MPC5xxx中的主题 Re: Can interface for Pre transmit callback

Can interface for Pre transmit callback

karthikravi — Mon, 23 Jan 2023 15:36:09 GMT

Team,

I am using MPC57xx with S32 design studio. Need to know whether FlexCAN supports PreTransmit callback ? if so what is the interface?

If it doesn't support, provide a suggestion how to inject CRC error during transmit.

Re: Can interface for Pre transmit callback

PetrS — Tue, 24 Jan 2023 09:09:19 GMT

Hi,

the MB interrupt (and so respective callback), if enabled, is called upon successful reception of the message into the MB or after successful transmission of the message without error. So no pre transmit callback can be possible.

There is no option to inject CRC error within FlexCAN module, you can e.g. purchase a commercial CAN development tool. Some can controllably inject errors.

BR, Petr

Re: Can interface for Pre transmit callback

karthikravi — Tue, 07 Feb 2023 11:06:05 GMT

@PetrS you mentioned about commercial CAN development tool, can you provide any example? I assumed you mean CAN stacks which supports CRC error injection. please confirm

Re: Can interface for Pre transmit callback

PetrS — Wed, 08 Feb 2023 09:43:50 GMT

Hi,

I meant CAN tools like Vector's CANoe, PCAN View etc.

BR, Petr