canfd2  2.0.0.0
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CAN FD 2 Click

CAN FD 2 Click is a HS CAN transceiver add on board, suitable for evaluation of TLE9255W CAN network transceiver from Infineon.

Click Product page


Click library

  • Author : MikroE Team
  • Date : Jun 2020.
  • Type : UART type

Software Support

We provide a library for the CanFd2 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for CanFd2 Click driver.

Standard key functions :

Example key functions :

Examples Description

This example reads and processes data from CAN FD 2 clicks.

The demo application is composed of two sections :

Application Init

Initializes the driver and configures the Click board for the selected mode.

void application_init ( void )
{
log_cfg_t log_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
CANFD2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
canfd2_init( &canfd2, &cfg );
Delay_ms ( 100 );
#ifdef DEMO_APP_TRANSMITTER
if ( CANFD2_OP_MODE_NORMAL == canfd2_get_mode ( &canfd2 ) )
{
log_info( &logger, "--- TRANSMITTER MODE ---" );
}
else
{
log_info( &logger, "--- ERROR ---" );
log_printf( &logger, "Please restart your system.\r\n" );
for ( ; ; );
}
#else
{
log_info( &logger, "--- RECEIVER MODE ---" );
}
else
{
log_info( &logger, "--- ERROR ---" );
log_printf( &logger, "Please restart your system.\r\n" );
for ( ; ; );
}
#endif
Delay_ms ( 100 );
}

Application Task

Depending on the selected mode, it reads all the received data or sends the desired message every 2 seconds.

void application_task ( void )
{
#ifdef DEMO_APP_TRANSMITTER
log_info( &logger, "--- The message is sent ---" );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
#else
canfd2_process( &canfd2 );
if ( app_buf_len > 0 )
{
Delay_ms ( 100 );
canfd2_process ( &canfd2 );
log_printf( &logger, "Received data: %s", app_buf );
canfd2_clear_app_buf( );
}
#endif
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.CanFd2

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.


CANFD2_OP_MODE_RECEIVE_ONLY
#define CANFD2_OP_MODE_RECEIVE_ONLY
Definition: canfd2.h:310
canfd2_t
Click ctx object definition.
Definition: canfd2.h:340
canfd2_cfg_setup
void canfd2_cfg_setup(canfd2_cfg_t *cfg)
Config Object Initialization function.
canfd2_generic_write
void canfd2_generic_write(canfd2_t *ctx, uint8_t *data_buf, uint16_t len)
Generic write function.
canfd2_write_data
void canfd2_write_data(canfd2_t *ctx, uint8_t reg_addr, uint8_t write_data)
Generic write the byte of data function.
application_task
void application_task(void)
Definition: main.c:121
canfd2_cfg_t
Click configuration structure definition.
Definition: canfd2.h:360
canfd2_generic_read
int32_t canfd2_generic_read(canfd2_t *ctx, uint8_t *data_buf, uint16_t max_len)
Generic read function.
canfd2_init
err_t canfd2_init(canfd2_t *ctx, canfd2_cfg_t *cfg)
Initialization function.
application_init
void application_init(void)
Definition: main.c:66
CANFD2_OP_MODE_NORMAL
#define CANFD2_OP_MODE_NORMAL
Definition: canfd2.h:311
canfd2_set_mode
void canfd2_set_mode(canfd2_t *ctx, uint8_t op_mode)
Set operating mode function.
CANFD2_SET_DATA_SAMPLE_EDGE
#define CANFD2_SET_DATA_SAMPLE_EDGE
Data sample selection.
Definition: canfd2.h:327
CANFD2_MAP_MIKROBUS
#define CANFD2_MAP_MIKROBUS(cfg, mikrobus)
Definition: canfd2.h:67
DEMO_TEXT_MESSAGE
#define DEMO_TEXT_MESSAGE
Definition: main.c:35
canfd2_get_mode
uint8_t canfd2_get_mode(canfd2_t *ctx)
Get operating mode function.