gnssrtk

\mainpage Main Page

---

GNSS RTK click

GNSS RTK Click is a compact add-on board made for positioning and wireless communication purposes. This board features the ZED-F9P, a multi-band GNSS module with integrated multi-band Real Time Kinematics (RTK) technology offering centimeter-level accuracy from U-blox.

click Product page

---

Click library

• Author : Stefan Nikolic
• Date : nov 2020.
• Type : UART type

Software Support

We provide a library for the GNSSRTK 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 GNSSRTK Click driver.

Standard key functions :

• Config Object Initialization function.

void gnssrtk_cfg_setup ( gnssrtk_cfg_t *cfg );

• Initialization function.

GNSSRTK_RETVAL gnssrtk_init ( gnssrtk_t *ctx, gnssrtk_cfg_t *cfg );

• Click Default Configuration function.

void gnssrtk_default_cfg ( gnssrtk_t *ctx );

Example key functions :

• Generic parser function.

gnssrtk_error_t gnssrtk_generic_parser ( char *rsp,  uint8_t command, uint8_t element, char *parser_buf );

• Generic read function.

err_t gnssrtk_generic_read ( gnssrtk_t *ctx, char *data_buf, uint16_t max_len );

• Module cold start function.

void gnssrtk_module_cold_start ( gnssrtk_t *ctx );

Examples Description

This example reads and processes data from GNSS RTK click.

The demo application is composed of two sections :

Application Init

Initializes driver and starts the module.

void application_init ( void ) {
    log_cfg_t log_cfg;  /**< Logger config object. */
    gnssrtk_cfg_t gnssrtk_cfg;  /**< Click config object. */

    // Logger initialization.

    LOG_MAP_USB_UART( log_cfg );
    log_cfg.level = LOG_LEVEL_DEBUG;
    log_cfg.baud = 115200;
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.

    gnssrtk_cfg_setup( &gnssrtk_cfg );
    GNSSRTK_MAP_MIKROBUS( gnssrtk_cfg, MIKROBUS_1 );
    Delay_ms( 100 );
    err_t init_flag  = gnssrtk_init( &gnssrtk, &gnssrtk_cfg );
    if ( init_flag == UART_ERROR ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    gnssrtk_default_cfg ( &gnssrtk );
    log_info( &logger, " Application Task " );
    Delay_ms( 100 );
}

Application Task

Reads the received data and parses it.

void application_task ( void ) {
    gnssrtk_process();
    parser_application( current_parser_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:

• MikroSDK.Board
• MikroSDK.Log
• Click.GNSSRTK

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.

---