这段程序怎样换成库函数操作那

编程菜鸟 · 发表于 2016-7-12 16:46:22

#define GPIOB_ODR_Addr (GPIOA_BASE+12) //0x4001080C
//#define GPIOB_IDR_Addr (GPIOB_BASE+8) //0x40010C08
//#define GPIOC_IDR_Addr (GPIOC_BASE+8) //0x40011008
#define BITBAND(addr, bitnum) ((addr & 0xF0000000)+0x2000000+((addr &0xFFFFF)<<5)+(bitnum<<2))
#define MEM_ADDR(addr)  *((volatile unsigned long  *)(addr))
#define BIT_ADDR(addr, bitnum) MEM_ADDR(BITBAND(addr, bitnum))
//IO口地址映射
#define PBout(n) BIT_ADDR(GPIOB_ODR_Addr,n)  //输?
#define LCD_LED PBout(0) //LCD背光  PB0
LCD_LED=1;