Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
04/18/07 12:03
Read: times


 
#137416 - Is this all about 'running without a crystal'?
Responding to: ???'s previous message
Another interseting point which came in this discussion is that -- is it possible to connect a resistance between xtal1(i.e xtal1 input pin of microcontroller) and xtal2(i.e xtal2 output pin of microcontroller).
where on earth did you get that idea from?

Can we get an output frequency from xtal2 pin of controller without giving the input at xtal1?
yes, if you attach a crystal and burden caps.

Is this all about 'running without a crystal'?

if so, look for chips capable of that (e.g. SILabs, Philips LPC) but if you do that be careful if you want serial comms

Erik





List of 17 messages in thread
TopicAuthorDate
DS89C430 - - - - -- ALE SIGNAL            01/01/70 00:00      
   Please explain...            01/01/70 00:00      
      explained here            01/01/70 00:00      
   please explain            01/01/70 00:00      
      he probably uses an external crystal oscillator...            01/01/70 00:00      
      Oscillator Feedback Resistor            01/01/70 00:00      
   a thought and a question            01/01/70 00:00      
      There will be ALE on MOVX cycles            01/01/70 00:00      
      pls read this            01/01/70 00:00      
         That\'s not what I said ...            01/01/70 00:00      
         Is this all about 'running without a crystal'?            01/01/70 00:00      
   still at same stage            01/01/70 00:00      
      Please explain ... What do you mean?            01/01/70 00:00      
      Reflections upon your described predicament            01/01/70 00:00      
         do you think he's using a 'scope?            01/01/70 00:00      
         The rigth person            01/01/70 00:00      
            late response ...            01/01/70 00:00      

Back to Subject List