YamppPod MP3 - Mictronics. This page is related to the yamppPod (yPod) MP3 player project of Jesper Hansen at www.yampp.com The hardware of this player is based around an Atmel ARM7, here AT90SAM7S128 and the VLSI VS1033 MPEG3 codec.
Powered by a single LiIo/LiPo battery, the player also includes a color LCD, a 5-way switch for user inputs and a TWI EEPROM to store settings. A Micro SD card slot provides access to the music and system files stored a simple Micro SD card. Recharging the battery as well as data exchange with a PC is done by the USB interface available via mini-USB connector. A 3.5mm stereo jack provides the audio signal for headphones or any kind of amplifier. And everything located on a tiny 4-layer PCB. Please DO NOT ask me for layout files PCB’s and so on!!!
Hardware specifications For easy firmware development Jesper provides a simple development board with USB interface. Check out both firmwares and play around to discovers all the differences, pro’s and contra’s. Hardware Pictures Related Link. MP3stick MP3 Player - Mictronics. The MP3stick is a simple and small portable MP3 player.
A microcontroller Atmel AVR ATmega128 is the heart of the circuit. MP3 decoding is done by an VLSI VS1011b decoder IC. A MMC/SD card works as memory medium for MP3 files, playlist files and skin files. The player is designed to draw his power from a LiIo/LiPo battery with 3.6V. a charger cicuit, based on MAX1811, is included. All information will be shown on a Nokia color LCD with 128×128 pixel and 256 colors. Project Pictures Hardware description How to use the Bootloader Only for empty controller: Programm the bootloader into the ATmega128 using a In-Circuit-Programmer (ISP)Compile the firmware as required, or use the precompiled firmware file.Copy the firmware binary file: MP3stick.bin to the root directory of your MMC/SD cardCycle power or call the bootloader from menuThe bootloader will search the root directory for the file MP3stick.bin.
Fuse Settings in AVR-Studio and PonyProg2000 How to M3U playlists How to create and use skins. Minty MP3. Mp3. Use at your own risk!
This edition, dec 20, 2001 to Feb. 20, 2003. By Raphael Abrams, not for commercial use under any circumstances! A Friendly Note on PIC Burning Please remember to clear the BROWNOUT fuse when burning the pic. Otherwise, nothing will work. The first thing to do is to format the CF card FAT32 and load the root directory with songs. First, the pic resets the CF card and the decoder chip. Once it has located a file, it clocks the card 512 times per sector sending all the information one byte at a time to the decoder chip.