MSS: Failed to initialize SDRAM

[said4]

I am attempting to flash a Jetson Orin NX however it fails with a USB timeout error. After some investigation, the kernel logs show that it failed to initialize the SDRAM. I found a closed topic on this issue already, however it was not resolved (Cannot flash Orin NX, Failed to initialize SDRAM)

Like the person in the forum, I am on an Ubuntu 22.04 machine flashing a 5.1.3 Jetpack version. I haven’t had any issues flashing other Jetsons.

A few questions:

1. Is there a way for me to easily verify that the issue is hardware?
2. Is this a known issue for Orin NX?
3. If it is a know issue, will there be a patch/fix for this? If not, what is the likelihood of this issue on any given Orin NX modules?

failed_sdram_logs.txt (9.1 KB)

Thanks in advance.

[DavidDDD]

Hi,

Could you try to flash the latest JP version (JP 5.1.5) to cross check whether the issue exists?

Thanks

[said4]

Hi David,

I am using a custom carrier board (Forecr) and they don’t have JP 5.1.5 JP support (only up to 5.1.4 for 5.x). They do have support for JP 6.0, 6.1, and 6.2. I will give these a try and get back to you with what I find.

[said4]

Update: I attempted to flash JP 6.x but experienced the same issue.

[DavidDDD]

Hi,

Do you flash with JP 6.2 version?
If no, please try flash JP6.2 because it might be related to PCN.

Thanks

[said4]

I also tried with 6.2 but failed in the same way.

[DavidDDD]

Hi,

I see. Thank you for you feedback.
Some questions to confirm

• Is you orin nx using a dev kit or custom board?

If using custom board, please try to use the dev kit to cross check it.

Thanks

[said4]

Hi David,

Sorry for the late reply.

I am using a custom carrier board (Forecr). I am in contact with their support team as well.

An update on my end:

The SOM booted up normally today and was on for about 5 minutes. After the 5 minutes, it failed with the following error:

When it rebooted, it came up with the same SDRAM initialization error.

[kayccc]

Not sure if that’s board or module issue, you ,may try to get other device to test.