2025-05-07 3:43 PM
2025-05-07 4:29 PM - edited 2025-05-07 4:46 PM
Off the bat, you have no Lon/Lat values and also show V when it should be A. Time shows it's 2017 so it hasn't been updated. Until you get a lock onto some satellites, you're not going to get much valid data.
$GPRMC,235942.990,V,0000.00000,N,00000.00000,E,,,020917,,,N*70
Edit: I plugged in the time into a wrong conversion which indicated 2017, but that is not the case.
2025-05-08 2:55 PM
Thanks for your response, @Karl Yamashita
We connected an external GNSS simulator (Spirent GSS6300M) and initially received output that matched the simulator’s configuration.
However, after that initial success, the data no longer updates regardless of the configuration changes we make. Even when we disconnect the antenna from the EVK (which was connected to the simulator), the LAT/LONG data remains the same. Rebooting or resetting the device also has no effect.
Could this be a bug, or is there a known issue? We would appreciate your assistance in resolving this.
Here's the output.
/ # microcom -s 9600 /dev/ttyHS5
$PSTMVER,GNSSLIB_8.4.18.25_CP_ARM*07
$GPTXT,DEFAULT LIV3FL CONFIGURATION*12
$PSTMVER,OS20LIB_4.4.0_ARM*40
$PSTMVER,GPSAPP_2.11.0.1_CP_LIV3FL_ARM*48
$PSTMVER,BINIMG_4.6.15.1_CP_LIV3FL_ARM*4F
$PSTMVER,SWCFG_8306532d*33
$PSTMVER,STAGPSLIB_6.0.0_ARM*5A
$PSTMVER,STA8090_822bc043*61
$GPTXT,(C)2000-2018 ST Microelectronics*29
$GPTXT,DEFAULT LIV3FL CONFIGURATION*12
$PSTMSWCONFIG,1,0,12,000205f105070a0a0e0d0c0b0a090608070203630e110c04180c0155030110500f00000f071402050a40ffffffffffffffffffffffffffffffffffffffffffff*1E
$PSTMSWCONFIG,1,1,12,ffffffffffffffffffffffffffffffffffffffffffffffffffff010101000001094005ffffffffff5c1663095600980000000000000000000000000000000000*40
$PSTMSWCONFIG,1,2,12,ffffffff00010000ffffffff000000000000000000000000ffffffff000100000019000000000000fffffffffffffffffffffffffffffffff090c02b05282000*4D
$PSTMSWCONFIG,1,3,12,01323200050358020a0a0000fe03000010f083340d040104000002000000000000000000560098000000020000000000000000000000000000000000ac07730d*44
$PSTMSWCONFIG,1,4,12,120000009a106464ae6184002f0001000000000000000000000000000a00000007000000ffffffff050000000100000015000000b004780503000000f0c3f7ff*4C
$PSTMSWCONFIG,1,5,12,00000000ffffffff000000000c0a00020fb4a005f5a30000010a1900330a0a1400510000810e003300001810000008000e01000000000000020f000000000000*43
$PSTMSWCONFIG,1,6,12,0000e803ffffffff0610000080ba8c014810c703ffffffff9abed2e6edf2fafb0000020205060101ff00ff00ff00ff00ff00ff00ff00ff0000000000ffffffff*4D
$PSTMSWCONFIG,1,7,12,0000000000000000000000000000e03f0000000000000000000000000000f03fd3872ea86f754440938c9c853d8d2c403db83b6bb71b56404b0484b86d3da53e*40
$PSTMSWCONFIG,1,8,12,0cb8df888b2f9c3e2b69a4292b1b503e0cb8df888b2f9c3e4b0484b86d3da53e000000000000000000000000000000005feffe78af8e44406c21c84109c32b40*4B
$PSTMSWCONFIG,1,9,12,00000000000024401d8f19a88c8f4440598b4f0130be2b4000000000000024407ac2120f289f44402315c616828c2b400000000000002440ace28dcc239f4440*11
$PSTMSWCONFIG,1,10,12,95826e2f698c2b4000000000000024400f0c0c120f0c0c120f0c0c120f0c0c1244454641554c54204c495633464c20434f4e46494755524154494f4e00000000*7D
$PSTMSWCONFIG,1,11,12,00000000000000000000000000000000000000000000000000000000000000000000000000000000*26
$GPRMC,000237.100,V,3859.99441,N,11613.98111,E,,,120232,,,N*73
$GPGGA,000237.100,3859.99441,N,11613.98111,E,0,00,99.0,-35.18,M,0.0,M,,*7A
$GPVTG,,T,,M,,N,,K,N*2C
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GPGLL,3859.99441,N,11613.98111,E,000237.100,V,N*44
$PSTMCFG,LMS,1,0,0,50.0,50.0,05,03,60.0,0.000000,0.000000,-2.671600*12
$PSTMCPU,100.00,-1,98*72
$GPRMC,000238.000,V,3859.99441,N,11613.98111,E,,,120232,,,N*7D
$GPGGA,000238.000,3859.99441,N,11613.98111,E,0,00,99.0,-35.18,M,0.0,M,,*74
$GPVTG,,T,,M,,N,,K,N*2C
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GPGLL,3859.99441,N,11613.98111,E,000238.000,V,N*4A
$PSTMCPU,100.00,-1,98*72
$GPRMC,000239.000,V,3859.99441,N,11613.98111,E,,,120232,,,N*7C
$GPGGA,000239.000,3859.99441,N,11613.98111,E,0,00,99.0,-35.18,M,0.0,M,,*75
$GPVTG,,T,,M,,N,,K,N*2C
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GPGLL,3859.99441,N,11613.98111,E,000239.000,V,N*4B
$PSTMCPU,100.00,-1,98*72
$GPRMC,000240.000,V,3859.99441,N,11613.98111,E,,,120232,,,N*72
$GPGGA,000240.000,3859.99441,N,11613.98111,E,0,00,99.0,-35.18,M,0.0,M,,*7B
$GPVTG,,T,,M,,N,,K,N*2C
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GPGLL,3859.99441,N,11613.98111,E,000240.000,V,N*45
$PSTMCPU,100.00,-1,98*72
$GPRMC,000241.000,V,3859.99441,N,11613.98111,E,,,120232,,,N*73
$GPGGA,000241.000,3859.99441,N,11613.98111,E,0,00,99.0,-35.18,M,0.0,M,,*7A
$GPVTG,,T,,M,,N,,K,N*2C
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GNGSA,A,1,,,,,,,,,,,,,99.0,99.0,99.0*1E
$GPGLL,3859.99441,N,11613.98111,E,000241.000,V,N*44
$PSTMCPU,97.54,-1,98*4C
2025-05-08 3:15 PM
Who is Lantronix's contact person at ST Micro? You should probably determine that first, perhaps via purchasing.
Determine who is the FAE responsible for your account.
Open an online support request https://ols.st.com/s/
GPS/GNSS devices don't like going back in time, or non-linear progression of time. If using simulators always COLD start a receiver in a way that clears all RTC, EEPROM or NVRAM data