一、STM 32程序
1.建立一个工程文件
2.选择STM32芯片
3.对所选芯片进行设置
4.编写源程序
- //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
- }
- }
复制代码
5.编译结果
二、程序的仿真调试
1.仿真前的设置
(1)点击魔法棒,进入设置界面
(2) 进入debug界面,左侧选择Use Simulator,右侧选择ULINK2/ME Cortex Debugger,最后点击Settings
(3) 进入setting界面,选择Autodelect
2.开始调试
首先选择Start Debug,然后利用调试工具开始进行调试操作
三、总结
安装pack installer的时候遇到了点麻烦,进行STM 32调试的时候遇到了诸多问题,通过这个练习,自己能够初步认识使用MDK建立一个工程,调试一个工程。但是缺少LED闪烁的仿真效果展示结果和过程。
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