https://sudonull.com/bare-metal-firmware-stm32f103-without-cubemx
Create a minimal STM32F103C8T6 project: linker script, startup, GPIO, TIM2. Blinking LED and 1s delays. For middle/senior embedded developers.
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https://sudonull.com/mbr-324-bytes-stm32f407ve-compact-bootloader
Minimal primary bootloader for STM32F407VE (324 bytes). Vector validation, jump to 0x08060000, LED blinking on error. Code + Makefile for ARM-GCC.
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