topic s32k flexcan failed in S32K

s32k flexcan failed

bjs — Wed, 13 Sep 2023 17:29:01 GMT

I am working on flexcan hscan mode with s32k118evb.

I created a demo project based on can_pal_s32k118 and it worked well. But after I add the hscan code to a FreeRTOS based application the CAN interface doesn't work. The result from CAN_GetTransferStatus is always STATUS_BUSY.

Is this issue related to FreeRTOS? Please help it's for a production project.

Regard,

Bruce

Re: s32k flexcan failed

PetrS — Thu, 14 Sep 2023 13:43:40 GMT

Hi,

probably driver interrupt is not called prperly to update sattus variable, or frame is not send/received without error at all. Can you share your project?
BTW; some is posted at https://community.nxp.com/t5/S32K/Flexcan-porting-to-FreeRTOS/m-p/827465

BR, Petr

Re: s32k flexcan failed

bjs — Thu, 14 Sep 2023 14:21:00 GMT

I sent you the source code.

I'll try the the method mentioned from above link and let you know the result.

Regards,

Bruce

Re: s32k flexcan failed

PetrS — Fri, 15 Sep 2023 12:27:55 GMT

Hi,

I did not try your code on EVB yet, but seems you are calling HSCan_Init twice, first in prvSetupHardware then in rtos_start as well.
Also you should increase heap in Freertos setting, I think.

BR, Petr