VIM3 UART supporting on various distributions

VIM3
1

Hello,
I’m back to my previous question about uart support on Khadas vim3:

The vim3-ubuntu-20.04-server-linux-4.9-fenix-1.4-221229-emmc.raw.img
good working firmware (it supports uart and TS050 display), but very old.

More fresh version ubuntu server 22.04 does not support
neither uart nor display unfortunately.

I’m using first (ubuntu server 20.04 fenix 1.4) and testing iperf3 upd throughput.
During the test (udp 956 Mbit/s download) if I try to connect to vim3 by SSH
(with this firmware) I have lost 1% udp datagramms,
without ssh connecting to my vim3
no datagramm lost.

For example, on Armbian (Ubuntu server 24.04 (Noble))
there are no such loss datagramm.
But Armbian does not support UART! I need working UART on vim3.

Has anyone tried to enable UART support in other distributions
(via Device Tree Overlay) on Khadas VIM?
Any information about this is welcome :slight_smile: Сan you help to enable support
of uart on Armbian, for example?

Thank you.

2

@sergetsp have you tried the latest vendor firmware?
https://dl.khadas.com/products/vim3/firmware/ubuntu/generic/vim3-ubuntu-24.04-server-linux-5.15-fenix-1.6.9-240618.img.xz

It.will support uart and ts050

3

Thank you very much,
uart (on ttyS3 is working) on

# uname -a
Linux Khadas 5.15.119 #1.6.9.1 SMP PREEMPT Thu Jun 20 09:22:43 CST 2024 aarch64 aarch64 aarch64 GNU/Linux

# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 24.04 LTS
Release:        24.04
Codename:       noble
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