| Farshad Mohajeri 06/11/09 12:41 Read: 264 times |
#166022 - Tested both self-powered and bus-powered Responding to: Erik Malund's previous message |
Erik Malund said:
a properly terminated 485 with a few nodes REALLY suck power Erik My first design was self-powered, draining no power from USB bus. I changed it to bus-powered and the drained current is below the USB maximums. Either self-powered or bus-powered did not resolve my original problem. |
| Topic | Author | Date |
| FT232R USB to Serial | Farshad Mohajeri | 06/04/09 12:30 |
| Something silly ? | Steve M. Taylor | 06/04/09 13:36 |
| Capacitive Coupling | Farshad Mohajeri | 06/04/09 15:13 |
| Ideas | Steve M. Taylor | 06/04/09 15:51 |
| there is always SOME coupling... | Jan Waclawek | 06/04/09 15:52 |
| crash and reset the USB connection | Andy Neil | 06/04/09 16:24 |
| Very unlikely | Farshad Mohajeri | 06/04/09 16:30 |
| PC USB crash | Oliver Sedlacek | 06/05/09 03:06 |
| Isolated hub? | Andy Neil | 06/05/09 03:18 |
| PC Isolation? | Andy Neil | 06/05/09 03:20 |
| just blame the chip. | Erik Malund | 06/04/09 20:29 |
| Please see my other post with image (nt) | Farshad Mohajeri | 06/05/09 13:25 |
| is connector grounded on Your side? | Stefan KAnev | 06/05/09 01:42 |
| Huh? | Joseph Hebert | 06/05/09 09:21 |
| yes | Stefan KAnev | 06/05/09 09:38 |
| Floating the end of the cable shielding | Joseph Hebert | 06/11/09 11:37 |
| Was using wrong cable | Farshad Mohajeri | 06/11/09 12:36 |
| More information | Farshad Mohajeri | 06/05/09 13:21 |
| Hmm | Steve M. Taylor | 06/05/09 16:18 |
| isolation | Jan Waclawek | 06/06/09 04:29 |
| Update... | Farshad Mohajeri | 06/11/09 03:40 |
| USB and RS485 | Joseph Hebert | 06/11/09 11:44 |
| could this be it | Erik Malund | 06/11/09 12:01 |
| Tested both self-powered and bus-powered | Farshad Mohajeri | 06/11/09 12:41 |
| RS485 Converter | Farshad Mohajeri | 06/11/09 12:11 |
| el.circui? | Stefan KAnev | 06/11/09 13:59 |
| re: why? | Andy Peters | 06/19/09 12:22 |
| USB 1.1 | Farshad Mohajeri | 06/19/09 15:20 |
| re: USB 1.1 | Andy Peters | 06/19/09 16:34 |
popular culture | Jan Waclawek | 06/19/09 17:10 |