Team 6

Guitar Audio Amplifier Audio Codec DSP Wireless Adapter Motor Array PC LCD Display LED Arrays Pushbutton or RPG Input Device

 6 PWM controllers  Interface to codec (or 2 I 2 C channels)  SPI for the LCD controller  4 inputs for pushbuttons or RPG for interface  6 outputs for tuning LEDs  1 A/D for battery voltage monitor  1 I 2 C channel for wireless transceiver

 Storage of audio sample from codec  Accuracy of the string frequency are directly related to the length of the sample  Initial results suggest that 3,000 16bit samples at 2,100 Hz will be accurate to about +- 5 cents.  This means at least 6kb of memory just for the sample storage and FFT

ADSP SHARC® PROCESSOR DSPIC33FJ256GP506

ADSP SHARC® PROCESSOR DSPIC33FJ256GP506  200MHz at 1.2GFLOPS  32 bit  2Mbit SRAM  4Mbit ROM  6 serial/I 2 C ports  1 SPI  Digital Applications Interface (for interface with codec)  3 PWM channels  84 I/O pins  15 sixteen bit A/D  $18.01 a unit  40 MIPS  16 bit  16k SRAM  256K Flash  2 UART  2 I 2 C  2 SPI  Data Converter Interface ( for interface with codec)  8 PWM channels  2 twelve bit A/D modules  $4.20 a unit

 We chose the dsPIC33FJ256GP506.  Powerful enough to perform required calculations  Enough PWM channels for motors  Requires minimal external hardware  Team has experience with PIC architecture and development environment