A state table with all don't cares doesn't sound like a meaningful circuit. Could you elaborate on what this is and how you got it?I've been preparing myself for the exam and I'm trying to design a binary counter using jk flip flops. now the problem is that on one of the k-maps I've got only don't care k's so I'm not sure what the equation for K would be in that case :S
We're not mind readers. You need to show us what you've got and what you are trying to do before we can provide much in the way of meaningful feedback.I've been preparing myself for the exam and I'm trying to design a binary counter using jk flip flops. now the problem is that on one of the k-maps I've got only don't care k's so I'm not sure what the equation for K would be in that case :S
What is this A that you speak of? Again, we are NOT mind readers! And what is a "fundamental J" or a "fundamental K"?my scanner's broken but I'll try my best to explain. I'm supposed design a three bit binary counter using jk flip flops in the sequence from 000 to 111. Once the counter reaches 111 it's supposed stay at 111. so for the control of A I can see that I have a fundamental J so it's good for my equation for J. but for K I only have don't cares. if you'd look at the transition table for the jk flip flops you can see that to have a fundamental K you'd need the out put to go from 1 to 0...now for A that doesn't happen in this sequence as when the counter reaches 111 it stays there without A going back to 0.
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