30 Dec
2002
30 Dec
'02
4:55 a.m.
On Mon, 30 Dec 2002, Sellam Ismail wrote:
Now, I seem to have a problem with CA1. If I have CA1 connected to
ground, it's stable. As soon as I remove it from ground and it's
floating, CA1's state starts to fluctuate wildly for a little over 2
seconds.
Try tieing it to +5 via a 10K resistor, so it's either solidly a 0 or
solidly a 1. Many digital chips get cranky when their pins 'float'.
Sounds like what's going on. Vide Lancaster - TTL and CMOS Cookbooks for
no-bs info on interfacing.
Cheers
John