Init(CANX,...)

Description

Initializes CAN BUS pins.

Syntax

Init(CANX, MODE, SPEED);

In case user wants to use CAN Database and script at the same time:

Init(CANX, MODE, SPEED, CANX_READ);

Parameters

Variable	Input

Variable	Input
`CANX`	This defines which can channel pins (CAN H and CAN L) is going to be used. Can be either CAN1 or CAN2
`MODE`	NORMAL - In normal mode Can Bus provides ACK frame and is able to send messages. SILENT - Silent mode means the interface only listens to the CAN bus. This means the unit does not even provide an ACK frame when a message is placed on the CAN bus correctly. ONE_SHOT - One shot mode sends single frame to can bus without requesting ACK. This is a non-automatic retransmission mode.
`SPEED`	Can bus baudrate which is measured in Kbit/s (for example 20 Kbit/s, 33.333 Kbit/s and so on). Speed is either 20000, 33333, 50000, 83333, 100000, 125000, 250000, 500000 or 1000000
`CANX_READ`	Initializes receive buffer for reading CAN messages. Can be either CAN1_READ or CAN2_READ

Returns

Return value	Return explanation
SCRIPT_OPERATION_SUCCESS	Success
SCRIPT_OPERATION_FAILED	Failed
SCRIPT_NO_ACCESS	Peripheral already initialized.
SCRIPT_PARAM_INVALID	Passed invalid init parameters.

Function call example (1)

CANX initialization example

main()
{
	Init(CAN1, NORMAL, 250000);
	while(1){
		Delay(100); 
	}
}

Function call example (2)

CANX read mode initialization example

...
#define CAN1_MODE_READ
#include <can>
...
public callback (event)
{
    switch(event)
    {
        case CAN1:
        {
            ...
        }
    }
    return 0;
}
...
main()
{
    Init(CAN1, NORMAL, 250000, CAN1_READ);
    while(1)
    {
        Delay(100); 
    }
}

Used in Examples

CAN example