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I need help resetting my bidrectional shift register.

my task was to create a Christmas controller that turned on LED lights right and left directions. But instead of LED lights, a timing diagram is used and a high or low will help identify if its ON.

My professor wants to see 2 full cycle, but because I don't know how to reset the 1 back into the circuit, I am lost.

Please help me

Try something like the attached, using the inverse of all the Q's through inverters and AND gates gives you your first HIGH to start the cycle. you can then mirror this to the other direction. Hope this helps

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