Instructions on how to use Jason Finn's memory voice recorder:

This file was code that Jorge Parra and others gave to our class. There are a few
things that you need to do to make it run.

First, since the device communicates through the rs232 port, you need a 9 pin connector
from the computer to the fpga. Second, a mic needs to be connected to the mic in port, 
and a set of speakers needs to be plugged into the "line out" output port. Next, a
"hyperterminal" program window needs to be opened with the setting set at 9600 baud rate,
and all the rest are default settings. Once this has all been done, the fpga is ready to
communicate with the computer.

The way this program runs is fairly simple. There are six buttons on the keyboard that the 
fpga will respond to. The enable buttons are 1 for mic mute on or off. 2 is used for erase
enable. 3 is used to enable the record or playback functions. Also there are 3 buttons that
are used to trigger the events. The lowercase "r" is used to start recording. The mic must be
on and the record enable button (3) must be on first. Also, the erase enable must be off. The
lowercase "p" is used to start the playback mechanism once the record has been done. This 
setup will record and playback about 15 seconds of recorded sound. To playback, you must have
recorded something to memory, have the record/playback enabled, and turn the mic off. Also, the
erase enable must be off. To erase the memory, lowercase "e" is used. To erase you must have 
erase enable on and record/playback enable off. Also, the memory must be full and you can
not either be in recording or playback mode. In addition, there are 4 led's used as indicators
of action on the fpga. Led 0 is used to indicate that the mic is on or off (on when lit). Led 1
is used to signify that recording or playback is currently taking place. Led 2 tells the user
that the memory is empty and is ready to be recorded to. Led 3 means that the memory is full
and it is ok to play it or erase it. That's it boys and girls. Have fun with Jason Finn's creation.