Kinetis MicrocontrollersのトピックRe: FlexCAN example code on K60/K20

FlexCAN example code on K60/K20

pramodtm-b46240 — Fri, 12 Dec 2014 13:59:00 GMT

Hi all,

I have been looking for FlexCAN example code on K series(for TWR-K60D100M/K20D72M in particular). I found the one with the loopback mode in CW installation directory. Tried converting it into interboard communication using TWR-SER and some modifications in the example code. But I'm not getting the interrupts at all.

So, Can anybody share the code(non loopback) for FlexCAN?

Thanks,

pramod

Re: FlexCAN example code on K60/K20

mjbcswitzerland — Fri, 12 Dec 2014 16:25:46 GMT

See

http://www.utasker.com/docs/uTasker/uTaskerCAN.PDF

https://www.youtube.com/watch?v=Ha8cv_XEvco

Regards

Mark

http://www.utasker.com/kinetis.html

Re: FlexCAN example code on K60/K20

pramodtm-b46240 — Tue, 16 Dec 2014 13:49:16 GMT

Hello Mark,

Thank you. The document you shared is helping me in understanding the concept well.

While going through the RM of K60, in FlexCAN chapter terminologies called mailbox and message buffer are used. I'm a little confused here. Are they same? and can be interchangeabe? Or mailboxes are completely different from message buffers?

Thanks

Re: FlexCAN example code on K60/K20

mjbcswitzerland — Tue, 16 Dec 2014 18:04:37 GMT

See Mailboxes and Buffers from flexcan example

The FlexCAN in teh Coldfire is teh same as the one in the Kinetis.

Regards

Mark

Re: FlexCAN example code on K60/K20

pramodtm-b46240 — Wed, 17 Dec 2014 10:28:24 GMT

Hi Mark,

Thanks for redirecting. From what I get now, Message buffer is a part of HW. Mailbox is the software side buffer implemented in the CAN driver.

Based on the mask filter for individual mailbox, the message is recieved/rejected from the message buffer.

Regards,

Pramod