STM32F411xx Custom Bootloader to update on-chip firmware, configure flash sector protection, and read flash sector status using UART.
| Command | Command Code | Description |
|---|---|---|
| CMD_BL_GET_VER | 0x51 | Read the bootloader version from the MCU |
| CMD_BL_GET_HELP | 0x52 | Get help on the commands supported by the bootloader |
| CMD_BL_GET_CID | 0x53 | Read the MCU chip identification number |
| CMD_BL_GET_RDP_STATUS | 0x54 | Read the Flash read protection level |
| CMD_BL_GO_TO_ADDR | 0x55 | Jump the bootloader to the specified address |
| CMD_BL_FLASH_ERASE | 0x56 | Mass erase or sector erase of the user Flash |
| CMD_BL_FLASH_WRITE | 0x57 | Write to the user Flash of the MCU |
| CMD_BL_ENABLE_RW_PROTECT | 0x59 | Enable read/write protection on different sectors of the user Flash |
| CMD_BL_DISABLE_RW_PROTECT | 0x5A | Disable read/write protection on different sectors of the user Flash |
| CMD_BL_READ_FLASH_SECTOR_STATUS | 0x5B | Read the protection level status of all Flash sectors |
| CMD_BL_OTP_READ | 0x5C | Read the MCU OTP settings |