hello,
I am working on a 128x64 GLCD Digitron SG12864-J5
it seems this type use a ST7920 Display processor (not KS107 or KS108)..
i fund and adapted some code and can display Texte with big characters 16x16
4 lignes of 16 cars
But i can't handle individual Pixel drawing ?
i use a 1024 bits RAM area for Graphics data.
And i have some doubt for constrat adjustment
with a micro potentiometer on the back PCB with is not very efficient..
Constrast is also very sensitive with Power voltage:
4.8V nothing visibe 5.01V OK 5.2V Nothing
Can someone show me a C code for put_pixel(x,y,color); drawing function.
color is only like Black or white ..
(I allready did it for a Nokia 5110 successfully)
but this LCD is very special..
you can see my results and C18 code on this web page
http://paulfjujo.free.fr/_18FxxKxx/Test_LCD_128x64_ST7920_8b_PIC18F46k22.htm
I am working on a 128x64 GLCD Digitron SG12864-J5
it seems this type use a ST7920 Display processor (not KS107 or KS108)..
i fund and adapted some code and can display Texte with big characters 16x16
4 lignes of 16 cars
But i can't handle individual Pixel drawing ?
i use a 1024 bits RAM area for Graphics data.
And i have some doubt for constrat adjustment
with a micro potentiometer on the back PCB with is not very efficient..
Constrast is also very sensitive with Power voltage:
4.8V nothing visibe 5.01V OK 5.2V Nothing
Can someone show me a C code for put_pixel(x,y,color); drawing function.
color is only like Black or white ..
(I allready did it for a Nokia 5110 successfully)
but this LCD is very special..
you can see my results and C18 code on this web page
http://paulfjujo.free.fr/_18FxxKxx/Test_LCD_128x64_ST7920_8b_PIC18F46k22.htm