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Document Reference No.: FT_000550
Vinco Ethernet MP3 RTCShield Datasheet 1.0
Clearance No.: FTDI#256
4.2 MP3 Sample Application
An “MP3” sample application called “ MP3FlashDisk.vproj ” demonstrates how to play songs (MP3 and
WMA) from a FAT-formatted USB flash drive. The application automatically find MP3 and WMA files in the
root directory of the flash drive and plays them one after another. Currently the application only plays
back the first 25 songs found. This limit can be changed by adjusting the macro MAX SONG count in
MP3FlashDisk.c. Due to a limit in the SPI transfer speed, only songs at 96kbps or lower can be played
smoothly.
in 4.1.
Three push buttons can be attached to emulate an MP3 player – see example
Setup:This application uses the Ethernet/MP3/RTC Shield mated with the Vinco module, a flash drive
connected to the CN2 (USB port 2) connector on the Vinco module and a Host PC with the installed VNC2
IDE . The Ethernet/MP3/RTC Shield also has a CN2 connector to allow the user to connect headsphones
onto it. The Vinco module consists of a J7 connector which connects with the VNC2
debugger/programmer module , (also available from FTDI ), this allows the IDE running on the PC to
communicate with the VNC2 debugger port. The debugger module can also be used to load the rom file
created by the IDE into the VNC2 chip.
Three push buttons can be attached as follows to emulate the MP3 player:
Figure 4.1 – MP3 Player Push Buttons Schematic
9
Copyright ? 2011 Future Technology Devices International Limited
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