Sometimes, if the module has been powered off for a long time, the following block will be sent over NMEA at 9600 baud by the M8T. Very soon after the 8051 will send a series of reconfiguration commands.
$GNTXT,01,01,02,u-blox AG - www.u-blox.com*4E $GNTXT,01,01,02,HW UBX-M8030 00080000*60 $GNTXT,01,01,02,EXT CORE 3.01 (111141)*39 $GNTXT,01,01,02,ROM BASE 2.01 (75331)*19 $GNTXT,01,01,02,FWVER=TIM 1.10*50 $GNTXT,01,01,02,PROTVER=22.00*18 $GNTXT,01,01,02,MOD=LEA-M8T-0*71 $GNTXT,01,01,02,FIS=0xEF4015 (100111)*58 $GNTXT,01,01,02,GPS;GLO;GAL;BDS*77 $GNTXT,01,01,02,SBAS;IMES;QZSS*49 $GNTXT,01,01,02,GNSS OTP=GPS;GLO*37 $GNTXT,01,01,02,LLC=FFFFFFFF-FFFFFFED-FFFFFFFF-FFFFFFAE-FFFFFDE9*56 $GNTXT,01,01,02,ANTSUPERV=AC SD PDoS SR*3E $GNTXT,01,01,02,ANTSTATUS=DONTKNOW*2D $GNTXT,01,01,02,PF=3EA*4F
UBX-MON-VER: Poll request UBX-MON-VER: Poll request UBX-CFG-GNSS: Poll request UBX-CFG-PMS: version 0 powerSetupValue 0 period 0 onTime 0x0 reserved1 0 0 UBX-CFG-PMS: version 0 powerSetupValue 0 period 0 onTime 0x0 reserved1 0 0 UBX-CFG-PMS: Poll request UBX-CFG-TMODE2: Poll request UBX-CFG-NAV5: mask 0xffff dynModel 2 fixmode 2 fixedAlt 0 FixedAltVar 10000 minElev 5 drLimit 0 pDop 250 tDop 250 pAcc 100 tAcc 350 staticHoldThresh 0 dgpsTimeOut 60 cnoThreshNumSVs 0 cnoThresh 0 res 0 staticHoldMaxDist 0 utcStandard 0 reserved x0 0 UBX-CFG-NAVX5: version 2 mask1 xffff mask2 x23f reserved1 515 minSVs 1 maxSVs 32 minCNO 9 reserved2 0 iniFix3D 0 reserved3 1 ackAiding 0 wknRollover 1867 sigAttenCompMode 0 reserved456 1 0 257 usePPP 0 aopCfg 0 reserved7 25600 aopOrbMaxErr 100 reserved89 256 0 0 useAdr 0 UBX-CFG-MSG: Class x01 (NAV) ID x30 (SVINFO) Rates 0 0 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x35 (SAT) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x03 (STATUS) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x20 (TIMEGPS) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x01 (POSECEF) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x02 (POSLLH) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x26 (TIMELS) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x21 (TIMEUTC) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x01 (NAV) ID x04 (DOP) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x0d (TIM) ID x01 (TP) Rates 0 1 0 0 0 0 UBX-CFG-MSG: Class x0d (TIM) ID x04 (SVIN) Rates 0 1 0 0 0 0 UBX-CFG-RATE: measRate 1000 navRate 1 timeRef 1 (GPS) UBX-CFG-SBAS: mode x0 usage x0 maxSBAS 0 scanMode2 x0 scanMode1: x0 UBX-CFG-TMODE2: timeMode 2 reserved1 0 usage 0x0 ecefXOrLat 163983513 ecefYOrLon -422920651 ecefZOrAlt 446888859 fixedPosAcc 25253 svinMinDur 2000 svinAccLimit 5400 UBX-CFG-GNSS: msgVer 0 numTrkChHw 0 numTrkChUse 32 numConfigBlocks 7 gnssId 0 TrkCh 8 maxTrCh 16 reserved 0 Flags x00010001 GPS L1C/A enabled gnssId 1 TrkCh 1 maxTrCh 3 reserved 0 Flags x00010000 SBAS L1C/A gnssId 2 TrkCh 4 maxTrCh 8 reserved 0 Flags x00010000 Galileo E1 gnssId 3 TrkCh 8 maxTrCh 16 reserved 0 Flags x00010000 BeiDou B1I gnssId 4 TrkCh 0 maxTrCh 8 reserved 0 Flags x00010000 IMES L1 gnssId 5 TrkCh 0 maxTrCh 3 reserved 0 Flags x00010000 QZSS L1C/A gnssId 6 TrkCh 8 maxTrCh 14 reserved 0 Flags x00010001 GLONASS L1 enabled UBX-CFG-TP5: tpIdx 0 version 1 reserved1 0 antCableDelay 0 rfGroupDelay 0 freqPeriod 1000000 freqPeriodLock 1000000 pulseLenRatio 0 pulseLenRatioLock 100000 userConfigDelay 40 flags xf7 UBX-CFG-TP5: tpIdx 1 version 0 reserved1 0 antCableDelay 0 rfGroupDelay 0 freqPeriod 1000000 freqPeriodLock 0 pulseLenRatio 380000 pulseLenRatioLock 0 userConfigDelay 0 flags x33 UBX-CFG-ANT: flags x0 pins x39f0 pinSwitch 16 pinSCD 15 pinOCD 14 reconfig 0
00000000: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 00000010: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 00000020: 0000 0000 0000 0000 0000 0000 0000 b562 ...............b 00000030: 0a04 0000 0e34 b562 0a04 0000 0e34 b562 .....4.b.....4.b 00000040: 063e 0000 44d2 b562 0686 0800 0000 0000 .>..D..b........ 00000050: 0000 0000 945a b562 0686 0800 0000 0000 .....Z.b........ 00000060: 0000 0000 945a b562 0686 0000 8caa b562 .....Z.b.......b 00000070: 063d 0000 43cf b562 0624 2400 ffff 0202 .=..C..b.$$..... 00000080: 0000 0000 1027 0000 0500 fa00 fa00 6400 .....'........d. 00000090: 5e01 003c 0000 0000 0000 0000 0000 0000 ^..<............ 000000a0: 7f5f b562 0623 2800 0200 ffff 3f02 0000 ._.b.#(.....?... 000000b0: 0302 0120 0900 0001 0000 4b07 0001 0000 ... ......K..... 000000c0: 0101 0000 0064 6400 0001 0000 0000 0000 .....dd......... 000000d0: e083 b562 0601 0800 0130 0000 0000 0000 ...b.....0...... 000000e0: 40fb b562 0601 0800 0135 0001 0000 0000 @..b.....5...... 000000f0: 4623 b562 0601 0800 0103 0001 0000 0000 F#.b............ 00000100: 14c5 b562 0601 0800 0120 0001 0000 0000 ...b..... ...... 00000110: 3190 b562 0601 0800 0101 0001 0000 0000 1..b............ 00000120: 12b7 b562 0601 0800 0102 0001 0000 0000 ...b............ 00000130: 13be b562 0601 0800 0126 0001 0000 0000 ...b.....&...... 00000140: 37ba b562 0601 0800 0121 0001 0000 0000 7..b.....!...... 00000150: 3297 b562 0601 0800 0104 0001 0000 0000 2..b............ 00000160: 15cc b562 0601 0800 0d01 0001 0000 0000 ...b............ 00000170: 1e17 b562 0601 0800 0d04 0001 0000 0000 ...b............ 00000180: 212c b562 0608 0600 e803 0100 0100 0139 !,.b...........9 00000190: b562 0616 0800 0000 0000 0000 0000 248a .b............$. 000001a0: b562 063d 1c00 0200 0000 9930 c609 35be .b.=.......0..5. 000001b0: cae6 9bfb a21a a562 0000 d007 0000 1815 .......b........ 000001c0: 0000 f999 b562 063e 3c00 0000 2007 0008 .....b.><... ... 000001d0: 1000 0100 0100 0101 0300 0000 0100 0204 ................ 000001e0: 0800 0000 0100 0308 1000 0000 0100 0400 ................ 000001f0: 0800 0000 0100 0500 0300 0000 0100 0608 ................ 00000200: 0e00 0100 0100 26a2 b562 0631 2000 0001 ......&..b.1 ... 00000210: 0000 0000 0000 4042 0f00 4042 0f00 0000 ......@B..@B.... 00000220: 0000 a086 0100 2800 0000 f700 0000 c07e ......(........~ 00000230: b562 0631 2000 0100 0000 0000 0000 4042 .b.1 .........@B 00000240: 0f00 0000 0000 60cc 0500 0000 0000 0000 ......`......... 00000250: 0000 3300 0000 4d29 b562 0613 0400 0000 ..3...M).b...... 00000260: f039 46e6 .9F.