IMPLEMENTASI MIKROPROSESSOR Z80 PADA PENGENDALI LIFT

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Microprocessor is some one aritmatic and logic more ever one control materialization in have LSI chip. With microprocessor can plant control system lift three floor with stepper motor movement. In to stake out program control to use hard ware GMS-1 single board which bases microprocessor Z 80.
Hardware among other to consist of microprocessor Z 80, ROM 2561, RAM 6116, PPI 8255, CTC Z 80, and UPI 8041, where as software to use machine language is assambler. Before use to planning, first of all to determine problem and analized problem, also to make flowchart, to stake out program and last writen program to application.
Before, have maked program, the first of all to determine output, to consise of 4, that is data on address 1F00, 1F01, 1F02, and 1F03. Input from voltage which to realized by way of indicator switch floor 1, floor 2, floor 3, whith switch to head floor 1, floor 2, and floor 3.
Open-close doors mechanism lift no use program from microprocessor Z 80, but to use circuits J-K flip-flop 74LS73 to open door and closing doors used timer 555.