firmware guides, questions and discussions

Article0 replies1,607 followingPosted 12 May 2026, 15:15 UTC123.7K views4,944 votes

Debian's non-free-firmware Component: What Changed in Bookworm and Why Your Upgrade Might Be Missing Firmware Updates

Debian 12 moved device firmware into a new non-free-firmware archive component. Systems upgraded from Debian 11 often miss this component, leaving firmware packages stale. Here's how to detect the gap, add the component, and install the right firmware for your hardware.

Community & Careers · Blog

firmware

debian apt

Community & Careers

Article1 reply1 comment3,183 followingPosted 30 Aug 2026, 11:18 UTC86.9K views4,334 votes

owner commented

Using volatile to Guard Hardware Registers in Embedded C

Learn why the volatile qualifier is essential for reliable hardware register access in Embedded C, see a GPIO LED toggle example, and understand the performance trade‑offs of over‑using volatile.

Community & Careers · Blog

embedded-c

embeddedc firmware

Community & Careers

Article0 replies4,067 followingPosted 07 Sept 2026, 06:05 UTC118.2K views4,768 votes

Persisting Configuration on Arduino: Using EEPROM.put/get for Reliable Data Storage

Use Arduino’s EEPROM library to store configuration structs that survive resets. Learn how to write, read, and validate data, handle wear‑leveling, and avoid common pitfalls.

Community & Careers · Blog

persistent-storage firmware

arduino

#firmware

Debian's non-free-firmware Component: What Changed in Bookworm and Why Your Upgrade Might Be Missing Firmware Updates

Using volatile to Guard Hardware Registers in Embedded C

Persisting Configuration on Arduino: Using EEPROM.put/get for Reliable Data Storage