| ??? 04/19/06 13:44 Read: times |
#114523 - yes'es and no's Responding to: ???'s previous message |
you need no extra pin on the processor for the "Auto" option, it's still just Rx and Tx (and, of course, /PSEN and RESET)! The "extra" signals come from the PC's COM port... please have a look on the diagram in the appnote once more.
the "extra" signals still need to be connected to a pin However, you still might need an A) emergency solution and also for the B) "first time" programming A) "the backdoor" takes care of that. B) a factory fresh chip IS in ISP mode Erik |
| Topic | Author | Date |
| AT89C51ED2 ISP Hardware configuration | 01/01/70 00:00 | |
| from the source | 01/01/70 00:00 | |
| I will try it. | 01/01/70 00:00 | |
| because it would make datasheets books | 01/01/70 00:00 | |
| family documents | 01/01/70 00:00 | |
| Philips is good in this respect | 01/01/70 00:00 | |
| it's not philips | 01/01/70 00:00 | |
| ISP circuit | 01/01/70 00:00 | |
| Manual ISP | 01/01/70 00:00 | |
| use NoTouch | 01/01/70 00:00 | |
| handshake? | 01/01/70 00:00 | |
| yes'es and no's | 01/01/70 00:00 | |
| nos and yes's | 01/01/70 00:00 | |
| location dependent | 01/01/70 00:00 | |
| unlikely? | 01/01/70 00:00 | |
make a .bat file | 01/01/70 00:00 |