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September 17, 2026
Question

nucleo_c5a3zg sdhc sample from zephyr not working

  • September 17, 2026
  • 0 replies
  • 16 views

Greetings,

I am working with nucleo_c5a3zg board and I am using zephyr RTOS for my project. I wanted to interface the sd card and try to do some data logging. I had a adafruit data logger shield which can fit on nucleo_c5a3zg board and there is a shield support in zephyr. 

When i build and uploaded the code i am getting a error that CMD8 is not supported. During debugging i found out that there is no state change on MISO line. Just to check if my code is wrong i tried same code with nucleo_f446re board and it works fine.

Following is the capture from saleae loggic for necleo_c5a3zg board. I can provide other details like code, .dts file, etc.

If someone can help me solve this issue it would be much appreciated.