??? 06/29/04 22:45 Read: times |
#73403 - RE: p89v51rd2 secutity bit - serial number Responding to: ???'s previous message |
If you have only set the security bit then you can erase block 0.
If you have set a serial number then you cannot erase block 0. Instead you must either verify the serial number to unlock the device, or reset the serial number, which will erase block 0 and the current serial number. That is my understanding of how it works. Andy ESAcademy |