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categoryهندسة الحاسبات
schoolبكالوريوس
event_available2026-07-15
السؤال
Transcribed Image Text:
Assuming 8088 based system solve the following question:
Design a complete 8088 system hardware that has the following components
a. RAM 256 K RAM that starts at address 00000H. You have only one 128K and 32K
ICs.
b. 12K8 ROM composed of 32K ICs ending at address FFFFF.
c. 8x8 keyboard
d. 8 digits Multiplexed seven segment display
e. Two stepper Motors. Motor 1 is 100Step and Motor2 is 200Step
Show clearly the following components:
1. The Address decoding for the Memory and I/O devices (you must define the addresses)
2. The hardware required for each component.
3. Write the software to read and denounce your keyboard. Then show the entered value on
the seven-segment display (suppose the read numbers are between 0-F only).
4. Write a Subroutine which turns Stepper Motorl to a given angle Theta read from the
keyboard.
5. Suppose that we added a port with 4 push button keys (inc, dec, right, left), show the
required hardware change.
6. Write the software that identifies the pressed button and denounces the key: When inc/dec
is pressed, increment/decrement the speed of Stepper motor 1. While, when right/left
pressed, change its direction.
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