DigitalInfinity/ESP32-PaxCounter
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get_gpstime optimization

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This commit is contained in:
Verkehrsrot 2019-03-03 17:06:36 +01:00
parent aeccb59f55
commit 6a6e584234
2 changed files with 14 additions and 21 deletions
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1
include/gpsread.h
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@ -16,7 +16,6 @@ extern TinyGPSPlus gps; // Make TinyGPS++ instance globally availabe
extern gpsStatus_t extern gpsStatus_t
gps_status; // Make struct for storing gps data globally available gps_status; // Make struct for storing gps data globally available
extern TaskHandle_t GpsTask; extern TaskHandle_t GpsTask;
extern TickType_t const gpsDelay_ticks; // time to NMEA arrival
int gps_init(void); int gps_init(void);
void gps_read(void); void gps_read(void);

22
src/gpsread.cpp
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@ -11,10 +11,6 @@ TaskHandle_t GpsTask;
#ifdef GPS_SERIAL #ifdef GPS_SERIAL
HardwareSerial GPS_Serial(1); // use UART #1 HardwareSerial GPS_Serial(1); // use UART #1
TickType_t const gpsDelay_ticks = pdMS_TO_TICKS(1000 - NMEA_BUFFERTIME) -
tx_Ticks(NMEA_FRAME_SIZE, GPS_SERIAL);
#else
TickType_t const gpsDelay_ticks = pdMS_TO_TICKS(1000 - NMEA_BUFFERTIME);
#endif #endif
// initialize and configure GPS // initialize and configure GPS
@ -27,13 +23,6 @@ int gps_init(void) {
return 0; return 0;
} }
// set timeout for reading recent time from GPS
#ifdef GPS_SERIAL // serial GPS
#else // I2C GPS
#endif
#if defined GPS_SERIAL #if defined GPS_SERIAL
GPS_Serial.begin(GPS_SERIAL); GPS_Serial.begin(GPS_SERIAL);
ESP_LOGI(TAG, "Using serial GPS"); ESP_LOGI(TAG, "Using serial GPS");
@ -88,20 +77,25 @@ void gps_read() {
time_t get_gpstime(void) { time_t get_gpstime(void) {
// set time to wait for arrive next recent NMEA time record // set time to wait for arrive next recent NMEA time record
static const uint32_t gpsDelay_ms = gpsDelay_ticks / portTICK_PERIOD_MS; static const uint32_t gpsDelay_ms = 500;
time_t t = 0; time_t t = 0;
for (uint8_t i = 0; i <= 9; i++) { // trying to get a recent time.age
if ((gps.time.age() < gpsDelay_ms) && (gps.time.isValid()) && if ((gps.time.age() < gpsDelay_ms) && (gps.time.isValid()) &&
(gps.date.isValid())) { (gps.date.isValid())) {
ESP_LOGD(TAG, "GPS time age: %dms, is valid: %s, second: %d", ESP_LOGD(TAG, "GPS time age: %dms, is valid: %s, second: %d, trials: %d",
gps.time.age(), gps.time.age(),
(gps.time.isValid() && gps.date.isValid()) ? "yes" : "no", (gps.time.isValid() && gps.date.isValid()) ? "yes" : "no",
gps.time.second()); gps.time.second(), i);
t = tmConvert(gps.date.year(), gps.date.month(), gps.date.day(), t = tmConvert(gps.date.year(), gps.date.month(), gps.date.day(),
gps.time.hour(), gps.time.minute(), gps.time.second()); gps.time.hour(), gps.time.minute(), gps.time.second());
break; // exit for
}
} }
return timeIsValid(t); return timeIsValid(t);
} // get_gpstime() } // get_gpstime()