Mp3 Casero
[pic]
Como hay mucha gente que no sabe deltema y algun dia le gustaria hacer algo asi, les dejo algunos links que les sirava como de mini tutorial para empezar a aprender
Aprenda electrónica básica. Varias lecciones[url]http://taringa.net/posts/downloads/967166/Curso-Interactivo-de-Electronica.html]Otro curso "interactivo"[/url]
Empezemos... Estas serian sus caracteristicas:
* 64, 128, 256, 512MB and 1, 2, 4 GB MMC and SDcards used as storage.
* FAT (FAT16) and FAT32 supported.
* Low power operation with a single AAA (HR03) 1V2 Ni-Mh battery.
* Runs on a 18LF452 or 18LF458 at 20 MhZ.
* Up to 256 kBps bitrate at44,1 kHz supported. VBR may peak at 320 kBps.
* ID3 v2.3 tags supported.
* Full user control (volume, track, pause, skip, directory) with a 5-way micro joystick.
* Real time display of bitrate,sampling rate, elapsed time, songnumber, ...
* LCD contrast adjustable by user.
* New: directory scrolling and file fragmentation support. Directory depth up to 10 accepted.
* New: Shuffle (randomplay) and extended character set enabled.
* High quality stereo DAC with a S/N ratio of typ. 87dB.
* THD of only 0.1% typ.
* On/Off pushbutton.
* Software is 100% upgradeable through an RS232bootloader connector.
* Voice Recording in PCM-format with same hardware is now possible! Look here for the source code.
Lo necesario:
PIC18LF45x PLCC: The 18LF452 or 18LF458 has to run at 20 MhZdue to the serial interface with the MMC. PLL cannot be used, cause it only works from 4V2. There's a quarter of ROM-space left for additional applications.
VS1002D: MP3 decoder chip. Enhancedperformance compared to the VS1001K. Sounds great! Future enhancements (equalizer and so on) are possible. Thanks to GBUF, no need for large capacitors at the earphone outputs. The chip also has a...
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