To include any of these functions/drivers in your project... 1/ Specify the path to the LCDLIB. 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 $(LCDLIB)/lcd.mk 3/ In your project Makefile add the makefiles for any specific drivers you want e.g include $(LCDLIB)/halext/drivers/touchpad/touchpadXPT2046/touchpad_lld.mk include $(LCDLIB)/halext/drivers/gdispNokia6610/gdisp_lld.mk 4/ In your project halconf.h turn on the support you want eg. /** * @brief Enables the Touchpad subsystem. */ #if !defined(HAL_USE_TOUCHPAD) || defined(__DOXYGEN__) #define HAL_USE_TOUCHPAD TRUE #endif /** * @brief Enables the GDISP subsystem. */ #if !defined(HAL_USE_GDISP) || defined(__DOXYGEN__) #define HAL_USE_GDISP TRUE /* Any driver specific defines required go here. The below line is an example. */ #define GDISP_NEED_MULTITHREAD TRUE #endif 5/ Do a make clean.