Hi, im a high school portuguese student of Informatics and i have some jobs to do in order to obtain success to DIGITAL SYSTEMS.
I have already made the other tasks, but the last one is a jigzaw that is blowing my brain apart.
I have to make in digital works 2.0 a circuit that has 2 sensors.
S1 - counts the number of persons that pass by him towards a stair-case rolling.
When more than 15 persons passed by S1 , but didnt pass by the end of the rolling stair-case which has a S2 sensor, the stair-case has to stop moving. When some of the persons in excess leaves through the S2 sensor and count falls under 15, the stair continues to roll.
I dont have a single clue on how to make this.
Do i need to use a ADDER, or a Sinchronos counter based in flip flops, or Multiplexers, or something else, i realy JUST DONT KNOW.
my job delivery date expires Sunday 29 ate 20h pm and i need this made to have a good grade.
Please, someone enlight me the way...
acastro...
I have already made the other tasks, but the last one is a jigzaw that is blowing my brain apart.
I have to make in digital works 2.0 a circuit that has 2 sensors.
S1 - counts the number of persons that pass by him towards a stair-case rolling.
When more than 15 persons passed by S1 , but didnt pass by the end of the rolling stair-case which has a S2 sensor, the stair-case has to stop moving. When some of the persons in excess leaves through the S2 sensor and count falls under 15, the stair continues to roll.
I dont have a single clue on how to make this.
Do i need to use a ADDER, or a Sinchronos counter based in flip flops, or Multiplexers, or something else, i realy JUST DONT KNOW.
my job delivery date expires Sunday 29 ate 20h pm and i need this made to have a good grade.
Please, someone enlight me the way...
acastro...