+ /* button test! */
+ if(button_get_event(&button)) {
+ uart0_send_string(announce);
+ switch(button.key[0]) {
+ case BUTTON_POWER:
+ display_load_logo(0);
+ break;
+ case BUTTON_DOWN:
+ if(contrast>0x00)
+ contrast-=1;
+ DISPLAY_SET_CONTRAST(contrast);
+ break;
+ case BUTTON_UP:
+ if(contrast<0x3f)
+ contrast+=1;
+ DISPLAY_SET_CONTRAST(contrast);
+ break;
+ default:
+ display_clear_screen();
+ break;
+ }
+ }
+ }