| Aleksandar Stancic 06/22/09 14:10 Read: 146 times Serbia |
#166366 - no ground plane Responding to: Kai Klaas's previous message |
I have a two layer board, it does have GND polygon planes on both sides,
and the freq will be 20MHz. 48MHz is just a way to test faster UART programming, see: http://groups.google.com/group/com...b0d43b5d5# |
| Topic | Author | Date |
| AT89C51ED2 changing speed on its own | Aleksandar Stancic | 06/21/09 03:21 |
| apply proper reset | Jan Waclawek | 06/21/09 05:37 |
| apply proper reset | Aleksandar Stancic | 06/21/09 12:21 |
| then that's R0 not R1 | Jan Waclawek | 06/21/09 14:57 |
| MAX1232 + 4k7 pull-up | Kai Klaas | 06/22/09 07:26 |
| I beliebe this chip has a built-in watchdog and thus ... | Erik Malund | 06/22/09 09:43 |
| I don't like those on-chip watchdogs and Vcc monitors | Kai Klaas | 06/22/09 10:35 |
| Should be always on | Per Westermark | 06/22/09 10:47 |
| external vs internal | Erik Malund | 06/22/09 13:18 |
| .. | Aleksandar Stancic | 06/22/09 13:45 |
| Ground plane? | Kai Klaas | 06/22/09 14:01 |
| no ground plane | Aleksandar Stancic | 06/22/09 14:10 |
| choose a "magic" frequency crystal ... | Jan Waclawek | 06/22/09 15:00 |
20MHz and 57600 | Aleksandar Stancic | 06/22/09 17:33 |