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In SPI slave, the data I set and the actual data to be transmitted are different when 12V power is applied.

Question asked by Byungju Kim on Aug 30, 2018
Latest reply on Sep 3, 2018 by Byungju Kim

Hi,

 

I use S32K144EVB, S32DS for ARM.2018.R1 and SDK EAR0.8.6.

 

In LPSPI slave, the data I set and the actual data to be transmitted are different when 12V power is applied.

But the datas are same when usb power is applied.

Please let me know how do I resolve it?

 

- 12V POWER : The datas are different -

Green : MISO

 

- USB POWER : The datas are same -

Green : MISO

Thanks and best regards,

Byungju.

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