SPI00 on the nRF54L15 cannot operate at 32 MHz.

[HauJohn]

I'm trying to run the 32 MHz SPI00 on the nRF54L15DK to communicate with the MX25R64 flash. However, the clock signal I'm measuring is limited to 8 MHz. Do you have any ideas why this might be happening?

Here is my configuration:

I read the datasheet and found that the Extra High Drive mode needs to be enabled, but it still doesn't work.

[khelmutlord]

Could you share what sample rate you are using on your logic analyzer? When I measured at 100MHz w/ the changes you made above I was able to measure 32MHz clock rate using the "flash_shell" sample docs.zephyrproject.org/.../README.html

[HauJohn]

The problem is my logic analyzer. Thank you very much.