topic Re: CAN2_SetAcceptanceMask how to use in Kinetis Microcontrollers

CAN2_SetAcceptanceMask how to use

李志權 — Thu, 19 Dec 2013 05:36:41 GMT

when i call it,it will return 9 ERR_NOTAVAIL

how to use?

kerryzhou — Fri, 20 Dec 2013 01:15:59 GMT

Hi 志權，

Could you tell us which chip or board you are used?

And where the CAN2_SetAcceptance Mask from?

For the convenience of solving the question, it is best for you to paste you 9 ERR_NOTALAIL.

Best regards!

Jing

李志權 — Fri, 20 Dec 2013 03:33:04 GMT

Kan_Li — Fri, 20 Dec 2013 07:18:33 GMT

Hi ,

The following is the API definition:

LDD_TError CAN_SetAcceptanceMask(LDD_TDeviceData *DeviceDataPtr, LDD_CAN_TMBIndex BufferIdx, LDD_CAN_TAccMask AccMask);

and below is some description for parameters as well as the return value.

**	@param
**	DeviceDataPtr - Device data structure
**	pointer returned by [Init] method.
**	@param
**	BufferIdx	- Index for Acceptance Mask
**	Message Buffer.
**	@param
**	AccMask	- 11-bit Mask could be selected for
**	a standard frame or 29-bit for an extended
**	frame.
**	@return
**	- Error code, possible codes:
**	ERR_OK - OK
**	ERR_SPEED - This device does not work in
**	the active clock configuration
**	ERR_PARAM_RANGE - Value of buffer index is
**	out of range.
**	ERR_NOTAVAIL - Acceptance mask isn't
**	possible change when CAN component is
**	running, component must be disabled or
**	switched to freeze mode.

So maybe you call this API when CAN is running, please disable it or put it into freeze mode before calling this function.

Hope that helps,

B.R

Kan

李志權 — Mon, 23 Dec 2013 07:16:29 GMT

so,how to enter freeze mode and how to exit freeze mode?

Kan_Li — Mon, 23 Dec 2013 08:30:15 GMT

Hi,

You may use "CAN_SetOperationMode" to enter or exit the Freeze mode. Please kindly refer to the following for details.

Hope that helps,

B.R

Kan

李志權 — Wed, 25 Dec 2013 01:09:35 GMT

There are 2 a callback function

Can i give NULL for use CAN_SetOperationMode

Kan_Li — Wed, 25 Dec 2013 02:07:37 GMT

Yes, you can set them as NULL.

B.R

Kan