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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.17
mikroSDK Library: 2.0.0.0
Category: GPS/GNSS
Downloaded: 273 times
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License: MIT license
Determine your current position with GNSS 7 Click. It carries the NEO-M9N GNSS receiver module from u-blox.
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DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
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4159_gnss_7_click.zip [805.71KB] | 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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Determine your current position with GNSS 7 Click. It carries the NEO-M9N GNSS receiver module from u-blox.
We provide a library for the GNSS 7 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 7 Click driver.
gnss7_cfg_setup
Config Object Initialization function.
void gnss7_cfg_setup ( gnss7_cfg_t *cfg );
gnss7_init
Initialization function.
err_t gnss7_init ( gnss7_t *ctx, gnss7_cfg_t *cfg );
gnss7_generic_read
This function reads a desired number of data bytes by using UART serial interface.
err_t gnss7_generic_read ( gnss7_t *ctx, char *data_out, uint16_t len );
gnss7_clear_ring_buffers
This function clears UART tx and rx ring buffers.
void gnss7_clear_ring_buffers ( gnss7_t *ctx );
gnss7_parse_gngga
This function parses the GNGGA data from the read response buffer.
err_t gnss7_parse_gngga ( char *rsp_buf, uint8_t gngga_element, char *element_data );
This example demonstrates the use of GNSS 7 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. */
gnss7_cfg_t gnss7_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.
gnss7_cfg_setup( &gnss7_cfg );
GNSS7_MAP_MIKROBUS( gnss7_cfg, MIKROBUS_1 );
if ( UART_ERROR == gnss7_init( &gnss7, &gnss7_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
Reads the received data, parses the GNGGA 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 ( GNSS7_OK == gnss7_process( &gnss7 ) )
{
if ( PROCESS_BUFFER_SIZE == app_buf_len )
{
gnss7_parser_application( &gnss7, 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.