I have 2 identical setups with an Orin NX in a custom carrier board. One is running the older Jetpack 5.2.1 and one on the latest 5 version. I am having issues with the I2C ports on the newer version.
I am getting tegra-i2c c240000.i2c: I2C transfer timed out warnings and i2cdetect is not working.
I know the hardware is correct since I can reflash both boards and then they both work on the old but never on the new one.
Both I2c device tree configs look exactly the same to me. So not sure why its not working.
I2c bus 2(pins 185-187) and 8(pins 189-191) are not working for me, 0 the internal one seems to be fine.
I have checked with a scope and bots SCL and SDA seem fine. Lines are high on both boards. On the working setup I can see the data come by but none on the new one.
The only additional thing I added in the new dtb is disabling sd card support sdhci@3400000 { status = "disabled"; }; But that doesnt have anything to do with I2C?
may I double confirm these release versions,
the latest JP-5 is JetPack 5.1.3/ l4t-r35.5.0
may I also confirm what’s the device you’re going to enable?
for instance, sdhc it looks you’re going to use mmc controller, and it should be SD-card, right?
may I double confirm these release versions,
the latest JP-5 is JetPack 5.1.3/ l4t-r35.5.0
Oh woeps yes. Latest I am using is 5.1.3 and the older one im using is 5.1
may I also confirm what’s the device you’re going to enable?
for instance, sdhc it looks you’re going to use mmc controller, and it should be SD-card, right?
We disabled the sd card emmc since we dont have this. Someone else made this change so I am going to revert it to check if I2c starts working again. Could this be the issue?