typedef struct le_gnss_Sample* le_gnss_SampleRef_t;
may i know the structure declaration. It is help full to use gnss/Position api in external IRNSS module
Hello !
I don’t know if this is what you’re looking for, but the Position Sample struct is defined in le_gnss.c as:
typedef struct le_gnss_PositionSample
{
le_gnss_FixState_t fixState; ///< Position Fix state
bool latitudeValid; ///< if true, latitude is set
int32_t latitude; ///< altitude
bool longitudeValid; ///< if true, longitude is set
int32_t longitude; ///< longitude
bool hAccuracyValid; ///< if true, horizontal accuracy is set
int32_t hAccuracy; ///< horizontal accuracy
bool altitudeValid; ///< if true, altitude is set
int32_t altitude; ///< altitude
bool altitudeOnWgs84Valid; ///< if true, altitude with respect to the WGS-84 is
///< set
int32_t altitudeOnWgs84; ///< altitude with respect to the WGS-84 ellipsoid
bool vAccuracyValid; ///< if true, vertical accuracy is set
int32_t vAccuracy; ///< vertical accuracy
bool hSpeedValid; ///< if true, horizontal speed is set
uint32_t hSpeed; ///< horizontal speed
bool hSpeedAccuracyValid; ///< if true, horizontal speed accuracy is set
int32_t hSpeedAccuracy; ///< horizontal speed accuracy
bool vSpeedValid; ///< if true, vertical speed is set
int32_t vSpeed; ///< vertical speed
bool vSpeedAccuracyValid; ///< if true, vertical speed accuracy is set
int32_t vSpeedAccuracy; ///< vertical speed accuracy
bool directionValid; ///< if true, direction is set
uint32_t direction; ///< direction
bool directionAccuracyValid; ///< if true, direction accuracy is set
uint32_t directionAccuracy; ///< direction accuracy
bool dateValid; ///< if true, date is set
uint16_t year; ///< UTC Year A.D. [e.g. 2014].
uint16_t month; ///< UTC Month into the year [range 1...12].
uint16_t day; ///< UTC Days into the month [range 1...31].
bool timeValid; ///< if true, time is set
uint16_t hours; ///< UTC Hours into the day [range 0..23].
uint16_t minutes; ///< UTC Minutes into the hour [range 0..59].
uint16_t seconds; ///< UTC Seconds into the minute [range 0..59].
uint16_t milliseconds; ///< UTC Milliseconds into the second [range 0..999].
uint64_t epochTime; ///< Epoch time in milliseconds since Jan. 1, 1970
bool gpsTimeValid; ///< if true, GPS time is set
uint32_t gpsWeek; ///< GPS week number from midnight, Jan. 6, 1980.
uint32_t gpsTimeOfWeek; ///< Amount of time in milliseconds into the GPS week.
bool timeAccuracyValid; ///< if true, timeAccuracy is set
uint32_t timeAccuracy; ///< Estimated Accuracy for time in nenoseconds
bool leapSecondsValid; ///< if true, leapSeconds is set
uint8_t leapSeconds; ///< UTC leap seconds in advance in seconds
bool positionLatencyValid; ///< if true, positionLatency is set
uint32_t positionLatency; ///< Position measurement latency in milliseconds
bool hdopValid; ///< if true, horizontal dilution is set
uint32_t hdop; ///< The horizontal dilution of precision (DOP)
bool vdopValid; ///< if true, vertical dilution is set
uint32_t vdop; ///< The vertical dilution of precision (DOP)
bool pdopValid; ///< if true, position dilution is set
uint32_t pdop; ///< The position dilution of precision (DOP)
bool gdopValid; ///< if true, geometric dilution is set
uint32_t gdop; ///< The geometric dilution of precision (DOP)
bool tdopValid; ///< if true, time dilution is set
uint32_t tdop; ///< The time dilution of precision (DOP)
bool magneticDeviationValid; ///< if true, magnetic deviation is set
int32_t magneticDeviation; ///< The magnetic deviation
// Satellite Vehicles information
bool satsInViewCountValid; ///< if true, satsInViewCount is set
uint8_t satsInViewCount; ///< Satellites in View count.
bool satsTrackingCountValid; ///< if true, satsTrackingCount is set
uint8_t satsTrackingCount; ///< Tracking satellites in View count.
bool satsUsedCountValid; ///< if true, satsUsedCount is set
uint8_t satsUsedCount; ///< Satellites in View used for Navigation.
bool satInfoValid; ///< if true, satInfo is set
le_gnss_SvInfo_t satInfo[LE_GNSS_SV_INFO_MAX_LEN];
bool satMeasValid; ///< if true, satMeas is set
le_gnss_SvMeas_t satMeas[LE_GNSS_SV_INFO_MAX_LEN];
///< Satellite Vehicle measurement information.
le_dls_Link_t link; ///< Object node link
}
le_gnss_PositionSample_t;
You can find this file here in the Legato source code.
Hope this helps !
Thanks @paulmeis
My intention. after reading the External GNSS module nmea string by using UART1.
nmea string has to send to gnss position api functions, to getting gnss samples.
if you have any other idea , please share me the information and I have one doubt,
is this possible to change the
#define LE_GNSS_NMEA_NODE_PATH “/dev/nmea”
to
#define LE_GNSS_NMEA_NODE_PATH “/dev/ttyHS0”
Hi @dhanarajbp1
I’m not sure to understand exactly what you are trying to do.
Correct me if i’m wrong, but I understood you want to get gnss samples using an application (with le_gnss or le_pos api I guess). Then you want to send the samples over UART (for example to your computer ?).
To send info over UART I would use the console port of the board (but this might not be the best way to do this). To do this you can write into /dev/console.
First you have to redirect Legato logs to /dev/console by modifying /etc/init.d/start_legato.sh using this command:
$ echo "logread -f > /dev/console &" >> /etc/init.d/startlegato.sh
Then you just have to log your gnss samples from your app with LE_INFO, and you should see them printed when you read the console output of your board.