stem32的简单应用

    科技2024-11-06  11

    文章目录

    一: stem32的简单程序编译1·新建文件夹2. 选择stem32芯片3·对run-time environment进行设置4·编写程序5.保存6.调试7.点击start debug 开始操作8,再次点击start debug结束 二:总结

    一: stem32的简单程序编译

    1·新建文件夹

    2. 选择stem32芯片

    3·对run-time environment进行设置

    4·编写程序

    //宏定义,用于存放stm32寄存器映射 #define PERIPH_BASE ((unsigned int)0x40000000)//AHB #define APB2PERIPH_BASE (PERIPH_BASE + 0x10000) #define GPIOA_BASE (APB2PERIPH_BASE + 0x0800) //GPIOA_BASE=0x40000000+0x10000+0x0800=0x40010800,该地址为GPIOA的基地址 #define GPIOB_BASE (APB2PERIPH_BASE + 0x0C00) //GPIOB_BASE=0x40000000+0x10000+0x0C00=0x40010C00,该地址为GPIOB的基地址 #define GPIOC_BASE (APB2PERIPH_BASE + 0x1000) //GPIOC_BASE=0x40000000+0x10000+0x1000=0x40011000,该地址为GPIOC的基地址 #define GPIOD_BASE (APB2PERIPH_BASE + 0x1400) //GPIOD_BASE=0x40000000+0x10000+0x1400=0x40011400,该地址为GPIOD的基地址 #define GPIOE_BASE (APB2PERIPH_BASE + 0x1800) //GPIOE_BASE=0x40000000+0x10000+0x0800=0x40011800,该地址为GPIOE的基地址 #define GPIOF_BASE (APB2PERIPH_BASE + 0x1C00) //GPIOF_BASE=0x40000000+0x10000+0x0800=0x40011C00,该地址为GPIOF的基地址 #define GPIOG_BASE (APB2PERIPH_BASE + 0x2000) //GPIOG_BASE=0x40000000+0x10000+0x0800=0x40012000,该地址为GPIOG的基地址 #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 BITBAND(addr, bitnum) ((addr & 0xF0000000)+0x2000000+((addr &0xFFFFF)<<5)+(bitnum<<2)) #define MEM_ADDR(addr) *((volatile unsigned long *)(addr)) #define LED0 MEM_ADDR(BITBAND(GPIOA_ODR_Addr,8)) //#define LED0 *((volatile unsigned long *)(0x422101a0)) //PA8 //定义typedef类型别名 typedef struct { volatile unsigned int CR; volatile unsigned int CFGR; volatile unsigned int CIR; volatile unsigned int APB2RSTR; volatile unsigned int APB1RSTR; volatile unsigned int AHBENR; volatile unsigned int APB2ENR; volatile unsigned int APB1ENR; volatile unsigned int BDCR; volatile unsigned int CSR; } RCC_TypeDef; #define RCC ((RCC_TypeDef *)0x40021000) //定义typedef类型别名 typedef struct { volatile unsigned int CRL; volatile unsigned int CRH; volatile unsigned int IDR; volatile unsigned int ODR; volatile unsigned int BSRR; volatile unsigned int BRR; volatile unsigned int LCKR; } GPIO_TypeDef; //GPIOA指向地址GPIOA_BASE,GPIOA_BASE地址存放的数据类型为GPIO_TypeDef #define GPIOA ((GPIO_TypeDef *)GPIOA_BASE) void LEDInit( void ) { RCC->APB2ENR|=1<<2; //GPIOA 时钟开启 GPIOA->CRH&=0XFFFFFFF0; GPIOA->CRH|=0X00000003; } //粗略延时 void Delay_ms( volatile unsigned int t) { unsigned int i,n; for (n=0;n<t;n++) for (i=0;i<800;i++); } int main(void) { LEDInit(); while (1) { LED0=0;//LED熄灭 Delay_ms(500);//延时时间 LED0=1;//LED亮 Delay_ms(500);//延时时间 } }

    5.保存

    注意:一定要·add sourcegroup,不然会出现没有错误· 如下图·: 最后成功编译:

    6.调试

    (1)首先点击dedug进行如下设置:

    (2)点击setting后弹出下图点OK

    7.点击start debug 开始操作

    8,再次点击start debug结束

    二:总结

    第一次使用的话过程比较繁琐,很多步骤会忘记,就会导致失败,要注意细。

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