Improved error handling

[proxmark3-svn] / armsrc / appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 7830265fa253e6c87cd2c84f76beaa2cacd9c6bc..7fc399a6868c76749092b53d7af483cd5911d5ce 100644 (file)
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -10,6 +10,9 @@
 // executes.
 //-----------------------------------------------------------------------------
 
 // executes.
 //-----------------------------------------------------------------------------
 

+#include "usb_cdc.h"
+#include "cmd.h"
+

 #include "proxmark3.h"
 #include "apps.h"
 #include "util.h"
 #include "proxmark3.h"
 #include "apps.h"
 #include "util.h"


@@ -19,10 +22,10 @@
 #include <stdarg.h>
 
 #include "legicrf.h"
 #include <stdarg.h>
 
 #include "legicrf.h"

+#include <hitag2.h>

 
 #ifdef WITH_LCD
 
 #ifdef WITH_LCD

-# include "fonts.h"
-# include "LCD.h"
+ #include "LCD.h"

 #endif
 
 #define abs(x) ( ((x)<0) ? -(x) : (x) )
 #endif
 
 #define abs(x) ( ((x)<0) ? -(x) : (x) )


@@ -76,39 +79,42 @@ void ToSendStuffBit(int b)
 
 void DbpString(char *str)
 {
 
 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);
+//     /* 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)
 {
 }
 
 #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);
+//     /* 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);

 }
 #endif
 
 }
 #endif
 


@@ -125,23 +131,27 @@ void Dbprintf(const char *fmt, ...) {
 }
 
 // prints HEX & ASCII
 }
 
 // prints HEX & ASCII

-void Dbhexdump(int len, uint8_t *d) {
+void Dbhexdump(int len, uint8_t *d, bool bAsci) {

        int l=0,i;
        char ascii[9];
        int l=0,i;
        char ascii[9];

-
+    

        while (len>0) {
                if (len>8) l=8;
                else l=len;
                
                memcpy(ascii,d,l);
        while (len>0) {
                if (len>8) l=8;
                else l=len;
                
                memcpy(ascii,d,l);

-               ascii[l]=0;     
+               ascii[l]=0;

                
                // filter safe ascii
                
                // 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 (ascii[i]<32 || ascii[i]>126) ascii[i]='.';

-
-               Dbprintf("%-8s %*D",ascii,l,d," ");
-
+        
+               if (bAsci) {
+                       Dbprintf("%-8s %*D",ascii,l,d," ");
+               } else {
+                       Dbprintf("%*D",l,d," ");
+               }
+        

                len-=8;
                d+=8;           
        }
                len-=8;
                d+=8;           
        }


@@ -185,14 +195,15 @@ int AvgAdc(int ch) // was static - merlok
 
 void MeasureAntennaTuning(void)
 {
 
 void MeasureAntennaTuning(void)
 {

-       uint8_t *dest = (uint8_t *)BigBuf;
+       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
 
        int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0 
        int vLf125 = 0, vLf134 = 0, vHf = 0;    // in mV
 

-       UsbCommand c;
+//     UsbCommand c;

 
 

-       DbpString("Measuring antenna characteristics, please wait.");
-       memset(BigBuf,0,sizeof(BigBuf));
+  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
 
 /*
  * Sweeps the useful LF range of the proxmark from


@@ -202,8 +213,10 @@ void MeasureAntennaTuning(void)
  * the resonating frequency of your LF antenna
  * ( hopefully around 95 if it is tuned to 125kHz!)
  */
  * the resonating frequency of your LF antenna
  * ( hopefully around 95 if it is tuned to 125kHz!)
  */

+  

        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER);
        for (i=255; i>19; i--) {
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_READER);
        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
                FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
                SpinDelay(20);
                // Vref = 3.3V, and a 10000:240 voltage divider on the input


@@ -221,6 +234,7 @@ void MeasureAntennaTuning(void)
                }
        }
 
                }
        }
 

+  LED_A_ON();

        // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
        SpinDelay(20);
        // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
        SpinDelay(20);


@@ -228,11 +242,18 @@ void MeasureAntennaTuning(void)
        // can measure voltages up to 33000 mV
        vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
 
        // 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);
-       UsbSendPacket((uint8_t *)&c, sizeof(c));
+//     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));
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+  LED_A_OFF();
+  LED_B_OFF();
+  return;

 }
 
 void MeasureAntennaTuningHf(void)
 }
 
 void MeasureAntennaTuningHf(void)


@@ -258,8 +279,7 @@ void MeasureAntennaTuningHf(void)
 
 void SimulateTagHfListen(void)
 {
 
 void SimulateTagHfListen(void)
 {

-       uint8_t *dest = (uint8_t *)BigBuf;
-       int n = sizeof(BigBuf);
+       uint8_t *dest = (uint8_t *)BigBuf+FREE_BUFFER_OFFSET;

        uint8_t v = 0;
        int i;
        int p = 0;
        uint8_t v = 0;
        int i;
        int p = 0;


@@ -293,7 +313,7 @@ void SimulateTagHfListen(void)
                                p = 0;
                                i++;
 
                                p = 0;
                                i++;
 

-                               if(i >= n) {
+                               if(i >= FREE_BUFFER_SIZE) {

                                        break;
                                }
                        }
                                        break;
                                }
                        }


@@ -368,8 +388,9 @@ void SamyRun()
 
        for (;;)
        {
 
        for (;;)
        {

-               UsbPoll(FALSE);
-               WDT_HIT();
+//             UsbPoll(FALSE);
+               usb_poll();
+    WDT_HIT();

 
                // Was our button held down or pressed?
                int button_pressed = BUTTON_HELD(1000);
 
                // Was our button held down or pressed?
                int button_pressed = BUTTON_HELD(1000);


@@ -598,14 +619,14 @@ void ListenReaderField(int limit)
 void UsbPacketReceived(uint8_t *packet, int len)
 {
        UsbCommand *c = (UsbCommand *)packet;
 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]);
        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_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K:
                        ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes);


@@ -616,8 +637,8 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_HID_SIM_TAG:
                        CmdHIDsimTAG(c->arg[0], c->arg[1], 1);                                  // Simulate HID tag by ID
                        break;
                case CMD_HID_SIM_TAG:
                        CmdHIDsimTAG(c->arg[0], c->arg[1], 1);                                  // Simulate HID tag by ID
                        break;

-               case CMD_HID_CLONE_TAG:
-                       CopyHIDtoT55x7(c->arg[0], c->arg[1]);                                   // Clone HID tag by ID to T55x7
+    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]);

                        break;
                case CMD_EM410X_WRITE_TAG:
                        WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
                        break;
                case CMD_EM410X_WRITE_TAG:
                        WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);


@@ -642,8 +663,40 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_INDALA_CLONE_TAG_L:                                    // Clone Indala 224-bit tag by UID to T55x7
                        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_INDALA_CLONE_TAG_L:                                    // Clone Indala 224-bit tag by UID to T55x7
                        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]);
+      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();
+      break;
+    case CMD_PCF7931_READ: // Read PCF7931 tag
+      ReadPCF7931();
+      cmd_send(CMD_ACK,0,0,0,0,0);
+//      UsbSendPacket((uint8_t*)&ack, sizeof(ack));
+      break;
+    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]);
+      break;

 #endif
 
 #endif
 

+#ifdef WITH_HITAG
+               case CMD_SNOOP_HITAG: // Eavesdrop Hitag tag, args = type
+                       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);
+                       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;
+#endif
+            

 #ifdef WITH_ISO15693
                case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
                        AcquireRawAdcSamplesIso15693();
 #ifdef WITH_ISO15693
                case CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693:
                        AcquireRawAdcSamplesIso15693();


@@ -709,10 +762,13 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        SnoopIso14443a(c->arg[0]);
                        break;
                case CMD_READER_ISO_14443a:
                        SnoopIso14443a(c->arg[0]);
                        break;
                case CMD_READER_ISO_14443a:

-                       ReaderIso14443a(c, &ack);
+                       ReaderIso14443a(c);

                        break;
                case CMD_SIMULATE_TAG_ISO_14443a:
                        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);

                        break;
                        
                case CMD_READER_MIFARE:
                        break;
                        
                case CMD_READER_MIFARE:


@@ -808,27 +864,36 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        break;
 
                case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: {
                        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));
-                       LED_B_ON();
-                       UsbSendPacket((uint8_t *)&n, sizeof(n));
+//                     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();
+      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();
                        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]);
 
                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;
-               }
+//                     UsbSendPacket((uint8_t*)&ack, sizeof(ack));
+      cmd_send(CMD_ACK,0,0,0,0,0);
+               } break;

 
                case CMD_READ_MEM:
                        ReadMem(c->arg[0]);
 
                case CMD_READ_MEM:
                        ReadMem(c->arg[0]);


@@ -851,10 +916,6 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        SendVersion();
                        break;
 
                        SendVersion();
                        break;
 

-#ifdef WITH_LF
-
-#endif
-

 #ifdef WITH_LCD
                case CMD_LCD_RESET:
                        LCDReset();
 #ifdef WITH_LCD
                case CMD_LCD_RESET:
                        LCDReset();


@@ -865,36 +926,35 @@ void UsbPacketReceived(uint8_t *packet, int len)
 #endif
                case CMD_SETUP_WRITE:
                case CMD_FINISH_WRITE:
 #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.
                        }
                        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;
                        }
                        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(;;);
                        AT91C_BASE_RSTC->RSTC_RCR = RST_CONTROL_KEY | AT91C_RSTC_PROCRST;
                        for(;;);

-                       break;
+        } break;

 
                case CMD_DEVICE_INFO: {
 
                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;
+//                     UsbSendPacket((uint8_t*)&c, sizeof(c));
+      cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);
+               } break;
+            
+               default: {

                        Dbprintf("%s: 0x%04x","unknown command:",c->cmd);
                        Dbprintf("%s: 0x%04x","unknown command:",c->cmd);

-                       break;
+        } break;

        }
 }
 
        }
 }
 


@@ -915,7 +975,9 @@ void  __attribute__((noreturn)) AppMain(void)
        LED_B_OFF();
        LED_A_OFF();
 
        LED_B_OFF();
        LED_A_OFF();
 

-       UsbStart();
+  // Init USB device`
+  usb_enable();
+//     UsbStart();

 
        // The FPGA gets its clock from us from PCK0 output, so set that up.
        AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;
 
        // The FPGA gets its clock from us from PCK0 output, so set that up.
        AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;


@@ -935,35 +997,23 @@ void  __attribute__((noreturn)) AppMain(void)
        FpgaDownloadAndGo();
 
        StartTickCount();
        FpgaDownloadAndGo();
 
        StartTickCount();

-       
+       

 #ifdef WITH_LCD
 #ifdef WITH_LCD

-

        LCDInit();
        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
 
 #endif
 

+  byte_t rx[sizeof(UsbCommand)];
+       size_t rx_len;
+  

        for(;;) {
        for(;;) {

-               UsbPoll(FALSE);
+    if (usb_poll()) {
+      rx_len = usb_read(rx,sizeof(UsbCommand));
+      if (rx_len) {
+        UsbPacketReceived(rx,rx_len);
+      }
+    }
+//             UsbPoll(FALSE);
+

                WDT_HIT();
 
 #ifdef WITH_LF
                WDT_HIT();
 
 #ifdef WITH_LF