readme.txt

老外个人做的MP3/优盘。使用ATMEL MEGA系列的MCU

Hi All !

This is firmware for use with yampp-3/USB, and suports USB transfer.
More info is avaliable on  www.yampp.com  and/or  www.yamppsoft.prv.pl

						MIS <[e-mail]>
History:
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v1.30 - 2003-09-05
-removed beta status of this firmware. No other changes.
!!! Sources designed for compilation with AVR-GCC 3.3 
    (version: WinAVR-20030312-bin-install.exe)
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v1.30b2 - 2003-08-10
-New autorepeat function not work on REC80 remotes. Revert to old and working.
*Fixed small displaying bug on 128x64 graphics LCD.
*Fixed volume bar on nokia LCD's.
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v1.30b1 - 2003-07-10
!!! Sources changed for compilation with AVR-GCC 3.3 !!!
+ Added full support for Yampp Sattelite Display.
+ added support for Rottary Switch control (direct or via Sattelite).
  For direct Rotary Switch connection see HW_CHANGES.TXT file.
+ added support for Graphics 128x64 display (direct or via Sattelite).
  For direct 128x64 display connection see HW_CHANGES.TXT file.
+ improved IR remote codes learning (added old memorized code displaying).
+ better IR remote autorepeat function.
* fixed progressbar bug during fast forward and rewind after volume change.
* fixed uart info formating.
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v1.27 - 2003-06-15
+ Added storing current position inside song after PAUSE and power-off
+ Added direct Playlist and Song number select in "Playlist" menu (from remote
  numerical keys). For use this select "Playlist" function from remote E.g. 
  press:  "Playlist" -> playlist numkber -> "Play" -> song number -> "Play"
+ Added volume ramp-up after startup the player with the autoplay.
  If you press "VolumeUp" key during the volume ramp-up - volume level is 
  increased to memorized value. If you press "Volume Down" key during the
  volume ramp-up - volume level stops at current level. If you don't touch any
  keys - volume level slowly rises to memorized value. This helps if you not
  have other volume controls, and set to high volume before power off the player.
+ Added new optional "PREVOUS" key functionality (like in normal CD players).
+ Added volume level dB displaying on 16 chars line length LCD's.
+ Added definition for CPU clock frequency change (CPU crystal frequency).
  Use at own risk.
- Turned off unused direct USB playing feature for codespace saving. 
  If you need this function, enable it via definition in Constants.h file.
* Fixed compatibility with some extended RC-5 remotes.
* Little ata procedures speed-up. If your disk don't work, goto yampp3lib,
  uncomment the ";#define SLOW_DISK" definition in "ata.asm" file, recompile
  library then recompile main firmware.
* Fixed volume bug during fast forward and rewind.
(+) some first attempt to Remote Yampp Sattelite Display support. 
    Not finished yet.

Changes inside library. This version need relearn remote codes for numerical
keys usable. All new functions is configurable in Constants.h file.

HINT: 
If you need learn only numerical keys from your remote, go to remote
setup procedure, press any key on remote for standard recognization, next
press several time the "Play" key on local keyboard (without sending any 
code from remote), and learn only needed numerical keys. If you not send
any code from remote, and press "Play" key, the old code is not changed.
By the same method, you can simply change only one or two remote key code
without relearn all others.
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v1.26 - 2003-04-10
+ added Balance control
+ added quick equalizer ON/OFF function
+ added Info about current song in EV_INFO event
+ added auto accept selected song - during song browse, if current song ends.
+ added some options in Constants.h file.
* fixed progressbar flicker during fast rewind (alphanumeric LCD)
* if 8 keys control is used -> removed not needed functions from Menu
* fixed bug in setup remote procedures
* code optimalisation

Changes inside library. This version need relearn remote codes.
Now ATmega is near to FULL - i make some options in Constants.h file to 
turn off some functions (UART, INFO, Autodetect remote standard)
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v1.25 - 2003-02-23
+ added support for new version of VS1001 equalizer library with 12 presets
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v1.24 - 2002-12-22
+ added support for older than K versions of VS1001.
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v1.23 - 2002-12-18
+ added storing time mode into EEPROM.
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v1.22 - 2002-11-14
+ added national characters conversion in standard alphanumeric LCD's.
No changes inside graph LCD character generator.
Changes in library and files in "Lang" folder.
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v1.21 - 2002-11-10
+ added bitrate displaying on graphisc LCD.
+ posibility to use bigger logo (84x40 pixels)
+ two versions of progresspar on graphisc LCD.
+ invert mode (negative image) on graphisc LCD.
* some minor bugfixes.
No changes inside libraries and character generator.
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v1.20 - 2002-11-09
+ added support for vs1001 equalizer running and settings.
  This function need loading some data to yampp disk, and we must wait for
  ULI support.
+ added suport for graphics LCD display from Nokia GSM phones.
+ national characters support on graphics LCD.
  More informations about connecting this display is inside 
  "y3u_Graph_LCD" folder.
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v1.16 - 2002-10-26
* bugfix in volume indicator clearing
+ added checking for AUTOREPEAT definition (i forgot about this in older f/w)
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v1.15 - 2002-10-21
+ added total song time displaying
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v1.14 - 2002-10-20
* bugfix in playlist name displaying on 4 lines LCD
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v1.13 - 2002-10-10 (not public)
+ added numeric volume level (in dB) on LCD longer than 16 chars.
+ added prevous playlist if mode=1 and you press PREVOUS key
* visualisation changes in MENU function
* fixed sound breaking after exit from PAUSE state.
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v1.12 - 2002-09-28
+ next visualisation improvements. Added second method of display scrolling.
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v1.11 - 2002-09-27 
+ improved visualisation on 4 lines LCD's. Changed playlist name displaying,
  added artistname and titlename scrolling if longer than LCD size.
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v1.10 - 2002-09-25 (non public)
* solved problems with some IR remotes standard detection
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v1.00 - 2002-09-01 
Initial public version

						MIS <[e-mail]>