How to generating PWM on Jetson AGX

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

Hi,

I would like to generate 40MHz clock from the Jetson AGX PWM.
I haven’t found a proper tutorial for configuring the pinmux fot PWM, nor setting the PWM configuration.

I tried to follow the following:
https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3243/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fhw_setup_jetson_io.html

But “sudo /opt/nvidia/jetson-io/jetson-io.py” doesn’t launch the application.

Thanks,
Ron

3

hello ron.persky,

is there any failure logs for reference?
please check $ dmesg or $ cat /var/log/syslog.

4

Hi Jerry,

I succeeded changing the PinMux by changing Jetson_AGX_Xavier_Series_Pinmux_Configuration_Template.xlsm and running pinmux-dts2cfg.py
I now have an updated tegra19x-mb1-pinmux-p2888-0000-a04-p2822-0000-b01.cfg file under /Xavier/L4T-bsp/bootloader

How can I flash the bootloader only ?

5

hello ron.persky,

it’s board configuration file to apply pinmux settings, please full-flash the target, you cannot update that individually.

7

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