嵌入式软件设计第十次

学号:140201127                 姓名毛倩倩

组别:第2组                实验地点:D19

 

一、实验目的:

1、了解GSM模块SIM900A的使用方法。

2、掌握使用串口发送AT命令驱动SIM900A的

   方法。

二、实验内容:

1.使用AT命令进行模块测试,拨打固定电话。

2.编写程序利用触摸屏完成任意电话的呼叫。

三、实验过程描述及结果展示:

实验器材:STM32F407开发板、LCD显示屏

1、实验原理

SIM900A跳线帽连接方式:

嵌入式软件设计第十次_第1张图片

长按PWR_KEY键后网络状态指示灯对应的状态:

嵌入式软件设计第十次_第2张图片

2、常用AT指令_准备工作:

嵌入式软件设计第十次_第3张图片

3、常用AT命令_拨打电话

嵌入式软件设计第十次_第4张图片

4、程序代码

#include "sys.h"

#include "delay.h" 

#include "usart.h"  

#include "led.h"

#include "lcd.h"

#include "key.h" 

#include "touch.h"

#include "text.h"

#include "w25qxx.h"

#include "malloc.h"

#include "ff.h"

#include "exfuns.h" 

 

const u16 POINT_COLOR_TBL[OTT_MAX_TOUCH]={RED,GREEN,BLUE,BROWN,GRED}; 

 

unsigned char Dialling[12];

char number[20] = "";

u8 iscalling=0;

int i,j;

 

//

void sendtext(char *p){

       while(*p!='\0'){

              USART_SendData(USART3,*p);

              delay_ms(50);

              p++;

       }

       USART_SendData(USART3,0x0D);

       delay_ms(50);

       USART_SendData(USART3,0x0A);

}

 

//²¦ºÅ

void call(){

       char text[40]="ATD";//¶¨ÒåÎı¾

       strcat(text,number);

       strcat(text,";");

//     printf("%s",text);

       sendtext(text);//·¢ËÍÎı¾

      

       POINT_COLOR=YELLOW;

       for(i=180;i<=300;i++)//bohao

              for(j=690;j<=750;j++)

                     LCD_DrawPoint(i,j);

       POINT_COLOR=BLUE;

       Show_Str(215,710,300,150,"¹Ò¶Ï",24,1);

       iscalling=1;

}

 

void hangup(){

       char text[40]="ATH";

       sendtext(text);

       number[0]='\0';

      

       POINT_COLOR=YELLOW;

       for(i=180;i<=300;i++)//bohao

              for(j=690;j<=750;j++)

                     LCD_DrawPoint(i,j);

       POINT_COLOR=BLUE;

       Show_Str(215,710,300,150,"²¦ºÅ",24,1);

       iscalling=0;

       POINT_COLOR=YELLOW;       

       for(i=200;i<=400;i++)

              for(j=90;j<=140;j++)

                     LCD_DrawPoint(i,j);

}

 

 

 

int main(void)

{

       int i,j;

       delay_init(168);  //³õʼ»¯ÑÓʱº¯Êý

       uart_init(115200);         //³õʼ»¯´®¿Ú²¨ÌØÂÊΪ115200

       uart3_init(115200);

      

      LCD_Init();                                //LCD³õʼ»¯

       tp_dev.init();                 //´¥ÃþÆÁ³õʼ»¯

      

       LCD_Clear(BLACK);

      POINT_COLOR=YELLOW;//ÉèÖÃ×ÖÌåΪ»ÆÉ«

       BACK_COLOR = BLACK;

      

       POINT_COLOR=WHITE;

       Show_Str(100,100,300,150,"ºÅÂëÇø£º",24,1);

       //

       POINT_COLOR=YELLOW;       

       for(i=200;i<=400;i++)

              for(j=90;j<=140;j++)

                     LCD_DrawPoint(i,j);

       //

       for(i=210;i<=270;i++)//5

              for(j=370;j<=430;j++)

                     LCD_DrawPoint(i,j);

       for(i=210;i<=270;i++)//2

              for(j=270;j<=330;j++)

                     LCD_DrawPoint(i,j);

       for(i=210;i<=270;i++)//8

              for(j=470;j<=530;j++)

                     LCD_DrawPoint(i,j);

       for(i=110;i<=170;i++)//1

              for(j=270;j<=330;j++)

                     LCD_DrawPoint(i,j);

       for(i=310;i<=370;i++)//3

              for(j=270;j<=330;j++)

                     LCD_DrawPoint(i,j);

       for(i=110;i<=170;i++)//4

              for(j=370;j<=430;j++)

                     LCD_DrawPoint(i,j);

       for(i=310;i<=370;i++)//6

              for(j=370;j<=430;j++)

                     LCD_DrawPoint(i,j);

       for(i=110;i<=170;i++)//7

              for(j=470;j<=530;j++)

                     LCD_DrawPoint(i,j);

       for(i=310;i<=370;i++)//9

              for(j=470;j<=530;j++)

                     LCD_DrawPoint(i,j);

       for(i=110;i<=170;i++)//*

              for(j=570;j<=630;j++)

                     LCD_DrawPoint(i,j);

       for(i=210;i<=270;i++)//0

              for(j=570;j<=630;j++)

                     LCD_DrawPoint(i,j);

       for(i=310;i<=370;i++)//#

              for(j=570;j<=630;j++)

                     LCD_DrawPoint(i,j);

       for(i=180;i<=300;i++)//bohao

              for(j=690;j<=750;j++)

                     LCD_DrawPoint(i,j);

       POINT_COLOR=BLUE;

       Show_Str(215,710,300,150,"²¦ºÅ",24,1);

       BACK_COLOR = BLACK;

       LCD_ShowString(135,290,200,100,24,"1");//1

       LCD_ShowString(235,290,200,100,24,"2");//2

       LCD_ShowString(335,290,200,100,24,"3");//3

       LCD_ShowString(135,390,200,100,24,"4");//4

       LCD_ShowString(235,390,200,100,24,"5");//5

       LCD_ShowString(335,390,200,100,24,"6");//6

       LCD_ShowString(135,490,200,100,24,"7");//7

       LCD_ShowString(235,490,200,100,24,"8");//8

       LCD_ShowString(335,490,200,100,24,"9");//9

       LCD_ShowString(135,590,200,100,24,"*");//*

       LCD_ShowString(235,590,200,100,24,"0");//0

       LCD_ShowString(335,590,200,100,24,"#");//#

      

 

       //ÊäºÅÂë

       while(1){

              POINT_COLOR=BLUE;      

              tp_dev.scan(0);//

              if(tp_dev.x[0]>110&&tp_dev.y[0]>270&&tp_dev.x[0]<170&&tp_dev.y[0]<330){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"1");//Ìí¼ÓºÅÂë

                     LCD_ShowString(200,100,336,24,24,number);//ÏÔʾºÅÂë

                    

              }

              if(tp_dev.x[0]>210&&tp_dev.y[0]>270&&tp_dev.x[0]<270&&tp_dev.y[0]<330){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"2");

                     LCD_ShowString(200,100,336,24,24,number);

              }

              if(tp_dev.x[0]>310&&tp_dev.y[0]>270&&tp_dev.x[0]<370&&tp_dev.y[0]<330){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"3");

                     LCD_ShowString(200,100,336,24,24,number);

             

              }

              if(tp_dev.x[0]>110&&tp_dev.y[0]>370&&tp_dev.x[0]<170&&tp_dev.y[0]<430){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"4");

                     LCD_ShowString(200,100,336,24,24,number);

                    

              }

              if(tp_dev.x[0]>210&&tp_dev.y[0]>370&&tp_dev.x[0]<270&&tp_dev.y[0]<430){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"5");

                     LCD_ShowString(200,100,336,24,24,number);

                    

              }

              if(tp_dev.x[0]>310&&tp_dev.y[0]>370&&tp_dev.x[0]<370&&tp_dev.y[0]<430){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"6");

                     LCD_ShowString(200,100,336,24,24,number);

                    

              }

              if(tp_dev.x[0]>110&&tp_dev.y[0]>470&&tp_dev.x[0]<170&&tp_dev.y[0]<530){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"7");

                     LCD_ShowString(200,100,336,24,24,number);

                    

              }

              if(tp_dev.x[0]>210&&tp_dev.y[0]>470&&tp_dev.x[0]<270&&tp_dev.y[0]<530){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"8");

                     LCD_ShowString(200,100,336,24,24,number);

                    

              }

              if(tp_dev.x[0]>310&&tp_dev.y[0]>470&&tp_dev.x[0]<370&&tp_dev.y[0]<530){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"9");

                     LCD_ShowString(200,100,336,24,24,number);

             

              }

              if(tp_dev.x[0]>110&&tp_dev.y[0]>570&&tp_dev.x[0]<170&&tp_dev.y[0]<630){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"*");

                     LCD_ShowString(200,100,336,24,24,number);

             

              }

              if(tp_dev.x[0]>210&&tp_dev.y[0]>570&&tp_dev.x[0]<270&&tp_dev.y[0]<630){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"0");

              LCD_ShowString(200,100,336,24,24,number);

             

              }

              if(tp_dev.x[0]>310&&tp_dev.y[0]>570&&tp_dev.x[0]<370&&tp_dev.y[0]<630){

                     while((tp_dev.sta & 0x80) == 0x80)

                            {tp_dev.scan(0);}

                     strcat(number,"#");

                     LCD_ShowString(200,100,336,24,24,number);

             

              }

             

             

              if(tp_dev.x[0]>180&&tp_dev.y[0]>690&&tp_dev.x[0]<300&&tp_dev.y[0]<750){

                     if(iscalling){

                            hangup();

                     }else{

                            call();

                     }

                     while(tp_dev.x[0]!=65535){tp_dev.scan(0);}

              }

             

              delay_ms(5);

              tp_dev.x[0] = 0xFFFF;

              tp_dev.y[0] = 0xFFFF;        

             

       }

 

 

}

 

 

实验结果展示:

嵌入式软件设计第十次_第5张图片

四、总结及实验心得:

      这次实验主要是编写一个手机打电话功能,我们组用的是我们组的杨鹏飞的手机卡,我们组能用的手机卡也就只有两个。其他都有残缺,通过调整显示器上的数字在键盘的大小和显示数字的位置,起初,我们组做的这个数字的位置总是不在黄色方格里,后来经过几番的调试才把位置调正确,所以说,做实验最重要的不是代码的编写,而是编写完成以后的调试,有小小的瑕疵整个程序都不能运行。

你可能感兴趣的:(嵌入式软件设计第十次)