| ??? 02/08/05 18:07 Modified: 02/08/05 18:16 Read: times |
#86947 - Update Responding to: ???'s previous message |
I just made another PCB using Kepner-Trago (sp) principles (basically, what was different on the new PCB's!) with a view to trying some of the suggestions here. The major difference was that on the original I'd put the 16550 in a socket - which I hadn't on the failing boards. So, on the new board I used a socket, and I think you can probably guess the rest.
So I figure I must have popped the other UARTS by overheating them with my welding rod (oops, sorry, soldering iron). >>edit - but that still doesn't explain why the emulator worked. I'll update when I've tested a bit more..... Thanks all, Rob. |
| Topic | Author | Date |
| Odd UART problem. | 01/01/70 00:00 | |
| Parity enabled? | 01/01/70 00:00 | |
| Understood.... | 01/01/70 00:00 | |
| questions | 01/01/70 00:00 | |
| In reply to Erik | 01/01/70 00:00 | |
| time for the ol' scope | 01/01/70 00:00 | |
| Can I borrow yours? | 01/01/70 00:00 | |
| re: bad data | 01/01/70 00:00 | |
| re: bad data | 01/01/70 00:00 | |
| Good idea | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| bad/worn out socket? | 01/01/70 00:00 | |
| emulator vs chip - experience | 01/01/70 00:00 | |
| re:emulator vs chip - experience | 01/01/70 00:00 | |
| Baud rate | 01/01/70 00:00 | |
| Ah, good info! | 01/01/70 00:00 | |
| can you | 01/01/70 00:00 | |
| re: bad data | 01/01/70 00:00 | |
| Which data does that loop? | 01/01/70 00:00 | |
| re:Which data does that loop? | 01/01/70 00:00 | |
| Update | 01/01/70 00:00 | |
| re: update | 01/01/70 00:00 | |
| GND connection? | 01/01/70 00:00 | |
Meters OK | 01/01/70 00:00 |