1. ECE 477 Digital Systems Senior Design Project  Spring 2007
9xm is a portable music player that streams audio over a wireless network.
It runs embedded Linux on a Cirrus microcontroller.
Control 9xm using 9tunes running on a PC.
9xm has built-in speakers, rechargeable batteries, and a touch-panel keyboard.
A separate daughterboard contains the battery charger, audio amplifiers, accelerometer, and touch-panel controller.
Tap it on its side to pause and play.
A top-down illustration of 9xm’s insides.
(Layers from top to bottom:
red, blue, green, yellow.)
Digijock(ette)-Strength Digital System DesignTM