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ARM开发环境入门

一.stm32简单程序编译（LED闪烁）1）创建新文件2）编写程序代码3）编译结果4）调试 二.51程序设计和仿真1.创建工程2）在keil中创建文件3）将文件与protues建立联系 三.总结

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一.stm32简单程序编译（LED闪烁）

1）创建新文件

1>打开Keil uVision5，点击Project，然后点击New uVision Project

2>选择使用的stm32芯片 3>对Run-Time Environment进行设置，点击ok，完成工程创建

2）编写程序代码

//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 } }

3）编译结果

4）调试

1>点击Options for target 2>选择Debug，左侧选择Use Simulator，右侧选择ULINK2/ME Cortex Debugger，最后点击Settings

3>弹出该框点ok 4>选择Start Debug，然后利用调试工具开始进行调试操作 5>结束调制，再次点击Start Debug，调制结束

二.51程序设计和仿真

1.创建工程

1>在proteus中创建一个新的工程

2>在protues中绘图，连接元器件

2）在keil中创建文件

1>创建一个新工程，建立一个新文件，在新文件中输入代码

#include<reg51.h> #define uchar unsigned char #define uint unsigned int sbit rs=P1^0; sbit rw=P1^1; sbit e=P1^2; sbit FMQ=P2^3; unsigned char year=20,month=4,day=24,week=5,sec=55,min=59,hour=7; unsigned char DL_hour1=8; unsigned char DL_min1=0; unsigned char DL_hour2=8; unsigned char DL_min2=45; unsigned char DL_hour3=8; unsigned char DL_min3=55; unsigned char DL_hour4=9; unsigned char DL_min4=40; unsigned char DL_hour5=10; unsigned char DL_min5=10; unsigned char DL_hour6=10; unsigned char DL_min6=55; unsigned char DL_hour7=11; unsigned char DL_min7=5; unsigned char DL_hour8=11; unsigned char DL_min8=50; unsigned char DL_hour9=14; unsigned char DL_min9=0; unsigned char DL_hour10=14; unsigned char DL_min10=40; unsigned char DL_hour11=14; unsigned char DL_min11=55; unsigned char DL_hour12=15; unsigned char DL_min12=40; unsigned char DL_hour13=16; unsigned char DL_min13=10; unsigned char DL_hour14=16; unsigned char DL_min14=55; unsigned char DL_hour15=17; unsigned char DL_min15=5; unsigned char DL_hour16=17; unsigned char DL_min16=50; void LCD_YANSHI(unsigned int i) { while(i–); } void Lcd1602_W_C(unsigned char c) { LCD_YANSHI(500); rs=0; rw=0; e=0; P0=c; e=1; LCD_YANSHI(10); e=0; } void Lcd1602_W_D(unsigned char dat) { LCD_YANSHI(500); rs=1; rw=0; e=0; P0=dat; e=1; LCD_YANSHI(10); e=0; rs=0; } void Lcd1602_Init() { LCD_YANSHI(500); Lcd1602_W_C(0x38); Lcd1602_W_C(0x06); Lcd1602_W_C(0x0c); Lcd1602_W_C(0x01); } void DISPLAY(); void Timer_INIT(); void main() { Lcd1602_Init(); Timer_INIT(); while(1) { DISPLAY(); } } void Timer_INIT() { TMOD = 0x01; //选择工作方式1 TH0=0Xfc; TL0=0X18; //1ms EA = 1; //打开总中断 ET0 = 1; //打开定时器0中断 TR0 = 1; //启动定时器0 } void DISPLAY() { Lcd1602_W_C(0x80+3); Lcd1602_W_D(‘2’); Lcd1602_W_D(‘0’); Lcd1602_W_D(‘0’+year/10); Lcd1602_W_D(‘0’+year%10); Lcd1602_W_D(’/’); Lcd1602_W_D(‘0’+month/10); Lcd1602_W_D(‘0’+month%10); Lcd1602_W_D(’/’); Lcd1602_W_D(‘0’+day/10); Lcd1602_W_D(‘0’+day%10); //–显示时钟–// Lcd1602_W_C(0xC0+4); Lcd1602_W_D(‘0’+hour/10); Lcd1602_W_D(‘0’+hour%10); Lcd1602_W_D(’:’); Lcd1602_W_D(‘0’+min/10); Lcd1602_W_D(‘0’+min%10); Lcd1602_W_D(’:’); Lcd1602_W_D(‘0’+sec/10); Lcd1602_W_D(‘0’+sec%10); } void time0() interrupt 1 { static unsigned int j; TH0=0Xfc; TL0=0X18; //1ms j++; if(j1000) //1s { j=0; sec++; if(sec60) //秒满60清零 { sec=0; min++; if(min60) //分满60清零 { min=0; hour++; if(hour24) { hour=0; day++; week++; if(week>7) { week=0; } if(((month1)||(month3)||(month5)||(month7)||(month8)||(month10)||(month12)) &&(day32) ) { day=1; month++; if(month13) { year++; month=0; } } if(((month4)||(month6)||(month9)||(month11)) &&(day31) ) { day=1; month++; } if((((year%4)0)&&(month2)) &&(day30) ) { day=1; month++; } if((((year%4)!=0)&&(month2)) &&(day==29) ) { day=1; month++; } } } } if((((hour==DL_hour1)&&(min==DL_min1))|| ((hour==DL_hour2)&&(min==DL_min2))|| ((hour==DL_hour3)&&(min==DL_min3))|| ((hour==DL_hour4)&&(min==DL_min4))|| ((hour==DL_hour5)&&(min==DL_min5))|| ((hour==DL_hour6)&&(min==DL_min6))|| ((hour==DL_hour7)&&(min==DL_min7))|| ((hour==DL_hour8)&&(min==DL_min8))|| ((hour==DL_hour9)&&(min==DL_min9))|| ((hour==DL_hour10)&&(min==DL_min10))|| ((hour==DL_hour11)&&(min==DL_min11))|| ((hour==DL_hour12)&&(min==DL_min12))|| ((hour==DL_hour13)&&(min==DL_min13))|| ((hour==DL_hour14)&&(min==DL_min14))|| ((hour==DL_hour15)&&(min==DL_min15))|| ((hour==DL_hour16)&&(min==DL_min16)))&&(week<=5)) { FMQ=0; } else { FMQ=1; } } }

2>然后进行编译和仿真

调试结果如下

说明过程与结果是正确的

3）将文件与protues建立联系

1>在protues中双击单片机，在弹出框中选择文件的路径，点击ok 2>点击右下角运行标识，运行结果如下

三.总结

本次作业是对单片机的软硬件设计，不但要使用keil来进行编程，还要使用protues对该实验的硬件进行仿真。不但要学会对程序的编写，而且要懂得对protues的使用，还要将keil编写的程序导入到protues当中，所以可以通过实验来熟悉简单的Proteus操作，达到更加熟练的程度。