Recent posts

#71

STMP1 / Re: Alternate RAM for STMP157

Last post by LubOlimex - October 29, 2024, 08:18:54 AM

The software is open source, all sources are available at our GitHub, you'd have to edit the u-boot for the different RAM settings. I can't do it for you. What exactly depends on the RAM but check this guide about links to sources and description of rebuilding:

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

#72

STMP1 / Re: Alternate RAM for STMP157

Last post by gs018 - October 29, 2024, 07:58:17 AM

I have designed the board and is planning to populated the board, can you please suggest if I am going to change the RAM on the board then what are the changes which are needed to be made in the software and where to make the changes and can you please suggest any reference from where I can get the idea.

#73

A20 / how to get analog output to Li...

Last post by Unchip - October 28, 2024, 12:00:58 PM

Target is to use Lime2 as a "virtual temperature measurement" instead of real NTC to fool a heat pump. how to get analog output to Lime2 or other ideas how to make a virtual NTC?

#74

AgonLight / Re: What kind of hexagonal spa...

Last post by Adrian.VT - October 28, 2024, 11:43:17 AM

Again, thanks for your fast response!

Now I know what I should look for.

#75

AgonLight / Re: What kind of hexagonal spa...

Last post by LubOlimex - October 28, 2024, 11:20:55 AM

Yes, exactly. These are the spacers, the page also has better dimensions. The BOX-AGONLIGHT2-BLACK kit should include 4 of those. But maybe first check for similar spacer in a general hardware shop around you to save on the shipping.

#76

AgonLight / Re: What kind of hexagonal spa...

Last post by Adrian.VT - October 28, 2024, 11:14:15 AM

Thank you for the fast response!

Then, I should understand that will work the hexagonal spacers which can be ordered from the link bellow?

https://www.olimex.com/Products/Components/Fasteners/HEX-SPACER-M3X6/

With the case arrived 8 screws, which I think they are all needed.

#77

AgonLight / Re: What kind of hexagonal spa...

Last post by LubOlimex - October 28, 2024, 11:05:21 AM

Sorry for this, it is rare for the guys in the packing to miss components during packing.

These are metallic M3x6mm female-female hexagonal stand-offs. Refer to the picture on how they look:



The screws that are used for them are DIN7985 M3x4mm

#78

AgonLight / What kind of hexagonal spacers...

Last post by Adrian.VT - October 28, 2024, 10:26:25 AM

I have ordered an AgonLight2 board and its case, but unfortunately the case arrived without the 4 hexagonal spacers which I suppose that should be shipped along, then I am unable to mount the board in its case.

I am quite disappointed that the case arrived without all accessories, BUT I did not made this post just to lament - I opened it to try to find a way to get these missing hexagonal spacers.

So, my question is what kind of hexagonal spacers are used in this case, and if I can order them separately.

Eventually, just their exact dimensions can be useful for me.

#79

A20 / Re: Ethernet problem A20-OLinu...

Last post by LubOlimex - October 28, 2024, 08:19:38 AM

Each board gets a network throughput test after manufacturing, each board is required to have at least 300Mbit/s throughput.

Are you testing with Olimage Linux? If not, please test with Olimage and report back. Refer to this document:

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

#80

A20 / Ethernet problem A20-OLinuXino...

Last post by valt - October 26, 2024, 06:57:19 PM

Hello everyone,

I've owned an Olimex A20 Lime2 Rev.K for a few months and a problem related to the ethernet remains unresolved despite my numerous searches on the Internet and various forums. My box is connected directly via an ethernet cable to my ISP's box. Trying to use this famous ethernet cable from my personal PC, a speed test gives me a downstream speed of around ~900 Mbps. However, when I connect this cable to my olimex, the speed suddenly becomes very low, trying an iperf on a public server with a speed of 100 Gbit/s I get about 30 Mbps:

Code Select Expand

root@olimex:~# iperf3 -c ping.online.net
Connecting to host ping.online.net, port 5201
[  5] local xx.xx.xx.xx port 58542 connected to 51.158.1.21 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  3.44 MBytes  28.8 Mbits/sec    0    244 KBytes      
[  5]   1.00-2.02   sec  4.25 MBytes  35.1 Mbits/sec    0    430 KBytes      
[  5]   2.02-3.00   sec  4.07 MBytes  34.6 Mbits/sec    0    619 KBytes      
[  5]   3.00-4.00   sec  3.70 MBytes  31.0 Mbits/sec    6    410 KBytes      
[  5]   4.00-5.00   sec  2.96 MBytes  24.8 Mbits/sec    1    258 KBytes      
[  5]   5.00-6.00   sec  2.22 MBytes  18.6 Mbits/sec    0    279 KBytes      
[  5]   6.00-7.00   sec  2.96 MBytes  24.8 Mbits/sec    0    288 KBytes      
[  5]   7.00-8.00   sec  2.22 MBytes  18.6 Mbits/sec    0    290 KBytes      
[  5]   8.00-9.00   sec  3.02 MBytes  25.3 Mbits/sec    0    290 KBytes      
[  5]   9.00-10.00  sec  1.48 MBytes  12.4 Mbits/sec    0    290 KBytes      
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  30.3 MBytes  25.4 Mbits/sec    7             sender
[  5]   0.00-10.31  sec  28.6 MBytes  23.3 Mbits/sec                  receiver

iperf Done.
However, if I look at my network card, I'm supposed to be able to receive at least 1000 Mbp/s :

Code Select Expand

root@olimex:~# ethtool eth0
Settings for eth0:
    Supported ports: [ TP     MII ]
    Supported link modes:   10baseT/Half 10baseT/Full
                            100baseT/Half 100baseT/Full
                            1000baseT/Half 1000baseT/Full
    Supported pause frame use: Symmetric
    Supports auto-negotiation: Yes
    Supported FEC modes: Not reported
    Advertised link modes:  10baseT/Half 10baseT/Full
                            100baseT/Half 100baseT/Full
                            1000baseT/Half 1000baseT/Full
    Advertised pause frame use: Symmetric
    Advertised auto-negotiation: Yes
    Advertised FEC modes: Not reported
    Link partner advertised link modes:  1000baseT/Full
    Link partner advertised pause frame use: Symmetric
    Link partner advertised auto-negotiation: Yes
    Link partner advertised FEC modes: Not reported
    Speed: 1000Mb/s
    Duplex: Full
    Auto-negotiation: on
    master-slave cfg: preferred slave
    master-slave status: slave
    Port: Twisted Pair
    PHYAD: 1
    Transceiver: external
    MDI-X: Unknown
    Supports Wake-on: d
    Wake-on: d
        Current message level: 0x0000003f (63)
                               drv probe link timer ifdown ifup
    Link detected: yes
Do you know of a similar problem with anyone else? Do you have any advice on how to fix it?

PS: if my message isn't very clear, please excuse me for my broken English.

Thank you in advance and have a nice day