| ??? 06/11/07 15:08 Read: times |
#140550 - It depends on what you want Responding to: ???'s previous message |
Erik Malund said:
most modern chips have the ability to output the clock on a port pin. That is safe and need no 'test' or 'speculation'
Erik What, exactly, do you mean by "most?" If you had taken a look at the current offering, I'm not sure you'd have said that. Which ATMEL parts do that? Which Dallas parts? What about NXP? Are there ny others, aside from SiLabs? Why haven't you pointed that out in those recent instances when someone wanted to run two MCU's from one crystal? Of course, it's not applicable if one isn't using one of the MCU's that just happen to provide the oscillator as an output. The system clock certainly isn't what's wanted in this case. I'm merely interested in finding out about what the mfg's seem to omit from their datasheets. The X2 pin is generally (I expect there are exceptions) the output from the oscillator. If one buffers it with a CMOS gate, it could serve as an oscillator output. There are probably cases where this doesn't work. That's what I want to learn about. RE |
| Topic | Author | Date |
| a new challenge ... sort-of ... | 01/01/70 00:00 | |
| HC or AC gate input | 01/01/70 00:00 | |
| What I want is the result, not speculation | 01/01/70 00:00 | |
| why 'test', why 'speculate' | 01/01/70 00:00 | |
| It depends on what you want | 01/01/70 00:00 | |
| yes and yes and re the original question | 01/01/70 00:00 | |
| it all depends ... | 01/01/70 00:00 | |
| Results from Phoenix | 01/01/70 00:00 | |
| Gee ... thanks! | 01/01/70 00:00 | |
| Is that a LeCroy? | 01/01/70 00:00 | |
| Yep, it\'s a LeCroy | 01/01/70 00:00 | |
You'll love it. | 01/01/70 00:00 |