| ??? 07/17/08 07:31 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#156790 - DTR current Responding to: ???'s previous message |
If you insert a 1k resistor in line with the modem DTR input you can see whether it's the modem that's pulling the signal down to 0.7V. |
| Topic | Author | Date |
| Strange "digital" voltages | 01/01/70 00:00 | |
| still have hair left??? | 01/01/70 00:00 | |
| Are you looking at backdriving? | 01/01/70 00:00 | |
| Driver chip | 01/01/70 00:00 | |
| Sometimes, the solution is easy... | 01/01/70 00:00 | |
| Have you washed the board? | 01/01/70 00:00 | |
| SAME modem? | 01/01/70 00:00 | |
| Sounds to me like your trying to drive an output. | 01/01/70 00:00 | |
| DTR current | 01/01/70 00:00 | |
| Quiet in here ? | 01/01/70 00:00 | |
He's busy fixing it! | 01/01/70 00:00 |