#include <stdio.h>\r
#include <string.h>\r
#include <inttypes.h>\r
+#include <time.h>\r
#include "proxmark3.h"\r
#include "ui.h"\r
#include "graph.h"\r
}\r
int usage_t55xx_write(){\r
PrintAndLog("Usage: lf t55xx wr <block> <data> [password]");\r
- PrintAndLog(" <block>, block number to read. Between 0-7");\r
+ PrintAndLog(" <block>, block number to write. Between 0-7");\r
PrintAndLog(" <data>, 4 bytes of data to write (8 hex characters)");\r
PrintAndLog(" [password], OPTIONAL password 4bytes (8 hex characters)");\r
PrintAndLog("");\r
PrintAndLog("Examples:");\r
- PrintAndLog(" lf t55xx wd 3 11223344 - write 11223344 to block 3");\r
- PrintAndLog(" lf t55xx wd 3 11223344 feedbeef - write 11223344 to block 3 password feedbeef");\r
+ PrintAndLog(" lf t55xx wr 3 11223344 - write 11223344 to block 3");\r
+ PrintAndLog(" lf t55xx wr 3 11223344 feedbeef - write 11223344 to block 3 password feedbeef");\r
PrintAndLog("");\r
return 0;\r
}\r
\r
bool DecodeT55xxBlock(){\r
\r
- char buf[8] = {0x00};\r
+ char buf[30] = {0x00};\r
char *cmdStr = buf;\r
int ans = 0;\r
uint8_t bitRate[8] = {8,16,32,40,50,64,100,128};\r
-\r
DemodBufferLen = 0x00;\r
\r
+ //trim 1/2 a clock from beginning\r
+ snprintf(cmdStr, sizeof(buf),"%d", bitRate[config.bitrate]/2 );\r
+ CmdLtrim(cmdStr);\r
switch( config.modulation ){\r
case DEMOD_FSK:\r
- sprintf(cmdStr,"%d", bitRate[config.bitrate]/2 );\r
- CmdLtrim(cmdStr); \r
- sprintf(cmdStr,"%d %d", bitRate[config.bitrate], config.inverted );\r
+ snprintf(cmdStr, sizeof(buf),"%d %d", bitRate[config.bitrate], config.inverted );\r
ans = FSKrawDemod(cmdStr, FALSE);\r
break;\r
case DEMOD_FSK1:\r
case DEMOD_FSK1a:\r
- sprintf(cmdStr,"%d", bitRate[config.bitrate]/2 );\r
- CmdLtrim(cmdStr); \r
- sprintf(cmdStr,"%d %d 8 5", bitRate[config.bitrate], config.inverted );\r
+ snprintf(cmdStr, sizeof(buf),"%d %d 8 5", bitRate[config.bitrate], config.inverted );\r
ans = FSKrawDemod(cmdStr, FALSE);\r
break;\r
case DEMOD_FSK2:\r
case DEMOD_FSK2a:\r
- sprintf(cmdStr,"%d", bitRate[config.bitrate]/2 );\r
- CmdLtrim(cmdStr); \r
- sprintf(cmdStr,"%d %d 10 8", bitRate[config.bitrate], config.inverted );\r
+ snprintf(cmdStr, sizeof(buf),"%d %d 10 8", bitRate[config.bitrate], config.inverted );\r
ans = FSKrawDemod(cmdStr, FALSE);\r
break;\r
case DEMOD_ASK:\r
- sprintf(cmdStr,"%d %d 0", bitRate[config.bitrate], config.inverted );\r
- ans = ASKmanDemod(cmdStr, FALSE, FALSE);\r
+ snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );\r
+ ans = ASKDemod(cmdStr, FALSE, FALSE, 1);\r
break;\r
case DEMOD_PSK1:\r
- sprintf(cmdStr,"%d %d 0", bitRate[config.bitrate], config.inverted );\r
+ snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );\r
ans = PSKDemod(cmdStr, FALSE);\r
break;\r
case DEMOD_PSK2: //inverted won't affect this\r
case DEMOD_PSK3: //not fully implemented\r
- sprintf(cmdStr,"%d 0 1", bitRate[config.bitrate] );\r
+ snprintf(cmdStr, sizeof(buf),"%d 0 1", bitRate[config.bitrate] );\r
ans = PSKDemod(cmdStr, FALSE);\r
psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
break;\r
case DEMOD_NRZ:\r
- sprintf(cmdStr,"%d %d 1", bitRate[config.bitrate], config.inverted );\r
+ snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );\r
ans = NRZrawDemod(cmdStr, FALSE);\r
break;\r
case DEMOD_BI:\r
case DEMOD_BIa:\r
- sprintf(cmdStr,"0 %d %d 0", bitRate[config.bitrate], config.inverted );\r
+ snprintf(cmdStr, sizeof(buf),"0 %d %d 0", bitRate[config.bitrate], config.inverted );\r
ans = ASKbiphaseDemod(cmdStr, FALSE);\r
break;\r
default:\r
char cmdStr[8] = {0};\r
uint8_t hits = 0;\r
t55xx_conf_block_t tests[15];\r
- \r
+ int bitRate=0;\r
+ uint8_t fc1 = 0, fc2 = 0, clk=0;\r
+ save_restoreGB(1);\r
if (GetFskClock("", FALSE, FALSE)){ \r
- uint8_t fc1 = 0, fc2 = 0, clk=0;\r
fskClocks(&fc1, &fc2, &clk, FALSE);\r
sprintf(cmdStr,"%d", clk/2);\r
CmdLtrim(cmdStr);\r
- if ( FSKrawDemod("0 0", FALSE) && test(DEMOD_FSK, &tests[hits].offset)){\r
+ if ( FSKrawDemod("0 0", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)){\r
tests[hits].modulation = DEMOD_FSK;\r
if (fc1==8 && fc2 == 5)\r
tests[hits].modulation = DEMOD_FSK1a;\r
else if (fc1==10 && fc2 == 8)\r
tests[hits].modulation = DEMOD_FSK2;\r
-\r
+ tests[hits].bitrate = bitRate;\r
tests[hits].inverted = FALSE;\r
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
++hits;\r
}\r
- if ( FSKrawDemod("0 1", FALSE) && test(DEMOD_FSK, &tests[hits].offset)) {\r
+ if ( FSKrawDemod("0 1", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)) {\r
tests[hits].modulation = DEMOD_FSK;\r
- if (fc1==8 && fc2 == 5)\r
+ if (fc1 == 8 && fc2 == 5)\r
tests[hits].modulation = DEMOD_FSK1;\r
- else if (fc1==10 && fc2 == 8)\r
+ else if (fc1 == 10 && fc2 == 8)\r
tests[hits].modulation = DEMOD_FSK2a;\r
\r
+ tests[hits].bitrate = bitRate;\r
tests[hits].inverted = TRUE;\r
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
++hits;\r
}\r
} else {\r
- if ( ASKmanDemod("0 0 1", FALSE, FALSE) && test(DEMOD_ASK, &tests[hits].offset)) {\r
- tests[hits].modulation = DEMOD_ASK;\r
- tests[hits].inverted = FALSE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
+ clk = GetAskClock("", FALSE, FALSE);\r
+ if (clk>0) {\r
+ sprintf(cmdStr,"%d", clk/2);\r
+ CmdLtrim(cmdStr);\r
+ if ( ASKDemod("0 0 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {\r
+ tests[hits].modulation = DEMOD_ASK;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = FALSE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
}\r
-\r
- if ( ASKmanDemod("0 1 1", FALSE, FALSE) && test(DEMOD_ASK, &tests[hits].offset)) {\r
- tests[hits].modulation = DEMOD_ASK;\r
- tests[hits].inverted = TRUE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
+ if ( ASKDemod("0 1 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {\r
+ tests[hits].modulation = DEMOD_ASK;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = TRUE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
+ }\r
+ if ( ASKbiphaseDemod("0 0 0 0", FALSE) && test(DEMOD_BI, &tests[hits].offset, &bitRate) ) {\r
+ tests[hits].modulation = DEMOD_BI;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = FALSE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
+ }\r
+ if ( ASKbiphaseDemod("0 0 1 0", FALSE) && test(DEMOD_BIa, &tests[hits].offset, &bitRate) ) {\r
+ tests[hits].modulation = DEMOD_BIa;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = TRUE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
}\r
- \r
- if ( NRZrawDemod("0 0 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset)) {\r
- tests[hits].modulation = DEMOD_NRZ;\r
- tests[hits].inverted = FALSE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
}\r
+ //undo trim from ask\r
+ save_restoreGB(0);\r
+ clk = GetNrzClock("", FALSE, FALSE);\r
+ if (clk>0) {\r
+ sprintf(cmdStr,"%d", clk/2);\r
+ CmdLtrim(cmdStr);\r
+ if ( NRZrawDemod("0 0 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {\r
+ tests[hits].modulation = DEMOD_NRZ;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = FALSE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
+ }\r
\r
- if ( NRZrawDemod("0 1 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset)) {\r
- tests[hits].modulation = DEMOD_NRZ;\r
- tests[hits].inverted = TRUE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
+ if ( NRZrawDemod("0 1 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {\r
+ tests[hits].modulation = DEMOD_NRZ;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = TRUE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
}\r
- \r
- if ( PSKDemod("0 0 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset)) {\r
- tests[hits].modulation = DEMOD_PSK1;\r
- tests[hits].inverted = FALSE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
}\r
\r
- if ( PSKDemod("0 1 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset)) {\r
- tests[hits].modulation = DEMOD_PSK1;\r
- tests[hits].inverted = TRUE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
- }\r
-\r
- // PSK2 - needs a call to psk1TOpsk2.\r
- if ( PSKDemod("0 0 1", FALSE)) {\r
- psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
- if (test(DEMOD_PSK2, &tests[hits].offset)){\r
- tests[hits].modulation = DEMOD_PSK2;\r
+ //undo trim from nrz\r
+ save_restoreGB(0);\r
+ clk = GetPskClock("", FALSE, FALSE);\r
+ if (clk>0) {\r
+ PrintAndLog("clk %d",clk);\r
+ sprintf(cmdStr,"%d", clk/2);\r
+ CmdLtrim(cmdStr); \r
+ if ( PSKDemod("0 0 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {\r
+ tests[hits].modulation = DEMOD_PSK1;\r
+ tests[hits].bitrate = bitRate;\r
tests[hits].inverted = FALSE;\r
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
++hits;\r
}\r
- } // inverse waves does not affect this demod\r
-\r
- // PSK3 - needs a call to psk1TOpsk2.\r
- if ( PSKDemod("0 0 1", FALSE)) {\r
- psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
- if (test(DEMOD_PSK3, &tests[hits].offset)){\r
- tests[hits].modulation = DEMOD_PSK3;\r
- tests[hits].inverted = FALSE;\r
+ if ( PSKDemod("0 1 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {\r
+ tests[hits].modulation = DEMOD_PSK1;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = TRUE;\r
tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
++hits;\r
}\r
- } // inverse waves does not affect this demod\r
- \r
- if ( ASKbiphaseDemod("0 0 0 1", FALSE) && test(DEMOD_BI, &tests[hits].offset) ) {\r
- tests[hits].modulation = DEMOD_BI;\r
- tests[hits].inverted = FALSE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
- }\r
- if ( ASKbiphaseDemod("0 0 1 1", FALSE) && test(DEMOD_BIa, &tests[hits].offset) ) {\r
- tests[hits].modulation = DEMOD_BIa;\r
- tests[hits].inverted = TRUE;\r
- tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
- ++hits;\r
+ // PSK2 - needs a call to psk1TOpsk2.\r
+ if ( PSKDemod("0 0 1", FALSE)) {\r
+ psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
+ if (test(DEMOD_PSK2, &tests[hits].offset, &bitRate)){\r
+ tests[hits].modulation = DEMOD_PSK2;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = FALSE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
+ }\r
+ } // inverse waves does not affect this demod\r
+ // PSK3 - needs a call to psk1TOpsk2.\r
+ if ( PSKDemod("0 0 1", FALSE)) {\r
+ psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
+ if (test(DEMOD_PSK3, &tests[hits].offset, &bitRate)){\r
+ tests[hits].modulation = DEMOD_PSK3;\r
+ tests[hits].bitrate = bitRate;\r
+ tests[hits].inverted = FALSE;\r
+ tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
+ ++hits;\r
+ }\r
+ } // inverse waves does not affect this demod\r
}\r
} \r
if ( hits == 1) {\r
config.modulation = tests[0].modulation;\r
+ config.bitrate = tests[0].bitrate;\r
config.inverted = tests[0].inverted;\r
config.offset = tests[0].offset;\r
config.block0 = tests[0].block0;\r
case DEMOD_FSK2:\r
case DEMOD_FSK2a:\r
detRate = GetFskClock("",FALSE, FALSE); \r
- if (expected[readRate] == detRate) {\r
- config.bitrate = readRate;\r
+ if (expected[readRate] == detRate) \r
return TRUE;\r
- }\r
break;\r
case DEMOD_ASK:\r
case DEMOD_BI:\r
case DEMOD_BIa:\r
detRate = GetAskClock("",FALSE, FALSE); \r
- if (expected[readRate] == detRate) {\r
- config.bitrate = readRate;\r
+ if (expected[readRate] == detRate) \r
return TRUE;\r
- }\r
break;\r
case DEMOD_PSK1:\r
case DEMOD_PSK2:\r
case DEMOD_PSK3:\r
detRate = GetPskClock("",FALSE, FALSE); \r
- if (expected[readRate] == detRate) {\r
- config.bitrate = readRate;\r
+ if (expected[readRate] == detRate)\r
return TRUE;\r
- }\r
break;\r
case DEMOD_NRZ:\r
detRate = GetNrzClock("",FALSE, FALSE); \r
- if (expected[readRate] == detRate) {\r
- config.bitrate = readRate;\r
+ if (expected[readRate] == detRate)\r
return TRUE;\r
- }\r
break;\r
default:\r
return FALSE;\r
return FALSE;\r
}\r
\r
-bool test(uint8_t mode, uint8_t *offset){\r
+bool test(uint8_t mode, uint8_t *offset, int *fndBitRate){\r
\r
- if ( !DemodBufferLen) return FALSE;\r
+ if ( DemodBufferLen < 64 ) return FALSE;\r
uint8_t si = 0;\r
for (uint8_t idx = 0; idx < 64; idx++){\r
si = idx;\r
if ( resv > 0x00) continue;\r
\r
uint8_t xtRate = PackBits(si, 3, DemodBuffer); si += 3; //extended mode part of rate\r
- uint8_t bitRate = PackBits(si, 3, DemodBuffer); si += 3; //bit rate\r
+ int bitRate = PackBits(si, 3, DemodBuffer); si += 3; //bit rate\r
+ if (bitRate > 7) continue;\r
uint8_t extend = PackBits(si, 1, DemodBuffer); si += 1; //bit 15 extended mode\r
uint8_t modread = PackBits(si, 5, DemodBuffer); si += 5+2+1; \r
//uint8_t pskcr = PackBits(si, 2, DemodBuffer); si += 2+1; //could check psk cr\r
//test modulation\r
if (!testModulation(mode, modread)) continue;\r
if (!testBitRate(bitRate, mode)) continue;\r
+ *fndBitRate = bitRate;\r
*offset = idx;\r
return TRUE;\r
}\r
return FALSE;\r
}\r
\r
-void printT55xxBlock(const char *demodStr){\r
+void printT55xxBlock(const char *blockNum){\r
\r
uint8_t i = config.offset;\r
uint8_t endpos = 32 + i;\r
bits[i - config.offset]=DemodBuffer[i];\r
\r
blockData = PackBits(0, 32, bits);\r
- PrintAndLog("0x%08X %s [%s]", blockData, sprint_bin(bits,32), demodStr);\r
+ PrintAndLog("[%s] 0x%08X %s", blockNum, blockData, sprint_bin(bits,32));\r
}\r
\r
int special(const char *Cmd) {\r
uint32_t bl0 = PackBits(si, 32, DemodBuffer);\r
uint32_t bl1 = PackBits(si+32, 32, DemodBuffer);\r
\r
- uint32_t acl = PackBits(si, 8, DemodBuffer); si += 8;\r
- uint32_t mfc = PackBits(si, 8, DemodBuffer); si += 8;\r
- uint32_t cid = PackBits(si, 5, DemodBuffer); si += 5;\r
- uint32_t icr = PackBits(si, 3, DemodBuffer); si += 3;\r
- uint32_t year = PackBits(si, 4, DemodBuffer); si += 4;\r
- uint32_t quarter = PackBits(si, 2, DemodBuffer); si += 2;\r
- uint32_t lotid = PackBits(si, 14, DemodBuffer); si += 14;\r
- uint32_t wafer = PackBits(si, 5, DemodBuffer); si += 5;\r
+ uint32_t acl = PackBits(si, 8, DemodBuffer); si += 8;\r
+ uint32_t mfc = PackBits(si, 8, DemodBuffer); si += 8;\r
+ uint32_t cid = PackBits(si, 5, DemodBuffer); si += 5;\r
+ uint32_t icr = PackBits(si, 3, DemodBuffer); si += 3;\r
+ uint32_t year = PackBits(si, 4, DemodBuffer); si += 4;\r
+ uint32_t quarter = PackBits(si, 2, DemodBuffer); si += 2;\r
+ uint32_t lotid = PackBits(si, 14, DemodBuffer); si += 14;\r
+ uint32_t wafer = PackBits(si, 5, DemodBuffer); si += 5;\r
uint32_t dw = PackBits(si, 15, DemodBuffer); \r
\r
+ time_t t = time(NULL);\r
+ struct tm tm = *localtime(&t);\r
+ if ( year > tm.tm_year-110)\r
+ year += 2000;\r
+ else\r
+ year += 2010;\r
+\r
+ if ( acl != 0xE0 ) {\r
+ PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. ");\r
+ return 1;\r
+ }\r
+\r
PrintAndLog("");\r
PrintAndLog("-- T55xx Trace Information ----------------------------------");\r
PrintAndLog("-------------------------------------------------------------");\r
PrintAndLog(" CID : 0x%02X (%d) - %s", cid, cid, GetModelStrFromCID(cid));\r
PrintAndLog(" ICR IC Revision : %d",icr );\r
PrintAndLog(" Manufactured");\r
- PrintAndLog(" Year/Quarter : 20?%d/%d",year, quarter);\r
+ PrintAndLog(" Year/Quarter : %d/%d",year, quarter);\r
PrintAndLog(" Lot ID : %d", lotid );\r
PrintAndLog(" Wafer number : %d", wafer);\r
PrintAndLog(" Die Number : %d", dw);\r
PrintAndLog(" Block 1 : 0x%08X %s", bl1, sprint_bin(DemodBuffer+config.offset+repeat+32,32) );\r
PrintAndLog("-------------------------------------------------------------");\r
\r
- if ( acl != 0xE0 )\r
- PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. ");\r
/*\r
TRACE - BLOCK O\r
Bits Definition HEX\r
\r
if (strlen(Cmd)==0)\r
AquireData( CONFIGURATION_BLOCK );\r
- \r
+\r
if (!DecodeT55xxBlock()) return 1;\r
\r
- if ( !DemodBufferLen) return 1;\r
+ if ( DemodBufferLen < 32) return 1;\r
\r
uint8_t si = config.offset;\r
uint32_t bl0 = PackBits(si, 32, DemodBuffer);\r
}\r
\r
char * GetBitRateStr(uint32_t id){\r
- static char buf[20];\r
+ static char buf[25];\r
+\r
char *retStr = buf;\r
switch (id){\r
case 0: \r
snprintf(retStr,sizeof(buf),"%d - FSK 2a RF/10 RF/8",id);\r
break;\r
case 8:\r
- snprintf(retStr,sizeof(buf),"%d - Manschester",id);\r
+ snprintf(retStr,sizeof(buf),"%d - Manchester",id);\r
break;\r
case 16:\r
snprintf(retStr,sizeof(buf),"%d - Biphase",id);\r
static char buf[10];\r
char *retStr = buf;\r
\r
- if (cid == 1) sprintf(retStr,"ATA5577M1");\r
- if (cid == 2) sprintf(retStr,"ATA5577M2"); \r
+ if (cid == 1) snprintf(retStr, sizeof(buf),"ATA5577M1");\r
+ if (cid == 2) snprintf(retStr, sizeof(buf),"ATA5577M2"); \r
return buf;\r
}\r
\r