STM32 不能像51一样BIT操作吗？

a312835782 · 发表于 2012-7-21 14:15:16

下面是STM32定义的可以像51一样bit操作吗？

typedef signed long s32;
typedef signed short s16;
typedef signed char s8;

typedef signed long const sc32; /* Read Only */
typedef signed short const sc16; /* Read Only */
typedef signed char const sc8; /* Read Only */

typedef volatile signed long vs32;
typedef volatile signed short vs16;
typedef volatile signed char vs8;

typedef volatile signed long const vsc32; /* Read Only */
typedef volatile signed short const vsc16; /* Read Only */
typedef volatile signed char const vsc8; /* Read Only */

typedef unsigned long u32;
typedef unsigned short u16;
typedef unsigned char u8;

typedef unsigned long const uc32; /* Read Only */
typedef unsigned short const uc16; /* Read Only */
typedef unsigned char const uc8; /* Read Only */

typedef volatile unsigned long vu32;
typedef volatile unsigned short vu16;
typedef volatile unsigned char vu8;

typedef volatile unsigned long const vuc32; /* Read Only */
typedef volatile unsigned short const vuc16; /* Read Only */
typedef volatile unsigned char const vuc8; /* Read Only */

zhengchao20105 · 发表于 2012-7-21 15:18:46

可以，参见下面原子例程中的sys.h文件
#ifndef __SYS_H
#define __SYS_H
#include <stm32f10x_lib.h>
//////////////////////////////////////////////////////////////////////////////////
//本程序只供学习使用，未经作者许可，不得用于其它任何用途
//Mini STM32开发板
//系统时钟初始化
//正点原子@ALIENTEK
//技术论坛:www.openedv.com
//修改日期:2010/5/27
//版本：V1.4
//版权所有，盗版必究。
//Copyright(C) 正点原子 2009-2019
//All rights reserved
//********************************************************************************
//V1.4修改说明
//把NVIC KO了,没有使用任何库文件!
//加入了JTAG_Set函数
//////////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////
//位带操作,实现51类似的GPIO控制功能
//具体实现思想,参考<<CM3权威指南>>第五章(87页~92页).
//IO口操作宏定义
#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
/////////////////////////////////////////////////////////////////
//Ex_NVIC_Config专用定义
#define GPIO_A 0
#define GPIO_B 1
#define GPIO_C 2
#define GPIO_D 3
#define GPIO_E 4
#define GPIO_F 5
#define GPIO_G 6
#define FTIR   1  //下降沿触发
#define RTIR   2  //上升沿触发
/////////////////////////////////////////////////////////////////
//JTAG模式设置定义
#define JTAG_SWD_DISABLE   0X02
#define SWD_ENABLE         0X01
#define JTAG_SWD_ENABLE    0X00

/////////////////////////////////////////////////////////////////
//void BKP_Write(u8 reg,u16 dat); //写入后备寄存器
void Stm32_Clock_Init(u8 PLL);  //时钟初始化
void Sys_Soft_Reset(void);      //系统软复位
void Sys_Standby(void);         //待机模式
void MY_NVIC_SetVectorTable(u32 NVIC_VectTab, u32 Offset);//设置偏移地址
void MY_NVIC_PriorityGroupConfig(u8 NVIC_Group);//设置NVIC分组
void MY_NVIC_Init(u8 NVIC_PreemptionPriority,u8 NVIC_SubPriority,u8 NVIC_Channel,u8 NVIC_Group);//设置中断
void Ex_NVIC_Config(u8 GPIOx,u8 BITx,u8 TRIM);//外部中断配置函数(只对GPIOA~G)
void JTAG_Set(u8 mode);
#endif