diff options
Diffstat (limited to 'src/drivers/hott_telemetry/messages.h')
| -rw-r--r-- | src/drivers/hott_telemetry/messages.h | 122 |
1 files changed, 97 insertions, 25 deletions
diff --git a/src/drivers/hott_telemetry/messages.h b/src/drivers/hott_telemetry/messages.h index dd38075fa..e6d5cc723 100644 --- a/src/drivers/hott_telemetry/messages.h +++ b/src/drivers/hott_telemetry/messages.h @@ -44,11 +44,6 @@ #include <stdlib.h> -/* The buffer size used to store messages. This must be at least as big as the number of - * fields in the largest message struct. - */ -#define MESSAGE_BUFFER_SIZE 50 - /* The HoTT receiver demands a minimum 5ms period of silence after delivering its request. * Note that the value specified here is lower than 5000 (5ms) as time is lost constucting * the message after the read which takes some milliseconds. @@ -66,18 +61,18 @@ #define TEMP_ZERO_CELSIUS 0x14 /* Electric Air Module (EAM) constants. */ -#define ELECTRIC_AIR_MODULE 0x8e -#define EAM_SENSOR_ID 0xe0 +#define EAM_SENSOR_ID 0x8e +#define EAM_SENSOR_TEXT_ID 0xe0 /* The Electric Air Module message. */ struct eam_module_msg { - uint8_t start; /**< Start byte */ - uint8_t eam_sensor_id; /**< EAM sensor ID */ + uint8_t start; /**< Start byte */ + uint8_t eam_sensor_id; /**< EAM sensor */ uint8_t warning; - uint8_t sensor_id; /**< Sensor ID, why different? */ + uint8_t sensor_id; /**< Sensor ID, why different? */ uint8_t alarm_inverse1; uint8_t alarm_inverse2; - uint8_t cell1_L; /**< Lipo cell voltages. Not supported. */ + uint8_t cell1_L; /**< Lipo cell voltages. Not supported. */ uint8_t cell2_L; uint8_t cell3_L; uint8_t cell4_L; @@ -95,30 +90,107 @@ struct eam_module_msg { uint8_t batt1_voltage_H; uint8_t batt2_voltage_L; /**< Battery 2 voltage, lower 8-bits in steps of 0.02V */ uint8_t batt2_voltage_H; - uint8_t temperature1; /**< Temperature sensor 1. 20 = 0 degrees */ + uint8_t temperature1; /**< Temperature sensor 1. 20 = 0 degrees */ uint8_t temperature2; - uint8_t altitude_L; /**< Attitude (meters) lower 8-bits. 500 = 0 meters */ + uint8_t altitude_L; /**< Attitude (meters) lower 8-bits. 500 = 0 meters */ uint8_t altitude_H; - uint8_t current_L; /**< Current (mAh) lower 8-bits in steps of 0.1V */ + uint8_t current_L; /**< Current (mAh) lower 8-bits in steps of 0.1V */ uint8_t current_H; - uint8_t main_voltage_L; /**< Main power voltage lower 8-bits in steps of 0.1V */ + uint8_t main_voltage_L; /**< Main power voltage lower 8-bits in steps of 0.1V */ uint8_t main_voltage_H; - uint8_t battery_capacity_L; /**< Used battery capacity in steps of 10mAh */ + uint8_t battery_capacity_L; /**< Used battery capacity in steps of 10mAh */ uint8_t battery_capacity_H; - uint8_t climbrate_L; /**< Climb rate in 0.01m/s. 0m/s = 30000 */ + uint8_t climbrate_L; /**< Climb rate in 0.01m/s. 0m/s = 30000 */ uint8_t climbrate_H; - uint8_t climbrate_3s; /**< Climb rate in m/3sec. 0m/3sec = 120 */ - uint8_t rpm_L; /**< RPM Lower 8-bits In steps of 10 U/min */ + uint8_t climbrate_3s; /**< Climb rate in m/3sec. 0m/3sec = 120 */ + uint8_t rpm_L; /**< RPM Lower 8-bits In steps of 10 U/min */ uint8_t rpm_H; - uint8_t electric_min; /**< Flight time in minutes. */ - uint8_t electric_sec; /**< Flight time in seconds. */ - uint8_t speed_L; /**< Airspeed in km/h in steps of 1 km/h */ + uint8_t electric_min; /**< Flight time in minutes. */ + uint8_t electric_sec; /**< Flight time in seconds. */ + uint8_t speed_L; /**< Airspeed in km/h in steps of 1 km/h */ uint8_t speed_H; - uint8_t stop; /**< Stop byte */ - uint8_t checksum; /**< Lower 8-bits of all bytes summed. */ + uint8_t stop; /**< Stop byte */ + uint8_t checksum; /**< Lower 8-bits of all bytes summed. */ }; +/** + * The maximum buffer size required to store a HoTT message. + */ +#define MESSAGE_BUFFER_SIZE sizeof(union { \ + struct eam_module_msg eam; \ +}) + +/* GPS sensor constants. */ +#define GPS_SENSOR_ID 0x8A +#define GPS_SENSOR_TEXT_ID 0xA0 + +/** + * The GPS sensor message + * Struct based on: https://code.google.com/p/diy-hott-gps/downloads + */ +struct gps_module_msg { + uint8_t start; /**< Start byte */ + uint8_t sensor_id; /**< GPS sensor ID*/ + uint8_t warning; /**< Byte 3: 0…= warning beeps */ + uint8_t sensor_text_id; /**< GPS Sensor text mode ID */ + uint8_t alarm_inverse1; /**< Byte 5: 01 inverse status */ + uint8_t alarm_inverse2; /**< Byte 6: 00 inverse status status 1 = no GPS Signal */ + uint8_t flight_direction; /**< Byte 7: 119 = Flightdir./dir. 1 = 2°; 0° (North), 9 0° (East), 180° (South), 270° (West) */ + uint8_t gps_speed_L; /**< Byte 8: 8 = /GPS speed low byte 8km/h */ + uint8_t gps_speed_H; /**< Byte 9: 0 = /GPS speed high byte */ + + uint8_t latitude_ns; /**< Byte 10: 000 = N = 48°39’988 */ + uint8_t latitude_min_L; /**< Byte 11: 231 0xE7 = 0x12E7 = 4839 */ + uint8_t latitude_min_H; /**< Byte 12: 018 18 = 0x12 */ + uint8_t latitude_sec_L; /**< Byte 13: 171 220 = 0xDC = 0x03DC =0988 */ + uint8_t latitude_sec_H; /**< Byte 14: 016 3 = 0x03 */ + + uint8_t longitude_ew; /**< Byte 15: 000 = E= 9° 25’9360 */ + uint8_t longitude_min_L; /**< Byte 16: 150 157 = 0x9D = 0x039D = 0925 */ + uint8_t longitude_min_H; /**< Byte 17: 003 3 = 0x03 */ + uint8_t longitude_sec_L; /**< Byte 18: 056 144 = 0x90 0x2490 = 9360*/ + uint8_t longitude_sec_H; /**< Byte 19: 004 36 = 0x24 */ + + uint8_t distance_L; /**< Byte 20: 027 123 = /distance low byte 6 = 6 m */ + uint8_t distance_H; /**< Byte 21: 036 35 = /distance high byte */ + uint8_t altitude_L; /**< Byte 22: 243 244 = /Altitude low byte 500 = 0m */ + uint8_t altitude_H; /**< Byte 23: 001 1 = /Altitude high byte */ + uint8_t resolution_L; /**< Byte 24: 48 = Low Byte m/s resolution 0.01m 48 = 30000 = 0.00m/s (1=0.01m/s) */ + uint8_t resolution_H; /**< Byte 25: 117 = High Byte m/s resolution 0.01m */ + uint8_t unknown1; /**< Byte 26: 120 = 0m/3s */ + uint8_t gps_num_sat; /**< Byte 27: GPS.Satellites (number of satelites) (1 byte) */ + uint8_t gps_fix_char; /**< Byte 28: GPS.FixChar. (GPS fix character. display, if DGPS, 2D oder 3D) (1 byte) */ + uint8_t home_direction; /**< Byte 29: HomeDirection (direction from starting point to Model position) (1 byte) */ + uint8_t angle_x_direction; /**< Byte 30: angle x-direction (1 byte) */ + uint8_t angle_y_direction; /**< Byte 31: angle y-direction (1 byte) */ + uint8_t angle_z_direction; /**< Byte 32: angle z-direction (1 byte) */ + uint8_t gyro_x_L; /**< Byte 33: gyro x low byte (2 bytes) */ + uint8_t gyro_x_H; /**< Byte 34: gyro x high byte */ + uint8_t gyro_y_L; /**< Byte 35: gyro y low byte (2 bytes) */ + uint8_t gyro_y_H; /**< Byte 36: gyro y high byte */ + uint8_t gyro_z_L; /**< Byte 37: gyro z low byte (2 bytes) */ + uint8_t gyro_z_H; /**< Byte 38: gyro z high byte */ + uint8_t vibration; /**< Byte 39: vibration (1 bytes) */ + uint8_t ascii4; /**< Byte 40: 00 ASCII Free Character [4] */ + uint8_t ascii5; /**< Byte 41: 00 ASCII Free Character [5] */ + uint8_t gps_fix; /**< Byte 42: 00 ASCII Free Character [6], we use it for GPS FIX */ + uint8_t version; /**< Byte 43: 00 version number */ + uint8_t stop; /**< Byte 44: 0x7D Ende byte */ + uint8_t checksum; /**< Byte 45: Parity Byte */ +}; + +/** + * The maximum buffer size required to store a HoTT message. + */ +#define GPS_MESSAGE_BUFFER_SIZE sizeof(union { \ + struct gps_module_msg gps; \ +}) + void messages_init(void); -void build_eam_response(uint8_t *buffer, int *size); +void build_eam_response(uint8_t *buffer, size_t *size); +void build_gps_response(uint8_t *buffer, size_t *size); +float _get_distance_to_next_waypoint(double lat_now, double lon_now, double lat_next, double lon_next); +void convert_to_degrees_minutes_seconds(double lat, int *deg, int *min, int *sec); + #endif /* MESSAGES_H_ */ |