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4 bit down counter with D flip flop

Ozan Sezgen

Thread Starter

Ozan Sezgen

Joined Jan 3, 2018
1
Hi,
I want to make 4 bit down counter with D Flip flop and when reach 0000, it is stop but ı can’t. My sistem is again 1111 after 0000, and repetated.
Help me
 
WBahn

WBahn

Joined Mar 31, 2012
30,058
Ozan Sezgen said:
Hi,
I want to make 4 bit down counter with D Flip flop and when reach 0000, it is stop but ı can’t. My sistem is again 1111 after 0000, and repetated.
Help me
Click to expand...
Having a bit of trouble with your English. Do you mean that you constructed it and it DOES stop at 0000 but you WANT it to roll back to 1111? Or do you mean that it DOES roll back to 1111 and you WANT it to stop at 0000?

Since you haven't given us the schematic of how you connected these counters, there is no way (short of a crystal ball) for us to figure out why it is doing what it is doing.
 
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