Design a digital security keypad. Draw the block diagram and state diagrams for your system. Do NOT write Verilog. Your system should include the following functionality: The password (key) is entered on eight switches (SW). After the user has set the switches, they can push Button 1 (BTN1) to check password and try to unlock the system. ● O If the user entered key matches the password stored in the system the lock is opened (LOCK=0), and seven segment display shows the message “OPEN”. O If the user entered an incorrect password the message displayed is "Err", wait 5 seconds, and then go back to the locked state. ● ● If the user corrected unlocked the system, they can then use Button 2 (BTN2) to save the new value on the switches (SW), as the new password for the system. If the user is unsuccessful three consecutive times in trying to unlock the system, and alarm is sounded (ALARM=1) and the system is locked down. When the user presses BTN1 from the unlocked state the system then goes back to a locked state.
Design a digital security keypad. Draw the block diagram and state diagrams for your system. Do NOT write Verilog. Your system should include the following functionality: The password (key) is entered on eight switches (SW). After the user has set the switches, they can push Button 1 (BTN1) to check password and try to unlock the system. ● O If the user entered key matches the password stored in the system the lock is opened (LOCK=0), and seven segment display shows the message “OPEN”. O If the user entered an incorrect password the message displayed is "Err", wait 5 seconds, and then go back to the locked state. ● ● If the user corrected unlocked the system, they can then use Button 2 (BTN2) to save the new value on the switches (SW), as the new password for the system. If the user is unsuccessful three consecutive times in trying to unlock the system, and alarm is sounded (ALARM=1) and the system is locked down. When the user presses BTN1 from the unlocked state the system then goes back to a locked state.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:. Design a digital security keypad. Draw the block diagram and state diagrams for your
system. Do NOT write Verilog.
Your system should include the following functionality:
The password (key) is entered on eight switches (SW).
After the user has set the switches, they can push Button 1 (BTN1) to check password
and try to unlock the system.
●
●
O
If the user entered key matches the password stored in the system the lock is opened
(LOCK=0), and seven segment display shows the message “OPEN”.
O
If the user entered an incorrect password the message displayed is “Err”, wait 5 seconds,
and then go back to the locked state.
●
If the user corrected unlocked the system, they can then use Button 2 (BTN2) to save the
new value on the switches (SW), as the new password for the system.
If the user is unsuccessful three consecutive times in trying to unlock the system, and
alarm is sounded (ALARM=1) and the system is locked down.
When the user presses BTN1 from the unlocked state the system then goes back to a
locked state.
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