1. introduction mp3 click is an accessory board in mikrobus ? form factor. it includes a stereo mp3 decoder chip VS1053 which can decode multiple formats (ogg vorbis, mp3, mp1, mp2, mpeg4, wma, flac, waw, midi), and encode three diferent 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. 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 fles directly from your microsd card. you can easily implement microcontroller software which can read mp3 fles chunk-by-chunk, and send each chunk for decoding over the same spi communication lines, with diferent 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. mp3 click before using your click board, make sure to solder the provided 1x8 male headers to both sides of the board. two 1x8 male headers are included with the board in the package. click board www.mikroe.com mp3 click manual ver. 1.00 0 100000 020081
8. support mikroelektronika ofers 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, its 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/ 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 mikroelektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document. specifcation and information contained in the present schematic are subject to change at any time without notice. copyright ? 2012 mikroelektronika. all rights reserved.
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