AVR_UART_DIWEN.rar_DHT21 avr_串口 触摸屏_湿度传感器_迪文串口屏_迪文屏串口

#include<iom128v.h> #include<macros.h> #pragma interrupt_handler uart_rx:19 #pragma interrupt_handler miao:15 #define data_output DDRA|=0X01; #define data_input DDRA&=0XFE; #define sck_output DDRA|=0X02; #define sck_input DDRA&=0XFD; #define data_1 PORTA|=0X01; #define data_0 PORTA&=0XFE; #define sck_1 PORTA|=0X02; #define sck_0 PORTA&=0XFD; #define data_in (PINA&0X01) #define ack_0 0 #define ack_1 1 #define cm_temp 0x03 // 温度测量 #define cm_humi 0x05 //湿度测量 #define write_REG 0X06 //写状态寄存器 #define read_REG 0X07 //读状态寄存器 #define reset 0x1e //软件复位 #define TEMP 0 #define HUMI 1 const float C1=-4.0; // for 12 Bit const float C2=+0.045; // for 12 Bit const float C3=-0.0000028; // for 12 Bit const float T1=+0.01; // for 14 Bit @ 5V const float T2=+0.00008; // for 14 Bit @ 5V unsigned char rdata,flag=0,flag1=0,flag2=0,flag3=0; //rdata串口中断接收数据，flag接受中断标志，flag1是readkey标志 ,flag2闹钟标志,flag3温湿度标志 unsigned char nhourtemp=0x00; //闹钟时计数标志 unsigned char nminutetemp=0x00;//闹钟分计数标志 static unsigned int szset=0; //szset时钟设置标志 static unsigned int nzset=0; //nzset闹钟设置标志 unsigned char nhour=0;//闹钟 unsigned char num=0;//闹钟 unsigned char nminute=0; unsigned char nmode=0x31; //unsigned char npluse=0x30; unsigned char arry[20]; static int count=0; #define mclk 8000000 void delay(unsigned int N); //ms延时? void com_init(unsigned int baud); //串口初始化 void uart_rx(); //串口接收 void uart_sendB(unsigned char data); //发送一个字符 void uart_sentstr(unsigned char *p,unsigned char s); //向串口发送一个数据串 unsigned char read_key(); //读取键值 unsigned char key_function(); //键功能 void sys_init(); //系统初始化 void qk_sz(); //清空数组 void beep(); //蜂鸣器 void nz_alarm(); unsigned char hand[2]={0XAA,0X00}; //握手 unsigned char qdtp1[3]={0XAA,0X70,0X01}; //切换到图片1 unsigned char handfh[20]={0XAA,0X00,0X4F,0X4B,0X5F,0X56,0X35,0X2E,0X36,0X03,0X04,0X6B,0X00,0X00,0XCC,0X33,0XC3,0X3C };// 握手返回指令 unsigned char end[4]={0XCC,0X33,0XC3,0X3C}; //结束指令 unsigned char szxs[11]={0XAA,0X9B,0XFF,0X01,0X04,0XF8,0X1F,0X00,0X23,0X00,0XBC}; //时钟显示 unsigned char nzxs1[6]={0XAA,0X6F,0X00,0X55,0X01,0XB3}; unsigned char nzxs2[6]={0X20,0XC4,0XA3,0XCA,0xBD,0X20}; //打开闹钟 unsigned char dkszyear[9]={0xAA,0x44,0x01,0x00,0x45,0x00,0xdc,0x19,0x03}; //时钟打开年 unsigned char dkszmonth[9]={0xAA,0x44,0x01,0x00,0x75,0x00,0xdc,0x19,0x03}; //时钟打开月 unsigned char dkszday[9]={0xAA,0x44,0x01,0x00,0xA7,0x00,0xdc,0x19,0x03}; //时钟打开天 unsigned char dkszhour[9]={0xAA,0x44,0x01,0x00,0xD7,0x00,0xdc,0x19,0x03}; //时钟打开小时 unsigned char dkszminute[9]={0xAA,0x44,0x01,0x01,0x07,0x00,0xdc,0x19,0x03}; //时钟打开分钟 unsigned char gbgb[9]={0xAA,0x44,0x00,0x01,0x07,0x00,0xdc,0x19,0x03}; //关闭光标 unsigned char readsz[3]={0xAA,0x9B,0x5A}; //读取时钟公历 unsigned char writesz[6]={0xAA,0XE7,0X55,0XAA,0X5A,0XA5}; //写时钟 unsigned char dknhour[9]={0xAA,0x44,0x01,0x00,0x56,0x01,0xD1,0x11,0x03 }; //打开闹钟时 unsigned char dknminute[9]={0xAA,0x44,0x01,0x00,0x79,0x01,0xD1,0x11,0x03}; //打开闹钟分 unsigned char dknmode[9]={0xAA,0x44,0x01,0x00,0xD5,0x01,0xD1,0x11,0x03}; //打开闹钟模式 unsigned char nhtemp[2]={0x30,0x30}; unsigned char nmtemp[2]={0x30,0x30}; unsigned char wendu[6]={0xAA,0x6F,0x00,0xB6,0x00,0x47}; //温度显示位置 unsigned char shidu[6]={0xAA,0x6F,0x01,0x3E,0x00,0x47}; void delay_nms(unsigned int n); void s_transstart(void); char write_byte(unsigned char value);//写一个字节 char read_byte(unsigned char ack);//读一个字节 void calc_sth11(float *p_humidity ,float *p_temperature); int measure(unsigned char mode); void wenshidu(); void delay_nms(unsigned int n) //N ms延时函数 { unsigned int i=0; for (i=0;i<n;i++) {asm("nop");} } void s_transstart(void) //启动时序 { data_output; sck_output; data_1; sck_0; delay_nms(20); sck_1; delay_nms(20); data_0; delay_nms(20); sck_0; delay_nms(20); sck_1; delay_nms(20); data_1; delay_nms(20); sck_0; delay_nms(20); } char write_byte(unsigned char value) //写入一个字节的命令，并且检查传感器是否正确接收了这个数据，返回值为0表示正确接收 { unsigned char i; char error; sck_output; data_output; sck_0; data_0; for(i=0x80;i>0;i/=2) { sck_0; if(i & value ) {data_1;} else {data_0;} delay_nms(20); sck_1; delay_nms(20); /* sck_0; delay_nms(20);*/ } sck_0; data_input; delay_nms(20); //data_1; //delay_nms(20); sck_1; delay_nms(20); //data_0; //delay_nms(20); if(data_in) error=1; else error=0; delay_nms(20); sck_0; data_output; return error; } char read_byte(unsigned char ack) //读一个字节的数据，并且向传感器发出一个字节的“已接收”信号 { unsigned char i,val=0; data_input; //sck_output; // data_1; // data_input; // data_0; //delay_little(); sck_0; for(i=0x80;i>0;i/=2) { sck_1; delay_nms(20); if(data_in) val=(val|i); sck_0; delay_nms(20); } // data_output; if(ack==1) {data_1;} else {data_0;} data_output; delay_nms(20); sck_1; delay_nms(20); /*sck_0; delay_nms(20); data_1; delay_nms(20);*/ return val; } /*void connectionreset(void) //连接 { unsigned char i; data_output; sck_output; data_1; sck_0; for(i=0;i<9;i++) { sck_1; delay_little(); sck_0; delay_little(); } s_transstart(); }*/ void calc_sth11(float *p_humidity ,float *p_temperature) { float rh=*p_humidity; // rh: Humidity [Ticks] 12 Bit float t=*p_temperature; // t: Temperature [Ticks] 14 Bit float rh_lin; // rh_lin: Humidity linear float rh_true; // rh_true: Temperature compensated humidity float t_C; // t_C : Temperature t_C=t*0.01 - 40; //calc. temperature from ticks rh_lin=C3*rh*rh + C2*rh + C1; //calc. humidity from ticks to [%RH] rh_true=(t_C-25)*(T1+T2*rh)+rh_lin; //calc. temperature compensated humidity [%RH] if(rh_true>100)rh_true=100; //cut if the value is outside of if(rh_true<0.1)rh_true=0.1; //the physical possible range *p_temperature=t_C; //return temperature *p_humidity=rh_true; //return humidity[%RH] } int measure(unsigned char mode) { //unsigned char error=0; //unsigned int i; unsigned char a,b; s_transstart(); switch(mode) { case 0 : write_byte(cm_temp); break; case 1 : write_byte(cm_humi); break; default: break; } data_input; while(data_in); //读取两个字节的数据 a=read_byte(0); b=read_byte(1); return (((int)a)<<8)+b; } void time1_init() { TCCR1B=0X04; TCNT1H=0X85; TCNT1L=0XED; TIMSK|=BIT(2); SREG|=BIT(7); } void wenshidu() { unsigned char i,j,k,m,n; float temp,humi; temp=measure(TEMP); humi=measure(HUMI); calc_sth11(&humi,&temp); i=(int)temp/10+0X30; j=(int)temp%10+0X30; if(humi>100) { n=(int)humi/100+0x30; } k=(int)humi/10+0X30; m=(int)humi%10+0X30; uart_sentstr(wendu,6); uart_sendB(i); uart_sendB(j); uart_sendB(0XA1); uart_sendB(0XE6); uart_sentstr(end,4); delay(100); uart_sentstr(shidu,6); if(humi>100) {uart_sendB(n);} uart_sendB(k); uart_sendB(m); uart_sendB(0X25); uart_sendB(0X52); uart_sendB(0X48); uart_sents