| ??? 04/06/07 13:45 Read: times |
#136740 - commentary - corollary Responding to: ???'s previous message |
When you do as you have described you save one crystal and a couple of capacitors.
I would strongly recommend against what this 'suggest' i.e. a separate crystal for each micro. Every instance I have been involved with that (initially) had two oscillators had some 'mysterious things' that related to the two oscillators 'biting' or 'beating' Whenever I need a common frequency I use a separate standalone oscillator and buffer it to the various points that it is needed on the board. I do the same without buffering (never had more than 4 loads). Erik |
| Topic | Author | Date |
| single crystal for two 89c52 | 01/01/70 00:00 | |
| I think you might find it doesnt work like that | 01/01/70 00:00 | |
| Schmitt trigger for crystal oscillator?? | 01/01/70 00:00 | |
| yeah possibly | 01/01/70 00:00 | |
| As it happens ... | 01/01/70 00:00 | |
| I yield to the voice of experience | 01/01/70 00:00 | |
| I was quite surprised, too! | 01/01/70 00:00 | |
| One quartz to | 01/01/70 00:00 | |
| not a good idea | 01/01/70 00:00 | |
| But how much do you save... | 01/01/70 00:00 | |
commentary - corollary | 01/01/70 00:00 |