I check the DTB in the Orin NX (tegra234-p3767-0000-p3768-0000-a0.dtb) and I compared with a reference image from the Orin Nano Dev kit and I don’t see any difference, so I don’t understand what I need to modify to access the make ina3221 to work. Any suggestion why?. The system is flash with 35.4.
It seems ina3221 is probed failed.
Is this issue specific to the custom carrier board?
Or you could put the Orin NX module on the Orin Nano devkit(p3767) board?
Correct, this same SoM in the devkit carrier board works. This is a custom carrier board that we build and we use the custom Pimux excel to generate the DTSI and we use that to flash the device with Jetson Linux 34.4. So I think the only main difference in in there.
Correct the version is a typo is etson Linux 35.4.1. I will try direclty with Linux 35.5.0.
Regarding the I2C, in theory is connected in similar way to the dev kit (similar path and ICs).
My situation is exactly as this post. That I put at the start. But in that post the solution is not clear.
I will try with Linux 35.5.0. and I will report.
@ivanrodriguezferrandez I have figured out that setting any different value to pins shown in the photo below causes voltage/current monitoring to break.
Setting these pins back to default value brought back voltage and current monitoring on my Orin NX modules with L4T 35.4.1.