Pi Zero format boards that are supported.

I need to learn first how to use the serial console [on the Radxa],but don't give me the man pages. Try to share something else...
 

UART Serial Console | Radxa Docs

docs.radxa.com docs.radxa.com
connect your usb dev rx/tx and gnd to the board. gnd to gnd rx to tx and tx to rx
for the efi image speed is 115200
you use
cu -l /dev/cuaU0 -s 115200

DO NOT write the image to your current card because it will clobber your partition table and efi partition
write it to a new/spare card
boot will get stuck to the efi menu but it's enough for testing
 

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covacat said:

UART Serial Console | Radxa Docs

docs.radxa.com docs.radxa.com
connect your usb dev rx/tx and gnd to the board. gnd to gnd rx to tx and tx to rx
for the efi image speed is 115200
you use
cu -l /dev/cuaU0 -s 115200

DO NOT write the image to your current card because it will clobber your partition table and efi partition
write it to a new/spare card
boot will get stuck to the efi menu but it's enough for testing
Click to expand...

Negativo. I don't have the headers on top of the board and I don't have the cable.
 
covacat said:
you don't need the headers. just get male/female jumper wires and will mostly work
like B0DSZ7FD2V on amazon
Click to expand...

I already have them :

WhatsApp Image 2025-05-20 at 22.38.23.jpeg


WhatsApp Image 2025-05-20 at 22.38.10.jpeg


Should I solder them to the holes ?
 
covacat

Post in thread 'android tv/multimedia boxes'

disclaimer -- using such a device in this way will most likely void your warranty

ok, so i've got and android tv box based on allwinner h616 (https://www.geekbuying.com/item/H96-MAX-H616-Allwinner-H616-4GB-32GB-TV-Box-403753.html)
i hooked the serial uart like here
1687805396604.png

i started to hack support for it and i have clocks, gpio, usb, sd and e-mmc kind of working
i will try to add pmic axp805 and maybe ethernet support in the next days

there are 2 problems so far
1) you don't get an exact dtb for this kind of board so you need to merge various things you find on the net...
  • Thanks
 
Most all Arm boards with a 40-Pin GPIO header use the same exact pins for UART console. All the rock boards adhere to Pi layout.
Learn it and you will never be left in the dark.
Negative. TX/RX. all on the right side behind power pins.

Raspberry Pi GPIO Pinout

The comprehensive add-on boards & GPIO Pinout guide for the Raspberry Pi
pinout.xyz pinout.xyz
 
Don't give too much for granted that the other part understands on the fly what for you is natural. I made the screenshots of the 3 tools that I've bought to try to understand how they work together :

1) The final result :

rock5a-1000px-Serial-connection.webp



2) where should these wires be connected ?

Screenshot_2025-05-21_14-40-54.jpg


3) This board has one USB port. But I don't see the USB cable....I suppose that the USB cable should go from the board below to the Radxa board. I also see 6 pins...but I don't understand where they should be inserted....


Screenshot_2025-05-21_14-40-24.jpg


I don't understand one point : one side of the dupont wires should be connected to the 40 GPIO pins header...but the other side of those wires ? where should they go ?
 
You made life tough on yourself with that Serial Console Adapter. I like the FDTI name but you bought a module using dupont cables. It will work but you went the hard way.
You see the color of the wires here is essential. Black=Ground, Green=TX, White=RX.

But the adapters I like have a 6 pin header when only 3 pins are wanted.
So I rearrange the pinout and cut 3 connectors off header. My hack works on all Pi headers.
The original pinout worked on Beaglebone and Minnowboard.

TTL-232R-3V3 - FTDI

USB to UART cable Supports +3.3V UART signals
ftdichip.com ftdichip.com

Here are my serial console instructions.

Do ls /dev and take note of all ttyU* interfaces.
Plug in FDTI adapter.
Now look for the new ttyU interface in /dev.
You will use this interface to open a terminal program. Built into FreeBSD is cu

I know you don't read manuals but I have hope..

cu(1)

man.freebsd.org man.freebsd.org

You will use a command like this:
cu -s 1500000 -l /dev/ttyU0
Now hit the enter key several times.
 
----> You made life tough on yourself with that Serial Console Adapter. I like the FDTI name but you bought a module using dupont cables. It will work but you went the hard way.

1) It hasn't been my choice. The developer that I have hired told me to buy those tools. I can only trust him,since I don't have enough competences to understand what to buy by self only.

---> I know you don't read manuals but I have hope..

2) that's wrong. I don't read manual pages because I don't understand "una mazza" because the way they have been created. I only see a long list of arguments not correlated by each other by examples. No way to make something with those uncorrelated signs and too much short concepts for those people who don't have experience and solid basis. What I do to try to compensate the absence of the manual pages is to find easier to understand and focused and full of examples / short [video and-or textual] tutorials written by someone who is able to chew stuff that is indigestible for me.

---> https://man.freebsd.org/cgi/man.cgi?query=cu&sektion=1

3) Not useful for me for understanding what to do. I need a tutorial like that explained on point 2)
 
I am short on time but let me say this clearly.

Do NOT hook up any power wire from module to Zero3 UART pins,

That picture above looks good with black, green, white.. I usually cut off the power wire. You do not want to use it. It is 5V and will blow up the circuits.

With your dupont wires you want to tape together 3 pins to make a header. It makes it easier when using single wires.

Try and find 3 colors that match the original. That is why duponts suck. You cannot find those 3 colors together in strip. So you need to translate from dupont color to pinout.

Example
Orange = TX
Blue = RX
Black = Ground
 
ZioMario said:
.I suppose that the USB cable should go from the board below to the Radxa board.
Click to expand...
Are you sent from another planet to destroy me or are you AI bot?

The USB goes to your host computer. Radxa is the guest. The serial wires go to radxa.
 
Phishfry said:
Are you sent from another planet to destroy me or are you AI bot ?
Click to expand...

If I ask you a video tutorial,there is a reason. What I see is only a lot of experienced users like you who does not understand the difficulties of the users who ask some help and they continue to give always more and more advanced tutorials. You have to think that you have to learn what to do to some kind of child.
 
ZioMario

Post in thread 'Pi Zero format boards that are supported.'

Its the time to learn something new. How to debug the error messages via Serial Console. So. I've bought this stuff :

1) This adapter, with FTDI:

https://www.amazon.it/APKLVSR-FT232RL-Adattatore-Convertitore-seriale/dp/B0CFFCLF6X

2) Headers + cables:

https://www.amazon.it/Heevhas-collegamento-ponticello-maglioni-maschio/dp/B09JYRKFNV

Now,a video tutorial that explains what should I connect to what is appreciated :D

Point 1) is not like your ?
 
mostly the same but it needs another usb a<=>b cable
mine plugs directly into an usb a female port (like all/most pcs have)
here is a video
View: https://www.youtube.com/watch?v=uSuFVntxRg0

video shows it for windows / putty
but the basics are very easy. connect ground to ground on usb dev / board and rx to tx and tx to rx. do not connect other pins.
use a terminal emulator on the serial port created by the usb device.
use @BAUDRADE,8,n,1 (8 data bit, no parity, 1 stop bit), flow control disabled
BAUDRADE depends from board to board and other stuff and can be 9600, 115200, 1500000, etc.
for these EFI images is 115200. otherwise u-boot default to 1500000 on rockchip boards
 
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