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| author | Jason Reiss <jreiss@multitech.com> | 2022-10-22 13:55:00 -0500 |
|---|---|---|
| committer | Jason Reiss <jreiss@multitech.com> | 2022-10-22 13:55:00 -0500 |
| commit | 898c8cf70358161f659079bd573111ca3a82e810 (patch) | |
| tree | 6f43581753d670cd3f306fcdbdbb0dc2f2a9d165 | |
| parent | c26e279fab18bfe5694a80f330084a5d0ec54ad6 (diff) | |
| download | lora_gateway_mtac_full-898c8cf70358161f659079bd573111ca3a82e810.tar.gz lora_gateway_mtac_full-898c8cf70358161f659079bd573111ca3a82e810.tar.bz2 lora_gateway_mtac_full-898c8cf70358161f659079bd573111ca3a82e810.zip | |
gps: ignore invalid messages, do not update time if no gps fix5.0.17
| -rw-r--r-- | libloragw/src/loragw_gps.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libloragw/src/loragw_gps.c b/libloragw/src/loragw_gps.c index 736626d..8395108 100644 --- a/libloragw/src/loragw_gps.c +++ b/libloragw/src/loragw_gps.c @@ -383,7 +383,7 @@ enum gps_msg lgw_parse_ubx(const char *serial_buff, size_t buff_size, size_t *ms if ((serial_buff[2] == 0x01) && (serial_buff[3] == 0x20)) { /* Check validity of information */ valid = serial_buff[17] & 0x3; /* towValid, weekValid */ - if (valid) { + if (valid && gps_pos_ok) { /* Parse buffer to extract GPS time */ /* Warning: payload byte ordering is Little Endian */ gps_iTOW = (uint8_t)serial_buff[6]; @@ -416,6 +416,7 @@ enum gps_msg lgw_parse_ubx(const char *serial_buff, size_t buff_size, size_t *ms #endif } else { /* valid */ gps_time_ok = false; + return IGNORED; } return UBX_NAV_TIMEGPS; @@ -502,12 +503,15 @@ enum gps_msg lgw_parse_nmea(const char *serial_buff, int buff_size) { DEBUG_MSG("Note: Valid RMC sentence, GPS locked, date: 20%02d-%02d-%02dT%02d:%02d:%06.3fZ\n", gps_yea, gps_mon, gps_day, gps_hou, gps_min, gps_fra + (float)gps_sec); } else { gps_time_ok = false; + gps_pos_ok = false DEBUG_MSG("Note: Valid RMC sentence, no satellite fix, estimated date: 20%02d-%02d-%02dT%02d:%02d:%06.3fZ\n", gps_yea, gps_mon, gps_day, gps_hou, gps_min, gps_fra + (float)gps_sec); + return IGNORED; } } else { /* could not get a valid hour AND date */ gps_time_ok = false; DEBUG_MSG("Note: Valid RMC sentence, mode %c, no date\n", gps_mod); + return IGNORED; } return NMEA_RMC; } else if (match_label(serial_buff, "$G?GGA", 6, '?')) { |