Ubiquitous — MP 3 Player Ian Bratt Eric

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Ubiquitous - MP 3 Player Ian Bratt Eric Lee David Lindstone John Pratt Wei-Shin Wang ECEN 4573 Capstone Lab Spring 2003 Globex Proprietary Competition Sensitive

Project Objectives Standard MP 3 player capabilities MP 3 Recording Internal/External Audio Source Rechargeable Power Variable FM Transmission USB Interface World Domination* Globex Proprietary Competition Sensitive

U-MP 3 subsystems Input systems Output systems Power sources Memory and File Storage MP 3 Decoding/Encoding Processor and Control Globex Proprietary Competition Sensitive

Inputs USB n n n Compatible with all machines with USB ports Faster than Serial I/O User friendly Line-in n n Record external sources into MP 3 format Direct routing to MP 3 player output User Interface n Keypad Globex Proprietary Competition Sensitive

Outputs Headphones/Speakers FM transmission n n Great for using in car Tunable to various FM frequency External Audio Source n Able to transmit other audio sources LCD output n n n ID 3 tag info FM frequency display Animations Globex Proprietary Competition Sensitive

Power source Adaptor for car cigarette lighter Rechargeable Li. I battery n Rechargeable from wall adaptor or car cigarette lighter Globex Proprietary Competition Sensitive

Memory and File Storage Flash/EEPROM n Firmware Compact Flash n n n 256 MB Proprietary File System Removable/Interchangeable Globex Proprietary Competition Sensitive

MP 3 Decoder/Encoder Simple parallel interface Decoder n n n Supports 19. 2 KHz – 128 KHz Converts MP 3 data to analog output Digital, internal volume control Encoder n Variable sample rate Globex Proprietary Competition Sensitive

Processor and Control Microprocessor n Motorola MC 68332 FPGA n n Xilinx Bus arbitration FIFOs for MP 3 Decoder/Encoder Glue Logic Globex Proprietary Competition Sensitive

Top Level Design Globex Proprietary Competition Sensitive

Globex Proprietary Competition Sensitive

Schedule Globex Proprietary Competition Sensitive

Resource Distribution Ian n Processor and Control Eric n Memory and File Storage Dave n FM Transmission and Analog Aspects John n MP 3 Decoding/Encoding and File System Wei-shin n FPGA and Bus Control/Interfacing Everyone n Software and debugging Globex Proprietary Competition Sensitive

Project Checkpoints Critical Design Review n Prototype board running code n Schematics for PCB layout Milestone 1 n PCB populated and processor running Milestone 2 n Playing an MP 3 from the internal flash Expo n Transmit from the MP 3 player Globex Proprietary Competition Sensitive

Baseline Cost Analysis Parts: Processor: ~$20 n FPGA: ~$50 n SRAM: ~$15 n FLASH: ~$15 n LCD and KEYPAD: ~$15 n MP 3 DECODER: ~$20 TOTAL: ~$135 n Globex Proprietary Competition Sensitive

Production Cost Analysis Construction: 4 -Layer Board: ~$200 n Populate Board: ~$60 n Production Labor Costs: NONE! TOTAL: ~$260 n Final Total: $395 Globex Proprietary Competition Sensitive

Market Analysis Large scale production cost per unit n $75 Expected selling price of unit n $150 Projected market share n 15 -20% PROFIT n n $75 x 1 million units = $75, 000/year Tech support = $1, 000 of revenue and virtually no cost Globex Proprietary Competition Sensitive

Societal Implications No significant environmental impact Increases standard MP 3 player functionality n Eliminates the need to buy multiple electronic devices Less battery disposal Possible illegal FM broadcast Globex Proprietary Competition Sensitive

Risk Assessment USB n n n Interfacing with OS Noise Serial I/O FM transmission n FCC broadcast regulations Battery Controller n Complex control issues Globex Proprietary Competition Sensitive

Risk Assessment MP 3 decoder/encoder n n Significant documentation Interface difficulties General risks n n n Implementing design on 1 board Synchronization constraints Low-quality audio output Globex Proprietary Competition Sensitive

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