Hi everyone,
I am new to this forum.
I am trying to use either P0 or P1 of the 89c52 for output. I suspect the problem might be the way I have
my setup.
I have both P0 and P1 going out to 74573 latches to hold the output values.
My program is simple:
mov p0,#F0h
mov p1,#F1h
I have the EA pin tied to high and using a 1uF for RST.
However, the output for both P0 and P1 is FF in both cases.
I'd appreciate any help as to what I am doing wrong.
Thanks in advance.