Created by: Angelo Jacobo
Date: March 5,2021

Inside the src folder are:

• sqwave_gen.v -> square wave generator that can be controlled by m and n (ON duration=m* 100ns OFF duration=n* 100ns)
• sqwave_gen_TB.v -> See "sqwave_gen_TB_RESULT.txt" for the result of this testbench

Note: This code is for simulation-purpose only and is not yet synthesized to any FPGA.

TASK:

4.7.1 Programmable square-wave generator

A programmable square-wave generator is a circuit that can generate a square wave with
variable on (i.e., logic 1) and off (i.e., logic 0) intervals. The durations of the intervals are
specified by two 4-bit control signals, m and n, which are interpreted as unsigned integers.
The on and off intervals are m* 100 ns and n* 100 ns, respectively (recall that the period of
the S3 onboard oscillator is 20 ns). Design a programmable square-wave generator circuit.
The circuit should be completely synchronous. We need a logic analyzer or oscilloscope
to verify its operation.