| ??? 05/22/06 17:17 Read: times |
#116860 - I DO know that Erik - Responding to: ???'s previous message |
"you did not read did you? It states all over the NoTouch documents: "must be implemented at first load"."
Geesh Erik - I know very well that the No Touch must be implemented first. I said "Once I get more familiar with this new chip I'll put Erik's famous "No Touch" backdoor ISP entry or UART break condition into the code. " To add your No Touch feature requires knowledge of the IAP instructions for this micro - which I have not yet taken the time to learn. Since the data sheet makes it clear that this micro can be put back into ISP mode using just the reset line I didn't bother. Since the 3 pulse method requires access to the reset line, I was planning to add the No Touch feature or UART break feature (which seems almost identical no No Touch) later for convenience so as not to have to bring the reset line out of the hardware. I will look at JG's excellent suggestion to check the rise times of Vdd and the reset line. Regards, Bert |
| Topic | Author | Date |
| 3 pulse ISP entry for P89LPC938 | 01/01/70 00:00 | |
| 3-pulse | 01/01/70 00:00 | |
| you did not read did you? | 01/01/70 00:00 | |
| P89LPC9408 Programming | 01/01/70 00:00 | |
| how can down under be over the rainbow? | 01/01/70 00:00 | |
| Thanks JG - It works now | 01/01/70 00:00 | |
| 3pulse circuit | 01/01/70 00:00 | |
| LPC900 ISP and IAP etc | 01/01/70 00:00 | |
| it IS in ISP mode the first time | 01/01/70 00:00 | |
| LPC900 ISP and IAP etc | 01/01/70 00:00 | |
| Link to 3 pulse circuit using 89C2051 | 01/01/70 00:00 | |
| Oh, yes. | 01/01/70 00:00 | |
| I DO know that Erik - | 01/01/70 00:00 | |
| actually it does not | 01/01/70 00:00 | |
| Break feature | 01/01/70 00:00 | |
P89LPC938 | 01/01/70 00:00 |