TE0703 + TE0820 Boot Issue

[Remi]

I am currently working with the TE0703 carrier board and TE0820-04-3BE21MA module, attempting to boot from an SD card.

Steps I have taken so far:

I downloaded the prebuilt ZIP folder from the following link:
Trenz Reference Design 2024.2

Inside the downloaded folder, I navigated to:
prebuilt → boot_images or OS or hardware → 3eg_1e_2Gb (since I have the TE0820-04-3BE21MA).

I copied the necessary boot-related files onto a FAT32 partition on my SD card.

I ensured that the DIP switches were correctly set for SD card boot mode.

I connected the TE0703 to my PC via a Micro-USB to USB cable and opened a serial terminal (PuTTY/Minicom).

Observed Behavior:

No output appears on the serial terminal.

LED D1 and D3 remain red.

LED D2 (green) blinks intermittently instead of staying continuously lit, which I understand should indicate a successful boot.

The Ethernet LEDs are continuously orange, suggesting that the DIP switches are correctly configured.

Is there any step I might have missed? Could you provide any guidance or documentation to help troubleshoot this issue?

Thanks a lot for any helps , ( i'm a beginner in Trenz board )

[Antti Lukats]

Answered in suppport email.