Hi I am trying to get an SD card hooked up to my nrf52840 devkit. I am using nRF Connect v2.6.1 and I was trying to get the sample code working, so I used the sample in ncs/v2.6.1/zephyr/subsys/fs/fs_sample
Unfortunately I get this error when trying to run the program
Here's a capture of what the signals look like talking to the SD card over SPI:
Oddly, the CS line is low during the initial "boot up" phase of the device; however, I thought that the CS line is supposed to be held at high voltage level during this initial boot-up? Even if it is used as active low in later communications (as defined here).
Here is my custom conf file which I've named "nrf52840dk_SDCard.conf"
Here is my board overlay file:
Here is my "prj.conf" file:
I'm not really sure what's going on here... I've tried this with 2 different SD cards as well. Is there a bug in Zephyr or am I missing something in my config...? I appreciate any help on what might be going wrong here.
Thank you,
Louis