Develop and submit an original logic circuit for the user interface of a 5-button MP3 player.

This assignment requires a knowledge of logic gates, flip-flops, counters, controlled gates and input / output. This task also require a knowledge of registers and shift-registers. Develop and submit an original logic circuit for the user interface of a 5-button MP3 player. The interface must display the volume as an 8-LED bar graph, the track number and Play/Pause indicators (one LED for each). The file must be in cdl format using CEDAR app/software.