Commands: 0x01=Read, 0x02=Write, 0x03=Erase
Responses: 0xA1+data, 0xA2, 0xA3
Note: Ensure the STM32 firmware is compiled with EXAMPLE_02_FLASH_READ_WRITE_ERASE defined in examples.h before using this HTML interface.
Reads and writes are performed on REGION_SETTINGS.