pcr  2.1.0.0
Main Page

PCR click

PCR Click is a compact add-on board that allows you to use a pulsed coherent radar (PCR) in your application. This board features the XM125, the Entry+ PCR module from Acconeer. The XM125 uses an Acconeer A121 pulsed coherent radar system based on a patented PCR technology with picosecond time resolution.

click Product page


Click library

  • Author : Stefan Ilic
  • Date : Nov 2023.
  • Type : I2C type

Software Support

We provide a library for the PCR 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 PCR Click driver.

Standard key functions :

Example key functions :

  • pcr_write_reg PCR register writing function.
    err_t pcr_write_reg ( pcr_t *ctx, uint16_t reg, uint32_t data_in );
  • pcr_check_if_busy PCR check if device is busy function.
    err_t pcr_check_if_busy ( pcr_t *ctx );
  • pcr_get_distance PCR read distance function.
    err_t pcr_get_distance ( pcr_t *ctx, uint32_t *distance_data );

Example Description

This example demonstrates the use of PCR click board by

reading distance between click board and object.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger and performs the click default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
pcr_cfg_t pcr_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
pcr_cfg_setup( &pcr_cfg );
PCR_MAP_MIKROBUS( pcr_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == pcr_init( &pcr, &pcr_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( PCR_ERROR == pcr_default_cfg ( &pcr ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Reading distance between click board and object every 2 seconds and logging it on UART terminal.

void application_task ( void )
{
uint32_t distance_data = 0;
pcr_get_distance ( &pcr, &distance_data );
log_printf( &logger, " Distance: %lu mm \r\n", distance_data );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
}

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.PCR

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.


PCR_MAP_MIKROBUS
#define PCR_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: pcr.h:209
PCR_ERROR
@ PCR_ERROR
Definition: pcr.h:266
pcr_default_cfg
err_t pcr_default_cfg(pcr_t *ctx)
PCR default configuration function.
pcr_init
err_t pcr_init(pcr_t *ctx, pcr_cfg_t *cfg)
PCR initialization function.
pcr_check_if_busy
err_t pcr_check_if_busy(pcr_t *ctx)
PCR check if device is busy function.
application_task
void application_task(void)
Definition: main.c:64
pcr_cfg_t
PCR Click configuration object.
Definition: pcr.h:245
pcr_t
PCR Click context object.
Definition: pcr.h:224
application_init
void application_init(void)
Definition: main.c:28
pcr_get_distance
err_t pcr_get_distance(pcr_t *ctx, uint32_t *distance_data)
PCR read distance function.
pcr_write_reg
err_t pcr_write_reg(pcr_t *ctx, uint16_t reg, uint32_t data_in)
PCR register writing function.
pcr_cfg_setup
void pcr_cfg_setup(pcr_cfg_t *cfg)
PCR configuration object setup function.