Welcome, Guest

Recent Posts

Pages: [1] 2 3 ... 10
A20 / Re: A20SOM strange SPI problem
« Last post by LubOlimex on Today at 11:53:23 AM »
For the test commands try with flag -l as shown here: https://www.olimex.com/forum/index.php?topic=5354.0

Also for the SPI you should try with the Python package: https://pypi.org/project/pyA20EVB/ (there is example at the bottom of the page for the SPI).

Please first check this cheeky article: https://www.olimex.com/wiki/Torrents

If you still can't get it downloaded, please write an e-mail to support@olimex.com and we would think of way to receive the image that you need.

Best regards,
TERES DIY Laptop / Re: LCD frame does not snap properly to back
« Last post by vtsvetkov on Today at 11:00:31 AM »
Sorry to hear you had troubles.

Did you wait almost 2 months for the replacement LCD frame to arrive and THEN to test the laptop?

You could have easily found out if the inputs, USB etc. work even if the LCD frame is not snapped properly, and order the necessary parts along with the LCD frame.

When I assembled the laptop I closed and re-opened the snaps maybe 7-8 times, each time cringing from the sound they made, but never broke. Sounds like bad luck if yours arrived in bad condition.

If you have not yet given up, try this:
-assemble the LCD frame without the antenna cable and make sure it snaps well, maybe yours did not snap well because of the cable
-test the board outside the case (try not to cause a short or bend it too much)
-the TERES debug cable can help to see what happens during the boot process, you can see if the USB inputs are detected

I assembled 2 laptops and I had the same frustration with the antenna wire, so much that for the second one I pre-heated it with a hair dryer to make it easier to bend and carefully placed it in place.

Good luck.
AM3352 / Re: Problem with dtb file 'som-evb'
« Last post by LubOlimex on Today at 08:34:51 AM »
Which image do you use? I believe the description about the dtb replacement fits only the image with the newer kernel:

The recommended one (older kernel): https://www.olimex.com/wiki/images/c/c6/AM3352_debian_3_12_VGA_1024x768_preliminary_release_4.torrent

Or the not recommended one (newer kernel): https://www.olimex.com/wiki/images/9/94/AM335x_debian_4_4_VGA_800x600_release_5.torrent
AM3352 / Problem with dtb file 'som-evb'
« Last post by toto255 on May 20, 2018, 11:05:19 PM »

I get an Olimex-SOM with the Olimex-SOM-EVB feature,

My problem is, when i modify the uEnv.txt the board doesn't restart.

I just followed this procedure: https://www.olimex.com/wiki/AM3352-SOM

Code: [Select]
- Open uEnv.txt for editing with:

root@AM335x:~# nano /uEnv.txt

- edit the first line to:

fdtfile=am335x-olimex-som-evb.dtb (or the dtb file you need)

- save the edit by pressing "CTR"+"X"; then pressing "Y"; finally hit "Enter"

- reboot the board with:


In the boot, I have only am335x-olimex-som.dtb and not am335x-olimex-som-evb.dtb for my board.

Where can I find am335x-olimex-som-evb.dtb?

Checkers with AI for Apple 1 on FPGA, and USB to serial using programmer. YouTube video that demonstrates the system: https://youtu.be/Io8544H-qKM

I have made a fork of the FPGA programmer firmware for Olimexino-32U4 (Arduino Leonardo clone) so that it is now also a USB to serial converter. This is useful when developing FPGA-projects that use serial communication with the computer that you used to program it with. You don't have to buy an extra USB to serial converter or use an extra USB cable or port.

Set to 3.3 V before connecting it to FPGA. Start USB to serial by using BUT+RST. Hold BUT down until last restart, i.e. for a rather long time. Think of BUT as a shift-button to RST, but that must be held down a long time after RST has been released.

In order to use it as a programmer for FPGA again you have to press RST without BUT.

I use it with Apple I in Verilog. Connect D0 to GPIO7 and D1 to GPIO5 for Olimexino-32U4 and iCE40HX8K-EVB, respectively. CTS (GPIO9) is not yet implemented. Note: You must also edit rtl/boards/olimex_ice40hx8k/apple1_hx8k.v so that PS/2 is excluded, and make and program the iCE with the new apple1.bin.

To send files: Transmit delay: 200 msec/char, 700 msec/line (slow speed due to lack of support for CTS).

My intention was to load a FORTH (programming language). It seems VolksFORTH is 16 KB in size which is loaded into RAM, and then it probably requires some RAM to run. Apple I for FPGA currently only has 8 KB RAM (BRAM). Apple 1js, where I tested volksFORTH, probably has 32 KB RAM. Olimex iCE40HX8K-EVB has 512 KB external SRAM, but that is not used in Apple One for FPGA. They are interested in a pull request about this feature: https://github.com/alangarf/apple-one/issues/31 .




Checkers chapter: https://www.atariarchives.org/basicgames/showpage.php?page=40

Checkers.bas: https://linuxcoffee.com/apple1/software/

The book with Checkers in Swedish in libraries: http://libris.kb.se/bib/7755839
TERES DIY Laptop / Re: LCD frame does not snap properly to back
« Last post by rhialto on May 20, 2018, 05:28:06 PM »
Well that was an expensive debacle.  >:( >:( >:( >:( >:( >:( >:( >:( >:(

I ordered a new lcd back and frame (with the same expensive shipping as the original whole laptop).

I put stuff together. It boots to the Ubuntu login screen.

No input works. Not keyboard. Not touchpad.

USB keyboard or mouse don't work either. Looks like there is no power to the USB ports (I tried both). I also tried it with the power plugged in. I also removed and reinserted various flatcables connected to the pcb5-keyboard. The one between pcb5-keyboard and pcb1-a64-main is way too long and got squished in bad looking corners (I can't call that curves any more).

In other words: an expensive piece of trash which I now have to bring to the garbage disposal as electronic waste.

And it is so frustrating! So close to a nice working laptop. The size is nice, The keyboard feels nice. The weight is nice. But if it doesn't actually work, it is useless. Soooo disappointing!
A64 / a64olinuxino_ubuntu_16.04.3_20180501_rel4 black screen
« Last post by flxb8 on May 19, 2018, 07:19:22 PM »
when I boot up with the new image, all I get is a black screen.
Btw. does the microphone input work in this release?

Thx & Bests.
Just a heads up that I've revised the guide mentioned in this earlier post: https://www.olimex.com/forum/index.php?topic=5781.msg23843#msg23843

Again, it's somewhat OS X centric (making use of MacPorts), but should be useful to any UN*X / BSD users wanting a cutting-edge AVR GNU toolchain (gcc-8.1.0, binutils-2.30), patched avrdude-6.3 (the USB endpoint issue that causes so much frustration), and being able to make use of their AVR-ISP-MK2 with Olimex's firmware update. As before, the guide assumes you know what you're going when it comes to command lines and compilers, etc.


Hope you find it helpful.



I'm in china, had try some download tools, still can't connect to any Tracker from this torrent file.

can you provide  HTTP or FTP download method?

thank you.
Pages: [1] 2 3 ... 10