| ??? 04/23/10 07:42 Read: times |
#175309 - Not really Responding to: ???'s previous message |
Sandu Buraga said:
Two crystal selectable with a jumper could be a solution. That simply allows you to change crystals (or clock sources) - it doesn't actually manage the changeover from the "programming" crystal to the "running" crystal - does it? Of course, it might be sufficient to simply have a set of user instructions on changing the jumper - in other words, the changeover is managed manually... Another solution is to use a slot and just change the crystal. As above. |
| Topic | Author | Date |
| crystal oscillator | 01/01/70 00:00 | |
| Research needed. | 01/01/70 00:00 | |
| comments, answers | 01/01/70 00:00 | |
| Datasheets sometimes not available | 01/01/70 00:00 | |
| Why would anyone use a part with no datasheet? | 01/01/70 00:00 | |
| I can quote you, Richard | 01/01/70 00:00 | |
| People regularly ask for help with unknown components | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
| Good | 01/01/70 00:00 | |
| b) is not correct | 01/01/70 00:00 | |
| how do you manage the change of crystal?! | 01/01/70 00:00 | |
| Not really | 01/01/70 00:00 | |
| Re: Not really | 01/01/70 00:00 | |
| That's right! | 01/01/70 00:00 | |
| BAUD RATE SETTING | 01/01/70 00:00 | |
| Start a new thread! | 01/01/70 00:00 | |
| Well done! | 01/01/70 00:00 | |
| My Suggestion | 01/01/70 00:00 | |
| sum it up | 01/01/70 00:00 | |
| No, they don't | 01/01/70 00:00 | |
| I think you need some more clarification | 01/01/70 00:00 | |
There is NO need ... | 01/01/70 00:00 |