Can't complete the installation of Debian for the DB410c

Products Support DragonBoard410c
#1

Hi, I recently got a DB410c with Android pre-installed, and I am following the steps listed here in order to install Debian using an SD card: Windows Host Installation for DragonBoard-410c - 96Boards

But I am stuck in the step 7. When someone plugs the power adaptor into DB410c, it seems like the board needs to boot up and a screen needs to be displayed in the monitor to continue with the installation. But when I plug the power adaptor, I wait some time but nothing appears on the screen (I am using a TV actually instead of a PC monitor). The user LED 1 is blinking like a heartbeat, and the BT LED is permanent on.

If someone could help me, I would appreciate that. Thank you. :slight_smile:

#2

It would be useful to get kernel messages via serial output to see what happens (e.g. via the uart or sensor mezzanine). If possible I would also suggest to try with a different monitor just in case issue is related to the TV.

#3

Thanks for the advice, but how can I get those kernel messages to read them in a terminal in my computer? I am trying to use a USB to Serial/TTL adapter to do this, but I am not sure how to do it. Do I need to connect in someway the adapter to the UART1 TX and UART1 RX of the DB? Does it affect that the output of these pins are 1.8V?

#4

You’re adapter needs to support 1.8V I/O levels, then you need to connect it to board UART1 RX/TX and GND, respectively pin 11/13/1 of the low speed interface [1]. Then use a tool like microcom or putty (on Windows) to get interface with the serial port (at 115200baud): Setting Up the UART console for DragonBoard-410c - 96Boards

[1] 96Boards GPIO Pinout