GD32F207 位带操作 GPIO

news2024/9/26 5:15:58

下面的程序用在GD32F207上测试成功，如果要在新的单片机上进行位带操作需要查看新的单片机的寄存器偏移量。

#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)) 
#define output_offset 0x0c
#define input_offset  0x08
//IO口地址映射
#define GPIOA_ODR_Addr    (GPIOA+output_offset) //0x4001080C 
#define GPIOB_ODR_Addr    (GPIOB+output_offset) //0x40010C0C 
#define GPIOC_ODR_Addr    (GPIOC+output_offset) //0x4001100C 
#define GPIOD_ODR_Addr    (GPIOD+output_offset) //0x4001140C 
#define GPIOE_ODR_Addr    (GPIOE+output_offset) //0x4001180C 
#define GPIOF_ODR_Addr    (GPIOF+output_offset) //0x40011A0C    
#define GPIOG_ODR_Addr    (GPIOG+output_offset) //0x40011E0C    

#define GPIOA_IDR_Addr    (GPIOA+input_offset) //0x40010808 
#define GPIOB_IDR_Addr    (GPIOB+input_offset) //0x40010C08 
#define GPIOC_IDR_Addr    (GPIOC+input_offset) //0x40011008 
#define GPIOD_IDR_Addr    (GPIOD+input_offset) //0x40011408 
#define GPIOE_IDR_Addr    (GPIOE+input_offset) //0x40011808 
#define GPIOF_IDR_Addr    (GPIOF+input_offset) //0x40011A08 
#define GPIOG_IDR_Addr    (GPIOG+input_offset) //0x40011E08 
 
//IO口操作,只对单一的IO口!
//确保n的值小于16!
#define PAout(n)   BIT_ADDR(GPIOA_ODR_Addr,n)  //输出 
#define PAin(n)    BIT_ADDR(GPIOA_IDR_Addr,n)  //输入 

#define PBout(n)   BIT_ADDR(GPIOB_ODR_Addr,n)  //输出 
#define PBin(n)    BIT_ADDR(GPIOB_IDR_Addr,n)  //输入 

#define PCout(n)   BIT_ADDR(GPIOC_ODR_Addr,n)  //输出 
#define PCin(n)    BIT_ADDR(GPIOC_IDR_Addr,n)  //输入 

#define PDout(n)   BIT_ADDR(GPIOD_ODR_Addr,n)  //输出 
#define PDin(n)    BIT_ADDR(GPIOD_IDR_Addr,n)  //输入 

#define PEout(n)   BIT_ADDR(GPIOE_ODR_Addr,n)  //输出 
#define PEin(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

GD32F207这里区分STM32L151的重要地方是

STM32L151是

#define output_offset 0x14
#define input_offset 0x10

GD32是

#define output_offset 0x0c
#define input_offset 0x08

下面是GD32F207的数据手册中的截图