To include any of these functions/drivers in your project... 1/ Specify the path to the GFXLIB. If none defined, default is $(CHIBIOS)/ext/lcd 2/ In your project Makefile (amongst similiar lines but after the hal line) add the line... include $(GFXLIB)/gfx.mk 3/ Add $(GFXSRC) and $(GFXINC) to your SRCS and INCDIR of your projects Makefile 4/ In your project Makefile add the makefiles for any specific drivers you want e.g include $(GFXLIB)/drivers/touchpad/XPT2046/touchpad_lld.mk include $(GFXLIB)/drivers/gdisp/SSD1289/gdisp_lld.mk 5/ In your project halconf.h turn on the support you want. Please take a look to docs/configure.txt for a list and description of all available macros. For example: #define GFX_USE_GDISP TRUE #define GFX_USE_TOUCHPAD TRUE #define GDISP_USE_GPIO TRUE #define GDISP_GDISP_SCREEN_WIDTH 240 #define GDISP_GDISP_SCREEN_HEIGHT 320 #define GDISP_NEED_CONTROL TRUE #define TOUCHPAD_NEED_MULTITHREAD TRUE 6/ Do a make clean