| ??? 01/30/09 14:50 Modified: 01/30/09 14:51 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#161841 - ISP protection by serial number... Responding to: ???'s previous message |
... does work, just after programming it into the chip, you must clear it from FlashMagic's input window, and reset the chip... otherwise FlashMagic would use it automatically to "unlock" the chip next time you attempt to read it.
But you might be better off upgrading to version 7 of the bootloader, which allows you to set it into "application only" mode (i.e. bootloader never gets invoked). You can download the version 7 here . It is a zip file which contains also the instructions. You cannot simply leave the boot block unprogrammed. Read also this thread: http://www.8052.com/forum/thread/136077 JW PS. Michael: Of course, there is no ABSOLUTE protection against piracy, but one shall strive to do his best, if it is a real threat to his business/living. |
| Topic | Author | Date |
| 89V51RD2 Code securtiy problem | 01/01/70 00:00 | |
| Cast Block | 01/01/70 00:00 | |
| A better solution | 01/01/70 00:00 | |
| Strong or weak attempt.... | 01/01/70 00:00 | |
| Banking terminals | 01/01/70 00:00 | |
| banking terminals | 01/01/70 00:00 | |
| ISP protection by serial number... | 01/01/70 00:00 | |
| If I can get bootloader source to customize | 01/01/70 00:00 | |
| upgrade | 01/01/70 00:00 | |
| Thanks Problem Solved | 01/01/70 00:00 | |
| Yeah.. NXP should clarify | 01/01/70 00:00 | |
| answer | 01/01/70 00:00 | |
Decision | 01/01/70 00:00 |