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The issue with SPI function of MC9S12ZVMBA48.

Question asked by Kyungwoo Min on Sep 22, 2019
Latest reply on Oct 10, 2019 by Kyungwoo Min


I have a question about the SPI feature of the MC9S12ZVMBA48.

I think I set SPI correctly, but it doesn't do anything at all.


The basis for this is that no signal comes out of the SCK.

I set the MCU as Master of SPI. And I know that when I enter data, the clock comes out on SCK pin by default. However, no clock came out.


There is nothing about the SPI pin in the Module Routing Register.
What should I do?


Please review the workspace I attached.



Kyungwoo Min.