Rick Altherr @kc8apf@mastodon.cloud
he/him. Engineer, tinkerer, 🏎️,🔧,🔌,💻, FOSS FPGA tools.
Joined Apr 2017
Pinned toot
Reminder: I offer free mentoring and mock interviews. Embed sys, C++, perf analysis, at-scale monitoring, and more. Grab a spot on my calendar at http://calendly.com/kc8apf.
Rick Altherr
boosted
Today's trebuchet progress: frame mostly built. Need to work out pouch design and quick release.
Planning a trebuchet build with my kids. Started with some drawings and calculations.
"hidden coprocessor" is exactly what I want in a security-focused microcontroller: https://www.nxp.com/docs/en/application-note/AN12868.pdf
Rick Altherr
boosted
Google memories (1/x)
Rick Altherr
boosted
Hewlett Packard Enterprise #HPE is now working on open source #firmware, thanks to Jean-Marie Verdun having joined them.
See https://osfci.tech for a cool demo.
This post below is in #French.
https://linuxfr.org/users/vejmarie/journaux/microcode-ouvert-sur-materiel-hpe
What the heck is hyperscale? I tried to find out in a new blog post: https://www.kc8apf.net/2020/05/what-the-heck-is-hyperscale/
Hot take: FPGAs are just very, very long instruction word (VVLIW?) processors
Guess I'm going to be the one to write an IPMI performance benchmark.
TFW you recognize throughput is varying with latency because every IPMI implementation sends requests sequentially instead of pipelining.
Rick Altherr
boosted
A #mastodon exclusive! You are invited to play on a *REAL* PDP-8/e running the TSS/8 monitor (TimeSharing System 8) pictured here. There is a user contributed tutorial here:
https://wiki.livingcomputers.org/doku.php?id=tss_8
To connect, ssh tss8@tty.livingcomputers.org
If you are unable to connect that means all 6 (yes, just 6) lines are in use. Remember, this is real hardware and there is NO EMULATION happening. It is the real deal! Enjoy!
I'm coming to CanSecWest for the first time in 2020 and I'm bringing "Finding Firmware Implants" training to the Dojo with me. https://cansecwest.com/dojos/2020/firmimplants.html
My day was spent in ISE 14.7. I could have been 8x as productive if it was multithreaded.
Ah, the winter holidays. The time when I inevitably overload myself with things like moving to another state, buying one house and selling another, tearing apart a car to send it off for bodywork restoration, and keep going at my day job. 😂😴
More projects like @emissions_api please.
infosec, training, advertisement
☑️ Install Migen and LiteX
☑️ Create platform for PicoEVB
⬜ Ponder how to declare PCIe port's ref clock domain as default clock
⬜ How does any of this work?!?!
he/him. Engineer, tinkerer, 🏎️,🔧,🔌,💻, FOSS FPGA tools.
Joined Apr 2017
