AON GPIO

Hello team,

We are planning to use the Jetson Orin Nano SoM in our design and require few AON capable GPIOs for timestamping functionality.

As per my understanding, out of the 15 user accessible GPIOs provided by Orin Nano SoM (GPIO0 to GPIO14), only 5 GPIOs support AON capabilities: GPIO03, GPIO04, GPIO05, GPIO06 & GPIO10.

Kindly let me know if this is correct or am I missing something.

Hi rutvik.naik,

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

How many GPIOs you need for the timestamp use case?

Hello Kevin,

We are using custom board for Orin Nano. The Jetpack version we will be using is 6.2.

We are required to have a minimum 5 GPIOs that can support AON for timestamping functionality.

Please refer to Generic Timestamp Engine — NVIDIA Jetson Linux Developer Guide for this use case.

All AON GPIOs could support for timestamp.

These 5 pins are AON GPIO.
Other than that, I2C0_SCL can also be used as AON GPIO (i.e. if you configure it as PCC.07)

.