基于keil 5的led闪烁程序编译

一、安装并打开keil5.10二、新建led.c文件三、源代码四、参考文献

一、安装并打开keil5.10

1.选择project 点击第一项创建新的工程

2.选择设备目标

① 这里选项可以自己选择

②

二、新建led.c文件

1.选择file，新建.c文件并进行编译 2.将led1.c文件添加进工程，并生成hex文件 ①右击source group1，选择“Add Existing Files to Group 'Source Group 1…”，选择led1.c，如下图： 选择led1.c后，点击add

②右击target1，选择“Options for Target ‘Target1’…”，将output下的“create hex file” 勾上，如下图： 3.编译并查看结果 程序正确 成功输出.hex文件

三、源代码

#define GPIOB_BASE (APB2PERIPH_BASE + 0x0C00) //GPIOB_BASE=0x40000000+0x10000+0x0C00=0x40010C00,address of GPIOB #define GPIOC_BASE (APB2PERIPH_BASE + 0x1000) //GPIOC_BASE=0x40000000+0x10000+0x1000=0x40011000,address of GPIOC #define GPIOD_BASE (APB2PERIPH_BASE + 0x1400) //GPIOD_BASE=0x40000000+0x10000+0x1400=0x40011400,address of GPIOD #define GPIOE_BASE (APB2PERIPH_BASE + 0x1800) //GPIOE_BASE=0x40000000+0x10000+0x0800=0x40011800,address of GPIOE #define GPIOF_BASE (APB2PERIPH_BASE + 0x1C00) //GPIOF_BASE=0x40000000+0x10000+0x0800=0x40011C00,address of GPIOF #define GPIOG_BASE (APB2PERIPH_BASE + 0x2000) //GPIOG_BASE=0x40000000+0x10000+0x0800=0x40012000,address of GPIOG #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 //define typedef type alias 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) //define typedef type alias 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 points to the address gpioa _ base, and the data type stored in gpioa _ base is gpio_typedef #define GPIOA ((GPIO_TypeDef *)GPIOA_BASE) void LEDInit( void ) { RCC->APB2ENR|=1<<2; //GPIOA Clock on GPIOA->CRH&=0XFFFFFFF0; GPIOA->CRH|=0X00000003; } //A rough time delay 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 goes out Delay_ms(500);//Delay time LED0=1;//Led bright Delay_ms(500);//Delay time } }

四、参考文献

1、百度百科 2、《STM32底座实验指导书》