嵌入式软件设计第10次实验报告

学号：142021234 姓名：王凯

组别：第4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：

长按PWR_KEY键后网络状态指示灯对应的状态：

2、常用AT指令_准备工作：

3、常用AT命令_拨打电话

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";//¶¨ÒåÎÄ±¾

strcat(text,number);

strcat(text,";");

// printf("%s",text);

sendtext(text);//·¢ËÍÎÄ±¾

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); //³õÊ¼»¯ÑÓÊ±º¯Êý

uart_init(115200); //³õÊ¼»¯´®¿Ú²¨ÌØÂÊÎª115200

uart3_init(115200);

LCD_Init(); //LCD³õÊ¼»¯

tp_dev.init(); //´¥ÃþÆÁ³õÊ¼»¯

LCD_Clear(BLACK);

POINT_COLOR=YELLOW;//ÉèÖÃ×ÖÌåÎª»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){