| ??? 02/28/09 09:12 Read: times |
#162942 - see if this might help Responding to: ???'s previous message |
I faced the same problem with P89v51 before. lost many.
but as browsing through net I found a new method of programing in a forum. just follow these simple steps: 1>keep the micro controller Psen/!vpp pin pull high 2>open your system hyper terminal, seting: restore defaults, baud rate:2400. 3>press reset(do not release it). press 'U' on the keyboard 4> now release reset switch. you will see an echo in the hyerterminal. 5>open flash magic, set baud rate to 2400 and program the device. 6>reset the micro controller and the program starts running. ------------------------------ it looks awkward but, P89V51Rd2 never failed me after I started using this method. |
| Topic | Author | Date |
| P89V51RD2 ISP Fails after few hours..! | 01/01/70 00:00 | |
| Thermal problem, maybe? | 01/01/70 00:00 | |
| ?? | 01/01/70 00:00 | |
| Hot 7805 | 01/01/70 00:00 | |
| Cooling sprays. | 01/01/70 00:00 | |
| Info | 01/01/70 00:00 | |
| New Version | 01/01/70 00:00 | |
| Thanks Andrew..! | 01/01/70 00:00 | |
| That was FAST! | 01/01/70 00:00 | |
| Flashmagic release notes | 01/01/70 00:00 | |
| I know where the release notes are... | 01/01/70 00:00 | |
| Quite often not errors | 01/01/70 00:00 | |
| Event | 01/01/70 00:00 | |
| I see... | 01/01/70 00:00 | |
Yes... | 01/01/70 00:00 | |
| see if this might help | 01/01/70 00:00 |