Unable to get SPI Master and Slave devices on Jetson GPIO

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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18

I just notice that you are using AGX Orin devkit rather than Orin Nano devkit.
As a result, the PIN37/PIN18/PIN22/PIN13 are not the pins for SPI3.
For AGX Orin, you should refer to the following figure for the pins used on 40-pins header.

image
image1020Ɨ1345 140 KB

There seems only one SPI interface available on 40-pins header.
Do you have another devkit so that you can use one as SPI master and another as SPI slave?