gnsszoe  2.0.0.0
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GNSS ZOE click

GNSS ZOE Click is a evaluation board for ultra small ZOE-M8Q GNSS SiP receiver from u-blox.

click Product page


Click library

  • Author : Stefan Filipovic
  • Date : Aug 2022.
  • Type : UART/I2C/SPI type

Software Support

We provide a library for the GNSS ZOE 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 ZOE Click driver.

Standard key functions :

Example key functions :

  • gnsszoe_reset_device This function resets the device by toggling the RST pin.
  • gnsszoe_generic_read This function reads a desired number of data bytes from the module.
    err_t gnsszoe_generic_read ( gnsszoe_t *ctx, uint8_t *data_out, uint8_t len );
  • gnsszoe_parse_gngga This function parses the GNGGA data from the read response buffer.
    err_t gnsszoe_parse_gngga ( char *rsp_buf, uint8_t gngga_element, char *element_data );

Example Description

This example demonstrates the use of GNSS ZOE 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;
gnsszoe_cfg_t gnsszoe_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
gnsszoe_cfg_setup( &gnsszoe_cfg );
GNSSZOE_MAP_MIKROBUS( gnsszoe_cfg, MIKROBUS_1 );
err_t init_flag = gnsszoe_init( &gnsszoe, &gnsszoe_cfg );
if ( ( UART_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) || ( SPI_MASTER_ERROR == init_flag ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

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 )
{
gnsszoe_process( &gnsszoe );
if ( app_buf_len > ( sizeof ( GNSSZOE_RSP_GNGGA ) + GNSSZOE_GNGGA_ELEMENT_SIZE ) )
{
gnsszoe_parser_application( 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:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.GNSSZOE

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.


GNSSZOE_GNGGA_ELEMENT_SIZE
#define GNSSZOE_GNGGA_ELEMENT_SIZE
GNSS ZOE GNGGA command elements.
Definition: gnsszoe.h:84
gnsszoe_cfg_t
GNSS ZOE Click configuration object.
Definition: gnsszoe.h:213
gnsszoe_s
GNSS ZOE Click context object.
Definition: gnsszoe.h:186
application_task
void application_task(void)
Definition: main.c:100
GNSSZOE_MAP_MIKROBUS
#define GNSSZOE_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: gnsszoe.h:148
GNSSZOE_RSP_GNGGA
#define GNSSZOE_RSP_GNGGA
Definition: gnsszoe.h:78
gnsszoe_init
err_t gnsszoe_init(gnsszoe_t *ctx, gnsszoe_cfg_t *cfg)
GNSS ZOE initialization function.
gnsszoe_reset_device
void gnsszoe_reset_device(gnsszoe_t *ctx)
GNSS ZOE reset device function.
gnsszoe_cfg_setup
void gnsszoe_cfg_setup(gnsszoe_cfg_t *cfg)
GNSS ZOE configuration object setup function.
gnsszoe_generic_read
err_t gnsszoe_generic_read(gnsszoe_t *ctx, uint8_t *data_out, uint8_t len)
GNSS ZOE data reading function.
application_init
void application_init(void)
Definition: main.c:69
gnsszoe_parse_gngga
err_t gnsszoe_parse_gngga(char *rsp_buf, uint8_t gngga_element, char *element_data)
GNSS ZOE parse GNGGA function.