flip flops

[vptran84]

hi,

can someone give me hints on how to design a counter that counts
0->5->2->7->4->1->6->3->0 using T-flip flop and some gates? I've been looking at this problem but i dont know where to start...

thanks

vinh

[david90]

look in rafi's book. There is an example that is very similar to this question. Just follow the steps and the answer will come out. No thinking neccessary.

Start by drawing a state table of the counter then find ff input.

[turin]

Don't think of it as a counter, think of it as an n-bit state machine. Then, just assign the states to the numbers you want. The rest is just minimization or consistency (whatever your preference) of gates (assuming you're just going to use those 14 pin gate packages).