The option bytes WRP1A_STRT = 0xFF, WRP1A_END = 0xFF, WRP1B_STRT = 0xFF and WRP1B_END = 0xFFwere programmed initially, then it got changed to WRP1A_STRT = 0xFF, WRP1A_END = 0xFF, WRP1B_STRT = 0xFF and WRP1B_END = 0xFF. I don't know when and why it...