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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.19
mikroSDK Library: 2.0.0.0
Category: GPS/GNSS
Downloaded: 158 times
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License: MIT license
GNSS2 Click carries Quectel’s L76 module and an SMA antenna connector.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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4162_gnss_2_click.zip [587.98KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for dsPIC XC16 |
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GNSS2 Click carries Quectel’s L76 module and an SMA antenna connector.
We provide a library for the GNSS 2 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
This library contains API for GNSS 2 Click driver.
gnss2_cfg_setup
Config Object Initialization function.
void gnss2_cfg_setup ( gnss2_cfg_t *cfg );
gnss2_init
Initialization function.
err_t gnss2_init ( gnss2_t *ctx, gnss2_cfg_t *cfg );
gnss2_generic_read
This function reads a desired number of data bytes by using UART serial interface.
err_t gnss2_generic_read ( gnss2_t *ctx, char *data_out, uint16_t len );
gnss2_clear_ring_buffers
This function clears UART tx and rx ring buffers.
void gnss2_clear_ring_buffers ( gnss2_t *ctx );
gnss2_parse_gpgga
This function parses the GPGGA data from the read response buffer.
err_t gnss2_parse_gpgga ( char *rsp_buf, uint8_t gpgga_element, char *element_data );
This example demonstrates the use of GNSS 2 Click by reading and displaying the GPS coordinates.
The demo application is composed of two sections :
Initializes the driver and logger.
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
gnss2_cfg_t gnss2_cfg; /**< Click config object. */
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
gnss2_cfg_setup( &gnss2_cfg );
GNSS2_MAP_MIKROBUS( gnss2_cfg, MIKROBUS_1 );
if ( UART_ERROR == gnss2_init( &gnss2, &gnss2_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
Reads the received data, parses the GPGGA info from it, and once it receives the position fix it will start displaying the coordinates on the USB UART.
void application_task ( void )
{
if ( GNSS2_OK == gnss2_process( &gnss2 ) )
{
if ( PROCESS_BUFFER_SIZE == app_buf_len )
{
gnss2_parser_application( &gnss2, app_buf );
}
}
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
Additional notes and informations
Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.