CANFD cannot enter receive interrupt

[hangli1]

Hello, I am using S32K344 to configure canfd, but it is found that it cannot receive can frames during use, so I cannot check what my problem is, hope I can get help

[Julián_AragónM]

Hi @hangli1,

You can use these community posts as reference:

• Solved: How to use FlexCAN_Ip in S32K344 - NXP Community
• Example S32K344 FlexCAN_Ip TX/RX/EnhanceRXFIFO test S32DS3.4 RTD200 - NXP Community

Best regards,
Julián

[hangli1]

Thanks for your reply. I think I have found the cause of the problem

[hangli1]

Thank you for your reply, but I still have the same problem when I use demo, and the development board still can't observe the CAN data frame from PC through PE. I don't know if there is a problem with my use method or something else, please help me test whether there is any problem with my program, thank you

[anderrisen44]

Ensure the CAN FD configuration settings match between the sender and receiver, including bitrate, timing, and protocol. Double-check hardware connections and consider debugging with diagnostic tools to pinpoint the issue.

[hangli1]

Thank you for your reply, but now it can be normally sent to PC. pc receives CAN frames from the development board, but the development board cannot receive messages from PC