SPI CS and SCK wrong

[dlysam2716]

In SPI, I think SCK work after CS has low vol. But in my test with MK10FN1M0VLQ12 to slave isl78600 , SCK always work after one CS finish.  I don't know why.

I'm not sure if Oscilloscope set wrong or not. I think it is SPIclock problem, but I adjust many times, and always wrong.  Could you help me to test it or give me some advice, let me know how to solve it? Thank you!

[Alexis_A]

Dear Yu-Jung,

I will suggest to check in the following link, there's a package code of baremetal examples, check the dspi example, maybe you're missing some pin configuration:

https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/kinetis-c...

Best Regards,

Alexis Andalon