State Machine Design with Programmable Logic

1. Introduction
This experiment involves the design of circuitry to implement a data transmission system. Information is entered via a keypad, and transmitted via an infra-red light emitting diode (LED) to a receiver, where signals are then decoded and displayed. The aims of this experiment were to demonstrate the use of an Erasable Programmable Logic Device (EPLD) to implement digital circuitry and the use of logic analysers to observe digital circuitry.
Some modules of this experiment required the use of state machines. We will cover this in more detail as state machines are an integral…