S32KのトピックRe: S32K144 TXERRCNT and RXERRCNT

S32K144 TXERRCNT and RXERRCNT

Beautr — Wed, 05 Jul 2023 03:51:11 GMT

Do the TXERRCNT and RXERRCNT of the S32K144 CAN controller count automatically? Do we need code for any Settings?

Beautr — Wed, 05 Jul 2023 05:38:11 GMT

When will the S32K144 go into freeze mode?

Senlent — Wed, 05 Jul 2023 08:40:54 GMT

For flexcan module, lot of registers can only be read/write on Freeze mode.

for example,

Senlent_0-1688546112957.png

Therefore, if you need to change the Flexcan reigster during normal operation, you should first see if you need to go into freeze mode.

Beautr — Wed, 05 Jul 2023 13:45:28 GMT

Hi, Senlent

Thank you for your reply. I have one more question.

Are send and receive error counters automatically counted according to CAN2.0B specifications? Do we need code for any Settings？

Senlent — Thu, 06 Jul 2023 01:34:04 GMT

No, the count is automatically incremented if an error is encountered during normal operation