Hello, I am trying to use a Udoo quad for a project that will involve communicating to 2 separate peripherals that each use the SPI bus. I would like to communicate with these peripherals on separate SPI buses if possible. After looking at the pin out diagram for the Udoo quad there appears to be SPI1, SPI2 and SPI5 buses. I am looking for any examples or explanations regarding how to use these SPI buses. I am not sure I fully understand the architecture of the three SPI buses between the Arduino and Linux processors on the Udoo board as well. Thank you.
Have you checked if in the external pinout there are the SPI you need? http://www.udoo.org/docs/Hardware & Accessories/UDOO_GPIO_Pinout
