I am working 128X64 Graphical lcd and using lib given on http://en.radzio.dxp.pl/ks0108/ and successfully interface it with ATMEGA32. I want to change the font of characters form 5X8 to 12X16 . So I make change in function given below in KS108.c
void GLCD_WriteChar1(char charToWrite)
charToWrite -= 32;
for(i = 0; i < 5; i++)
GLCD_WriteData(GLCD_ReadByteFromROMMemory((char *)((int)font12x16 + (5 * charToWrite) + i)));
but this not work. So please help to solve what is wrong.