@dc42 Where is that header file located in the git repo? I would like to take a look.

@dc42 So if we did want to do that then we could write our own firmware change to allow the detect functionality?

@dc42 I will be powering the SD card with 3.3V, so I don't think I'd need to use the 5V pin. Also, I am assuming the duet uses SPI based off the pin names.

@dc42 So in the event I'm using 5V for VCC, the extra pin on the Conn_SD board (since the SD card only needs nine pins) would be the 3.3V?

Hi all,
Here's my problem:
I'm making a PCB that includes an SD card reader (not microSD) that I plan to connect to the Conn_SD using a 10 pin ribbon wire. I have outlined the specific connection on the duet schematic in green for clarity.

Now the reader I plan to use has two additional switches on it: a write protect switch and a detect switch. This picture shows the reader component's PCB pattern. I outlined solder paste locations in gold, and the switches in question in red.

I'm wondering if the duet needs me to connect either of these switches to a specific pin from the Conn_SD pin array in order for the duet to read/write to the SD. Can I ignore the switches and just worry about tracing the 9 SD pins? Or do I connect VCC to the detect switch and just leave it high?

Any assistance would be appreciated, thanks.