Implementation of GNSS Driver. More...

#include "nmea_ubx.h"
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include "no_os_util.h"
#include "no_os_uart.h"
#include "no_os_gpio.h"
#include "no_os_irq.h"
#include "no_os_delay.h"
#include "no_os_alloc.h"
#include "no_os_print_log.h"
#include <stdlib.h>
#include <errno.h>

Include dependency graph for nmea_ubx.c:

Functions
void	gnss_calculate_checksum (uint8_t data, uint16_t length, uint8_t checksumA, uint8_t *checksumB)
	Calculate UBX checksum.

int	gnss_verify_checksum (uint8_t *data, uint16_t length, uint8_t checksumA, uint8_t checksumB)
	Verify UBX checksum.

int	gnss_init (struct gnss_dev **device, struct gnss_init_param init_param)
	Initialize the GNSS device and configure communication.

int	gnss_remove (struct gnss_dev *dev)
	Remove the GNSS device and release allocated resources.

int	gnss_hw_reset (struct gnss_dev *dev)
	Reset the GNSS device using hardware reset pin.

int	gnss_ubx_sw_reset (struct gnss_dev *dev)
	Reset the device using SW reset.

int	gnss_write (struct gnss_dev dev, uint8_t data, uint16_t size)
	Write data to the device.

int	gnss_read (struct gnss_dev dev, uint8_t data, uint16_t size)
	Read data from the device.

int	gnss_ubx_send_packet (struct gnss_dev dev, uint8_t cls, uint8_t id, uint8_t payload, uint16_t length)
	Send UBX binary protocol packet to the GNSS device.

int	gnss_ubx_receive_packet (struct gnss_dev dev, struct gnss_ubx_packet packet)
	UBX packet receive.

int	gnss_ubx_wait_for_ack (struct gnss_dev *dev, uint8_t cls, uint8_t id)
	Wait for ACK/NAK.

int	gnss_ubx_set_val_no_ack (struct gnss_dev *dev, uint32_t key_id, uint64_t value, uint8_t value_size, uint8_t layer)
	Set configuration value by key (no ACK version)

int	gnss_ubx_set_val (struct gnss_dev *dev, uint32_t key_id, uint64_t value, uint8_t value_size, uint8_t layer)
	Set configuration value by key.

int	gnss_ubx_get_val (struct gnss_dev dev, uint32_t key_id, uint64_t value, uint8_t value_size, uint8_t layer)
	Get configuration value by key.

int	gnss_ubx_clr_save_load_config (struct gnss_dev *dev, uint8_t mask)
	Clear save load configuration from flash/BBR.

int	gnss_ubx_set_input_protocol_uart1 (struct gnss_dev *dev, enum gnss_protocol protocol, uint8_t enable, uint8_t layer)
	Configure input protocol on UART1.

int	gnss_ubx_set_output_protocol_uart1 (struct gnss_dev *dev, enum gnss_protocol protocol, uint8_t enable, uint8_t layer)
	Configure output protocol on UART1.

int	gnss_ubx_set_output_protocol_usb (struct gnss_dev *dev, enum gnss_protocol protocol, uint8_t enable, uint8_t layer)
	Configure output protocol USB.

int	gnss_ubx_set_input_protocol_uart2 (struct gnss_dev *dev, enum gnss_protocol protocol, uint8_t enable, uint8_t layer)
	Configure input protocol on UART2.

int	gnss_ubx_set_output_protocol_uart2 (struct gnss_dev *dev, enum gnss_protocol protocol, uint8_t enable, uint8_t layer)
	Configure output protocol on UART2.

int	gnss_ubx_configure_baudrate (struct gnss_dev *dev, uint32_t baudrate)
	Configure UBX device baudrate via UBX commands.

int	gnss_ubx_poll_nav_pvt (struct gnss_dev dev, struct gnss_ubx_nav_pvt nav_data)
	Poll navigation data (NAV-PVT)

int	gnss_ubx_poll_nav_timeutc (struct gnss_dev dev, struct gnss_ubx_nav_timeutc time_data)
	Poll time data (NAV-TIMEUTC)

int	gnss_get_nav_data (struct gnss_dev dev, struct gnss_ubx_nav_pvt nav_data)
	Get latest navigation data.

int	gnss_get_time_data (struct gnss_dev dev, struct gnss_ubx_nav_timeutc time_data)
	Get latest time data.

float	gnss_coord_to_degrees (int32_t coord)
	Convert coordinates from 1e-7 degrees to float degrees.

float	gnss_velocity_to_ms (int32_t vel)
	Convert velocity from cm/s to m/s.

float	gnss_time_acc_to_ms (uint32_t acc)
	Convert time accuracy from ns to ms.

float	gnss_pos_acc_to_m (uint32_t acc)
	Convert position accuracy from mm to m.

int32_t	gnss_ubx_get_nanoseconds (struct gnss_dev *dev)
	Get nanosecond fraction of current time from NAV-PVT data.

int	gnss_ubx_get_time_valid (struct gnss_dev dev, bool valid)
	Check if the current time is valid.

int	gnss_ubx_get_time_fully_resolved (struct gnss_dev dev, bool resolved)
	Check if the current time is fully resolved.

uint32_t	gnss_calculate_unix_epoch (uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t minute, uint8_t second)
	Calculate Unix epoch from date/time components.

int	gnss_ubx_get_unix_epoch_with_micros (struct gnss_dev dev, uint32_t epoch, uint32_t *microseconds)
	Get Unix epoch time with microsecond precision.

int	gnss_ubx_get_precise_time (struct gnss_dev dev, struct gnss_precise_time precise_time)
	Get comprehensive precise time information.

int	gnss_ubx_configure_time_pulse (struct gnss_dev *dev, bool enable)
	Configure time pulse output for PPS (Pulse Per Second)

int	gnss_init_pps (struct gnss_dev *dev, bool enable)
	Configure PPS output with optimal settings for timing sync.

int	gnss_ubx_is_time_pulse_enabled (struct gnss_dev dev, bool enabled)
	Check if time pulse is currently enabled.

int	gnss_configure_baudrate_via_nmea (struct gnss_dev *dev, uint32_t baudrate)
	Configure baudrate via standard NMEA command for NMEA-only devices.

int	gnss_configure_messages_via_nmea (struct gnss_dev *dev, uint8_t rate_hz)
	Enable GPRMC/GNRMC message and disable others for clean timing via NMEA commands.

int	gnss_configure_nmea_device (struct gnss_dev *dev, uint32_t baudrate, uint8_t message_rate_hz)
	Configure NMEA-only device for timing operation.

int	gnss_parse_gprmc_sentence (const char sentence, struct gnss_nmea_time rmc_time)
	Parse GPRMC sentence for time and date information.

int	gnss_get_nmea_timing_data (struct gnss_dev dev, struct gnss_nmea_time rmc_time)
	Get timing data from NMEA-only device via GPRMC parsing.

int	gnss_refresh_timing_data (struct gnss_dev *dev)
	Refresh timing data from device (unified API for both UBX and NMEA devices)

int	gnss_get_unified_timing (struct gnss_dev dev, struct gnss_precise_time precise_time)
	Get comprehensive timing information (unified API for both device types)

int	gnss_is_timing_valid (struct gnss_dev dev, bool valid)
	Check if timing data is valid (unified API for both device types)

int	gnss_get_unix_epoch_unified (struct gnss_dev dev, uint32_t epoch, uint32_t *fractional_seconds)
	Get Unix epoch time with best available precision (unified API)

int	gnss_parse_gpgga_sentence (const char sentence, struct gnss_nmea_position position_data)
	Parse GPGGA sentence for position and fix information.

int	gnss_get_nmea_position_data (struct gnss_dev dev, struct gnss_nmea_position position_data)
	Get GPS fix quality and position data (NMEA-only devices)

Detailed Description

Implementation of GNSS Driver.

Author: Radu Etz (radu..nosp@m.etz@.nosp@m.analo.nosp@m.g.co.nosp@m.m)

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

◆ gnss_calculate_checksum()

void gnss_calculate_checksum	(	uint8_t *	data,
		uint16_t	length,
		uint8_t *	checksumA,
		uint8_t *	checksumB )

Calculate UBX checksum.

Parameters

data	- Data buffer
length	- Data length
checksumA	- Checksum A output
checksumB	- Checksum B output

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◆ gnss_calculate_unix_epoch()

uint32_t gnss_calculate_unix_epoch	(	uint16_t	year,
		uint8_t	month,
		uint8_t	day,
		uint8_t	hour,
		uint8_t	minute,
		uint8_t	second )

Calculate Unix epoch from date/time components.

Parameters

year	- Year (must be >= 1970)
month	- Month (1-12)
day	- Day of month
hour	- Hour (0-23)
minute	- Minute (0-59)
second	- Second (0-59)

Returns: Unix epoch in seconds, or 0 if year < 1970

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◆ gnss_configure_baudrate_via_nmea()

int gnss_configure_baudrate_via_nmea	(	struct gnss_dev *	dev,
		uint32_t	baudrate )

Configure baudrate via standard NMEA command for NMEA-only devices.

Parameters

dev	- The device structure
baudrate	- Desired baudrate

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_configure_messages_via_nmea()

int gnss_configure_messages_via_nmea	(	struct gnss_dev *	dev,
		uint8_t	rate_hz )

Enable GPRMC/GNRMC message and disable others for clean timing via NMEA commands.

Parameters

dev	- The device structure
rate_hz	- GPRMC/GNRMC message rate in Hz (typically 1)

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_configure_nmea_device()

int gnss_configure_nmea_device	(	struct gnss_dev *	dev,
		uint32_t	baudrate,
		uint8_t	message_rate_hz )

Configure NMEA-only device for timing operation.

Parameters

dev	- The device structure
baudrate	- Desired baudrate
message_rate_hz	- GPRMC message rate

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_coord_to_degrees()

float gnss_coord_to_degrees ( int32_t coord )

Convert coordinates from 1e-7 degrees to float degrees.

Parameters

coord - Coordinate in 1e-7 degrees

Returns: Coordinate in degrees

◆ gnss_get_nav_data()

int gnss_get_nav_data	(	struct gnss_dev *	dev,
		struct gnss_ubx_nav_pvt *	nav_data )

Get latest navigation data.

Parameters

dev	- The device structure
nav_data	- Navigation data structure to fill

Returns: 0 in case of success, negative error code otherwise

◆ gnss_get_nmea_position_data()

int gnss_get_nmea_position_data	(	struct gnss_dev *	dev,
		struct gnss_nmea_position *	position_data )

Get GPS fix quality and position data (NMEA-only devices)

Parameters

dev	- The device structure
position_data	- Output structure for position data

Returns: 0 in case of success, negative error code otherwise

◆ gnss_get_nmea_timing_data()

int gnss_get_nmea_timing_data	(	struct gnss_dev *	dev,
		struct gnss_nmea_time *	rmc_time )

Get timing data from NMEA-only device via GPRMC parsing.

Parameters

dev	- The device structure
rmc_time	- Output structure for time data

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_get_time_data()

int gnss_get_time_data	(	struct gnss_dev *	dev,
		struct gnss_ubx_nav_timeutc *	time_data )

Get latest time data.

Parameters

dev	- The device structure
time_data	- Time data structure to fill

Returns: 0 in case of success, negative error code otherwise

◆ gnss_get_unified_timing()

int gnss_get_unified_timing	(	struct gnss_dev *	dev,
		struct gnss_precise_time *	precise_time )

Get comprehensive timing information (unified API for both device types)

Parameters

dev	- The device structure
precise_time	- Structure to store precise time data

Returns: 0 in case of success, negative error code otherwise

◆ gnss_get_unix_epoch_unified()

int gnss_get_unix_epoch_unified	(	struct gnss_dev *	dev,
		uint32_t *	epoch,
		uint32_t *	fractional_seconds )

Get Unix epoch time with best available precision (unified API)

Parameters

dev	- The device structure
epoch	- Pointer to store Unix epoch time in seconds
fractional_seconds	- Pointer to store fractional seconds (microseconds)

Returns: 0 in case of success, negative error code otherwise

◆ gnss_hw_reset()

int gnss_hw_reset ( struct gnss_dev * dev )

Reset the GNSS device using hardware reset pin.

Parameters

dev	- The device structure.

Returns: 0 in case of success, negative error code otherwise.

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◆ gnss_init()

int gnss_init	(	struct gnss_dev **	device,
		struct gnss_init_param	init_param )

Initialize the GNSS device and configure communication.

Parameters

device	- The device structure.
init_param	- The structure that contains the device initial parameters.

Returns: 0 in case of success, negative error code otherwise.

◆ gnss_init_pps()

int gnss_init_pps	(	struct gnss_dev *	dev,
		bool	enable )

Configure PPS output with optimal settings for timing sync.

Parameters

dev	- The device structure
enable	- Enable/disable PPS output

Returns: 0 in case of success, negative error code otherwise

◆ gnss_is_timing_valid()

int gnss_is_timing_valid	(	struct gnss_dev *	dev,
		bool *	valid )

Check if timing data is valid (unified API for both device types)

Parameters

dev	- The device structure
valid	- Pointer to store validity status

Returns: 0 in case of success, negative error code otherwise

◆ gnss_parse_gpgga_sentence()

int gnss_parse_gpgga_sentence	(	const char *	sentence,
		struct gnss_nmea_position *	position_data )

Parse GPGGA sentence for position and fix information.

Parameters

sentence	- Complete GPGGA sentence string
position_data	- Output structure for parsed position data

Returns: 0 in case of success, negative error code otherwise

◆ gnss_parse_gprmc_sentence()

int gnss_parse_gprmc_sentence	(	const char *	sentence,
		struct gnss_nmea_time *	rmc_time )

Parse GPRMC sentence for time and date information.

Parameters

sentence	- Complete GPRMC sentence string
rmc_time	- Output structure for parsed time data

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_pos_acc_to_m()

float gnss_pos_acc_to_m ( uint32_t acc )

Convert position accuracy from mm to m.

Parameters

acc	- Position accuracy in mm

Returns: Position accuracy in m

◆ gnss_read()

int gnss_read	(	struct gnss_dev *	dev,
		uint8_t *	data,
		uint16_t	size )

Read data from the device.

Parameters

dev	- The device structure
data	- Data buffer to read into
size	- Number of bytes to read

Returns: number of bytes read in case of succes, negative error code otherwise

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◆ gnss_refresh_timing_data()

int gnss_refresh_timing_data ( struct gnss_dev * dev )

Refresh timing data from device (unified API for both UBX and NMEA devices)

Parameters

dev	- The device structure

Returns: 0 in case of success, negative error code otherwise

◆ gnss_remove()

int gnss_remove ( struct gnss_dev * dev )

Remove the GNSS device and release allocated resources.

Parameters

dev	- The device structure.

Returns: 0 in case of success, negative error code otherwise.

◆ gnss_time_acc_to_ms()

float gnss_time_acc_to_ms ( uint32_t acc )

Convert time accuracy from ns to ms.

Parameters

acc	- Time accuracy in ns

Returns: Time accuracy in ms

◆ gnss_ubx_clr_save_load_config()

int gnss_ubx_clr_save_load_config	(	struct gnss_dev *	dev,
		uint8_t	mask )

Clear save load configuration from flash/BBR.

Parameters

dev	- The device structure
mask	- Load mask (which layers to load)

Returns: 0 in case of success, negative error code otherwise

◆ gnss_ubx_configure_baudrate()

int gnss_ubx_configure_baudrate	(	struct gnss_dev *	dev,
		uint32_t	baudrate )

Configure UBX device baudrate via UBX commands.

Parameters

dev	- The device structure
baudrate	- Desired baudrate

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_configure_time_pulse()

int gnss_ubx_configure_time_pulse	(	struct gnss_dev *	dev,
		bool	enable )

Configure time pulse output for PPS (Pulse Per Second)

Parameters

dev	- The device structure
enable	- Enable/disable time pulse

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_get_nanoseconds()

int32_t gnss_ubx_get_nanoseconds ( struct gnss_dev * dev )

Get nanosecond fraction of current time from NAV-PVT data.

Parameters

dev	- The device structure

Returns: Nanosecond fraction (can be negative), 0 on error

◆ gnss_ubx_get_precise_time()

int gnss_ubx_get_precise_time	(	struct gnss_dev *	dev,
		struct gnss_precise_time *	precise_time )

Get comprehensive precise time information.

Parameters

dev	- The device structure
precise_time	- Structure to store precise time data

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_get_time_fully_resolved()

int gnss_ubx_get_time_fully_resolved	(	struct gnss_dev *	dev,
		bool *	resolved )

Check if the current time is fully resolved.

Parameters

dev	- The device structure
resolved	- Pointer to store resolved status

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_get_time_valid()

int gnss_ubx_get_time_valid	(	struct gnss_dev *	dev,
		bool *	valid )

Check if the current time is valid.

Parameters

dev	- The device structure
valid	- Pointer to store validity status

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_get_unix_epoch_with_micros()

int gnss_ubx_get_unix_epoch_with_micros	(	struct gnss_dev *	dev,
		uint32_t *	epoch,
		uint32_t *	microseconds )

Get Unix epoch time with microsecond precision.

Parameters

dev	- The device structure
epoch	- Pointer to store Unix epoch time in seconds
microseconds	- Pointer to store microsecond fraction

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_get_val()

int gnss_ubx_get_val	(	struct gnss_dev *	dev,
		uint32_t	key_id,
		uint64_t *	value,
		uint8_t	value_size,
		uint8_t	layer )

Get configuration value by key.

Parameters

dev	- The device structure
key_id	- Configuration key ID
value	- Pointer to store the value
value_size	- Size of value (1, 2, 4, or 8 bytes)
layer	- Configuration layer (RAM, BBR, Flash)

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_is_time_pulse_enabled()

int gnss_ubx_is_time_pulse_enabled	(	struct gnss_dev *	dev,
		bool *	enabled )

Check if time pulse is currently enabled.

Parameters

dev	- The device structure
enabled	- Pointer to store enabled status

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_poll_nav_pvt()

int gnss_ubx_poll_nav_pvt	(	struct gnss_dev *	dev,
		struct gnss_ubx_nav_pvt *	nav_data )

Poll navigation data (NAV-PVT)

Parameters

dev	- The device structure
nav_data	- Navigation data structure to fill

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_poll_nav_timeutc()

int gnss_ubx_poll_nav_timeutc	(	struct gnss_dev *	dev,
		struct gnss_ubx_nav_timeutc *	time_data )

Poll time data (NAV-TIMEUTC)

Parameters

dev	- The device structure
time_data	- Time data structure to fill

Returns: 0 in case of success, negative error code otherwise

◆ gnss_ubx_receive_packet()

int gnss_ubx_receive_packet	(	struct gnss_dev *	dev,
		struct gnss_ubx_packet *	packet )

UBX packet receive.

Parameters

dev	- The device structure
packet	- Packet structure to fill

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_send_packet()

int gnss_ubx_send_packet	(	struct gnss_dev *	dev,
		uint8_t	cls,
		uint8_t	id,
		uint8_t *	payload,
		uint16_t	length )

Send UBX binary protocol packet to the GNSS device.

Parameters

dev	- The device structure.
cls	- UBX message class.
id	- UBX message ID.
payload	- Pointer to payload data buffer.
length	- Payload length in bytes.

Returns: ret 0 in case of success, negative error code otherwise.

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◆ gnss_ubx_set_input_protocol_uart1()

int gnss_ubx_set_input_protocol_uart1	(	struct gnss_dev *	dev,
		enum gnss_protocol	protocol,
		uint8_t	enable,
		uint8_t	layer )

Configure input protocol on UART1.

Parameters

dev	- The device structure
protocol	- Protocol type
enable	- Enable/disable
layer	- Configuration layer

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_set_input_protocol_uart2()

int gnss_ubx_set_input_protocol_uart2	(	struct gnss_dev *	dev,
		enum gnss_protocol	protocol,
		uint8_t	enable,
		uint8_t	layer )

Configure input protocol on UART2.

Parameters

dev	- The device structure
protocol	- Protocol type
enable	- Enable/disable
layer	- Configuration layer

Returns: 0 in case of success, negative error code otherwise

◆ gnss_ubx_set_output_protocol_uart1()

int gnss_ubx_set_output_protocol_uart1	(	struct gnss_dev *	dev,
		enum gnss_protocol	protocol,
		uint8_t	enable,
		uint8_t	layer )

Configure output protocol on UART1.

Parameters

dev	- The device structure
protocol	- Protocol type
enable	- Enable/disable
layer	- Configuration layer

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_set_output_protocol_uart2()

int gnss_ubx_set_output_protocol_uart2	(	struct gnss_dev *	dev,
		enum gnss_protocol	protocol,
		uint8_t	enable,
		uint8_t	layer )

Configure output protocol on UART2.

Parameters

dev	- The device structure
protocol	- Protocol type
enable	- Enable/disable
layer	- Configuration layer

Returns: 0 in case of success, negative error code otherwise

◆ gnss_ubx_set_output_protocol_usb()

int gnss_ubx_set_output_protocol_usb	(	struct gnss_dev *	dev,
		enum gnss_protocol	protocol,
		uint8_t	enable,
		uint8_t	layer )

Configure output protocol USB.

Parameters

dev	- The device structure
protocol	- Protocol type
enable	- Enable/disable
layer	- Configuration layer

Returns: 0 in case of success, negative error code otherwise

◆ gnss_ubx_set_val()

int gnss_ubx_set_val	(	struct gnss_dev *	dev,
		uint32_t	key_id,
		uint64_t	value,
		uint8_t	value_size,
		uint8_t	layer )

Set configuration value by key.

Parameters

dev	- The device structure
key_id	- Configuration key ID
value	- Value to set
value_size	- Size of value (1, 2, 4, or 8 bytes)
layer	- Configuration layer (RAM, BBR, Flash)

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_set_val_no_ack()

int gnss_ubx_set_val_no_ack	(	struct gnss_dev *	dev,
		uint32_t	key_id,
		uint64_t	value,
		uint8_t	value_size,
		uint8_t	layer )

Set configuration value by key (no ACK version)

Parameters

dev	- The device structure
key_id	- Configuration key ID
value	- Value to set
value_size	- Size of value (1, 2, 4, or 8 bytes)
layer	- Configuration layer (RAM, BBR, Flash)

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_sw_reset()

int gnss_ubx_sw_reset ( struct gnss_dev * dev )

Reset the device using SW reset.

Parameters

dev	- The device structure

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_ubx_wait_for_ack()

int gnss_ubx_wait_for_ack	(	struct gnss_dev *	dev,
		uint8_t	cls,
		uint8_t	id )

Wait for ACK/NAK.

Parameters

dev	- The device structure
cls	- Expected class
id	- Expected message ID

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_velocity_to_ms()

float gnss_velocity_to_ms ( int32_t vel )

Convert velocity from cm/s to m/s.

Parameters

vel	- Velocity in cm/s

Returns: Velocity in m/s

◆ gnss_verify_checksum()

int gnss_verify_checksum	(	uint8_t *	data,
		uint16_t	length,
		uint8_t	checksumA,
		uint8_t	checksumB )

Verify UBX checksum.

Parameters

data	- Data buffer
length	- Data length
checksumA	- Expected checksum A
checksumB	- Expected checksum B

Returns: 0 in case of success, negative error code otherwise

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◆ gnss_write()

int gnss_write	(	struct gnss_dev *	dev,
		uint8_t *	data,
		uint16_t	size )

Write data to the device.

Parameters

dev	- The device structure
data	- Data buffer to write
size	- Number of bytes to write

Returns: 0 in case of success, negative error code otherwise

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Functions

Detailed Description

Function Documentation

◆ gnss_calculate_checksum()

◆ gnss_calculate_unix_epoch()

◆ gnss_configure_baudrate_via_nmea()

◆ gnss_configure_messages_via_nmea()

◆ gnss_configure_nmea_device()

◆ gnss_coord_to_degrees()

◆ gnss_get_nav_data()

◆ gnss_get_nmea_position_data()

◆ gnss_get_nmea_timing_data()

◆ gnss_get_time_data()

◆ gnss_get_unified_timing()

◆ gnss_get_unix_epoch_unified()

◆ gnss_hw_reset()

◆ gnss_init()

◆ gnss_init_pps()

◆ gnss_is_timing_valid()

◆ gnss_parse_gpgga_sentence()

◆ gnss_parse_gprmc_sentence()

◆ gnss_pos_acc_to_m()

◆ gnss_read()

◆ gnss_refresh_timing_data()

◆ gnss_remove()

◆ gnss_time_acc_to_ms()

◆ gnss_ubx_clr_save_load_config()

◆ gnss_ubx_configure_baudrate()

◆ gnss_ubx_configure_time_pulse()

◆ gnss_ubx_get_nanoseconds()

◆ gnss_ubx_get_precise_time()

◆ gnss_ubx_get_time_fully_resolved()

◆ gnss_ubx_get_time_valid()

◆ gnss_ubx_get_unix_epoch_with_micros()

◆ gnss_ubx_get_val()

◆ gnss_ubx_is_time_pulse_enabled()

◆ gnss_ubx_poll_nav_pvt()

◆ gnss_ubx_poll_nav_timeutc()

◆ gnss_ubx_receive_packet()

◆ gnss_ubx_send_packet()

◆ gnss_ubx_set_input_protocol_uart1()

◆ gnss_ubx_set_input_protocol_uart2()

◆ gnss_ubx_set_output_protocol_uart1()

◆ gnss_ubx_set_output_protocol_uart2()

◆ gnss_ubx_set_output_protocol_usb()

◆ gnss_ubx_set_val()

◆ gnss_ubx_set_val_no_ack()

◆ gnss_ubx_sw_reset()

◆ gnss_ubx_wait_for_ack()

◆ gnss_velocity_to_ms()

◆ gnss_verify_checksum()

◆ gnss_write()