Steps to enable SPI interface on AGX Xavier

[anandprakaas]

I did the pinmux configuration for the SPI1 device. What are the steps to create the corresponding device tree file? Should that be done on host machine or target Nvidia device?

I found this post to modify the device tree

ADC using SPI on Xavier

Hi guys, I connected the ADC (MCP3208) to the Expansion Header (SPI1_MOSI(19), SPI1_MISO(21), SPI1_SCK(23) and SP1_CS0(24)) and tried to read the value of the potentiometer. However, the output result was 0.0V. With the help of various people, I enabled SPI1 of Xavier. I maked spidev1.0 occurred at /dev/ directory . However, when running the following program, the value will be 0.0 V. import spidev Vref = 3.3 ch0 = [0x06,0x00,0x00] spi = spidev.SpiDev() spi.open(1,0) #spi1.0 spi.max_speed…