https://elinux.org/RPi_GPIO_Code_Samples#Direct_register_access RPi GPIO Code Samples - eLinux.orgThe Raspberry Pi GPIOs can be controlled using many programming languages. C Examples in different C-Languages. Direct register access Gert van Loo & Dom, have provided some tested code which accesses the GPIO pins through direct GPIO register manipulationelinux.org이 페이지에서 참고하여 Direct Access를 하는 법을 ..