X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/5cd9ec01e0d6594f7f0f5869f116d8816047d4cb..b216af9a24fb5691ec47e6e961e0a61a343a16d7:/client/cmdhf14a.c?ds=sidebyside diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c index 5937fcad..bd19cee4 100644 --- a/client/cmdhf14a.c +++ b/client/cmdhf14a.c @@ -14,141 +14,165 @@ #include #include #include "util.h" -#include "iso14443crc.h" +#include "../common/iso14443crc.h" #include "data.h" -#include "proxusb.h" +#include "proxmark3.h" #include "ui.h" #include "cmdparser.h" #include "cmdhf14a.h" -#include "common.h" +#include "../include/common.h" #include "cmdmain.h" +#include "../include/mifare.h" static int CmdHelp(const char *Cmd); +static void waitCmd(uint8_t iLen); int CmdHF14AList(const char *Cmd) { - uint8_t got[1920]; - GetFromBigBuf(got, sizeof(got)); - - PrintAndLog("recorded activity:"); - PrintAndLog(" ETU :rssi: who bytes"); - PrintAndLog("---------+----+----+-----------"); - - int i = 0; - int prev = -1; - - for (;;) { - if(i >= 1900) { - break; - } - - bool isResponse; - int timestamp = *((uint32_t *)(got+i)); - if (timestamp & 0x80000000) { - timestamp &= 0x7fffffff; - isResponse = 1; - } else { - isResponse = 0; - } - - int metric = 0; - int parityBits = *((uint32_t *)(got+i+4)); - // 4 bytes of additional information... - // maximum of 32 additional parity bit information - // - // TODO: - // at each quarter bit period we can send power level (16 levels) - // or each half bit period in 256 levels. - - - int len = got[i+8]; - - if (len > 100) { - break; - } - if (i + len >= 1900) { - break; - } - - uint8_t *frame = (got+i+9); - - // Break and stick with current result if buffer was not completely full - if (frame[0] == 0x44 && frame[1] == 0x44 && frame[3] == 0x44) { break; } - - char line[1000] = ""; - int j; - for (j = 0; j < len; j++) { - int oddparity = 0x01; - int k; - - for (k=0;k<8;k++) { - oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01); - } - - //if((parityBits >> (len - j - 1)) & 0x01) { - if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) { - sprintf(line+(j*4), "%02x! ", frame[j]); - } - else { - sprintf(line+(j*4), "%02x ", frame[j]); - } - } - - char *crc; - crc = ""; - if (len > 2) { - uint8_t b1, b2; - for (j = 0; j < (len - 1); j++) { - // gives problems... search for the reason.. - /*if(frame[j] == 0xAA) { - switch(frame[j+1]) { - case 0x01: - crc = "[1] Two drops close after each other"; - break; - case 0x02: - crc = "[2] Potential SOC with a drop in second half of bitperiod"; - break; - case 0x03: - crc = "[3] Segment Z after segment X is not possible"; - break; - case 0x04: - crc = "[4] Parity bit of a fully received byte was wrong"; - break; - default: - crc = "[?] Unknown error"; - break; - } - break; - }*/ - } - - if (strlen(crc)==0) { - ComputeCrc14443(CRC_14443_A, frame, len-2, &b1, &b2); - if (b1 != frame[len-2] || b2 != frame[len-1]) { - crc = (isResponse & (len < 6)) ? "" : " !crc"; - } else { - crc = ""; - } - } - } else { - crc = ""; // SHORT - } - - char metricString[100]; - if (isResponse) { - sprintf(metricString, "%3d", metric); - } else { - strcpy(metricString, " "); - } + bool ShowWaitCycles = false; + char param = param_getchar(Cmd, 0); + + if (param == 'h' || (param != 0 && param != 'f')) { + PrintAndLog("List data in trace buffer."); + PrintAndLog("Usage: hf 14a list [f]"); + PrintAndLog("f - show frame delay times as well"); + PrintAndLog("sample: hf 14a list f"); + return 0; + } - PrintAndLog(" +%7d: %s: %s %s %s", - (prev < 0 ? 0 : (timestamp - prev)), - metricString, - (isResponse ? "TAG" : " "), line, crc); + if (param == 'f') { + ShowWaitCycles = true; + } + + uint8_t got[1920]; + GetFromBigBuf(got,sizeof(got),0); + WaitForResponse(CMD_ACK,NULL); + + PrintAndLog("Recorded Activity"); + PrintAndLog(""); + PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer"); + PrintAndLog("All times are in carrier periods (1/13.56Mhz)"); + PrintAndLog(""); + PrintAndLog(" Start | End | Src | Data"); + PrintAndLog("-----------|-----------|-----|--------"); + + int i = 0; + uint32_t first_timestamp = 0; + uint32_t timestamp; + uint32_t EndOfTransmissionTimestamp = 0; + + for (;;) { + if(i >= 1900) { + break; + } + + bool isResponse; + timestamp = *((uint32_t *)(got+i)); + if (timestamp & 0x80000000) { + timestamp &= 0x7fffffff; + isResponse = true; + } else { + isResponse = false; + } + + if(i==0) { + first_timestamp = timestamp; + } + + int parityBits = *((uint32_t *)(got+i+4)); + + int len = got[i+8]; + + if (len > 100) { + break; + } + if (i + len >= 1900) { + break; + } + + uint8_t *frame = (got+i+9); + + // Break and stick with current result if buffer was not completely full + if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break; + + char line[1000] = ""; + int j; + if (len) { + for (j = 0; j < len; j++) { + int oddparity = 0x01; + int k; + + for (k=0;k<8;k++) { + oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01); + } + + //if((parityBits >> (len - j - 1)) & 0x01) { + if (isResponse && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) { + sprintf(line+(j*4), "%02x! ", frame[j]); + } else { + sprintf(line+(j*4), "%02x ", frame[j]); + } + } + } else { + if (ShowWaitCycles) { + uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff; + sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp)); + } + } + + char *crc; + crc = ""; + if (len > 2) { + uint8_t b1, b2; + for (j = 0; j < (len - 1); j++) { + // gives problems... search for the reason.. + /*if(frame[j] == 0xAA) { + switch(frame[j+1]) { + case 0x01: + crc = "[1] Two drops close after each other"; + break; + case 0x02: + crc = "[2] Potential SOC with a drop in second half of bitperiod"; + break; + case 0x03: + crc = "[3] Segment Z after segment X is not possible"; + break; + case 0x04: + crc = "[4] Parity bit of a fully received byte was wrong"; + break; + default: + crc = "[?] Unknown error"; + break; + } + break; + }*/ + } + + if (strlen(crc)==0) { + ComputeCrc14443(CRC_14443_A, frame, len-2, &b1, &b2); + if (b1 != frame[len-2] || b2 != frame[len-1]) { + crc = (isResponse & (len < 6)) ? "" : " !crc"; + } else { + crc = ""; + } + } + } else { + crc = ""; // SHORT + } + + i += (len + 9); + + EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff; + + if (!ShowWaitCycles) i += 9; + + PrintAndLog(" %9d | %9d | %s | %s %s", + (timestamp - first_timestamp), + (EndOfTransmissionTimestamp - first_timestamp), + (len?(isResponse ? "Tag" : "Rdr"):" "), + line, crc); - prev = timestamp; - i += (len + 9); - } + } return 0; } @@ -161,42 +185,199 @@ int CmdHF14AReader(const char *Cmd) { UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}}; SendCommand(&c); - UsbCommand * resp = WaitForResponse(CMD_ACK); - uint8_t * uid = resp->d.asBytes; - iso14a_card_select_t * card = (iso14a_card_select_t *)(uid + 12); - if(resp->arg[0] == 0) { + UsbCommand resp; + WaitForResponse(CMD_ACK,&resp); + + iso14a_card_select_t *card = (iso14a_card_select_t *)resp.d.asBytes; + + if(resp.arg[0] == 0) { PrintAndLog("iso14443a card select failed"); return 0; } PrintAndLog("ATQA : %02x %02x", card->atqa[0], card->atqa[1]); - PrintAndLog(" UID : %s", sprint_hex(uid, 12)); - PrintAndLog(" SAK : %02x [%d]", card->sak, resp->arg[0]); + PrintAndLog(" UID : %s", sprint_hex(card->uid, card->uidlen)); + PrintAndLog(" SAK : %02x [%d]", card->sak, resp.arg[0]); switch (card->sak) { - case 0x00: PrintAndLog(" SAK : NXP MIFARE Ultralight | Ultralight C"); break; - case 0x04: PrintAndLog(" SAK : NXP MIFARE (various !DESFire !DESFire EV1)"); break; - - case 0x08: PrintAndLog(" SAK : NXP MIFARE CLASSIC 1k | Plus 2k"); break; - case 0x09: PrintAndLog(" SAK : NXP MIFARE Mini 0.3k"); break; - case 0x10: PrintAndLog(" SAK : NXP MIFARE Plus 2k"); break; - case 0x11: PrintAndLog(" SAK : NXP MIFARE Plus 4k"); break; - case 0x18: PrintAndLog(" SAK : NXP MIFARE Classic 4k | Plus 4k"); break; - case 0x20: PrintAndLog(" SAK : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k | JCOP 31/41"); break; - case 0x24: PrintAndLog(" SAK : NXP MIFARE DESFire | DESFire EV1"); break; - case 0x28: PrintAndLog(" SAK : JCOP31 or JCOP41 v2.3.1"); break; - case 0x38: PrintAndLog(" SAK : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break; - case 0x88: PrintAndLog(" SAK : Infineon MIFARE CLASSIC 1K"); break; - case 0x98: PrintAndLog(" SAK : Gemplus MPCOS"); break; + case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break; + case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break; + case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break; + case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break; + case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break; + case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break; + case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break; + case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break; + case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break; + case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break; + case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break; + case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break; + case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break; default: ; } - if(resp->arg[0] == 1) + if(resp.arg[0] == 1) { + bool ta1 = 0, tb1 = 0, tc1 = 0; + int pos; + PrintAndLog(" ATS : %s", sprint_hex(card->ats, card->ats_len)); - else - PrintAndLog("proprietary non-iso14443a card found, RATS not supported"); + if (card->ats_len > 0) { + PrintAndLog(" - TL : length is %d bytes", card->ats[0]); + } + if (card->ats_len > 1) { + ta1 = (card->ats[1] & 0x10) == 0x10; + tb1 = (card->ats[1] & 0x20) == 0x20; + tc1 = (card->ats[1] & 0x40) == 0x40; + PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, " + "TC1 is%s present, FSCI is %d", + (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"), + (card->ats[1] & 0x0f)); + } + pos = 2; + if (ta1 && card->ats_len > pos) { + char dr[16], ds[16]; + dr[0] = ds[0] = '\0'; + if (card->ats[pos] & 0x10) strcat(ds, "2, "); + if (card->ats[pos] & 0x20) strcat(ds, "4, "); + if (card->ats[pos] & 0x40) strcat(ds, "8, "); + if (card->ats[pos] & 0x01) strcat(dr, "2, "); + if (card->ats[pos] & 0x02) strcat(dr, "4, "); + if (card->ats[pos] & 0x04) strcat(dr, "8, "); + if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0'; + if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0'; + PrintAndLog(" - TA1 : different divisors are%s supported, " + "DR: [%s], DS: [%s]", + (card->ats[pos] & 0x80 ? " NOT" : ""), dr, ds); + pos++; + } + if (tb1 && card->ats_len > pos) { + PrintAndLog(" - TB1 : SFGI = %d, FWI = %d", + (card->ats[pos] & 0x08), + (card->ats[pos] & 0x80) >> 4); + pos++; + } + if (tc1 && card->ats_len > pos) { + PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported", + (card->ats[pos] & 0x01) ? "" : " NOT", + (card->ats[pos] & 0x02) ? "" : " NOT"); + pos++; + } + if (card->ats_len > pos) { + char *tip = ""; + if (card->ats_len - pos > 7) { + if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) { + tip = "-> MIFARE Plus X 2K or 4K"; + } else if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) { + tip = "-> MIFARE Plus S 2K or 4K"; + } + } + PrintAndLog(" - HB : %s%s", sprint_hex(card->ats + pos, card->ats_len - pos - 2), tip); + if (card->ats[pos] == 0xC1) { + PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type"); + PrintAndLog(" %02x -> Length is %d bytes", + card->ats[pos + 1], card->ats[pos + 1]); + switch (card->ats[pos + 2] & 0xf0) { + case 0x10: + PrintAndLog(" 1x -> MIFARE DESFire"); + break; + case 0x20: + PrintAndLog(" 2x -> MIFARE Plus"); + break; + } + switch (card->ats[pos + 2] & 0x0f) { + case 0x00: + PrintAndLog(" x0 -> <1 kByte"); + break; + case 0x01: + PrintAndLog(" x0 -> 1 kByte"); + break; + case 0x02: + PrintAndLog(" x0 -> 2 kByte"); + break; + case 0x03: + PrintAndLog(" x0 -> 4 kByte"); + break; + case 0x04: + PrintAndLog(" x0 -> 8 kByte"); + break; + } + switch (card->ats[pos + 3] & 0xf0) { + case 0x00: + PrintAndLog(" 0x -> Engineering sample"); + break; + case 0x20: + PrintAndLog(" 2x -> Released"); + break; + } + switch (card->ats[pos + 3] & 0x0f) { + case 0x00: + PrintAndLog(" x0 -> Generation 1"); + break; + case 0x01: + PrintAndLog(" x1 -> Generation 2"); + break; + case 0x02: + PrintAndLog(" x2 -> Generation 3"); + break; + } + switch (card->ats[pos + 4] & 0x0f) { + case 0x00: + PrintAndLog(" x0 -> Only VCSL supported"); + break; + case 0x01: + PrintAndLog(" x1 -> VCS, VCSL, and SVC supported"); + break; + case 0x0E: + PrintAndLog(" xE -> no VCS command supported"); + break; + } + } + } + } else { + PrintAndLog("proprietary non iso14443a-4 card found, RATS not supported"); + } - return resp->arg[0]; + return resp.arg[0]; +} + +// Collect ISO14443 Type A UIDs +int CmdHF14ACUIDs(const char *Cmd) +{ + // requested number of UIDs + int n = atoi(Cmd); + // collect at least 1 (e.g. if no parameter was given) + n = n > 0 ? n : 1; + + PrintAndLog("Collecting %d UIDs", n); + PrintAndLog("Start: %u", time(NULL)); + // repeat n times + for (int i = 0; i < n; i++) { + // execute anticollision procedure + UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}}; + SendCommand(&c); + + UsbCommand resp; + WaitForResponse(CMD_ACK,&resp); + + uint8_t *uid = resp.d.asBytes; + iso14a_card_select_t *card = (iso14a_card_select_t *)(uid + 12); + + // check if command failed + if (resp.arg[0] == 0) { + PrintAndLog("Card select failed."); + } else { + // check if UID is 4 bytes + if ((card->atqa[1] & 0xC0) == 0) { + PrintAndLog("%02X%02X%02X%02X", + *uid, *(uid + 1), *(uid + 2), *(uid + 3)); + } else { + PrintAndLog("UID longer than 4 bytes"); + } + } + } + PrintAndLog("End: %u", time(NULL)); + + return 1; } // ## simulate iso14443a tag @@ -230,7 +411,7 @@ int CmdHF14ASim(const char *Cmd) // Are we handling the (optional) second part uid? if (long_uid > 0xffffffff) { - PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014llx)",long_uid); + PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid); // Store the second part c.arg[2] = (long_uid & 0xffffffff); long_uid >>= 32; @@ -245,10 +426,6 @@ int CmdHF14ASim(const char *Cmd) // At lease save the mandatory first part of the UID c.arg[0] = long_uid & 0xffffffff; - - // At lease save the mandatory first part of the UID - c.arg[0] = long_uid & 0xffffffff; - if (c.arg[1] == 0) { PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]); } @@ -308,20 +485,184 @@ int CmdHF14ASnoop(const char *Cmd) { return 0; } +int CmdHF14ACmdRaw(const char *cmd) { + UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}}; + uint8_t reply=1; + uint8_t crc=0; + uint8_t power=0; + uint8_t active=0; + uint8_t active_select=0; + uint16_t numbits=0; + uint16_t timeout=0; + uint8_t bTimeout=0; + char buf[5]=""; + int i=0; + uint8_t data[USB_CMD_DATA_SIZE]; + unsigned int datalen=0, temp; + + if (strlen(cmd)<2) { + PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <0A 0B 0C ... hex>"); + PrintAndLog(" -r do not read response"); + PrintAndLog(" -c calculate and append CRC"); + PrintAndLog(" -p leave the signal field ON after receive"); + PrintAndLog(" -a active signal field ON without select"); + PrintAndLog(" -s active signal field ON with select"); + PrintAndLog(" -b number of bits to send. Useful for send partial byte"); + PrintAndLog(" -t timeout"); + return 0; + } + + // strip + while (*cmd==' ' || *cmd=='\t') cmd++; + + while (cmd[i]!='\0') { + if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; } + if (cmd[i]=='-') { + switch (cmd[i+1]) { + case 'r': + reply=0; + break; + case 'c': + crc=1; + break; + case 'p': + power=1; + break; + case 'a': + active=1; + break; + case 's': + active_select=1; + break; + case 'b': + sscanf(cmd+i+2,"%d",&temp); + numbits = temp & 0xFFFF; + i+=3; + while(cmd[i]!=' ' && cmd[i]!='\0') { i++; } + i-=2; + break; + case 't': + bTimeout=1; + sscanf(cmd+i+2,"%d",&temp); + timeout = temp & 0xFFFF; + i+=3; + while(cmd[i]!=' ' && cmd[i]!='\0') { i++; } + i+=2; + break; + default: + PrintAndLog("Invalid option"); + return 0; + } + i+=2; + continue; + } + if ((cmd[i]>='0' && cmd[i]<='9') || + (cmd[i]>='a' && cmd[i]<='f') || + (cmd[i]>='A' && cmd[i]<='F') ) { + buf[strlen(buf)+1]=0; + buf[strlen(buf)]=cmd[i]; + i++; + + if (strlen(buf)>=2) { + sscanf(buf,"%x",&temp); + data[datalen]=(uint8_t)(temp & 0xff); + *buf=0; + if (++datalen>sizeof(data)){ + if (crc) + PrintAndLog("Buffer is full, we can't add CRC to your data"); + break; + } + } + continue; + } + PrintAndLog("Invalid char on input"); + return 0; + } + if(crc && datalen>0 && datalenMAX_TIMEOUT) { + c.arg[2] = MAX_TIMEOUT; + PrintAndLog("Set timeout to 624 ms. The max we can wait for response"); + } + } + if(power) + c.arg[0] |= ISO14A_NO_DISCONNECT; + if(datalen>0) + c.arg[0] |= ISO14A_RAW; + + // Max buffer is USB_CMD_DATA_SIZE + c.arg[1] = (datalen & 0xFFFF) | (numbits << 16); + memcpy(c.d.asBytes,data,datalen); + + SendCommand(&c); + + if (reply) { + if(active_select) + waitCmd(1); + if(datalen>0) + waitCmd(0); + } // if reply + return 0; +} + +static void waitCmd(uint8_t iSelect) +{ + uint8_t *recv; + UsbCommand resp; + char *hexout; + + if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) { + recv = resp.d.asBytes; + uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0]; + PrintAndLog("received %i octets",iLen); + if(!iLen) + return; + hexout = (char *)malloc(iLen * 3 + 1); + if (hexout != NULL) { + for (int i = 0; i < iLen; i++) { // data in hex + sprintf(&hexout[i * 3], "%02X ", recv[i]); + } + PrintAndLog("%s", hexout); + free(hexout); + } else { + PrintAndLog("malloc failed your client has low memory?"); + } + } else { + PrintAndLog("timeout while waiting for reply."); + } +} + static command_t CommandTable[] = { - {"help", CmdHelp, 1, "This help"}, - {"list", CmdHF14AList, 0, "List ISO 14443a history"}, - {"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"}, - {"sim", CmdHF14ASim, 0, " -- Fake ISO 14443a tag"}, - {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"}, + {"help", CmdHelp, 1, "This help"}, + {"list", CmdHF14AList, 0, "List ISO 14443a history"}, + {"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"}, + {"cuids", CmdHF14ACUIDs, 0, " Collect n>0 ISO14443 Type A UIDs in one go"}, + {"sim", CmdHF14ASim, 0, " -- Fake ISO 14443a tag"}, + {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"}, + {"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"}, {NULL, NULL, 0, NULL} }; -int CmdHF14A(const char *Cmd) -{ +int CmdHF14A(const char *Cmd) { // flush - while (WaitForResponseTimeout(CMD_ACK, 500) != NULL) ; + WaitForResponseTimeout(CMD_ACK,NULL,100); // parse CmdsParse(CommandTable, Cmd);