E52C is available now

So, no RTCfor the current batch? @jack thanks!

E52C v1.20A version or later has RTC soldered by default. v1.20 is the hardware design version and A is the BOM version.

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That’s good to know, Jack. The only thing is that these do not appear (or at least not prominently since I couldn’t find that info) on the aliexpress Radxa shop. It could be useful to think about updating the descriptions there once the v1.20A reach the stock so that future buyers can make sure they’ll have the RTC (I guess not everyone is fine with soldering an MSSOP chip :-)).

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Hello, I am thinking of buying an e52c. Is there anyone who uses it with wireguard or sqm by installing openwrt and having a 1gbps internet connection? If so, can you write the values ​​here?

I could run a test. My firewall is connected to the external public IP gateway over WG. From the net I’ve downloaded a 1 GB file that passes 3 times through the firewall (reverse-proxy, web server, NFS server), and while the download speed stabilized to approx 100 Mbps, I was seeing between 1 and 7% on the various WG threads:

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
11877 root      20   0       0      0      0 I   7.0   0.0   0:04.69 kworker/1:2-wg-crypt-wg0
11879 root      20   0       0      0      0 I   7.0   0.0   0:04.90 kworker/1:1-wg-crypt-wg0
11925 root      20   0       0      0      0 I   2.0   0.0   0:00.63 kworker/3:3-wg-crypt-wg0
11937 root      20   0       0      0      0 I   2.0   0.0   0:00.09 kworker/5:0-wg-crypt-wg0
11899 root      20   0       0      0      0 I   1.7   0.0   0:00.65 kworker/0:2-wg-crypt-wg0
11923 root      20   0       0      0      0 I   1.7   0.0   0:00.64 kworker/0:3-wg-crypt-wg0
11934 root      20   0       0      0      0 I   1.3   0.0   0:00.14 kworker/3:2-wg-crypt-wg0
11927 root      20   0       0      0      0 I   1.0   0.0   0:00.46 kworker/4:3-wg-crypt-wg0
11936 root      20   0       0      0      0 I   1.0   0.0   0:00.09 kworker/4:2-wg-crypt-wg0
11933 root      20   0       0      0      0 I   0.7   0.0   0:00.03 kworker/2:0-wg-crypt-wg0
   26 root      20   0       0      0      0 S   0.3   0.0   0:01.89 ksoftirqd/2
11823 root      20   0       0      0      0 I   0.3   0.0   0:00.93 kworker/5:2-wg-crypt-wg0
11920 root      20   0       0      0      0 I   0.3   0.0   0:00.30 kworker/2:3-wg-crypt-wg0
11921 root      20   0       0      0      0 I   0.3   0.0   0:00.78 kworker/1:4-wg-crypt-wg0

The total load on the machine approached 12% everything included (i.e. nftables nat and bouncing the traffic 3 times over distinct vlans). I guess you could expect to reach Gbps though WG on this machine.

Is it possible to run a custom Debian image? Not using the redxa provided one? For example, possible to run Debian trixie on it? Custom kernel?

Yes, build armbian trixie for E52C

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With minimal effort and a recent kernel you should be able to run any distro, because the hardware supports mainline 6.12 and onwards. I’m using my own source-based distro on it and it worked out of the box.

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