STM32Fx Microcontroller Custom Bootloader Development

Editorial course preview

What the public course preview actually shows

These 4 complementary views highlight concrete, legible examples from the course presentation.

A flowchart diagram titled Bootloader Code Flow Chart showing MCU reset, initialization steps for HAL, GPIO, UARTx, CRC, and Clock, followed by a decision diamond checking if a USB — Preview 1 of 4
This flowchart illustrates the bootloader code logic, starting with MCU reset and hardware initialization before deciding whether to read data via UART or jump to the user application.

Technical diagram illustrating the packet structure for the BL_ENDIS_RW_PROTECT bootloader command, detailing fields like Length to follow, Command Code, Sector number, Operation, — Preview 2 of 4
This technical diagram details the packet structure for the BL_ENDIS_RW_PROTECT command, specifying field lengths, operation codes, and the corresponding bootloader reply format.

A screenshot of the Keil uVision IDE displaying C source code for an STM32 bootloader, specifically showing logic for verifying CRC checksums and handling sector protection. — Preview 3 of 4
This screenshot displays the Keil MDK-ARM development environment with C source code implementing a bootloader function that verifies command packet integrity using CRC32 checksums.

A screenshot of an IDE showing C code for an STM32 bootloader and a console window displaying a menu of bootloader commands like BL_GET_VER and BL_FLASH_MASS_ERASE. — Preview 4 of 4
This screenshot displays the development environment with source code alongside a console interface listing available bootloader commands such as version retrieval and flash erase operations.