嵌入式软件设计第12次实验报告

学号：140201135 姓名：沈锦鑫

组别：第7组实验地点：D19

一、实验目的：

1.掌握通过GSM短信远程与嵌入式设备进行交互的方法。

二、实验内容：

1.编写程序把嵌入式开发板采集到的温度信息通过GSM短信传送给指定号码。（每10秒发送1次）

2.编写程序，使手机可以通过短信指令的方式控制嵌入式开发板的蜂鸣器和LED灯。（比如手机编辑“BEEP_ON”和“BEEP_OFF”控制嵌入式开发板的蜂鸣器）

三、实验过程描述及结果展示：

#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"
#include <string.h>
#include "dht11.h"

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

extern u16 USART3_RX_STA;
extern u8 USART3_RX_BUF[400];

void LCD_Draw_Circle(u16 x0,u16 y0,u8 r);
unsigned char cnt =0;
u8 TimeCnt =0;

unsigned char *SMS = 0;
u8 SMS_string[10]={"AT+CMGR="};

//定时器6中断服务器程序
void TIM6_DAC_IRQHandler(void)
{
if(TIM_GetITStatus(TIM6,TIM_IT_Update)!=RESET)//判断是否是更新中
{
TIM_ClearITPendingBit(TIM6,TIM_IT_Update);//清除TIM6更新中断标志
TimeCnt++;
}
}

int main(void)
{

// NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(168); //初始化延时函数
uart_init(115200); //初始化串口波特率为115200
uart3_init(115200);

LED_Init(); //初始化LED
KEY_Init();
LCD_Init(); //LCD初始化
tp_dev.init(); //触摸屏初始化

LCD_Clear(BLACK);
POINT_COLOR=YELLOW;//设置字体为黄色
BACK_COLOR = BLACK;

//以下代码初始化定时器
{
NVIC_InitTypeDef NVIC_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6,ENABLE);

//定时器初始化
TIM_TimeBaseStructure.TIM_Period = 1000-1;
TIM_TimeBaseStructure.TIM_Prescaler = 8400-1;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM6,&TIM_TimeBaseStructure);

TIM_ITConfig(TIM6,TIM_IT_Update,ENABLE);//使能指定的TIM6中断，允许更新中断

NVIC_InitStructure.NVIC_IRQChannel = TIM6_DAC_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//IRQ通道使能
NVIC_Init(&NVIC_InitStructure);//根据指定的参数初始化NVIC寄存器
}
TIM_Cmd(TIM6,ENABLE);//启动定时器6

//以下代码初始化温湿度传感器
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOG,ENABLE);

GPIO_InitStructure.GPIO_Pin=GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_UP;
GPIO_Init(GPIOG,&GPIO_InitStructure);

DHT11_Rst();
while(DHT11_Check());
}
//以下代码配置蜂鸣器
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOF,ENABLE);

GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_DOWN;
GPIO_Init(GPIOF,&GPIO_InitStructure);
}
//初始化SIM900A
{
unsigned char temp;
unsigned char send_string0[] = {"AT+CNMI=2,1x0dx0a"};
u8 send_string1[] = {"AT+CMGF=1 "};
u8 send_string2[] = {"AT+CSCS="GSM" "};

for(temp=0;temp<2;temp++)
{
USART_SendData(USART3,'A');
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
USART_SendData(USART3,'T');
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
USART_SendData(USART3,'0x0D');
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
USART_SendData(USART3,'0x0A');
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
delay_ms(100);

for(temp=0;temp<13;temp++)//发送AT+CNMI=2,1x0dx0a
{
USART_SendData(USART3,send_string0[temp]);
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
delay_ms(100);

for(temp=0;temp<11;temp++)//发送AT+CMGF=1
{
USART_SendData(USART3,send_string1[temp]);
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
delay_ms(100);

for(temp=0;temp<15;temp++)//发送AT+CSCS="GSM"
{
USART_SendData(USART3,send_string2[temp]);
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
delay_ms(100);
}
USART3_RX_STA = 0;
while(1)
{
if(TimeCnt>=100)
{
TimeCnt=0;
printf("Time is out! ");
//以下代码把DHT11采集到的当前温度用短信的形式发送到固定号码
{
u8 i;
u8 send_string1[] = {"AT+CMGS="13021257803" "};
u8 add_ascii[]={"x1A"};
u8 sms_temperature[]={"current temperature:"};
u8 temper[2];
u8 temperature,humidity;

DHT11_Read_Data(&temperature,&humidity);

temper[0]=(temperature/10)+0x30;
temper[1]=(temperature%10)+0x30;

strcat(sms_temperature,temper);
strcat(sms_temperature,add_ascii);

USART_ClearFlag(USART3,USART_FLAG_TC);

printf("send_string1=%s ",send_string1);

for(i=0;i<23;i++)
{
USART_SendData(USART3,send_string1[i]);
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
delay_ms(100);

printf("sms_temperature=%s ",sms_temperature);
for(i=0;i<23;i++)
{
USART_SendData(USART3,sms_temperature[i]);
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
delay_ms(100);
}
}
//以下代码监控是否有驱动BEEP的短信指令
if(USART3_RX_STA & 0x8000)
{
char* p_display;
USART3_RX_BUF[USART3_RX_STA & 0x7FFF]=0;
if(p_display=strstr((const char*)USART3_RX_BUF,(const char*)"+CMTI:"))
{
p_display=p_display+12;
SMS=p_display;
{
u8 i;
u8 send_string[100] = {"AT+CMGR="};
u8 data_r_n[] = {" "};
char *p_display;

USART_ClearFlag(USART3,USART_FLAG_TC);

strcat(send_string,SMS);
strcat(send_string,data_r_n);

for(i=0;i<12;i++)
{
USART_SendData(USART3,send_string[i]);
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
}
}
if(p_display=strstr((const char*)USART3_RX_BUF,(const char*)"+32"))
{
if(strstr((const char*)USART3_RX_BUF,(const char*)"BEEP_ON"))
{
GPIO_SetBits(GPIOF,GPIO_Pin_8);
}
if(strstr((const char*)USART3_RX_BUF,(const char*)"BEEP_OFF"))
{
GPIO_ResetBits(GPIOF,GPIO_Pin_8);
}
}
USART3_RX_STA=0;
}
}
}

四、总结及实验心得：