To disable the read protection from the embedded SRAM: ● Erase the entire option byte area. As a result, the read protection code (RDP) will be 0xFF. At this stage the read protection is still enabled. ● Program the correct RDP code 0x00A5 to unprotect the memory. This operation first forces a Mass Erase of the main Flash memory. ● Reset the device (POR Reset) to reload the option bytes (and the new RDP code) and, to disable the read protection.