Firmware and Hardware for an MP3 player using an AVR Butterfly, VS1001K decoder and SD/MMC card with FAT filesystem.
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changed regulator to lower power consumption. REG-710 -> LP2981
BUTTERFLYMP3 Change Log ======================= $Id: log.txt,v 1.26 2007/06/04 15:12:17 brokentoaster Exp $ + addition - removed code ~ changed code operation ! Bug discovered * Bug Fixed . Note VERSION 0.6 4 June ~Split lcdgraphics.c into 3 device dependant files: none, nokia and alpha -removed CHAR2BCD3 from BCD.c -removed Timer0_AllocateCountdownTimer from timer0.c -removed Timer0_GetCountdownTimer from timer0.c -removed Timer0_SetCountdownTimer from timer0.c -removed Timer0_ReleaseCountdownTimer from timer0.c .more doxygen comment tidyup .compiled no disp 11468 .compiled Nokia 14000 .compiled Alpha 13236 2 June .Added CVS ID tags to file comments 30 May -removed unused dump_Globals -removed unused FAT_readRoot .Compilation size is 13380 28 May *Fixed Playback by removing optomization in FAT_NextCluster .Compilaton size 14210 ( ~200 bytes saved by optimization) 25 May !playback broken after optimizing code 17 May *Fixed Cluster handling in non Root directories !Current source is too big to use a bootloader. 13 May -Removed FAT16_get label to save space 12 May *Directory trailing slash not showing *file type not being set properly ~Added better battery usage% based on real world data. 25 Apr *Prev song is fixed ~now skips directories when autoplaying next song. ~when paused|stopped up is parent directory .play on a directory will enter directory .song will not stop when browsing unless a song is found dirs are displayed but ignored. 24 Apr *no . ..dirs not a bug *hidden dirs are now hidden *.files are now hidden +added simple serial interface i,j,k,l and space +can now go up to parent directory *directory scanning bug (now much much faster) 22 Apr 2007 ~Fixed directory support slightly !prev song is broken !last song missing in sub dir !no . .. directories !hidden directories need to be hidden !no way up in directory !eliminate stop mode -> startup in pause mode.
- Fixed footprint in 6100 library. (sot23 had pins swapped) - Fixed layout of 6100 boards to reflect correct footprints. - Circuit for backlighting has been verified and works well being driven by a PWM signal from an AVR.
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