mikroElektronika Click User manual

click
BOARD
1. Introduction
MP3 Click is an accessory board in mikroBus™
form factor. It includes a stereo MP3 decoder
chip VS1053 whichcandecodemultipleformats
(Oggvorbis,MP3,MP1,MP2,MPEG4,WMA,FLAC,
WAW, MIDI), and encode three dierent formats
from microphone in mono or stereo format (Ogg
vorbis, IMA ADPCM, 16-bit PCM). Board uses
industry-standard Serial Peripheral Interface for
communication, and can only use 3.3V power
supply. Board features stereo headphone and
microphone audio connectors.
www.mikroe.com
MP3 click
Once you have soldered the headers your
board is ready to be placed into desired
mikroBUS™ socket. Make sure to align the
cut in the lower-right part of the board
with the markings on the silkscreen at
the mikroBUS™ socket. If all the pins are
aligned correctly, push the board all
the way into the socket.
3. Plugging the board in
2 3
2. Soldering the headers
1
4. How to play music?
Using MP3 click in combination with microSD
click board, you can play music les directly from
your microSD card. You can easily implement
microcontroller software which can read mp3
les chunk-by-chunk, and send each chunk for
decoding over the same SPI communication
lines, with dierent chip selects for each board.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
Turn the board upside down, so that
bottom side is facing you upwards. Place
shorter parts of the header pins in the
both soldering pad locations.
Before using your click board, make sure to
solder the provided 1x8 male headers to
both sides of the board. Please locate the
headers in the top side of the inner box of
the board package, and take them out.

5. MP3 click Board Schematics
R18
2K2
SCK
CS#
SDI
CN1
PHONEJACK
LEFT
RIGHT
C6
10nF
C4
47nF
C5
10nF
GBUF
C18
100nF
C17
100nF
C15
100nF
C13
100nF
C16
100nF
C10
100nF
C11
100nF
C12
100nF
C14
100nF
VCC-1.8
C19
2.2uF
VCC-3.3
E3
10uF
SDO
RST# DCS
DREQ
VCC-3.3
CN3
MICROPHONE
E2
10uF
E1
10uF
C3
100pF
C1 100pF
C2 100pF
VCC-3.3
MICN
MICP
2
3
4
5
6
7
11
12
13 14
25
24 23 22 21 18 17 16 15
8
1
19
9
10 27
26
20
28
29
30
31
32
33
34
35
36
37 38 39 40 41 42 43 44 45 46 47 48
MCP/LN1
MICN
XRESET
DGND0
CVDD0
IOVDD0
CVDD1
DREQ
GPIO2
GPIO3
GPIO6
GPIO7
XDCS/BSYNC IOVDD1 VC0 DGND1 XTAL0 XTAL1 IOVDD2 DGND2 DGND3 DGND4 XCS CVDD2
GPIO5
RX
TX
SCLK
SI
SO
CVDD3
XTEST
GPIO0
GPIO1
GND
GPIO4
AGND0
AVDD0 AVDD2
AGND1 AGND2 AGND3
LN2
LEFT
RCAP
AVDD1
GBUF
RIGHT
VS1053
U1
1
2
3
5
4
R20
120K
R19
22K
R21
12K1
R13
1K
R14
1K
R15
1K
R16
1K
R3
10
R11
20
R12
20
R1 10
R2 10
VCC-1.8
VCC-3.3
LEFT RIGHT GBUF LINE2
C9 1uF
R7
100K
GPIO GPIO
R5
10K
VCC-3.3
SDO
SDI
SCK
DCS
DREQ
RST#
MICN
MICP
CS#
X1
12.288MHz
R17 1M
C8
22pF
C7
22pF
R6
100k
R4
10K
VCC-3.3
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
PWR
IN
GND
OUT
EN ADJ
U2
AP7331-ADJ
8. Support
MikroElektronika oers Free Tech Support
(www.mikroe.com/esupport) until the end
of product lifetime, so if something goes
wrong, we are ready and willing to help!
7. Code Examples
.com
Once you have done all the necessary
preparations, it’s time to get your click board up
and running. We have provided the examples for
mikroC, mikroBasic and mikroPascal compilers
on our Libstock website. Just download them
and you are ready to start.
6. Power supply - 3.3V only
Board is designed to use
3.3V power supply only.
If you need to add MP3
feature to your 5V prototype
or development board, we
recommend you to use other boards such as
the SmartMP3 Accessory Board:
http://www.mikroe.com/eng/products/
view/165/smartmp3-board/