SPI Communication broken after "apt-get update"

Autonomous Machines Jetson & Embedded Systems Jetson Orin Nano
1

Hi!
As the title suggests, SPI communication was working fine on the Orin Nano (enabled using Jetson-IO). After a apt-get upgrade and apt-get update, a loopback test (using spidev_test) returns only 0s, indicating SPI is not setup correctly.
Any help is appreciated.
Thanks

3

Hi kkuvalek,

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

Please share the result of the following command on your board.

$ cat /etc/nv_tegra_release
$ cat /etc/nv_boot_control.conf
4
  1. It is the devkit.
  2. Jetpack Version: L4t 5.1.3 35.5.0
nathanis@mmHipExoOrinNano:~$ cat /etc/nv_tegra_release
# R35 (release), REVISION: 5.0, GCID: 35550185, BOARD: t186ref, EABI: aarch64, DATE: Tue Feb 20 04:46:31 UTC 2024
nathanis@mmHipExoOrinNano:~$ cat /etc/nv_boot_control.conf
TNSPEC 3767-300-0005-K.2-1-0-jetson-orin-nano-devkit-
COMPATIBLE_SPEC 3767--0005--1--jetson-orin-nano-devkit-
TEGRA_LEGACY_UPDATE false
TEGRA_BOOT_STORAGE mmcblk1
TEGRA_EMMC_ONLY false
TEGRA_CHIPID 0x23
TEGRA_OTA_BOOT_DEVICE /dev/mtdblock0
TEGRA_OTA_GPT_DEVICE /dev/mtdblock0

This is the output for the commands you provided.

5

Is this still an issue to support? Any result can be shared?

1 Like
6

The issue is solved. Thank you. Re-flashed the Orin Nano, and set up SPI again, it started to work.

8

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