| ??? 06/12/06 12:50 Read: times |
#118164 - also Responding to: ???'s previous message |
first verufy what Kalpak state above.
If that is the problem and you can not rectify it, MAXIM has "isolated" 485 transcievers that can handle a lot of common mode offset. But if this is timing, it may be due to the "most common oversight" Before turning the bus on last interrupt you have to wait 1/2 (I wait one full) bit time because the interrupt happens NOT at the end of the stop bit but in the middle. Turning the bus immediately on the interrupt could very well show what you see. Erik |
| Topic | Author | Date |
| Bad MAX 485 IC ? | 01/01/70 00:00 | |
| Voltage between Earth and Neutral.. | 01/01/70 00:00 | |
| also | 01/01/70 00:00 | |
| This may be one reason | 01/01/70 00:00 | |
| What's a DB9? | 01/01/70 00:00 | |
| Correction . DE9 - not DB9 | 01/01/70 00:00 | |
| Earthed Shell to the shield of cable | 01/01/70 00:00 | |
| Mild shocks... | 01/01/70 00:00 | |
| E1 is a pump controller | 01/01/70 00:00 | |
| Open "E1" and have a look at | 01/01/70 00:00 | |
| you missed one | 01/01/70 00:00 | |
| Only one reciever | 01/01/70 00:00 | |
| Yes. Only one receiver | 01/01/70 00:00 | |
all uC developers should be Boy Scouts | 01/01/70 00:00 |