fest ece 477 fall 2011 team 5 gloria budiman alexander kidarsa christopher sakalis vishal gala
TRANSCRIPT
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FEST
ECE 477 Fall 2011
TEAM 5
Gloria Budiman
Alexander Kidarsa
Christopher Sakalis
Vishal Gala
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FEST
Far
End
Speakerphone
Test
System
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INTRODUCTION
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DESIGN CONSTRAINT
Telephone line, ~300-3400 Hz
By Nyquist Rate, 8000Hz
16-bit data depth per channel
Requires to playback and record four different audio
files
MCU has only one storage media
Large, fast-access internal memory needed
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COMPUTATION REQUIREMENT
FFT
Normalized LMS
Auto-correlation
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INTERFACE REQUIREMENT
SD card
USB*
2 Push Buttons• Reset• Start/Stop
2 Switch
LCD/7-Segment-Display
LED
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ON-CHIP & OFF-CHIP
On-Chip• Serial Peripheral Interface
• SD Card• USB*
Off-Chip• DAC - To playback audio data from MCU• ADC - To record audio data to the MCU
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POWER, PACKAGING & COST
A.C. powered• Back up battery necessary for 24-hour operation
Packaging• Portable• But handheld form factor not desired
Unique device
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COMPONENT SELECTION
TMS320F-28035 MCU• Lower pin count, 128KB on-chip Flash• Other Options
• TMS320F-28335 (same family, 100+ pins, 256KB on-chip Flash)• C5000 low-power MCU (500+ pins)• C6000 single-core DSP (700+ pins, BGA only)
TLV320AIC23 Audio Codec• Modularity• Extendibility• Other Options
• PCM3008 (low-end, non-configurable)• TLV320AIC320, PCM3070 (non-hand-solderable)
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SUMMARY