| ??? 03/31/09 21:08 Modified: 03/31/09 21:09 Read: times |
#164086 - I don't think so Responding to: ???'s previous message |
I've done a dozens of '51 projects over last 20+ years, using many derivatives but never hit a problem like this one...Did anybody try to use T89C51CC01 with external code memory at all?
- Dejan P.S. all signals are connected "by-the-book" and strapping EA pin to VCC causes CPU to run from internal flash without any problems... |
| Topic | Author | Date |
| Problems running T89C51CC01 from ext. memory | 01/01/70 00:00 | |
| test mode? | 01/01/70 00:00 | |
| I don't think so | 01/01/70 00:00 | |
| Maybe - protected ; | 01/01/70 00:00 | |
| Maybe not | 01/01/70 00:00 | |
| but you *can* try it...? | 01/01/70 00:00 | |
| I did | 01/01/70 00:00 | |
| What You did exactly? | 01/01/70 00:00 | |
| Erased lock bits | 01/01/70 00:00 | |
bad chip or ... | 01/01/70 00:00 |