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Getting Started
1.3
1.3.1
1.3.1.1
1.3.1.2
1.3.2
1.3.2.1
1.3.2.2
1-4
Quick Start
AT89RFD-08
Hardware Settings
Power Supply
USB Attach
Configuration
Demonstration
MP3 Songs Upload
in MMC/SD Card
MP3 Music Play
The AT89RFD-08 Board is shipped with a pre-programmed AT89C51SND2C microcon-
troller. This default application is a basic demonstration program: a stand alone
MMC/SD Player.
An external DC power supply is required. The input circuit is a full bridge rectifier, and
the AT89RFD-08 Board automatically handles both positive or negative center of the
male JACK outlet. The red POWER LED is lit when power is on.
? external 5V to 9V DC: J14 opened
? external 3V : J14 closed
J13 jumper is used to force USB manual attach (pull-up on D+ signal). This jumper has
to be left open to run the demonstration program.
J13 shall be closed for firmware upgrade (ISP) purposes (the bootloader does not man-
age the USB attach).
? After Power ON and Initialization, the demonstration starts the MMC / SD player.
? Insert the MMC / SD card in the SD / MMC card connector (J3).
? Press the Select key to select the SD / MMC card in AT8xC51SND2.
– 1. The demonstration software has selected the card memory slot.
– 2. File system FAT12-16 is mounted.
– 3. Demonstration is now able to perform USB mass storage if USB cable is
plugged.
? Plug the USB cable: the MMC/SD card can be now seen as a logical removable drive
in PC File Explorer.
? Select this new logical drive on PC and format it in FAT12 or FAT16 if the card is not
FAT12 or FAT16.
? Load MP3 songs in a MMC / SD card.
? When the transfer is done, perform a safe USB detach from PC then unplug the USB
cable.
? Insert the MMC / SD card in the SD / MMC card connector (J3).
? Press the Select key to select the SD / MMC card in AT8xC51SND2.
– 1. The demonstration software has selected the card memory slot.
– 2. File system FAT12-16 is mounted.
– 3. Demonstration is now able to play MP3 files from MMC/SD card.
? Press the OK key to start playing the first MP3 file.
? Press the OK key to play the next MP3 song.
AT89RFD-08 Getting Started User Guide
4384C–MP3–04/07
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