| ??? 06/19/12 04:45 Read: times |
#187785 - general guidelines Responding to: ???'s previous message |
Start with the oscillator, is it working? is it right frequency?
try toggling a pin of the micro to see if micro controller is working change MAX232 chip, since it connects to outside world, it is sensitive to damage. You can test with TX pin of micro with a scope to see output waveform, measure pulse width to verify baud rate. same with output of MAX232. Mahmood |
| Topic | Author | Date |
| circuit repair, high level of all adress bytes | 01/01/70 00:00 | |
| what's on P2 is not that intersting initially, ... | 01/01/70 00:00 | |
| oszi daten | 01/01/70 00:00 | |
| depends on the app, but still | 01/01/70 00:00 | |
| we'll need a schematic, I believe. | 01/01/70 00:00 | |
| general guidelines | 01/01/70 00:00 | |
| RE | 01/01/70 00:00 | |
| Hardware check | 01/01/70 00:00 | |
| anyhow this begs a question | 01/01/70 00:00 | |
| Replay | 01/01/70 00:00 | |
| It wouldn't hurt to know how you've connected your hardware | 01/01/70 00:00 | |
| new | 01/01/70 00:00 | |
| Just curious... | 01/01/70 00:00 | |
I have to agree with Hal, it can't be done ... | 01/01/70 00:00 |