MikroMMB for Xmega MP3 Player

This project is created in AVR GCC with 100% my own drivers and libraries , this player can play MP3, WMA and OGG files from micro SD/SDHC memory card fat16/32 formatted.

V1.3

On this firmware I made some bug fixes and I adding some functions to player:

Bug fixes:

1. The previous versions has a bug that forces user to put on first location of root directory the volume ID or a file or folder with the short name only.

Function's added:

1. A progress bar to track the melody, with the same progress bar the user can force the audio player to play file from a specified point.
2. Player can run now like a thread "Open player" "Close Player" when card is inserted is automatically opened the player, when SD card is removed all resources used by Audio Player will be freed.
3. Now you can play music from SD/SDHC card's formatted in FAT16 or FAT32(The FAT16 has a little bug, on root directory is displayed only files and directory's from first Page(512Bytes).

On this version you can play: MP3, AAC, OGG, WAV and WMA.

Download V1.3 demo version of this player.

V1.2

 On this version I made some changes:

1. I change the navigation from the "next" "previous" button to a list box.
2. On this version is not capable to display bitmap's because I want to design another interface to view bitmap photo.
3. The VS chip data is send by a service that work inside the RTC interrupt service, in this case has a high priority to send data to VS chip.

Download V1.2 demo version of this player.

V1.1

On this version I made huge improvements.

1. Now you can navigate through the directories when you listen music, you can choose another melody when you listen another melody.
2. The player has change the listen melody with the next from the current directory, the payback is stopped after the last melody is played.
3. Now you can see bitmaps images in 8, 24 and 32 bit/pixel with some limitations, maximum size 240x200pixels, the maximum file size 140KB (140000bytes), the 240x200 pixels limitation is implemented to no interference with the player interface, the 140KB limitation is made because I have a bug in the bitmap library, that can't read files bigger than this value.

This version is limited to play only MP3 files, the core clock is 32Mhz.

Download V1.1 demo version of this player.

V1.0

The controller is running at 16Mhz.

On this version can't manage the power consumption.

This version can play MP3, WMA and OGG.

Download V1.0

DiY: MP3 player with ATmega64 VS1011a and Samsung E700 color Display

This is my new mp3 player.

For this MP3 player is new: the display and a new graphical interface explorer.

Knowing that the display of the Nokia 6100 is an old and extremely poor quality, I thought to exchange it with one TFT display ( higher quality ) , by doing this I thought I make an new interface, and this is the result:

-File type played (VS1011): Decodes MPEG 1.0 & 2.0 audio layer III
(CBR, VBR, ABR); layers I & II optional;
WAV (PCM + IMA ADPCM)
-File type played (VS1033): Decodes MPEG 1 & 2 audio layer III (CBR
+VBR +ABR); layers I & II optional;
MPEG4 / 2 AAC-LC-2.0.0.0 (+PNS);
WMA4.0/4.1/7/8/9 all profiles (5-384 kbps);
WAV (PCM + IMA ADPCM);
General MIDI / SP-MIDI format 0 files
-File type played (VS1053): Decodes Ogg Vorbis;
MPEG 1 & 2 audio layer III (CBR +VBR
+ABR); layers I & II optional;
MPEG4 / 2 AAC-LC(+PNS),
HE-AAC v2 (Level 3) (SBR + PS);
WMA4.0/4.1/7/8/9 all profiles (5-384 kbps);
WAV (PCM + IMA ADPCM);
General MIDI 1 / SP-MIDI format 0 files

For bitrate higher than 320Kb/s is necessary to increase the CPU frequency from fuses for 4Mhz to fuses for 8Mhz internal RC

This project is under develop.
Last update 14-06-2009
Download source code
Download the board .max and gerber files
Download orcad schematick
Download PDF schematick




Mp3 Player with Winamp skin

Mp3 Player with Synthetic skin

Mp3 Player with Media Player skin Download demo hex fileThe fuse bit be set for 4Mhz Internal RC Oscillator

Mp3 Player with Half Life skin

This player run 2 threads , one for navigating and one for serving data to VS1011.

The last rectify of compatibility of Fat32 filesystem library and Player data service library has increase the transfer rate , in this moment the player is capable to read 256Kbit/s melody at 4Mhz internal RC clock with osccal=199(default), and 320Kbit/s at 4Mhz and osccal=255 (approximately 5Mhz) internal RC clock.

Now i work to one explorer configured from skin file like XML file.

This navigator display the short filename if the long file name is not writed on the name of file.

For support post a comment






This project was abandoned for another more powerful.

DiY: most tiny MP3 player with ATmega8 VS1011a and Nokia6100 Display

This is a complete mobile MP3 player and first mp3-player with ATmega8 and Nokia 6100 color display.

An demo firmware and gerber file for board will be available soon.

This player has capability to play wav and mp3 files and view BMP files on 8 or 24 bits/pixel from a MicroSD card with maximum capacity 2GB, the format of the SD is FAT32 with clusters from 512 Bytes to 32768Bytes, the filesystem has no limits in number of directories and files.
For future i want to adapting the SD driver for SDHC because the filesystem is designed to use all capacity of fat32 ( 2TB in 512Bytes/sector)

List of features:
Play Wav and MP3 Files because the VS1011a only this files is capable to decode( but for future in this project i want to include the VS1053 chip to play more file formats.
View Bitmap files on 8Bit and 24 bit/pixel

This project is in asm language and my 100% own libraries









For the moment the project has 5172Bytes of Flash , 663Bytes of Ram and 0Bytes of EEprom

I work to another MP3 player:
New MP3 Player Link