How to fix "Failed to extract /boot/tegra194-p3668-all-p3509-0000-hdr40.dtbo to | | jetson-io-overlay.dts!"

I enabled the 3 pins with pwm function by using " sudo /opt/nvidia/jetson-io/", and then might export to something like overlay choice. Once I rerun, the following error occurred:
Failed to extract /boot/tegra194-p3668-all-p3509-0000-hdr40.dtbo to | | jetson-io-overlay.dts!

Could you help me fix this error? Thanks.
(Jetson Xavier NX 16GB)

hello Shepherd-Simple,

what three pins you’re used for testing?
had you try to update pinmux configurations to config them as PWMs?

pwm1(pin33) pwm4(15) and pwm8(32)

And I also tried on another Xavier NX module, after I save pin changes with, fatal error occurred. Then cannot work anymore and crash in splash screen.

I only config the three pwm pins by sudo

  1. sudo /opt/nvidia/jetson-io/
  2. Configure Jetson 40pin Header
  3. Configure header pins manually
  4. Choose pwm1 pwm4 pwm8
  5. Save pin changes and reboot

Did I miss any operations?

we would like to check this locally, please also check $ cat /etc/nv_tegra_release for your L4T release version.

R32 (release), REVISION: 7.2, GCID: 30192233
BOARD: t186ref EABI: aarch64, DATE: Sun Apr17 09:53:50 UTC 2022

hello Shepherd-Simple,

is this a developer kit? we cannot reproduce this issue locally.

Hello, JerryChang

We use customized baseboard.

hello Shepherd-Simple,

this Jetson-IO is a python script that runs on a Jetson developer kit.
please check Jetson Xavier NX Series Adaptation and Bring-Up since you’re using a customize board.

Hello, JerryChang

Could you please provide the busybox cmd to set pin 15 (GPIO12) as PWM similar to the following?

# Set BOARD pin 32 as mux function PWM (func 1):
# busybox devmem 0x2430040 32 0x401
# Set BOARD pin 33 as mux function PWM (func 2):
# busybox devmem 0x2440020 32 0x402

hello Shepherd-Simple,

GPIO12 this pin is by default configure as GPIO3_PCC.04, so, you need to have pinmux configuration to toggle the customer usage to update this pin as PWM.

Thanks, JerryChang
May I ask why GPIO07 is also by default configured as GPIO3_PR.00, but can be set by using busybox devmem 0x2430040 32 0x401?
Moreover, could you please provide detailed steps for configuring pinmux?

please refer to developer guide, Pinmux Changes.

Hello, May I ask why GPIO07 is also by default configured as GPIO3_PR.00 , but can be set by using busybox devmem 0x2430040 32 0x401 ?

hello Shepherd-Simple,

maybe you toggle the pin wrong address? please check pinmux cfg for pin define address.

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