S32KのトピックRe: S32K342 LPSPI Async Transmit for 64 Byte frames having issues

S32K342 LPSPI Async Transmit for 64 Byte frames having issues

bbaskii — Wed, 21 Jun 2023 18:07:41 GMT

Hi NXP Team,

I am using LPSPI3 in S32K342 and my requirement is sending 64 byte frame at once using AsyncTransmit and interrupt enabled. I am facing issue with loss of data exactly at 12th frame which contains CRC information in the frame sequence. Because of that the slave is not processing the frame and getting error. Kindly help me to fix the issue.

Thanks In advance,

bbaskii

Re: S32K342 LPSPI Async Transmit for 64 Byte frames having issues

danielmartynek — Fri, 23 Jun 2023 11:53:19 GMT

Hi @bbaskii,

Can you share the project.

If you don't want to post it here, you can create a ticket.

Do you monitor the bus with an oscilloscope?

How is the frame corrected on the bus?

Thank you,

BR, Daniel

Re: S32K342 LPSPI Async Transmit for 64 Byte frames having issues

bbaskii — Mon, 26 Jun 2023 11:11:21 GMT

Hi Daniel,

I have created a ticket and uploaded the project which i am using it for testing. Please help me to fix the problem. Thanks, bbaskii

Re: S32K342 LPSPI Async Transmit for 64 Byte frames having issues

danielmartynek — Tue, 27 Jun 2023 10:09:52 GMT

Hi @bbaskii, I see, thank you