Protoboard activity: Design a 2-bit counter, with one input M, using J-K flip-flops. • If M=0, the counter performs binary down counting 00à11à10à01à00 • If M=1, the counter performs Gray counting 00à01à11à10à00. Display the output. Hint: Use the 7 segment display/driver board for the display, switch for M, and the timer board to generate clock signal with 1Hz. Some general suggestions: • Use LogicWorks to develop the circuit. Record the pin numbers of the chips you use. • Check and verify as you build. • Have the non-builder check wiring. Extra wires are harder to find than missing wires. • Check all power and ground connections. • Use a "Divide and Conquer": Start with what you know is working, such as the input, and independently test the output or other sections. • Use the logic probe to see what you have.

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we can all learn from our past mistakes because we all have different ways of learning different types of techniques. my way may or may not another classmate remember and have the repetition to acknowledge such standard. such as remembering acronyms. using abbreviations to us remember keep things in order in our memory. this us figure out what comes next in the sequence. if so, what we have is a sentence of just letters all in caps. we either know the meaning or have no idea what it stands for. most of the time we know the meaning and context. but most of us who don't know, should learn by having a quick glance at what needs to be remembered. such as repetition in the memory for acronyms. one way that me, is the fact that i'm always doing math and english assignments. so we have to remember specific meanings such as soapstone for documents, such as citing correctly. or pemdas for doing the equations correctly, even if it's the super long way. this works for everyone. you just have to find what works for you by practicing and repetition daily.