimulateIso14443Tag();
 			break;
+		case CMD_ISO_14443B_COMMAND:
+			SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);
+			break;
 #endif
 
 #ifdef WITH_ISO14443a
@@ -755,27 +781,53 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			SnoopIso14443a(c->arg[0]);
 			break;
 		case CMD_READER_ISO_14443a:
-			ReaderIso14443a(c, &ack);
+			ReaderIso14443a(c);
 			break;
 		case CMD_SIMULATE_TAG_ISO_14443a:
-			SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2]);  // ## Simulate iso14443a tag - pass tag type & UID
+			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, &ack);
+			EPA_PACE_Collect_Nonce(c);
 			break;
 			
+		// case CMD_EPA_:
+		//	EpaFoo(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);
+			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);
+			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;
 		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:
+                        MifareUWriteBlock_Special(c->arg[0], c->d.asBytes);
+                        break;
 		case CMD_MIFARE_NESTED:
 			MifareNested(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
@@ -804,17 +856,42 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			break;
 			
 		// Work with "magic Chinese" card
-		case CMD_MIFARE_EML_CSETBLOCK:
+		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;
+			
+		// mifare desfire
+		case CMD_MIFARE_DESFIRE_READBL:
+			break;
+		case CMD_MIFARE_DESFIRE_WRITEBL:
+			break;
+		case CMD_MIFARE_DESFIRE_AUTH1:
+			MifareDES_Auth1(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+			break;
+		case CMD_MIFARE_DESFIRE_AUTH2:
+			//MifareDES_Auth2(c->arg[0],c->d.asBytes);
+			break;
+		// case CMD_MIFARE_DES_READER:
+			// ReaderMifareDES(c->arg[0], c->arg[1], c->d.asBytes);
+			//break;
+		case CMD_MIFARE_DESFIRE_INFO:
+			MifareDesfireGetInformation();
+			break;
+		case CMD_MIFARE_DESFIRE:
+			MifareSendCommand(c->arg[0], c->arg[1], c->d.asBytes);
+			break;
+
 #endif
 
 #ifdef WITH_ICLASS
@@ -823,11 +900,14 @@ void UsbPacketReceived(uint8_t *packet, int len)
 			SnoopIClass();
 			break;
 		case CMD_SIMULATE_TAG_ICLASS:
-			SimulateIClass(c->arg[0], c->d.asBytes);
+			SimulateIClass(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
 			break;
 		case CMD_READER_ICLASS:
 			ReaderIClass(c->arg[0]);
 			break;
+		case CMD_READER_ICLASS_REPLAY:
+		        ReaderIClass_Replay(c->arg[0], c->d.asBytes);
+			break;
 #endif
 
 		case CMD_SIMULATE_TAG_HF_LISTEN:
@@ -856,32 +936,30 @@ 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: {
-			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.asDwords, BigBuf+c->arg[0], 12*sizeof(uint32_t));
+		case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
+
 			LED_B_ON();
-			UsbSendPacket((uint8_t *)&n, sizeof(n));
+			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);
+			}
+			// Trigger a finish downloading signal with an ACK frame
+			cmd_send(CMD_ACK,0,0,0,0,0);
 			LED_B_OFF();
-		} break;
+			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));
-		} break;
-
+			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);
 			FpgaSendCommand(FPGA_CMD_SET_DIVISOR, c->arg[0]);
 			break;
 
@@ -908,36 +986,34 @@ void UsbPacketReceived(uint8_t *packet, int len)
 #endif
 		case CMD_SETUP_WRITE:
 		case CMD_FINISH_WRITE:
-		case CMD_HARDWARE_RESET: {
-			USB_D_PLUS_PULLUP_OFF();
+		case CMD_HARDWARE_RESET:
+			usb_disable();
 			SpinDelay(1000);
 			SpinDelay(1000);
 			AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
 			for(;;) {
 				// We're going to reset, and the bootrom will take control.
 			}
-        } break;
+			break;
 
-		case CMD_START_FLASH: {
+		case CMD_START_FLASH:
 			if(common_area.flags.bootrom_present) {
 				common_area.command = COMMON_AREA_COMMAND_ENTER_FLASH_MODE;
 			}
-			USB_D_PLUS_PULLUP_OFF();
+			usb_disable();
 			AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
 			for(;;);
-        } break;
+			break;
 
 		case CMD_DEVICE_INFO: {
-			UsbCommand c;
-			c.cmd = CMD_DEVICE_INFO;
-			c.arg[0] = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
-			if(common_area.flags.bootrom_present) c.arg[0] |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;
-			UsbSendPacket((uint8_t*)&c, sizeof(c));
-		} break;
-            
-		default: {
+			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;
+			cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);	
+			break;
+		}
+		default:
 			Dbprintf("%s: 0x%04x","unknown command:",c->cmd);
-        } break;
+			break;
 	}
 }
 
@@ -958,7 +1034,8 @@ void  __attribute__((noreturn)) AppMain(void)
 	LED_B_OFF();
 	LED_A_OFF();
 
-	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;
@@ -975,38 +1052,25 @@ void  __attribute__((noreturn)) AppMain(void)
 	AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
 
 	// Load the FPGA image, which we have stored in our flash.
-	FpgaDownloadAndGo();
+	// (the HF version by default)
+	FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
 
 	StartTickCount();
-	
+  	
 #ifdef WITH_LCD
-
 	LCDInit();
-
-	// test text on different colored backgrounds
-	LCDString(" The quick brown fox  ",	(char *)&FONT6x8,1,1+8*0,WHITE  ,BLACK );
-	LCDString("  jumped over the     ",	(char *)&FONT6x8,1,1+8*1,BLACK  ,WHITE );
-	LCDString("     lazy dog.        ",	(char *)&FONT6x8,1,1+8*2,YELLOW ,RED   );
-	LCDString(" AaBbCcDdEeFfGgHhIiJj ",	(char *)&FONT6x8,1,1+8*3,RED    ,GREEN );
-	LCDString(" KkLlMmNnOoPpQqRrSsTt ",	(char *)&FONT6x8,1,1+8*4,MAGENTA,BLUE  );
-	LCDString("UuVvWwXxYyZz0123456789",	(char *)&FONT6x8,1,1+8*5,BLUE   ,YELLOW);
-	LCDString("`-=[]_;',./~!@#$%^&*()",	(char *)&FONT6x8,1,1+8*6,BLACK  ,CYAN  );
-	LCDString("     _+{}|:\\\"<>?     ",(char *)&FONT6x8,1,1+8*7,BLUE  ,MAGENTA);
-
-	// color bands
-	LCDFill(0, 1+8* 8, 132, 8, BLACK);
-	LCDFill(0, 1+8* 9, 132, 8, WHITE);
-	LCDFill(0, 1+8*10, 132, 8, RED);
-	LCDFill(0, 1+8*11, 132, 8, GREEN);
-	LCDFill(0, 1+8*12, 132, 8, BLUE);
-	LCDFill(0, 1+8*13, 132, 8, YELLOW);
-	LCDFill(0, 1+8*14, 132, 8, CYAN);
-	LCDFill(0, 1+8*15, 132, 8, MAGENTA);
-
 #endif
 
+  byte_t rx[sizeof(UsbCommand)];
+	size_t rx_len;
+  
 	for(;;) {
-		UsbPoll(FALSE);
+		if (usb_poll()) {
+			rx_len = usb_read(rx,sizeof(UsbCommand));
+			if (rx_len) {
+				UsbPacketReceived(rx,rx_len);
+			}
+		}
 		WDT_HIT();
 
 #ifdef WITH_LF