Introduction
The purpose of this project was to simulate a deli counter that counts from 0 to 80 and restarts/ pauses at any point.
MultiSim Circuit
PLD Circuit
The difference between PLD and standard MultiSim is that PLD is 10 billion times worse to wire and can be uploaded to a chip, which eliminates the need for physical wiring. The pins assigned in the multisim pld relate to the physical chip, which is then wired to a board. Each pin is either input or output, depending
Bill of Materials
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Conclusion
- SSI is Small Scale Integration and MSI is Medium Scale Integration, this implies the difference in the number of chips and integrated circuits in each chip
- MSI limitations include the fact that it can not count up from any number except 0 and it can't count down.
- The Ripple Effect refers to the aspect of asynchronous counters to work only after the previous counter has been activated, which results in a delay
- First I wired a J/K flip-flop to a seven segment display and then wired an asynchronous counter into the output of the J/K so that when the Flip-flop counted from 0-9, it would tell the next display to go up one. This simulated the rising of the tens and ones place values in the counter. In order to detect 0-9 in the first flip-flop I wired the NOR gate to start at 0 and detect 10 so that it would restart at 9. Once it reset, it sent a clock input to the next counter and it would go up one. The other NOR gate is wired to the pause switch which pauses the value where it is currently. There is also a reset switch that resets the value to zero.
- I did not look clearly at my classmates projects