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Unlock STM8L052C6T6 Secured MCU Flash Firmware in the format of binary, the fuse bit of microcontroller stm8l052 will be broken and the embedded program can be readout from processors’ stm8l051c6 memory.

Option bytes contain configurations for device hardware features as well as the memory protection of the device. They are stored in a dedicated block of the memory.

Except for the ROP (read-out protection) byte, each option byte has to be stored twice, in a regular form (OPTx) and a complemented one (NOPTx) for redundancy.

Option bytes can be modified in ICP mode (via SWIM) by accessing the EEPROM address shown in Table 12: Option bytes below. Option bytes can also be modified ‘on the fly’ by the application in IAP mode when clone stm8s105k4 ic mcu flash code, except the ROP option that can only be modified in ICP mode (via SWIM).

Refer to the STM8S Flash programming manual (PM0051) and STM8 SWIM communication protocol and debug module user manual (UM0470) for information on SWIM programming procedures.

BL[7:0] Bootloader option byte

For STM8S products, this option is checked by the boot ROM code after reset. Depending on the content of addresses 0x487E, 0x487F, and 0x8000 (reset vector), the CPU jumps to the bootloader or to the reset vector. Refer to the UM0560 (STM8L/S bootloader manual) for more details. For STM8L products, the bootloader option bytes are on addresses 0xXXXX and 0xXXXX+1 (2 bytes). These option bytes control whether the bootloader is active or not. For more details, refer to the UM0560 (STM8L/S bootloader manual) for more details.