November 24, 2024, 02:54:04 PM

Recent posts

#31
A20 / Re: Ethernet problem A20-OLinu...
Last post by valt - November 14, 2024, 10:06:37 PM
Hello,

I'm coming back to you following my instructions. Using memtool, I changed the values on my current configuration (an armbian image) from 48 Mbps to 61Mbps. I've run an olimex image on my lime 2 and run the tests again, this time I get this for the iperf command-line tests:

olimex@a20-olinuxino:~$ iperf3 -c ping.online.net
Connecting to host ping.online.net, port 5201
[  5] local xx.xx.xx.xx port 47938 connected to 51.158.1.21 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.01   sec  69.3 MBytes   576 Mbits/sec    1    515 KBytes       
[  5]   1.01-2.01   sec  65.0 MBytes   545 Mbits/sec    0    580 KBytes       
[  5]   2.01-3.01   sec  61.2 MBytes   514 Mbits/sec    1    448 KBytes       
[  5]   3.01-4.01   sec  53.8 MBytes   452 Mbits/sec    1    339 KBytes       
[  5]   4.01-5.02   sec  48.8 MBytes   405 Mbits/sec    0    368 KBytes       
[  5]   5.02-6.01   sec  52.5 MBytes   442 Mbits/sec    1    324 KBytes       
[  5]   6.01-7.00   sec  52.5 MBytes   445 Mbits/sec    0    352 KBytes       
[  5]   7.00-8.01   sec  50.0 MBytes   419 Mbits/sec    1    329 KBytes       
[  5]   8.01-9.01   sec  43.0 MBytes   360 Mbits/sec    0    345 KBytes       
[  5]   9.01-10.00  sec  48.8 MBytes   412 Mbits/sec    1    327 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   545 MBytes   457 Mbits/sec    6             sender
[  5]   0.00-10.04  sec   545 MBytes   455 Mbits/sec                  receiver
 
iperf Done.

However, when I run a direct GUI test on fast.com, for example, I get a throughput of 20Mbps. I don't know how to explain this difference, but overall, with iperf and an olimage image, the throughput seems to correspond to what it receives on ethernet.
#32
FPGA / Re: unable to configure gatema...
Last post by LubOlimex - November 13, 2024, 04:46:05 PM
Thanks for the update.
#33
FPGA / Re: unable to configure gatema...
Last post by sukruth - November 13, 2024, 01:25:12 PM
I was able to solve the issue, please refer to this

https://github.com/trabucayre/openFPGALoader/issues/495
#34
Neo6502 / Re: Apple II emulator
Last post by LubOlimex - November 13, 2024, 08:38:53 AM
These emulators are constant work-in-progress so the best version is the one at the GitHub of the emulator project.

Maybe try with this one:

https://ftp.olimex.com/Neo6502/apple2e-5.uf2

If it doesn't work well, try with the original one:

https://ftp.olimex.com/Neo6502/old-uf2/apple2_800x600_400MHz.uf2

Important! To use the apple emulator, you also need to format a USB flash drive with Total Replay. You can find it here:

https://ftp.olimex.com/Neo6502/Total%20Replay%20v5.1.hdv

Just place it in main folder of the USB flash drive and after that plug the USB flash drive in the Neo6502 that is prepared with apple2e-5.uf2. Finally power the Neo6502.
#35
A20 / Re: Ethernet problem A20-OLinu...
Last post by LubOlimex - November 13, 2024, 08:32:37 AM
Then it is quite likely problem with the Ethernet settings. You might try changing a value in the CPU registers and see if that improves the behavior (it is alright if it doesn't since the value gets reloaded upon reboot):

memtool mw 0x01c20164 0x00000426

Important: this value will reset to default if you reboot. So after issuing the command test the Ethernet throughput and ping right away before rebooting or powering down the board. If you reboot you need to issue the command again.

If your image has no memtool, try:

apt install memtool

or find it here

https://github.com/pengutronix/memtool

>  By any chance, can I remove my current external disk (which contains my current services) to run the Olimage Linux image via USB while I test the throughput? Or will I lose all my data?

I don't know how to boot from USB on these A20 boards. We boot from card and after that we can prepare booting from eMMC (with the help of SPI flash) or SATA disk.

You can prepare another SD card with Olimage and just run that, SD card has highest boot priority so your data on eMMC or SATA will be unaffacted as long as you don't wipe or install the card to them of course. The Olimage SD card boot will have precedence over other boot mediums.

Refer to Olimage guide:

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

- Download the archive with the latest Olimage Linux image from the proper location for your board.

- Extract the archive, if you can't extract the 7-zip archive, download 7-zip software for your OS.

- Prepare a card with the image from the archive. I recommend using free version of BalenaEtcher since it is pretty simple to use, it can be downloaded from here:

https://etcher.balena.io/#download-etcher

- Insert the ready SD card in the board, attach debug medium (preferably USB-serial cable) and start the debug medium, finally attach 5V DC jack to the board to power it.

- Login to the board with root and olimex

- Test the Ethernet

- If there are issues still try the CPU register command from the beginning of this post and test the Ethernet again.



#36
A20 / Re: Lime2 fileserver HD noise?
Last post by mbosschaert - November 13, 2024, 01:12:18 AM
Thanks @LubOlimex for your thoughts
I've started monitoring temperature now on 5 servers all with SATA-HD connected. I've left them in the enclosures as they were and will see if the height of the cpu_temp coincides with the irregular behaviour as described.
Will report back in probably some weeks
#37
A20 / Re: Ethernet problem A20-OLinu...
Last post by valt - November 12, 2024, 11:20:05 PM
Hello,
Sorry for my late reply. I'm not on Olimage linux. I have the community version of Armbian for file 2. However, my card is currently running my personal services. Isn't there anything else than reinstalling the Olimex image? By any chance, can I remove my current external disk (which contains my current services) to run the Olimage Linux image via USB while I test the throughput? Or will I lose all my data?
#38
Neo6502 / Apple II emulator
Last post by estephan500 - November 12, 2024, 04:07:00 PM
Hello -- your last answer helped perfectly.

Now I have the Morpheus installed, I realize that my goal is really to emulate an apple II. I looked at your documentation but couldn't find answers to the below, huge thanks for any help you can give:

1-- is the best apple emulator the very same one that was installed when the neo6502 was out of the box? OR is there an apple II emulator for neo6502 that is more complete? (FOR EXAMPLE, I could not acccess the USB memory stick when it was out of the box, even though it was formatted FAT32. But I *can* see the memory stick now that I installed Morpheus.)

2-- How do I go back to installing the Apple II emulator now that I have installed Morpheus?

3-- If I was looking at emulation sites and I downloaded a .dsk image ... how can I get that .dsk to run on the neo6502?
#39
Neo6502 / Re: New neo6502. Trying to ins...
Last post by LubOlimex - November 11, 2024, 04:50:44 PM
First disconnect all cables, then you need to press and hold button BOOT, then apply the USB, then release the button BOOT.
#40
Neo6502 / New neo6502. Trying to install...
Last post by estephan500 - November 11, 2024, 04:31:58 PM
Hello!

I bought a new Neo6502, it's exciting.

The card works in the initial configuration out of the box (showing the single volume of several apple games and ProDOS.

But now I want to install Morpheus and proceed into more deep use. So, I am following the instructions on https://neo6502.com/welcome/starting/

My problem is:  I am following the instructions to use a USB-A to USB-A cable to connect to my PC, so that the neo6502 will behave like a drive and I can copy files to it.

BUT, when I connect the neo6502 to my PC, it immediately POWERS the neo6502 even when there is nothing going into the usb-C power jack. The red light goes on and I can hear it beep and start up!  AND THEN, no surprise, when I continue with the process to hold down the reset button when powering it up, to try to get the neo6502 to appear as a volume on my PC's operating system, it never appears there. (I'm not surprised because it is clearly starting up the neo6502 in its normal mode, not behaving as a disk.)

I have tried this on a macbook pro AND on an Acer windows laptop.  Same "power up" behavior is happening.

I have tried this on two USB-A to USB-A cables: One that was in my personal bag of cables, and then one that I ordered online and came to me new.

Why is the neo6502 starting up when I connect only the usb-a to usb-a? it's supposed to stay un-powered so I can continue with your instructions about powering it from the jack only when the reset button is being pressed, etc...

THANKS!
Eric