diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/ao_aprs.c | 55 | ||||
| -rw-r--r-- | src/test/ao_aprs_test.c | 2 |
2 files changed, 55 insertions, 2 deletions
diff --git a/src/drivers/ao_aprs.c b/src/drivers/ao_aprs.c index 0a41d5fd..cea802bb 100644 --- a/src/drivers/ao_aprs.c +++ b/src/drivers/ao_aprs.c @@ -1371,6 +1371,58 @@ void tncGPRMCPacket() } /** + * Generate the plain text position packet. Data is written through the tncTxByte + * callback function + */ +void tncPositionPacket(void) +{ + int32_t latitude = 45.4694766 * 10000000; + int32_t longitude = -122.7376250 * 10000000; + uint32_t altitude = 10000; + uint16_t lat_deg; + uint16_t lon_deg; + uint16_t lat_min; + uint16_t lat_frac; + uint16_t lon_min; + uint16_t lon_frac; + + char lat_sign = 'N', lon_sign = 'E'; + +// tncPrintf (">ANSR "); + if (latitude < 0) { + lat_sign = 'S'; + latitude = -latitude; + } + + if (longitude < 0) { + lon_sign = 'W'; + longitude = -longitude; + } + + lat_deg = latitude / 10000000; + latitude -= lat_deg * 10000000; + latitude *= 60; + lat_min = latitude / 10000000; + latitude -= lat_min * 10000000; + lat_frac = (latitude + 50000) / 100000; + + lon_deg = longitude / 10000000; + longitude -= lon_deg * 10000000; + longitude *= 60; + lon_min = longitude / 10000000; + longitude -= lon_min * 10000000; + lon_frac = (longitude + 50000) / 100000; + + tncPrintf ("=%02u%02u.%02u%c\\%03u%02u.%02u%cO", + lat_deg, lat_min, lat_frac, lat_sign, + lon_deg, lon_min, lon_frac, lon_sign); + + tncPrintf (" /A=%06u", altitude * 100 / 3048); +} + + + +/** * Generate the plain text status packet. Data is written through the tncTxByte * callback function. */ @@ -1466,7 +1518,8 @@ void tncTxPacket(TNC_DATA_MODE dataMode) break; case TNC_GGA: - tncGPGGAPacket(); + tncPositionPacket(); +// tncGPGGAPacket(); // Select the next packet we will generate. tncPacketType = TNC_RMC; diff --git a/src/test/ao_aprs_test.c b/src/test/ao_aprs_test.c index 1c0b252b..cec4d617 100644 --- a/src/test/ao_aprs_test.c +++ b/src/test/ao_aprs_test.c @@ -79,7 +79,7 @@ int main(int argc, char **argv) utcSeconds = 55; // This is the main loop that process GPS data and waits for the once per second timer tick. - for (i = 0; i < 5; i++) + for (i = 0; i < 3; i++) { audio_gap(10); // Read the GPS engine serial port FIFO and process the GPS data. |