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Document Reference No.: FT_000550
Vinco Ethernet MP3 RTCShield Datasheet 1.0
Clearance No.: FTDI#256
SW1 is used to play/pause and skip songs:
Short press (> 0.1s and < 0.8s): play/pause
Long press (>0.8s): skip to the next song
SW2 is used to control volume:
Short press (> 0.1s and < 0.8s): decrease volume
Long press (>0.8s): increase volume
SW3 is used to control volume:
Short press (> 0.1s and < 0.8s): fast forward
Long press (>0.8s): rewind
Since a long button press takes about 0.8s to be recognized, the program will delay for about 0.8s since
a button is pressed to verify if it is a short press or a long press. Hence there will be a delay of about 0.8s
since the button is press before the operation is performed. As a result, even for short presses, two
consecutive presses should still be about 1s apart from each other (i.e. do not press too fast). The use of
an external power supply (provided with the purchase of Vinco) is recommended.
4.3 RTC Sample Application
The “ RTC ” sample application called “ RTCExample.vproj ” demonstrarates the use of the NXP PCF2123
Real Time Clock to set/read the time and start a countdown timer.
Setup:This application uses the Ethernet/MP3/RTC Shield mated with the Vinco module and a Host PC
with the installed VNC2 IDE . 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. It also used to load the rom file created by the IDE into the
VNC2 chip.
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Copyright ? 2011 Future Technology Devices International Limited
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