readme.txt

老外个人做的MP3/优盘。使用ATMEL MEGA系列的MCU

Hi ALL !
This is instruction for making national language support for yampp-3/USB player
with Nokia graphics LCD, or national characters replacing for aplhanumeric LCD's.

From firmware ver. 1.20 yampp support maximum of 20 national characters 
definition. Any of it must have ascii code above 127. If you don't know this
codes, please send to yampp any MP3 file named with same national characters,
and do "Dump Data Section" in yL. You find this codes in songbase sector after
dump.

Next you must prepare file witch codes conversion tables, and characters
definitions. For do this i publish an example with Polish language set 
(file "Polish.ASM"). First you must setup chars sequence table to define all
avaliable characters in designed language (upper case and lower case characters).
Maximum count of all characters is 20. First char code is for first font,
second for second font ect. In next section you must define list of standard 
chars for replacing national fonts on alphanumeric LCD's.
Next you must define apperance for all font for graphics LCD. One font have 6 
bytes of data defined from left to right. LSB of any byte is at up of font.
Font sequence must be same as sequence in chars lookup table.

If you ready, you must compile this source by running "Compile.bat" with 
source file name (without extension !!!) eg. "Compile.bat Polish"

In yampp-3/usb disk, fonts are stored into 4 th sector of disk (YADL_SEC_SCRATCH).
For fonts loading method ask ULI :-))))


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