How to output a clock source for my peripheral?

felixch · April 26, 2020, 6:15am

Jetson nano has many clock sources. Most of them are dedicated.
Can I use GPIO01（Camera MCLK#2）, GPIO11(Camera MCLK#3) as custom clock source?
If so, how to configure the clock frequency?

Thanks for your help!!

Trumany · April 27, 2020, 6:11am

No, those pins can only be used as GPIO on nano.

felixch · April 27, 2020, 9:28am

Thank you!!

How about PWM port? Is it as a clock source by 50% duty setting?

ShaneCCC · April 28, 2020, 6:05pm

Have a check below link

github.com

NVIDIA/jetson-gpio/blob/master/README.md

# Jetson.GPIO - Linux for Tegra

Jetson TX1, TX2, AGX Xavier, and Nano development boards contain a 40 pin GPIO
header, similar to the 40 pin header in the Raspberry Pi. These GPIOs can be
controlled for digital input and output using the Python library provided in the
Jetson GPIO Library package. The library has the same API as the RPi.GPIO
library for Raspberry Pi in order to provide an easy way to move applications
running on the Raspberry Pi to the Jetson board.

This document walks through what is contained in The Jetson GPIO library
package, how to configure the system and run the provided sample applications,
and the library API.

# Package Components

In addition to this document, the Jetson GPIO library package contains the
following:

1. The `lib/python/` subdirectory contains the Python modules that implement all
library functionality. The gpio.py module is the main component that will be

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felixch · April 29, 2020, 1:25am

Ok, I’ll try to use PWM pin as a clock source for my peripheral.
Thanks a lot!