Article The security lock bit of DS89C430 was accidentally set the to Level 3 and the program cannot be downloaded. Is there any way to erase the lock bits?

The DS89C430 is equipped with in-application programming mode for direct operation on flash memory without being affected by lock bit.
You can try to enter the in-application programming mode and use Erase Security Block command to achieve this operation.

Before You Switch


Switching languages will make ADI Explorer unavailable. Resume your session by switching back to English and reopening ADI Explorer.