Mastodawn

At our next RetroNetCall on August 6th, 2025, we will welcome the former Lead Engineer of the SEL/Alcatel Sytem 12 digital telephone switch. If you have any interest in historical digital telephony switching, don't miss out on this opportunity:
https://discourse.osmocom.org/t/retronetcall-2025-08-06-sel-alcatel-system-12/2246 #retronetworking #isdn #telecom #telephony #telecomhistory

RetroNetCall 2025-08-06: SEL Alcatel System 12

[German version elow] At our next RetroNetCall on August 6th, 2025 we will have the pleasure of welcoming Mr. Langenbach-Belz, who was working at SEL (and later Alcatel) in a variety of technical management positions. He has been present throughout the the S12 (System 12) development from the very first architectural workshop on its design. The call will not contain a formal presentation, but is just a conversaiton about the history of System 12 and Mr. Langenbach-Belz involvement in it. In ...

Osmocom Discourse

SDRHoernchen Jun 29

Abenteuer Bahn: wenn der Zug heut ein bischen lang ist, und daher den Bahnhof nur so halb erreicht, und die 1. Klasse daher bitte zum Aussteigen vorlaufen möge..

SDRHoernchen Jun 16

Somewhere within Marvels multiverse USB just works.

SDRHoernchen May 11

Manche Tage fühlen sich an wie Siemens..

SDRHoernchen Apr 11

I just remembered there used to be a blog with great die shots 20 years ago, fortunately still preserved by the web archive: https://web.archive.org/web/20160105100410/http://microblog.routed.net/category/icf/

Icy Friday | μblog: engineering from the trenches

SDRHoernchen Apr 5

Retrocomputing

SDRHoernchen Apr 1

s390x-jn-linux-musl-gcc Apr 1

someone turned on fog of war on https://godbolt.org/

Compiler Explorer

Compiler Explorer is an interactive online compiler which shows the assembly output of compiled C++, Rust, Go (and many more) code.

SDRHoernchen Mar 31

oh ericsson.. you really had to do rj45 to.. firewire (?) for the gps.

SDRHoernchen Feb 10

tnt Feb 9

Building a mini SDR with custom silicon.

I combined a couple of projects from TT6 and TT7 and receive some FM modulated signals !

Go watch the video if that sounds cool : https://youtu.be/ynHy9gpcBgc

SDR with custom silicon ! Combining TinyTapeout projects.

YouTube

SDRHoernchen Feb 7

[Fri Feb 7 20:27:44 2025] INFO: task kworker/2:1:237 blocked for more than 860 seconds.
[Fri Feb 7 20:27:44 2025] Tainted: P W O 6.8.0-52-generic #53-Ubuntu
[Fri Feb 7 20:27:44 2025] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[Fri Feb 7 20:27:44 2025] task:kworker/2:1 state:D stack:0 pid:237 tgid:237 ppid:2 flags:0x00004000
[Fri Feb 7 20:27:44 2025] Workqueue: usb_hub_wq hub_event