Digital Piano

CECS 447 Project 1

The main file is project1P2.c

Purpose

• program ARM Cortex-M4 Launchpad
• build a DAC circuit
• play simple songs using a speaker

Requirements

• 16 MHz system clock
• output to a speaker via PA3
• SysTick timer interrupt priority 2
• Port F edge interrupt priority 5

Song List

1. Happy Birthday
2. Mary Had a Little Lamb
3. Twinkle Twinkle Little Star