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mikroSDK Library

CXPI click

Rating:

5

Author: MIKROE

Last Updated: 2020-11-17

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Interface

Downloaded: 2791 times

Not followed.

License: MIT license  

CXPI Click is a compact add-on board that contains a transceiver that supports the next-generation automotive communication protocol. This board features the BD41000AFJ-C, a transceiver for the CXPI (Clock Extension Peripheral Interface) communication from Rohm Semiconductor.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

CXPI Click

CXPI Click

Native view of the CXPI Click board.

View full image
CXPI Click

CXPI Click

Front and back view of the CXPI Click board.

View full image

Library Description

The library covers all the necessary functions to control CXPI click board. Library performs a standard UART communication.

Key functions:

  • void cxpi_write_byte ( uint8_t input ) - Write Single Byte.
  • uint8_t cxpi_read_byte ( void ) - Read Single Byte.
  • uint8_t cxpi_byte_ready ( void ) - Check for new byte received.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes UART used for communication and another UART bus used for data logging.
  • Application Initialization - Initializes UART driver. In addition to this module is placed inside transmitter/receiver working mode cappable of transmission/receive the data.
  • Application Task - (code snippet) - This is an example that demonstrates the use of the CXPI Click board. Transmitter/Receiver task depend on uncommented code Receiver logging each received byte to the UART for data logging, while transmitted send messages every 5 seconds.
void application_task ( )
{
    if ( app_mode == APP_MODE_TRANSMITER )
    {
        mikrobus_logWrite( "----------------------", _LOG_LINE );
        mikrobus_logWrite( "", _LOG_LINE );

        cxpi_write_data( &demo_message_data[ 0 ], 9 );

        mikrobus_logWrite( "  TX Data:  ", _LOG_TEXT );
        mikrobus_logWrite( demo_message_data, _LOG_LINE );
        Delay_ms( 5000 );
    }
}

Other mikroE Libraries used in the example:

  • UART

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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