@ShaneCCC Thank you for your reply, it is very useful.
I still have some issues:
I wrote a code on an arduino uno to test the SPI communication with the Jetson Nano and connected it to the Jetson SPI1 (pins 19 to 24).
On the Nano, I pip installed the library, then tried the code on the website:
spi = spidev.SpiDev()
spi.open(1,0) I tried both (1,0) and (0,0)
x = [10,10,10,1,1,1,1,1,1]
But the arduino uno never received any of the data. Also the arduino was sending some data to the Nano, but the Nano was always reading 0. I tried setting the arduino as slave and I tried it as master. Didn’t make any changes.
Any idea what I could be missing?
Thanks for your help!