Need Help with School Lab

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dacooldude

Joined: 03 Nov 2009
Posts: 4
Location: India

03 Nov 2009 19:51 Need Help with School Lab

Hello Everyone.
I am doing Computer Engineering at Purdue Univ.
In the lab class for Digital System design course, we have to program PLD's (GAL16V8D , GAL20v18D, GAL22v10) using ABEL lanugage, to do an assignment.
We can use only 1 of each kind.

Experiment Description:
In this experiment, you will design and test a programmable digital combination lock.
the lock designed here will input a programmable binary sequence
(specified using a DIP switch). Further, the combination “data” (consisting of a pattern of 0’s
and 1’s) will be entered using a pair of pushbutton switches (which will also serve as clocking
signals).

The main thing I cannot implement is about the input of numbers from the to the PLD from the DIP switch. How will the PLD store the input?