Using SPI

• CH

  Cassandra Huff

  5/23/25, 5:41 PM

  Hi,

  I am very new to working with embedded devices, but I am trying to communicate with a device connected to the SPI1 header pins on the Amston Lake board. I am able to see in the kernel that SPI1 is there and I am able to see that there is a driver for the spidev but the there is no /dev/spidev or dev/bus/spidev. I've been going a bit in circles on how to be able to write to SPI1. I was also going to try to use the mraa repository in case I don't have to mess with these lower level settings but I'm getting errors while trying to install it. Help! Thanks!

  Best,

  Cassandra

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• VB

  Vanessa Beach

  6/12/25, 4:08 AM

  It's frustrating when hardware setup becomes a roadblock. While using pre-built libraries like mraa can simplify things, addressing the missing /dev/spidev is key. Have you confirmed SPI1 is enabled in your device tree overlay or kernel configuration? Properly enabling SPI through those channels often resolves the device node issue.

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