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#1
New Products release / New Product in stock: HEATSINK...
Last post by olimex - Today at 11:06:21 AMCustom Heatsink for Our Open Source Hardware Industrial Grade iMX8MPlus SOM Modules https://olimex.wordpress.com/2026/07/30/new-product-in-stock-heatsink-imx8mp-custom-heatsink-for-our-open-source-hardware-industrial-grade-imx8mplus-som-modules/ #nxp #imx8 #imx8mp #som #industrial #linux #computer #debian
#2
A20 / Re: My Micro won't boot from M...
Last post by LubOlimex - Today at 09:03:17 AMHello,
Glad the issue was resolved. About your questions:
- 5V adapters are not sufficient to power the board - A20-OLinuXino-MICRO requires at least 6V DC;
- A20-OLinuXino-MICRO should NOT be powered from the USB-OTG port, this is described in chapter "2.3 Powering the board" in the user's manual;
- Wattage required depends on the current drawn by the USB keyboard and the mouse, for bareboard usually 0.5A @ 12V (e.g. 6W) is sufficient but in order to be safe in your case I'd recommend at least 1A at 12V (12W)
Consider testing without keyboard and mouse inserted if the SY0612E-CHINA would work, notice that file system corruption is possible if you disconnected the power supply suddenly (e.g. without performing a software shut down). So it can be a problem with the SD card image too. Test with freshly written card.
Glad the issue was resolved. About your questions:
- 5V adapters are not sufficient to power the board - A20-OLinuXino-MICRO requires at least 6V DC;
- A20-OLinuXino-MICRO should NOT be powered from the USB-OTG port, this is described in chapter "2.3 Powering the board" in the user's manual;
- Wattage required depends on the current drawn by the USB keyboard and the mouse, for bareboard usually 0.5A @ 12V (e.g. 6W) is sufficient but in order to be safe in your case I'd recommend at least 1A at 12V (12W)
Consider testing without keyboard and mouse inserted if the SY0612E-CHINA would work, notice that file system corruption is possible if you disconnected the power supply suddenly (e.g. without performing a software shut down). So it can be a problem with the SD card image too. Test with freshly written card.
#3
A20 / Re: My Micro won't boot from M...
Last post by buntubaby - July 29, 2026, 10:43:17 PMHi LubOlimex,
Thanks for your suggestions. I tried booting the board with another power supply and it boots up just fine. So the problem was caused by a defective power supply - the SY0612E-CHINA type I bought with the board.
I tried powering the board over the USB-OTG port, but that failed. Tried three 5V power adapters (2A,2A and 1A) and two cables, but to no avail.
Is 5V and 2A not enough to power the board, a USB keyboard & mouse, HDMI and ethernet?
I will look for a quality replacement power supply in any case.
Thanks for your suggestions. I tried booting the board with another power supply and it boots up just fine. So the problem was caused by a defective power supply - the SY0612E-CHINA type I bought with the board.
I tried powering the board over the USB-OTG port, but that failed. Tried three 5V power adapters (2A,2A and 1A) and two cables, but to no avail.
Is 5V and 2A not enough to power the board, a USB keyboard & mouse, HDMI and ethernet?
I will look for a quality replacement power supply in any case.
#4
TERES DIY Laptop / Re: Every Distro/Image has ano...
Last post by binutzu - July 28, 2026, 03:09:19 PMMy Teres-i is installed with this: https://box.redpill.dk/images/nonfree/
As i did it long time ago ... i think it is this nonfree-teres1-bookworm-v1.1.14.img.gz but not 100% sure.
However, as the distro was getting older, i upgraded it using debian upgrade procedure and it worked well. One thing i had to do for the upgrade or even for usual "apt update" was to enlarge the boot partition. This was easy for me to achieve because the image runs from a sd card - so i did that partition resize on a different computer.
What i also manage to do "lately" is to make the sound work with internal speakers.
I can provide some details in case someone is interested. Regarding other features,
what i did not see so far, in any of the "mainline" distros, is the HDMI out working. One can find few claims that this works, with some patches etc. but i would not give 2 cents on those (except the person from open suse).
Bottom line from me: Debian works fine - easy install was from https://box.redpill.dk/images/nonfree/
As i did it long time ago ... i think it is this nonfree-teres1-bookworm-v1.1.14.img.gz but not 100% sure.
However, as the distro was getting older, i upgraded it using debian upgrade procedure and it worked well. One thing i had to do for the upgrade or even for usual "apt update" was to enlarge the boot partition. This was easy for me to achieve because the image runs from a sd card - so i did that partition resize on a different computer.
What i also manage to do "lately" is to make the sound work with internal speakers.
I can provide some details in case someone is interested. Regarding other features,
what i did not see so far, in any of the "mainline" distros, is the HDMI out working. One can find few claims that this works, with some patches etc. but i would not give 2 cents on those (except the person from open suse).
Bottom line from me: Debian works fine - easy install was from https://box.redpill.dk/images/nonfree/
#5
FPGA / Re: Stability Issue with GateM...
Last post by charon030 - July 28, 2026, 11:25:29 AMThanks for looking into this. I'm pretty sure that the 1nF capacitors don't make any sense here because they would only be useful for togglings in the GHz range.
I found three other GateMate schematics online:
- GateMate Devboard (https://colognechip.com/docs/ds1003-gatemate1-evb-3v2-a1-schematics-latest.pdf)
- Trenz board (https://www.trenz-electronic.de/trenzdownloads/Trenz_Electronic/Modules_and_Module_Carriers/4x5/TEG2000/REV01/Documents/SCH-TEG2000-01-A1I-1A.PDF)
- GMM7550 (https://github.com/GMM-7550/gmm7550-hardware/blob/master/doc/GMM-7550_2.1_2022-04-24.pdf)
All use much bigger capacitors.
Cheers
Matthias
I found three other GateMate schematics online:
- GateMate Devboard (https://colognechip.com/docs/ds1003-gatemate1-evb-3v2-a1-schematics-latest.pdf)
- Trenz board (https://www.trenz-electronic.de/trenzdownloads/Trenz_Electronic/Modules_and_Module_Carriers/4x5/TEG2000/REV01/Documents/SCH-TEG2000-01-A1I-1A.PDF)
- GMM7550 (https://github.com/GMM-7550/gmm7550-hardware/blob/master/doc/GMM-7550_2.1_2022-04-24.pdf)
All use much bigger capacitors.
Cheers
Matthias
#6
A20 / Re: My Micro won't boot from M...
Last post by LubOlimex - July 27, 2026, 09:50:32 AM1. Check if the voltage applied to the power jack is sufficient. The A20-OLinuXino-Micro requires between 6V and 16V DC, maybe test with 12V DC.
2. Test the SD cards. Good software for testing the SD cards is either f3 (fight flash fraud) or H2testW.
3. Try with another software to download the image to the card. I recommend using BalenaEtcher or USBImager software – they are open source source, free, have releases for Windows/macOS/Linux and using them minimizes the chances of a mistake. I've had cases where something odd was written at the start of the SD card that prevented the boot from it.
2. Test the SD cards. Good software for testing the SD cards is either f3 (fight flash fraud) or H2testW.
3. Try with another software to download the image to the card. I recommend using BalenaEtcher or USBImager software – they are open source source, free, have releases for Windows/macOS/Linux and using them minimizes the chances of a mistake. I've had cases where something odd was written at the start of the SD card that prevented the boot from it.
#7
A20 / My Micro won't boot from Micro...
Last post by buntubaby - July 26, 2026, 06:53:12 PMHi everyone,
My A20-OLinuXino-Micro does not boot from MicroSD cards any more.
I've tried 2 different cards (both SanDisk Ultra 16GB) and 2 Olimex images;
* A20-OLinuXino-bookworm-base-20260323-113959.img
* A20-OLinuXino-bullseye-base-20241121-172551.img
The images I wrote to the cards using Ubuntu's Disks app (restore disk image option) and when inserting the cards into my laptop they display the uboot.env file and the other folders as expected.
When powering on the Micro, the red power LED turns on, but no other sign of life.
* No power on USB ports (more precise; my wired mouse's tracking LED will not light up, my wired keyboard's capslock will not turn on; but perhaps there is power to USB),
* no ethernet port LED activity,
* no HDMI signal.
However, when I power the Micro WITHOUT a MicroSD card in it, the ethernet LEDs immediately come to life (both power and activity).
I've disconnected the Olimex SATA connector going to an SSD but that doesnt make a difference.
Any advice or things to try?
My A20-OLinuXino-Micro does not boot from MicroSD cards any more.
I've tried 2 different cards (both SanDisk Ultra 16GB) and 2 Olimex images;
* A20-OLinuXino-bookworm-base-20260323-113959.img
* A20-OLinuXino-bullseye-base-20241121-172551.img
The images I wrote to the cards using Ubuntu's Disks app (restore disk image option) and when inserting the cards into my laptop they display the uboot.env file and the other folders as expected.
When powering on the Micro, the red power LED turns on, but no other sign of life.
* No power on USB ports (more precise; my wired mouse's tracking LED will not light up, my wired keyboard's capslock will not turn on; but perhaps there is power to USB),
* no ethernet port LED activity,
* no HDMI signal.
However, when I power the Micro WITHOUT a MicroSD card in it, the ethernet LEDs immediately come to life (both power and activity).
I've disconnected the Olimex SATA connector going to an SSD but that doesnt make a difference.
Any advice or things to try?
#8
FPGA / Re: Stability Issue with GateM...
Last post by LubOlimex - July 23, 2026, 01:23:37 PMI can confirm that the board hang with your bit. We are now evaluating what can be done, experimenting with different capacitors. The regulators are sufficient from what I see, the consumption for the whole board is less than 2W. I hope fixing this won't break anything else.
#9
iMX233 / Re: State of audio in i.MX233 ...
Last post by xaelsouth - July 18, 2026, 04:12:28 PM #10
iMX233 / Re: is imx233 dead? does anyon...
Last post by xaelsouth - July 18, 2026, 04:09:02 PMSure. Still 'playing' with iMX233. Recently published https://github.com/xaelsouth/random-notes/wiki/On-iMX23. Audio in and out works, but tv-out does not. Not sure about the latter one, but it does not seem too hard to make it work again with recent Linux kernels.
If someone could help to move some of provided patches into U-Boot, Linux or Buildroot - you are very welcome!
If someone could help to move some of provided patches into U-Boot, Linux or Buildroot - you are very welcome!