| ??? 09/27/11 11:49 Read: times |
#183894 - yes, remove 485 Responding to: ???'s previous message |
Of course it is necessary to remove the RS485 chip. Otherwise it will try to keep RxD high while your cable tries to pull it low. Most probably one of them wins and the other one is destroyed. But the 'winner' will probably also be weakened and die soon. |
| Topic | Author | Date |
| ADUC 845 Bootloader | 01/01/70 00:00 | |
| TTL to 232 cable? | 01/01/70 00:00 | |
| RE:TTL to 232 cable? | 01/01/70 00:00 | |
| So how do you drive RESET? | 01/01/70 00:00 | |
| RE: So how do you drive RESET? | 01/01/70 00:00 | |
| 485 removed? | 01/01/70 00:00 | |
| RE:485 removed? | 01/01/70 00:00 | |
| yes, remove 485 | 01/01/70 00:00 | |
| RE:yes, remove 485 | 01/01/70 00:00 | |
| looks like a "throw together" | 01/01/70 00:00 | |
| RS485 removed... | 01/01/70 00:00 | |
| cable still working? | 01/01/70 00:00 | |
| RE:cable still working? | 01/01/70 00:00 | |
| Maybe I've missed something ... | 01/01/70 00:00 | |
| What? | 01/01/70 00:00 | |
| Sorry ... I hit "send" before I entered my message | 01/01/70 00:00 | |
| No more time today | 01/01/70 00:00 | |
| well, it seems you did it again | 01/01/70 00:00 | |
| It doesn't look that way from here ... | 01/01/70 00:00 | |
| ah an edit | 01/01/70 00:00 | |
| Yes ... I noticed a typo and it went from there. | 01/01/70 00:00 | |
| In studying the Data Sheet for this part | 01/01/70 00:00 | |
EA needs pull up | 01/01/70 00:00 |