@KevinFFF Hello All, 2 days ago I had problem with controlling a gpio in 40 pins header and after I fixed this issue with @KevinFFF by updating to R36.5 now I am facing a new issue that the UART in 40 pins header is not working anymore. After many hours I discoverer the UART works in loopback but…

[image] tahaalars94: I tried to use /dev/ttyTCU0 and it worked fine with my flight controller It is not the expected result to me as ttyTCU0 is the debug UART port which should be used as debug console/logs only. [image] tahaalars94: now I am facing a new issue that the UART in 40 pins h…

Hello @KevinFFF It is not the expected result to me as ttyTCU0 is the debug UART port which should be used as debug console/logs only. I have stopped the services of this uart so it does not send any debug info anymore and I am using it as communicate normal protocol since a while and it works f…

@KevinFFF I have flashed new jetpack 6.2.2 and the same problem still exist, I used the SDKmanager for all the steps. Please, I need urgent support it has been 3 days many many hours wasted without any solution, I hope you can advice me with a solution.

[image] tahaalars94: the dmesg gives you a clear idea, at the end of the file you find the UART missing packages What do you mean about “the UART missing packages” in dmesg? [ 2.164436] 3100000.serial: ttyTHS1 at MMIO 0x3100000 (irq = 112, base_baud = 0) is a TEGRA_UART From the dmesg, U…

Sorry, I waited for so long and I got tired of trying things. I had to do progress so I went back to R36.4 and I applied the patch for GPIO. So, my system is stable. You can close this thread without solution.

Okay, please let me know if you want to further debug the issue with R36.5.

After update to R36.5, the gpio is fixed but uart in ttyTHS1 is not working in jetson orin nano baord

Robotics & Edge Computing Jetson Systems Jetson Orin Nano

KevinFFF March 19, 2026, 6:57am 11

Hi tahaalars94,

I have found the root cause of your UART issue after updating to r36.5.
Please refer to the following thread for the fix.
Solved: UART/Serial Port not working after upgradint to Jetpack 6.2.2 (Orin Nano/NX) - #7 by KevinFFF

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After update to R36.5, the gpio is fixed but uart in ttyTHS1 is not working in jetson orin nano baord

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