{"id":1678,"date":"2014-10-29T09:10:19","date_gmt":"2014-10-29T09:10:19","guid":{"rendered":"http:\/\/bitmap2lcd.com\/blog\/?p=1678"},"modified":"2014-10-29T09:10:19","modified_gmt":"2014-10-29T09:10:19","slug":"code-example-displaying-a-bitmap-on-graphic-lcd","status":"publish","type":"post","link":"https:\/\/bitmap2lcd.com\/blog\/code-example-displaying-a-bitmap-on-graphic-lcd\/","title":{"rendered":"Code example : Displaying a bitmap on Graphic LCD"},"content":{"rendered":"

Bitmap2LCD is a tool for programming small Graphic LCDs in embedded systems and a programmable graphic and text processing tool.<\/em><\/strong><\/span><\/h3>\n

Code example : Displaying a bitmap on a Graphic LCD<\/h3>\n

Example for an Atmel AVR Microcontroller + a monochrome 128 x 64 Dot Matrix GLCD + using a KS0108 GLCD Controller Library.<\/span><\/em><\/p>\n

 <\/p>\n

#include <avr\/io.h><\/span>
\n #include “C:\\Users\\BE\\GLCD Lib\\KS0108.c”<\/span>
\n #include “C:\\Users\\BE\\GLCD Lib\\KS0108-AVR.c”<\/span>
\n #include “C:\\Users\\BE\\Documents\\Bitmap2LCD Project\\Output Files\\NewBitmap.h”<\/span><\/h6>\n
void LoadBitmap(const uint8_t *bitmap)<\/span>
\n {<\/span>
\n uint8_t i, j;<\/span><\/h6>\n
for(i=0; i<64; i+=8)<\/span><\/h6>\n
for(j=0; j<128; j++)<\/span>
\n {<\/span>
\n GLCD_GoTo(j, i);<\/span>
\n GLCD_WriteData(pgm_read_byte(bitmap++));<\/span><\/h6>\n
}<\/span>
\n }<\/span><\/h6>\n
int main(void)<\/span>
\n {<\/span>
\n while(1)<\/span>
\n {<\/span>
\n LoadBitmap(NewBitmap);<\/span>
\n }<\/span>
\n }<\/span><\/h6>\n

 <\/p>\n

Newbitmap.h
\n<\/strong><\/p>\n

The 128 x 64 pixels bitmap converted to data array<\/em><\/p>\n

#include <avr\/pgmspace.h> <\/span>
\n\u00a0 <\/span>
\n\u00a0const uint8_t\u00a0 NewBitmap [] = { <\/span>
\n\u00a0 <\/span>
\n\u00a00x20 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x02,<\/span>
\n\u00a00x10 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x04,<\/span><\/h6>\n
…\u00a0 Bitmap 1024 Data bytes in Total
\n<\/span><\/h6>\n
0x80 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00,<\/span>
\n\u00a00x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00 , 0x00<\/span>
\n};<\/span><\/h6>\n

 <\/p>\n\t

\r\n\t