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Inside a transistorized shift register box, built in 1965 for Apollo testing
| | satharus.me
The 4043 - Part 1: Days 1 to 4, How do Computers Work? - Technoir - Blog of Satharus
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| | If you've been following me on Twitter, you must've been seeing some insane dude who is putting some chips on a breadboard and is using a lot of wiring.This ...
| | tomscii.sig7.se
What time is it (DCF77-style)?
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| | [AI summary] This is a detailed account of the development and construction of a DCF77-controlled clock with additional features like temperature and humidity sensing. The author describes the design process, hardware components, and software implementation, including the use of a simulator for development. The project includes a bill of materials, cost analysis, and future improvements. The source code and hardware design are shared under an open license.
| | nothinguntoward.eu
Designing a Trailing Edge Dimmer Circuit - Nothing Untoward
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| | [AI summary] This is a detailed account of the design and implementation of a trailing edge dimmer circuit for a lamp. The author explored various components and concepts, including current sources, pulse generation, and the challenges of achieving a linear ramp for dimming. Despite the project's complexity, the author found the dimming performance to be less than ideal due to nonlinearity in the ramp and flicker in the output. The project concluded with a decision to pursue an alternative solution, such as a rotary switch, instead of a dimmer.
| | krinkinmu.github.io
AArch64 Exception Levels | Welcome to the Mike's homepage!
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| I'm continuing my exploration of the AArch64 architecture and this time I will touch on the AArch64 priviledge levels. Note that AArch64 priviledge model is not exactly the same as the previous iterations of ARM. While there are plenty of similarities, and there is a level of backward compatibility, at the same time, there are some differences as well. So do not assume that things covered here will work the same way for all ARMs. Finally, I assume that you're familiar with general GNU Assembler synatax or willing to figure things out as you go. Familiarity with ARM assmebly language will help, though I try to explain all the things I use. As always the code is available on GitHub.