GPIO Communication Nvidia Jetson TX2

Hello, I am a High School robotics student, I purchased a Nvidia Jetson TX2 for a autonomous RC truck project. I cannot seem to get GPIO to work. I’ve only found ways to get it to work on the Tx1 but nothing for the TX2. If anyone has any information it would be greatly appreciated.

hello vanced20,

please refer to this pinmux spreadsheet, http://developer.nvidia.com/embedded/dlc/jetson-tx2-module-pinmux

also, are you able to control GPIO pins manually following below steps?
take gpio220 for example,

Location of the GPIOs
/sys/class/gpio
Generate gpio220 name
echo 220 > export
Enable the gpio
echo out > direction && echo 1 > value

Thank you for the response.
Is there a graph or chart I can use to refer to to find out what pin gpio220 maps to? If that info is included in the spreadsheet you linked to then I apologize because it must be over my head. I have looked at the chart included on Jetsonhacks.com (http://www.jetsonhacks.com/nvidia-jetson-tx2-j21-header-pinout/) but it does not name all of the pins and I have heard questions on the acuracy of the labels used in that chart. Again, any help is greatly appreciated.

hello vanced20,

Is there a graph or chart I can use to refer to to find out what pin gpio220 maps to?
please check [Release 28.1 Development Guide]-> [Tegra Linux Driver Package TX2 Adaptation Guide]-> [GPIO Changes]

the link you share only included TX2 J21 Header Pinout, please check spreadsheet for all of them.
thanks