CANconfig(...,ADD_ID,...)

Description

Configures CAN BUS interface for reading. Adds CAN ID filter.

Syntax

CANconfig(id, ADD_ID, parameter, CAN_ID);

Parameters

Variable	Input

Variable	Input
`id`	CAN1 - Reset filters of CAN1. CAN2 - Reset filters of CAN2.
`ADD_ID`	Gives command to add ID filter.
`parameter`	STANDARD - Add standard 11-bit CAN identifier. EXTENDED - Add extended 29-bit CAN identifier.
`CAN_ID`	User defined can ID (for example 0x7C6).

Returns

Return value	Return explanation
SCRIPT_OPERATION_SUCCESS	Filter reset successful.
SCRIPT_OPERATION_FAILED	Failed to reset filter.
SCRIPT_NO_ACCESS	Failed to get access to specified CAN-BUS
SCRIPT_PARAM_INVALID	Invalid parameters.

Function call example

CANconfig example

#define CAN1_MODE_READ
#include <can>								    // Include can library

new can_rx_buffer[11];  

forward public callback (event);
public callback (event)
{
    switch(event)
    {
       case CAN1:                               // CAN1 callback event
       {
          ReadCANmsg(CAN1, can_rx_buffer);
       }
    }
    return 0;
}

main()
{
	Init(CAN1, NORMAL, 500000, CAN1_READ);
    CANconfig(CAN1, RESET_FILTER);               // Reset all filters before setting new 
    CANconfig(CAN1, ADD_ID, STANDARD, 0x7C6);    // Configure Can id which is going to be read
	CANconfig(CAN1, ADD_ID, STANDARD, 0x7CF);    // Configure Can id which is going to be read

    for(;;)
    {
        Delay(1000);
    }
}

Notes and Warnings

Filter limitations:
- on XG37 series devices:
  - 28 Extended Mask filters for both CANs in total;
  - 56 Extended ID filters for both CANs in total;
  - 56 Standard Mask filters for both CANs in total;
  - 112 Standard ID filters for both CANs in total.
- Filters are shared with canbase_b - using CAN Vehicle Model will reduce free filters available for scripts.
Before using filter config, first it is recommended to use command RESET_FILTER, to clear all previously set filters.

Used in Examples

CAN example