关于stm32f401的跑马灯

1楼-- · 2019-07-21 09:53

只有以下这些地址映射好了就可以用了。stm32f103的寄存器地址与STM32F401的寄存器地址不一样。你对比芯片手册改一下就好了！

#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 GPIOA_ODR_Addr    (GPIOA_BASE+12) //0x4001080C
#define GPIOB_ODR_Addr    (GPIOB_BASE+12) //0x40010C0C
#define GPIOC_ODR_Addr    (GPIOC_BASE+12) //0x4001100C
#define GPIOD_ODR_Addr    (GPIOD_BASE+12) //0x4001140C
#define GPIOE_ODR_Addr    (GPIOE_BASE+12) //0x4001180C
#define GPIOF_ODR_Addr    (GPIOF_BASE+12) //0x40011A0C
#define GPIOG_ODR_Addr    (GPIOG_BASE+12) //0x40011E0C

#define GPIOA_IDR_Addr    (GPIOA_BASE+8) //0x40010808
#define GPIOB_IDR_Addr    (GPIOB_BASE+8) //0x40010C08
#define GPIOC_IDR_Addr    (GPIOC_BASE+8) //0x40011008
#define GPIOD_IDR_Addr    (GPIOD_BASE+8) //0x40011408
#define GPIOE_IDR_Addr    (GPIOE_BASE+8) //0x40011808
#define GPIOF_IDR_Addr    (GPIOF_BASE+8) //0x40011A08
#define GPIOG_IDR_Addr    (GPIOG_BASE+8) //0x40011E08

//IO口操作,只对单一的IO口!
//确保n的值小于16!
#define

Aout(n) BIT_ADDR(GPIOA_ODR_Addr,n) //输出
#define

Ain(n) BIT_ADDR(GPIOA_IDR_Addr,n) //输入

#define

Bout(n) BIT_ADDR(GPIOB_ODR_Addr,n) //输出
#define

Bin(n) BIT_ADDR(GPIOB_IDR_Addr,n) //输入

#define

Cout(n) BIT_ADDR(GPIOC_ODR_Addr,n) //输出
#define

Cin(n) BIT_ADDR(GPIOC_IDR_Addr,n) //输入

#define

Dout(n) BIT_ADDR(GPIOD_ODR_Addr,n) //输出
#define

Din(n) BIT_ADDR(GPIOD_IDR_Addr,n) //输入

#define

Eout(n) BIT_ADDR(GPIOE_ODR_Addr,n) //输出
#define

Ein(n)    BIT_ADDR(GPIOE_IDR_Addr,n)  //输入

#define PFout(n)   BIT_ADDR(GPIOF_ODR_Addr,n)  //输出
#define PFin(n)    BIT_ADDR(GPIOF_IDR_Addr,n)  //输入

#define PGout(n)   BIT_ADDR(GPIOG_ODR_Addr,n)  //输出
#define PGin(n)    BIT_ADDR(GPIOG_IDR_Addr,n)  //输入