| ??? 12/22/04 18:26 Read: times |
#83638 - Crystal oscillator reference. Responding to: ???'s previous message |
Hello Robert,
I get the impression there is a lot more to your problem(s) that what you have described (two UART's requirement, modification of printed circuit boards (PCB's) before they are received, two different processor, etc.) but this oscillator thing can be difficult especially if they don't start to oscillate upon power up. Here is a good reference source I have found helpful. http://www.ee.washington.edu/circuit_a...ISCHEM_009 Crystal Oscillator (From Goran Olsson) (Updated April 16, 1994). Regards, Charles Bannister |
| Topic | Author | Date |
| A little O/T help with UART Crystal | 01/01/70 00:00 | |
| Rethink | 01/01/70 00:00 | |
| Using current limiting resistor? | 01/01/70 00:00 | |
| Track cuts x200 | 01/01/70 00:00 | |
| I see no way | 01/01/70 00:00 | |
| full chip numbers | 01/01/70 00:00 | |
| Rp is missing with TI's chip! | 01/01/70 00:00 | |
| Thanks Kai | 01/01/70 00:00 | |
| Linear operation | 01/01/70 00:00 | |
| Resolution - I think..... | 01/01/70 00:00 | |
| Part Numbers | 01/01/70 00:00 | |
| the resistor | 01/01/70 00:00 | |
Both: Limiting and phase shifting | 01/01/70 00:00 | |
| Crystal oscillator reference. | 01/01/70 00:00 | |
| Thanks. | 01/01/70 00:00 |