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MikroElektronika
SmartMP3™
Manual
All Mikroelektronika’s development systems feature a large number of peripheral modules expanding microcontroller’s range of application and making the process of program testing easier. In addition to these modules, it is also possible to use numerous additional modules linked to the development system through the I/O port connectors. Some of these additional modules can operate as stand-alone devices without being connected to the microcontroller.
Addi
tiona
l Boa
rd
SmartMP3
MikroElektronika
SmartMP3SmartMP3 is an additional board used to reproduce audio files in mp3 format. In addition to the built-in speaker, SmartMP3 includes connectors that enable additional speakers or headphones to be connected to the board. There is also an MMC/SD card connector provided on the board. The SmartMP3 board uses the on-board audio decoder VS1011E to convert audio files in mp3 format into an audio signal to be reproduced through speakers.
Figure 1-1: SmartMP3 connected to the development system
SmartMP3 communicates with the microcontroller via SPI. The SmartMP3 additional board is connected to the development system via flat cables with 2x5 female connector. With regard to the fact that different development systems use different power supply voltages, it is necessary to adjust SmartMP3 voltage levels. It is performed through jumper J1 provided on the SmartMP3 board. In case that development system uses 3.3V power supply voltage, it is necessary to place jumper J1 in 3.3V position. Otherwise, jumper J1 should be left in its default position (5V).
When jumper J1 is placed in 5V position, the SmartMP3 board could be connected to development sysem with 5V power supply voltage such as: EasyPIC6, EasydsPIC6, EasyAVR6, EasyPSoC4, Easy8051 v6 etc.
When jumper J1 is placed in 3.3V position, the SmartMP3 board could be connected to development sysem with 3.3V power supply voltage such as: LV18F v6, EasyLV-18Fv6, LV24-22 v6, LV-32MX v6 etc.
Figure 1-2: J1 in 5V position Figure 1-3: J1 in 3.3V position
SmartMP3
MikroElektronika
In addition to jumper J1, the SmartMP3 board includes jumpers J2 and J3 used to turn on/off the built-in speaker as well as additional one connected to the board via the CN4 connector. The SmartMP3 board also enables you to connect another additional speaker via the CN5 connector. The built-in speaker is turned on by placing jumpers J2 and J3 in ENABLE position. When jumpers J2 and J3 are placed in DISABLE position, the built-in speker is turned off, thus enabling the additional speaker to be connected through the CN4 connector.
MMC/SD card connector
Figure 1-4: Built-in speaker is on
Figure 1-5: Built-in speaker is off
In addition to the above mentioned speakers, the SmartMP3 board enables you to connect headphones via CN2 and CN3 connectors.
A LED POWER is used to indicate the operation of the SmartMP3 board.
Jumpers J2 and J3 for turning on/off the built-in speaker Built-in speaker
Flat cable for connecting withdevelopment system
Jumper for selecting the power supply voltage of the development system
SmartMP3
MikroElektronika
R15
R14
100
100
R16100K
B0
A0
VCCB
OE
NC
VCCA
DIR
B1
A1
B2
A2
B3
A3
B5
A5
B6
B7
GND
A6
A7
GND
GND
B4
A4
U5
74LVCC3245
VCC-3.3
MISO
DREQMISO-3.3
DREQ-3.3
VCC
C26100nF
C25100nF
R18100K
R19100K
R20100K
R21100K
R31K
R21K
R11K
B0
A0
VCCB
OE
NC
VCCA
DIR
B1
A1
B2
A2
B3
A3
B5
A5
B6
B7
GND
A6
A7
GND
GND
B4
A4
U4
U1
74LVCC3245
VCC-3.3
MP3-CS#-3.3MMC-CS#-3.3
MP3-RST#-3.3SCK-3.3
BSYNC-3.3DCLK-3.3
MP3-CS#MMC-CS#
MOSI-3.3MOSI
SDATA-3.3SDATADCLK
BSYNC
SCKMP3-RST#
VCCC27
100nFC28
100nF
VCCVCC-REG VINVOUT
REG1
MC33269DT-3.31
32
E6 E10
10uF 10uF
C16
100nF
FERRITE
FP1VCC-3.3 AVCC-3.3
E5
10uF
C19
100nF
R6
R5MISO-3.3MOSI-3.3SCK-3.3MP3-CS#-3.3
BSYNC-3.3SDATA-3.3DCLK-3.3DREQ-3.3
MP3-RST#-3.3
1M
10KR9100K
R8100K
E210uF
E310uF
C11
C23
C21
C24
C22LEFT
HEA
DPO
HO
NES
RIGHT
100nF
100nF
100nF
100nF
100nF
FERRITE
FP2
VCC-3.3 VCC-MMC
E11
10uF
R231K
VCC-MMC
MMC-CD#
MMC-CD#
MMC-CS#-3.3
MISO-3.3
CN8MMC CARD
CSDinGND+3.3VSCKGNDDout CD
GC
OM
MOSI-3.3
SCK-3.3
VCC
C20
100nF
VCC-MMC
C2
100nF
VCC-3.3
C1
100nF
VCC-3.3
C3
100nF
VCC-3.3
C4
100nF
AVCC-3.3
C5
100nF
AVCC-3.3
DGNDXCSSCLKSISO
VS1011E
DVDDDGND
RESETAGNDLEFTAVDDRCAPAGNDRIGHTAVDDAGND
PIO1GPIO0GESTT
DVDD
DREQDCLKSDATABSYNCDVDDDGNDXTAL0XTAL1
VCC-3.3 VCC-3.3
AVCC-3.3
VCC-3.3
LEFT R4
R7
20K
75K
E1
100nF
100nF
C6
C7
10uF
C 01
100nF
VCC-3.3
VCC-3.3
U2
LM4846
SHUTDOWN
BYPASS
+IN
-IN
VO2
GND
VDD
VO1
SP OUT1+
SP OUT1+
SP OUT1-
SP OUT1-
RIGHT R10
R11
20K
75K
E4
100nF
100nF
C8
C9
10uF
C 21
100nF
VCC-3.3
VCC-3.3
U3
LM4846
SHUTDOWN
BYPASS
+IN
-IN
VO2
GND
VDD
VO1
OUT2+
OUT2-
X125MHz
C 71
22pF
C 81
22pF
CN2 J3
J2
SP1+
SP1-
OUT1+
OUT2+
OUT1-
OUT2-
CN4
SP1
CN5
CN3
MMC-CS#
DREQ
MP3-RST#
DCLK
MISOMMC-CD#
MP3-CS#
BSYNC
SCK
SDATA
MOSI
VCC
VCC
CN6
CN6 J1
VCC-BRDVCCVCC-REG
3.3V5V
VCCR7
1KLD1
POWER
{{
Figure 1-6: SmartMP3 additional board connection schematic
SmartMP3
MikroElektronika
SmartMP3
MikroElektronika
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