X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0d5ee8e2453c5db01e4a9c6d5187aea3c16f0093..42c235e7efdac01da7e7ef3e4e442557fe50198d:/armsrc/appmain.c diff --git a/armsrc/appmain.c b/armsrc/appmain.c index 22657815..4eabb319 100644 --- a/armsrc/appmain.c +++ b/armsrc/appmain.c @@ -9,24 +9,22 @@ // The main application code. This is the first thing called after start.c // executes. //----------------------------------------------------------------------------- - #include "usb_cdc.h" -#include "cmd.h" - +//#include "cmd.h" #include "proxmark3.h" #include "apps.h" #include "util.h" #include "printf.h" #include "string.h" - #include - #include "legicrf.h" -#include +#include "hitag2.h" +#include "hitagS.h" #include "lfsampling.h" #include "BigBuf.h" #include "mifareutil.h" #include "pcf7931.h" + #ifdef WITH_LCD #include "LCD.h" #endif @@ -37,8 +35,6 @@ #include "protocols.h" #endif -#define abs(x) ( ((x)<0) ? -(x) : (x) ) - //============================================================================= // A buffer where we can queue things up to be sent through the FPGA, for // any purpose (fake tag, as reader, whatever). We go MSB first, since that @@ -57,19 +53,17 @@ void ToSendReset(void) ToSendBit = 8; } -void ToSendStuffBit(int b) -{ +void ToSendStuffBit(int b) { if(ToSendBit >= 8) { - ToSendMax++; + ++ToSendMax; ToSend[ToSendMax] = 0; ToSendBit = 0; } - if(b) { + if(b) ToSend[ToSendMax] |= (1 << (7 - ToSendBit)); - } - ToSendBit++; + ++ToSendBit; if(ToSendMax >= sizeof(ToSend)) { ToSendBit = 0; @@ -77,26 +71,44 @@ void ToSendStuffBit(int b) } } +void PrintToSendBuffer(void){ + DbpString("Printing ToSendBuffer:"); + Dbhexdump(ToSendMax, ToSend, 0); +} + //============================================================================= // Debug print functions, to go out over USB, to the usual PC-side client. //============================================================================= -void DbpString(char *str) -{ - byte_t len = strlen(str); - cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len); +void DbpStringEx(char *str, uint32_t cmd){ + byte_t len = strlen(str); + cmd_send(CMD_DEBUG_PRINT_STRING,len, cmd,0,(byte_t*)str,len); +} + +void DbpString(char *str) { + DbpStringEx(str, 0); } #if 0 -void DbpIntegers(int x1, int x2, int x3) -{ - cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0); +void DbpIntegers(int x1, int x2, int x3) { + cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0); } #endif +void DbprintfEx(uint32_t cmd, const char *fmt, ...) { + // should probably limit size here; oh well, let's just use a big buffer + char output_string[128] = {0x00}; + va_list ap; + + va_start(ap, fmt); + kvsprintf(fmt, output_string, 10, ap); + va_end(ap); + + DbpStringEx(output_string, cmd); +} void Dbprintf(const char *fmt, ...) { -// should probably limit size here; oh well, let's just use a big buffer - char output_string[128]; + // should probably limit size here; oh well, let's just use a big buffer + char output_string[128] = {0x00}; va_list ap; va_start(ap, fmt); @@ -108,28 +120,27 @@ void Dbprintf(const char *fmt, ...) { // prints HEX & ASCII void Dbhexdump(int len, uint8_t *d, bool bAsci) { - int l=0,i; + int l=0, i; char ascii[9]; while (len>0) { - if (len>8) l=8; - else l=len; + + l = (len>8) ? 8 : len; memcpy(ascii,d,l); ascii[l]=0; // filter safe ascii - for (i=0;i126) ascii[i]='.'; - if (bAsci) { + if (bAsci) Dbprintf("%-8s %*D",ascii,l,d," "); - } else { + else Dbprintf("%*D",l,d," "); - } - len-=8; - d+=8; + len -= 8; + d += 8; } } @@ -163,31 +174,29 @@ static int ReadAdc(int ch) AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START; - while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) - ; + while (!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch))) ; + d = AT91C_BASE_ADC->ADC_CDR[ch]; - return d; } int AvgAdc(int ch) // was static - merlok { - int i; - int a = 0; - - for(i = 0; i < 32; i++) { + int i, a = 0; + for(i = 0; i < 32; ++i) a += ReadAdc(ch); - } return (a + 15) >> 5; } -void MeasureAntennaTuning(void) -{ + +void MeasureAntennaTuning(void) { + uint8_t LF_Results[256]; - int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0 + int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; int vLf125 = 0, vLf134 = 0, vHf = 0; // in mV + memset(LF_Results, 0, sizeof(LF_Results)); LED_B_ON(); /* @@ -201,25 +210,23 @@ void MeasureAntennaTuning(void) FpgaDownloadAndGo(FPGA_BITSTREAM_LF); FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); - for (i=255; i>=19; i--) { - WDT_HIT(); + + for (i = 255; i >= 19; i--) { + WDT_HIT(); FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i); SpinDelay(20); adcval = ((MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10); if (i==95) vLf125 = adcval; // voltage at 125Khz if (i==89) vLf134 = adcval; // voltage at 134Khz - LF_Results[i] = adcval>>8; // scale int to fit in byte for graphing purposes + LF_Results[i] = adcval >> 8; // scale int to fit in byte for graphing purposes if(LF_Results[i] > peak) { peakv = adcval; 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); @@ -227,39 +234,29 @@ void MeasureAntennaTuning(void) SpinDelay(20); vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10; - cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125 | (vLf134<<16), vHf, peakf | (peakv<<16), LF_Results, 256); + cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125 | (vLf134 << 16), vHf, peakf | (peakv << 16), LF_Results, 256); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - LED_A_OFF(); - LED_B_OFF(); - return; + LEDsoff(); } -void MeasureAntennaTuningHf(void) -{ +void MeasureAntennaTuningHf(void) { int vHf = 0; // in mV - - DbpString("Measuring HF antenna, press button to exit"); - // Let the FPGA drive the high-frequency antenna around 13.56 MHz. FpgaDownloadAndGo(FPGA_BITSTREAM_HF); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR); - for (;;) { + while ( !BUTTON_PRESS() ){ SpinDelay(20); vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10; - - Dbprintf("%d mV",vHf); - if (BUTTON_PRESS()) break; + //Dbprintf("%d mV",vHf); + DbprintfEx(CMD_MEASURE_ANTENNA_TUNING_HF, "%d mV",vHf); } - DbpString("cancelled"); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - + DbpString("cancelled"); } -void ReadMem(int addr) -{ +void ReadMem(int addr) { const uint8_t *data = ((uint8_t *)addr); Dbprintf("%x: %02x %02x %02x %02x %02x %02x %02x %02x", @@ -280,6 +277,7 @@ void SendVersion(void) * pointer, then use it. */ char *bootrom_version = *(char**)&_bootphase1_version_pointer; + if( bootrom_version < &_flash_start || bootrom_version >= &_flash_end ) { strcat(VersionString, "bootrom version information appears invalid\n"); } else { @@ -292,6 +290,7 @@ void SendVersion(void) FpgaGatherVersion(FPGA_BITSTREAM_LF, temp, sizeof(temp)); strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1); + FpgaGatherVersion(FPGA_BITSTREAM_HF, temp, sizeof(temp)); strncat(VersionString, temp, sizeof(VersionString) - strlen(VersionString) - 1); @@ -333,8 +332,7 @@ void printUSBSpeed(void) /** * Prints runtime information about the PM3. **/ -void SendStatus(void) -{ +void SendStatus(void) { BigBuf_print_status(); Fpga_print_status(); printConfig(); //LF Sampling config @@ -405,8 +403,8 @@ void StandAloneMode14a() /* 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; + uint8_t uid[10] = {0}; + uint32_t cuid = 0; iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD); for ( ; ; ) @@ -661,7 +659,7 @@ void SamyRun() SpinDelay(500); CmdHIDdemodFSK(1, &high[selected], &low[selected], 0); - Dbprintf("Recorded %x %x %x", selected, high[selected], low[selected]); + Dbprintf("Recorded %x %x %08x", selected, high[selected], low[selected]); LEDsoff(); LED(selected + 1, 0); @@ -677,7 +675,7 @@ void SamyRun() LED(LED_ORANGE, 0); // record - Dbprintf("Cloning %x %x %x", selected, high[selected], low[selected]); + Dbprintf("Cloning %x %x %08x", selected, high[selected], low[selected]); // wait for button to be released while(BUTTON_PRESS()) @@ -686,8 +684,8 @@ void SamyRun() /* need this delay to prevent catching some weird data */ SpinDelay(500); - CopyHIDtoT55x7(high[selected], low[selected], 0, 0); - Dbprintf("Cloned %x %x %x", selected, high[selected], low[selected]); + CopyHIDtoT55x7(0, high[selected], low[selected], 0); + Dbprintf("Cloned %x %x %08x", selected, high[selected], low[selected]); LEDsoff(); LED(selected + 1, 0); @@ -718,7 +716,7 @@ void SamyRun() while(BUTTON_PRESS()) WDT_HIT(); - Dbprintf("%x %x %x", selected, high[selected], low[selected]); + Dbprintf("%x %x %08x", selected, high[selected], low[selected]); CmdHIDsimTAG(high[selected], low[selected], 0); DbpString("Done playing"); @@ -782,16 +780,14 @@ static const char LIGHT_SCHEME[] = { }; static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]); -void ListenReaderField(int limit) -{ - int lf_av, lf_av_new, lf_baseline= 0, lf_max; - int hf_av, hf_av_new, hf_baseline= 0, hf_max; - int mode=1, display_val, display_max, i; - +void ListenReaderField(int limit) { #define LF_ONLY 1 #define HF_ONLY 2 #define REPORT_CHANGE 10 // report new values only if they have changed at least by REPORT_CHANGE + int lf_av, lf_av_new, lf_baseline= 0, lf_max; + int hf_av, hf_av_new, hf_baseline= 0, hf_max; + int mode=1, display_val, display_max, i; // switch off FPGA - we don't want to measure our own signal FpgaDownloadAndGo(FPGA_BITSTREAM_HF); @@ -833,7 +829,7 @@ void ListenReaderField(int limit) if (limit != HF_ONLY) { if(mode == 1) { - if (abs(lf_av - lf_baseline) > REPORT_CHANGE) + if (ABS(lf_av - lf_baseline) > REPORT_CHANGE) LED_D_ON(); else LED_D_OFF(); @@ -841,7 +837,7 @@ void ListenReaderField(int limit) lf_av_new = AvgAdc(ADC_CHAN_LF); // see if there's a significant change - if(abs(lf_av - lf_av_new) > REPORT_CHANGE) { + if(ABS(lf_av - lf_av_new) > REPORT_CHANGE) { Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10); lf_av = lf_av_new; if (lf_av > lf_max) @@ -851,7 +847,7 @@ void ListenReaderField(int limit) if (limit != LF_ONLY) { if (mode == 1){ - if (abs(hf_av - hf_baseline) > REPORT_CHANGE) + if (ABS(hf_av - hf_baseline) > REPORT_CHANGE) LED_B_ON(); else LED_B_OFF(); @@ -859,7 +855,7 @@ void ListenReaderField(int limit) hf_av_new = AvgAdc(ADC_CHAN_HF); // see if there's a significant change - if(abs(hf_av - hf_av_new) > REPORT_CHANGE) { + if(ABS(hf_av - hf_av_new) > REPORT_CHANGE) { Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10); hf_av = hf_av_new; if (hf_av > hf_max) @@ -900,7 +896,7 @@ void UsbPacketReceived(uint8_t *packet, int len) { UsbCommand *c = (UsbCommand *)packet; - //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]); + //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 @@ -911,7 +907,7 @@ void UsbPacketReceived(uint8_t *packet, int len) cmd_send(CMD_ACK, SampleLF(c->arg[0]),0,0,0,0); break; case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K: - ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes); + ModThenAcquireRawAdcSamples125k(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); break; case CMD_LF_SNOOP_RAW_ADC_SAMPLES: cmd_send(CMD_ACK,SnoopLF(),0,0,0,0); @@ -953,7 +949,7 @@ 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(); + LED_A_ON(); SimulateTagLowFrequency(c->arg[0], c->arg[1], 1); LED_A_OFF(); break; @@ -1008,6 +1004,18 @@ void UsbPacketReceived(uint8_t *packet, int len) case CMD_READER_HITAG: // Reader for Hitag tags, args = type and function ReaderHitag((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes); break; + case CMD_SIMULATE_HITAG_S:// Simulate Hitag s tag, args = memory content + SimulateHitagSTag((bool)c->arg[0],(byte_t*)c->d.asBytes); + break; + case CMD_TEST_HITAGS_TRACES:// Tests every challenge within the given file + check_challenges((bool)c->arg[0],(byte_t*)c->d.asBytes); + break; + case CMD_READ_HITAG_S: //Reader for only Hitag S tags, args = key or challenge + ReadHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes); + break; + case CMD_WR_HITAG_S: //writer for Hitag tags args=data to write,page and key or challenge + WritePageHitagS((hitag_function)c->arg[0],(hitag_data*)c->d.asBytes,c->arg[2]); + break; #endif #ifdef WITH_ISO15693 @@ -1042,31 +1050,33 @@ void UsbPacketReceived(uint8_t *packet, int len) case CMD_SIMULATE_TAG_LEGIC_RF: LegicRfSimulate(c->arg[0], c->arg[1], c->arg[2]); break; - case CMD_WRITER_LEGIC_RF: - LegicRfWriter(c->arg[1], c->arg[0]); + LegicRfWriter( c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); break; - case CMD_READER_LEGIC_RF: - LegicRfReader(c->arg[0], c->arg[1]); + LegicRfReader(c->arg[0], c->arg[1], c->arg[2]); + break; + case CMD_LEGIC_INFO: + LegicRfInfo(); + break; + case CMD_LEGIC_ESET: + LegicEMemSet(c->arg[0], c->arg[1], c->d.asBytes); break; #endif #ifdef WITH_ISO14443b - case CMD_READ_SRI512_TAG: - ReadSTMemoryIso14443b(0x0F); - break; - case CMD_READ_SRIX4K_TAG: - ReadSTMemoryIso14443b(0x7F); + case CMD_READ_SRI_TAG: + ReadSTMemoryIso14443b(c->arg[0]); break; case CMD_SNOOP_ISO_14443B: SnoopIso14443b(); break; case CMD_SIMULATE_TAG_ISO_14443B: - SimulateIso14443bTag(); + SimulateIso14443bTag(c->arg[0]); break; case CMD_ISO_14443B_COMMAND: - SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes); + //SendRawCommand14443B(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes); + SendRawCommand14443B_Ex(c); break; #endif @@ -1080,16 +1090,14 @@ void UsbPacketReceived(uint8_t *packet, int len) case CMD_SIMULATE_TAG_ISO_14443a: SimulateIso14443aTag(c->arg[0], c->arg[1], c->d.asBytes); // ## Simulate iso14443a tag - pass tag type & UID break; - case CMD_EPA_PACE_COLLECT_NONCE: EPA_PACE_Collect_Nonce(c); break; case CMD_EPA_PACE_REPLAY: EPA_PACE_Replay(c); break; - case CMD_READER_MIFARE: - ReaderMifare(c->arg[0]); + ReaderMifare(c->arg[0], c->arg[1], c->arg[2]); break; case CMD_MIFARE_READBL: MifareReadBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); @@ -1182,11 +1190,22 @@ void UsbPacketReceived(uint8_t *packet, int len) case CMD_MIFARE_DESFIRE: MifareSendCommand(c->arg[0], c->arg[1], c->d.asBytes); break; - case CMD_MIFARE_COLLECT_NONCES: break; #endif - +#ifdef WITH_EMV + case CMD_EMV_TRANSACTION: + EMVTransaction(); + break; + case CMD_EMV_GET_RANDOM_NUM: + //EMVgetUDOL(); + break; + case CMD_EMV_LOAD_VALUE: + EMVloadvalue(c->arg[0], c->d.asBytes); + break; + case CMD_EMV_DUMP_CARD: + EMVdumpcard(); +#endif #ifdef WITH_ICLASS // Makes use of ISO14443a FPGA Firmware case CMD_SNOOP_ICLASS: @@ -1201,7 +1220,7 @@ void UsbPacketReceived(uint8_t *packet, int len) case CMD_READER_ICLASS_REPLAY: ReaderIClass_Replay(c->arg[0], c->d.asBytes); break; - case CMD_ICLASS_EML_MEMSET: + case CMD_ICLASS_EML_MEMSET: emlSet(c->d.asBytes,c->arg[0], c->arg[1]); break; case CMD_ICLASS_WRITEBLOCK: @@ -1251,26 +1270,55 @@ void UsbPacketReceived(uint8_t *packet, int len) LED_D_OFF(); // LED D indicates field ON or OFF break; - case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: - + case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: { LED_B_ON(); uint8_t *BigBuf = BigBuf_get_addr(); size_t len = 0; - for(size_t i=0; iarg[1]; i += USB_CMD_DATA_SIZE) { - len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE); - cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,BigBuf_get_traceLen(),BigBuf+c->arg[0]+i,len); + size_t startidx = c->arg[0]; + uint8_t isok = FALSE; + // arg0 = startindex + // arg1 = length bytes to transfer + // arg2 = RFU + //Dbprintf("transfer to client parameters: %llu | %llu | %llu", c->arg[0], c->arg[1], c->arg[2]); + + for(size_t i = 0; i < c->arg[1]; i += USB_CMD_DATA_SIZE) { + len = MIN( (c->arg[1] - i), USB_CMD_DATA_SIZE); + isok = cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K, i, len, BigBuf_get_traceLen(), BigBuf + startidx + i, len); + if (!isok) + Dbprintf("transfer to client failed :: | bytes %d", len); } // Trigger a finish downloading signal with an ACK frame - cmd_send(CMD_ACK,1,0,BigBuf_get_traceLen(),getSamplingConfig(),sizeof(sample_config)); + cmd_send(CMD_ACK, 1, 0, BigBuf_get_traceLen(), getSamplingConfig(), sizeof(sample_config)); LED_B_OFF(); break; - + } case CMD_DOWNLOADED_SIM_SAMPLES_125K: { + // 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); + memcpy( b + c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE); + cmd_send(CMD_ACK,1,0,0,0,0); + break; + } + case CMD_DOWNLOAD_EML_BIGBUF: { + LED_B_ON(); + uint8_t *cardmem = BigBuf_get_EM_addr(); + size_t len = 0; + for(size_t i=0; i < c->arg[1]; i += USB_CMD_DATA_SIZE) { + len = MIN((c->arg[1] - i), USB_CMD_DATA_SIZE); + cmd_send(CMD_DOWNLOADED_EML_BIGBUF, i, len, CARD_MEMORY_SIZE, cardmem + c->arg[0] + i, len); + } + // Trigger a finish downloading signal with an ACK frame + cmd_send(CMD_ACK, 1, 0, CARD_MEMORY_SIZE, 0, 0); + LED_B_OFF(); break; - } + } case CMD_READ_MEM: ReadMem(c->arg[0]); break; @@ -1350,10 +1398,7 @@ 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(); @@ -1363,8 +1408,7 @@ void __attribute__((noreturn)) AppMain(void) AT91C_BASE_PIOA->PIO_PDR = GPIO_PCK0; 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; // 4 for 24Mhz pck0, 2 for 48 MHZ pck0 + AT91C_BASE_PMC->PMC_PCKR[0] = AT91C_PMC_CSS_PLL_CLK | AT91C_PMC_PRES_CLK_4; // 4 for 24Mhz pck0, 2 for 48 MHZ pck0 AT91C_BASE_PIOA->PIO_OER = GPIO_PCK0; // Reset SPI @@ -1386,11 +1430,11 @@ void __attribute__((noreturn)) AppMain(void) size_t rx_len; for(;;) { - if (usb_poll()) { - rx_len = usb_read(rx,sizeof(UsbCommand)); - if (rx_len) { - UsbPacketReceived(rx,rx_len); - } + if ( usb_poll_validate_length() ) { + rx_len = usb_read(rx, sizeof(UsbCommand)); + + if (rx_len) + UsbPacketReceived(rx, rx_len); } WDT_HIT();