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

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
Erik Malund
06/15/12 16:46
Read: 661 times
Mt Airy, Nc
USA


 
#187723 - what's on P2 is not that intersting initially, ...
Responding to: John Papas's previous message
But in circuits which have problem i do not take anything in Hyper Terminal and checking the circuit i measure something strange. I measure with oscillator the ports of high byte adress in Port2 and i see that all take some time level hig
what's on P2 is not that intersting, that can depend on the capabilities of your "oscillator" :) what's on the other side of the address latch is what you want to check first.

before reposting state what oscilloscope you have, and, if not a common brand, state the bandwidth and analog/DSO

Erik

List of 14 messages in thread
TopicAuthorDate
circuit repair, high level of all adress bytes      John Papas      06/15/12 15:16      
   what's on P2 is not that intersting initially, ...      Erik Malund      06/15/12 16:46      
      oszi daten      John Papas      06/18/12 12:16      
         depends on the app, but still      Erik Malund      06/18/12 12:51      
      we'll need a schematic, I believe.      Richard Erlacher      06/18/12 19:38      
   general guidelines      Mahmood Elnasser      06/18/12 22:45      
   RE      John Papas      06/19/12 03:39      
      Hardware check      Mahmood Elnasser      06/19/12 07:34      
      anyhow this begs a question      Erik Malund      06/19/12 09:24      
         Replay      John Papas      06/19/12 15:52      
            It wouldn't hurt to know how you've connected your hardware      Richard Erlacher      06/19/12 17:03      
               new      John Papas      06/20/12 07:12      
                  Just curious...      Hal Albach      06/20/12 07:34      
                     I have to agree with Hal, it can't be done ...      Richard Erlacher      06/20/12 09:13      

Back to Subject List