Configure dedicated interface pins (I2C,I2S,SPI, etc.) to general IO pin

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin NX
, , ,
1

Hi,

Is it possible to reassign dedicated interface pins—such as I2C, SPI, or UART—to general-purpose I/O (GPIO) pins by modifying the pinmux configuration?

Thanks.

3

Hi rvn,

Sure, you can use those pins as GPIO through configuring the pinmux spreadsheet.
Please just confirm that they are not used by other driver.

Are you using the devkit or custom board for Orin NX?
What’s the Jetpack version in use?

4

Thanks.

It will be for a custom carrier board (still in design).
Jetpack version will be at least 6.2.

5

got it, please configure the pinmux spreadsheet for the pin configuration according to your design.
You can refer to Generating the Pinmux dtsi Files for details.