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

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
11/06/02 21:00
Read: times


 
#32083 - INT1 doesn\'t go low
And again I'm facing a problem:

I connected 4 buttons with an AND CMOS chip to port 3.3 (INT1). But if I press a button, the line only goes as low as 2.3 V, not 0.x.

To check whether the problem is the AND or the 8051, I connected a resistor between them. Result: The AND goes low, the 8051 stays at 2.3 V.

What's wrong?

List of 8 messages in thread
TopicAuthorDate
INT1 doesn\'t go low            01/01/70 00:00      
RE: INT1 doesn\'t go low            01/01/70 00:00      
RE: INT1 doesn\\\'t go low            01/01/70 00:00      
RE: INT1 doesn\'t go low            01/01/70 00:00      
RE: INT1 doesn\'t go low            01/01/70 00:00      
RE: INT1 doesn\\\'t go low            01/01/70 00:00      
RE: INT1 doesn\\\'t go low            01/01/70 00:00      
RE: INT1 doesn\\\'t go low            01/01/70 00:00      

Back to Subject List