| ??? 04/11/05 15:07 Read: times |
#91377 - re Responding to: ???'s previous message |
I don't see a problem with your command line. I would check the power supply arrangement. Do you see ripple, glitches, etc. at the VCC or GND pins? What about the XTAL pins?
Do the pins on the RD2 have the required voltages? Did you remember to pull P2.6 AND P2.7 high during reset when entering ISP mode? All these things could cause unstable operation of the device. Andy |
| Topic | Author | Date |
| P89C51RD2BN ISP stopped working | 01/01/70 00:00 | |
| I guess you lost the boot vector | 01/01/70 00:00 | |
| no more lost vectors | 01/01/70 00:00 | |
| I think I know the reason | 01/01/70 00:00 | |
| Erase option.. | 01/01/70 00:00 | |
| I take this back | 01/01/70 00:00 | |
| Not this one then ? | 01/01/70 00:00 | |
| message received..... | 01/01/70 00:00 | |
| Incomplete program download | 01/01/70 00:00 | |
| Again i lost one more P89C51RD2HBP | 01/01/70 00:00 | |
| No such danger on the Atmels | 01/01/70 00:00 | |
| Atel v.s. Philips | 01/01/70 00:00 | |
| lose none - EVER | 01/01/70 00:00 | |
| re | 01/01/70 00:00 | |
re | 01/01/70 00:00 |