Square wave using 8155

Thread Starter

YoGMan

Joined Sep 20, 2017
76
Hello guys, I just came across this ( picture below ) for generating a square wave using 8155 . The 8155 decrements the count by 2 after each clock pulse - but then , why the count isn't multiplied by two ? ( in Mode1 , the output is HIGH for half the count and LOW for the other half )
31890653_373909186441679_6811868726170746880_n.jpg
31935511_373909079775023_6655305065013706752_n.jpg
 
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