gnss18 2.1.0.0
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GNSS 18 click

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[click Product page](CLICK_PRODUCT_PAGE_LINK)


Click library

  • Author : Stefan Ilic
  • Date : Mar 2024.
  • Type : UART type

Software Support

We provide a library for the GNSS 18 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.

Library Description

This library contains API for GNSS 18 Click driver.

Standard key functions :

Example key functions :

  • gnss18_generic_read This function reads a desired number of data bytes from the module.
    err_t gnss18_generic_read ( gnss18_t *ctx, uint8_t *data_out, uint8_t len );
    err_t gnss18_generic_read(gnss18_t *ctx, uint8_t *data_out, uint8_t len)
    GNSS 18 data reading function.
  • gnss18_reset_device This function resets the device by toggling the RST pin.
    void gnss18_reset_device(gnss18_t *ctx)
    GNSS 18 reset device function.
  • gnss18_parse_gpgga This function parses the GPGGA data from the read response buffer.
    err_t gnss18_parse_gpgga ( uint8_t *rsp_buf, uint8_t gpgga_element, uint8_t *element_data );
    err_t gnss18_parse_gpgga(uint8_t *rsp_buf, uint8_t gpgga_element, uint8_t *element_data)
    GNSS 18 parse GPGGA function.

Example Description

This example demonstrates the use of GNSS 18 click by reading and displaying the GNSS coordinates.

The demo application is composed of two sections :

Application Init

Initializes the driver and resets the click board.

void application_init ( void )
{
log_cfg_t log_cfg;
gnss18_cfg_t gnss18_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
gnss18_cfg_setup( &gnss18_cfg );
GNSS18_MAP_MIKROBUS( gnss18_cfg, MIKROBUS_1 );
err_t init_flag = gnss18_init( &gnss18, &gnss18_cfg );
if ( ( UART_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
#define GNSS18_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: gnss18.h:133
void application_init(void)
Definition: main.c:68

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 ( GNSS18_OK == gnss18_process( &gnss18 ) )
{
if ( PROCESS_BUFFER_SIZE == app_buf_len )
{
gnss18_parser_application( app_buf );
}
}
}
@ GNSS18_OK
Definition: gnss18.h:226
void application_task(void)
Definition: main.c:99
#define PROCESS_BUFFER_SIZE
Definition: main.c:31

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:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.GNSS18

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.