Bootloader
Technical notes tagged Bootloader.
STM32 CRC Peripheral: Hardware Checksum for Data Integrity, Bootloader Verification, and Communication
A practical register-level guide to the STM32 CRC calculation unit: polynomial configuration, data alignment, one-shot and streaming usage, bootloader integrity checks, and communication CRC.
STM32 System Memory Bootloader:Flashing Firmware Without a Debugger
STM32 System Memory Bootloader: access the ROM bootloader via USART, I2C, SPI, CAN FD, and USB DFU. Practical guide to production programming, field updates, and brick recovery without a debugger.
STM32 Flash Dual Bank Mode:Enabling Bank Swap for Safe OTA Updates on G4, L4 and U5
Configure STM32 dual-bank flash mode: option byte programming for bank organization, bank swapping via FLASH_OPTCR, interrupt vector table relocation, and a complete safe OTA update architecture with fallback on STM32G4/L4/U5.
STM32 Flash Memory: Writing, Erasing, and Managing Persistent Data at Runtime
A practical guide to on-chip flash programming on STM32: unlock sequence, register-level write/erase, sector vs page architecture, option bytes, EEPROM emulation, and production-grade patterns for F4, G0, and U5 series.