S32K144 TXERRCNT and RXERRCNT

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S32K144 TXERRCNT and RXERRCNT

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Beautr
Contributor I

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

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Senlent
NXP TechSupport
NXP TechSupport

Hi@Beautr

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

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Beautr
Contributor I

When will the S32K144 go into freeze mode?

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1,048 Views
Senlent
NXP TechSupport
NXP TechSupport

Hi@Beautr

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.

 

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1,042 Views
Beautr
Contributor I

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?

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1,023 Views
Senlent
NXP TechSupport
NXP TechSupport

Hi@Beautr

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

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