Recent posts

#71

A20 / HDMI No Signal on A20-OLinuXin...

Last post by myrcy - September 05, 2024, 07:51:49 PM

Hello everyone,
    I am having some issues getting an HDMI signal with Debian on my A20-OLinuXino-LIME2. Has anyone had a similar issue?

Here are the steps I have attested:

  $ wget https://deb.debian.org/debian/dists/stable/main/installer-armhf/current/images/netboot/SD-card-images/firmware.A20-OLinuXino-Lime2.img.gz
  $ wget https://deb.debian.org/debian/dists/stable/main/installer-armhf/current/images/netboot/SD-card-images/partition.img.gz

  # zcat firmware.A20-OLinuXino-Lime2.img.gz partition.img.gz > /dev/sdb

Thank you so much for any help you can provide!

#72

A20 / Re: LIME2 Rev.L lock-up freeze...

Last post by kayleeama - September 05, 2024, 04:10:18 PM

I can confirm that KriszK's solution worked for us as well. We experienced the same freeze issue, but switching the governor to performance resolved it.

#73

NXP / Re: RT1010Py-DevKit

Last post by TS - September 05, 2024, 10:10:30 AM

Yes, you were right. Holding the Power button for 5 Seconds will turn the system off, while just tipping the button turns it on. Great!
Sorry for my late reply, as I did not get a notification, that a reply is waiting.

Thank you!

#74

ESP32 / Re: ESP32-POE-EA-IND

Last post by LubOlimex - September 05, 2024, 09:49:47 AM

It is the same from hardware point of view. It is the same power line. You should consider which is better for your project considering soldering to the header might be better for embedding in own projects and harder to disconnect, while the USB is convenient for easier unplugging but might get detached accidentally if no precautions are taken. The USB has another advantage if the board would be accessed by multiple people especially - it is harder to cause short-circuit by connecting USB powering if the USB port is already taken (while if you use the pins to power, the USB is free to plug USB and cause damage).

Consumption depends on code. Usually around 40mA with WIFI enabled but we recommend reserving at least 200mA @ 5V (1W) for the board just in case of spikes during initialization etc.

Notice that ESP32-POE still gets influenced by multiple grounds (if your Ethernet cable is shielded it has own ground). Just with PoE it is almost certain damage due to the high voltage of the PoE circuit. It is still advisable to measure voltage between different devices attached to ESP32-POE boards (remove the ESP32-POE and measure the ground difference between the ground of a shielded Ethernet cable and the ground of power supply or other attached peripherals powered from own power source).

#75

ESP32 / ESP32-POE-EA-IND

Last post by DarthWeber - September 05, 2024, 08:54:37 AM

Hi,

since i want to power my ESP32-POE-EA-IND with external 12V via DC/DC to 5V:

- is it better to use the usb or the 5V Pin? I will use ethernet but no POE

- How much maximal current does the board expect itself (without peripherals) ?

Many Thanks,
Darth Weber

#76

A20 / Re: OpenBSD Support on A20-OLi...

Last post by LubOlimex - September 05, 2024, 08:26:44 AM

You'd have to ask the OpenBSD community. I've seen people use OpenBSD successfully the A20 Olimex boards but we haven't tried it ourselves. The image we support is called Olimage and you can find more info about it in this document:

https://github.com/OLIMEX/OLINUXINO/blob/master/DOCUMENTS/OLIMAGE/Olimage-guide.pdf

Of course you are free and welcome to use any other Linux image, but we don't support all Linux distributions all of the time. Most popular distributions have support for Allwinner chips tho, and some for Olimex boards but it is a community effort.

#77

A20 / OpenBSD Support on A20-OLinuXi...

Last post by myrcy - September 05, 2024, 05:11:52 AM

Hello everyone,
    I hope this finds you well.
I was curious if anyone could confirm/deny if OpenBSD was function on the LIME2.

My assumption is that it would be supported by OpenBSD/armv7.
However, my familiarity is less and I wanted to ask this forum if anyone has any advice. Thank you so much for any support you can provide.

—Best

#78

ESP32 / Re: ESP32-POE Audio Setup

Last post by LubOlimex - September 03, 2024, 01:39:13 PM

No, it doesn't work like that. You need to find three free pins and then re-define the software for the three free pins. You don't have to use specific pins for I2S, any free GPIO can be configured for I2S operation.

https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/peripherals/i2s.html

#79

ESP32 / Re: ESP32-POE Audio Setup

Last post by mihaiadrian - September 03, 2024, 12:26:44 PM

Could you please give more details about how you connected the i2s device to Olimex esp32-poe ? especially where I can find the pins  :

BCLK: Pin 26
LRC: Pin 25
DIN (DOUT): Pin 22

I don;t see them in this img:  https://www.olimex.com/Products/IoT/ESP32/ESP32-POE-ISO/resources/ESP32-POE-ISO-GPIO.png

#80

Neo6502 / Re: I can't download document

Last post by Hugh Aguilar - September 03, 2024, 12:50:29 AM

The document is simply all pages from the web-site packed in a pdf. You can instead click the interface on the web-site (https://neo6502.com/) to get the same information.

I have notified the maintainer of the web-site about the problem.

Best regards,
Lub/OLIMEX

Okay, I found the documentation so I can get started.
I would still appreciate getting the pdf version.

My assembler is coming along nicely.
I need to start running code to test it.