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Reset GPS after serial speed change, and look for magic string to identify chip

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This commit is contained in:
Jonathan Bennett 2025-10-10 22:55:42 -05:00
parent de9401bb5c
commit d13a3c1ad5
1 changed files with 14 additions and 2 deletions
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16
src/gps/GPS.cpp
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@ -1286,6 +1286,20 @@ GnssModel_t GPS::probe(int serialSpeed)
memset(&ublox_info, 0, sizeof(ublox_info));
delay(100);
#ifdef PIN_GPS_RESET
digitalWrite(PIN_GPS_RESET, GPS_RESET_MODE); // assert for 10ms
delay(10);
digitalWrite(PIN_GPS_RESET, !GPS_RESET_MODE);
// attempt to detect the chip based on boot messages
std::vector<ChipInfo> airoha = {{"AG3335", "$PAIR021,AG3335", GNSS_MODEL_AG3335},
{"AG3352", "$PAIR021,AG3352", GNSS_MODEL_AG3352},
{"RYS3520", "$PAIR021,REYAX_RYS3520_V2", GNSS_MODEL_AG3352}};
GnssModel_t detectedDriver = getProbeResponse(500, airoha, serialSpeed);
if (detectedDriver != GNSS_MODEL_UNKNOWN) {
return detectedDriver;
}
#endif
// Close all NMEA sentences, valid for L76K, ATGM336H (and likely other AT6558 devices)
_serial_gps->write("$PCAS03,0,0,0,0,0,0,0,0,0,0,,,0,0*02\r\n");
delay(20);
@ -1586,8 +1600,6 @@ GPS *GPS::createGps()
#ifdef PIN_GPS_RESET
pinMode(PIN_GPS_RESET, OUTPUT);
digitalWrite(PIN_GPS_RESET, GPS_RESET_MODE); // assert for 10ms
delay(10);
digitalWrite(PIN_GPS_RESET, !GPS_RESET_MODE);
#endif