topic Re: Not enter CAN error callback function in S32K

Not enter CAN error callback function

LJS10045 — Thu, 22 Feb 2024 07:48:24 GMT

I'm using S32DS 3.5 with RTD 4.0, chip is S32K311.

I already install CAN0_ORED_IRQHandler and create an error callback function.

But I found that when I disconnect to CAN BUS, it didn't enter error callback function.

Does anyone encounter this problem, how can I solve it?

Re: Not enter CAN error callback function

PetrS — Thu, 22 Feb 2024 11:38:20 GMT

Hi,

what error condition have you tested? Try to e.g. send a message, with bus disconnected you should get ACK error and if all is configured well callback should be entered.

BR, Petr

Re: Not enter CAN error callback function

LJS10045 — Fri, 23 Feb 2024 00:29:23 GMT

Hi @PetrS

I tried to send can message with disconnect to bus.

It's status return FLEXCAN_STATUS_BUSY, I don't know that if it will enter the ERROR Callback or not?

Re: Not enter CAN error callback function

PetrS — Tue, 05 Mar 2024 07:55:29 GMT

Hi,

yes, with FlexCAN connected to terminated CAN transceiver but disconnected from CAN bus after sending message you should get ACK error, thus callback should be called. Checking MB status will return FLEXCAN_STATUS_BUSY as message was not transmitted without error.

BR, Petr