Toll Booth
Paper
The input variables are the open/close switches and limits, the outputs are motor close/open and gate closed/open, states are present (ex. going down) and next (ex. down).
The input variables are the open/close switches and limits, the outputs are motor close/open and gate closed/open, states are present (ex. going down) and next (ex. down).
MultiSim
we designed the state machine in PLD.
we designed the state machine in PLD.
Conclusion:
We were challenged to build a toll booth using vex and PLD. We designed and built a toll booth that would open and close a gate when triggered by a switch. When the up switch was on the gate would move up until it reached the limit
and when the close switch was on the gate would go down until the close limit. We used wires, resistors, chip, PLD board, and vex toll booth. We made a mistake by putting the chip on backwards and extra wires. We traced our bread boarding and found the extra wires. After we flipped the chip it worked perfectly. We simplified the outputs using the Boolean algebra and K-mapping. The toll booth cycles through each state in order of open, open limit, close, close limit. We learned the functions and uses of a state machine and to double check the wires and chips.
I learned that reading schematics takes practice. Now it is much easier for me to read compared to the beginning of the semester.
Next time I will make sure to put the chip on right.
Where are state machines used most?
We were challenged to build a toll booth using vex and PLD. We designed and built a toll booth that would open and close a gate when triggered by a switch. When the up switch was on the gate would move up until it reached the limit
and when the close switch was on the gate would go down until the close limit. We used wires, resistors, chip, PLD board, and vex toll booth. We made a mistake by putting the chip on backwards and extra wires. We traced our bread boarding and found the extra wires. After we flipped the chip it worked perfectly. We simplified the outputs using the Boolean algebra and K-mapping. The toll booth cycles through each state in order of open, open limit, close, close limit. We learned the functions and uses of a state machine and to double check the wires and chips.
I learned that reading schematics takes practice. Now it is much easier for me to read compared to the beginning of the semester.
Next time I will make sure to put the chip on right.
Where are state machines used most?