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I need help, I'm lost. Here's what I'm given

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hegotdajacks

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1. Build a CRC generator circuit for a 16 bit message. The CRC equation is
X 5 + X 2 +1. The first 11 bits are data, and the CRC is the last 5 bits. Use
74LS86 (Quad XOR) gates and 74LS74 D Flip-Flops to build your CRC
generator. Connect the PRESET inputs to Vcc. The CLEAR inputs are
shared, and the CLOCK inputs are shared. Use your choice of gates to
determine a good or bad CRC. If the CRC is good, the results of the CRC
generator will be 0. Anything else indicates a CRC failure. Your circuit should
turn on a green LED if the data passes the CRC check, and a red LED if it fails
the check.

2. Build a 16 bit serial to parallel converter using 74LS164s. Use the parallel
outputs to drive the data into an LED array for display.

3. Connect the Data Source as indicated in the schematic that will be supplied
with the part. There will be several different Data Sources. Be sure to record
which Data Source you are using.

4. Once the circuit is powered, press the A to reset the data source. Press the
B to transmit each message. The B switch should also be connected to the
CLEAR inputs of the 74LS74s. There are a total of 10 messages. Record the
16 bit data and the CRC check LEDs for each message.

5. For your write-up, include a complete schematic with a timing diagram of CRC
generator for the 5th message of the 10 you recorded. Include all 10
messages with their CRC check results. Be sure to indicate which of the Data
Source chips that you used. For any message that failed the CRC check,
compute the correct CRC value for the first 11 bits recorded. Provide a
summary of the circuit and it operation along with a summary of the results.
 
We don't mind helping you but we won't do all of the work for you. Please post what you've already done including any ideas you've had and we might be able to make some suggestions. If you've got completely no idea then may be it's your lecuturer's fault and it isn't right that you make him/her look good by cheating and copying from the Internet.
 
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