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mikroSDK Library

CAN FD click

Rating:

5

Author: MIKROE

Last Updated: 2020-01-24

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: CAN

Downloaded: 3919 times

Not followed.

License: MIT license  

CAN FD Click is a transceiver designed for HS CAN networks up to 5 Mbit/s in automotive and industrial applications. As an interface between the physical bus layer and the CAN protocol controller, the TLE9252V drives the signals to the bus and protects the microcontroller against interferences generated within the network.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

CAN FD click

CAN FD click

Native view of the CAN FD click board.

View full image
CAN FD click

CAN FD click

Front and back view of the CAN FD click board.

View full image

Library Description

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

Key functions:

  • canfd_byte_ready( ) - Write Single Byte
  • uint8_t canfd_read_byte( ) - Read Single Byte.
  • void canfd_set_operating_mode ( uint8_t op_mode ) - Set operating mode function.

Examples description

The application is composed of three sections :

  • System Initialization - Initializes UART, sets ERR ( INT ) pin as input and STB ( RST ) and EN ( CS ) pins as output, begins to write a log.
  • Application Initialization - Initialization driver enables - UART, performs an app mode, also write log.
  • Application Task - (code snippet) This is an example that demonstrates the use of the CAN FD click board. This application task writes message data via UART. In the second case, checks if new data byte have received in RX buffer ( ready for reading ), and if ready than reads one byte from RX buffer. Results are being sent to the Usart Terminal where you can track their changes.
void application_task ( )
{
    char tmp;
    uint8_t drdy_flag;

    if ( app_mode == APP_MODE_RECEIVER )
    {
        // RECEIVER - UART polling

        drdy_flag = canfd_byte_ready( );

        if ( 1 == drdy_flag )
        {
            tmp = canfd_read_byte( );
            mikrobus_logWrite( &tmp, _LOG_BYTE );
        }
    }
    else
    {
        // TRANSMITER - TX each 2 sec
        mikrobus_logWrite( " TX data: ", _LOG_TEXT );
        Delay_ms( 1000 );
        
        for ( tmp = 0; tmp < 9; tmp++ )
        {
            canfd_write_byte( demo_message_data[ tmp ] );
            mikrobus_logWrite( &demo_message_data[ tmp ], _LOG_BYTE );
            Delay_ms( 200 );
        }

        mikrobus_logWrite( "------------------", _LOG_LINE );
        Delay_ms( 2000 );
    }
}

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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