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From Zero to main(): Bare metal C
Throughout the Zero to main() series of posts, we demystify what happens between when power is applied and your main function is called. In the process, we’ll learn how to bootstrap a C environment, implement a bootloader, relocate code, and more!
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Programming the ATSAMD21 with IBDAP
In the process of porting a blog post from the retired Arduino M0 Pro to Adafruit’s excellent Metro M0 Express, I ran into a few issues and scant amount of documentation. I’m writing this for the next poor soul wrestling with these systems.
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OTA Firmware Updates for Matter Devices via nRF Cloud
This post walks through implementing OTA firmware updates on a Matter-over-Thread device, bypassing Matter’s standard update mechanism in favor of a direct CoAP connection to nRF Cloud. We cover the full pipeline: checking for new versions, downloading firmware in 1024-byte blocks over CoAP, streaming it to flash, and safely swapping images with MCUboot.
Interrupt
by Memfault
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