基于msp430的数据传输程序.docx

1、基于msp430的数据传输程序基于msp430的数据传输程序发送#include #include #include /*dht11*/unsigned char FLAG; unsigned char temp,TEMP;unsigned char T_data_H,T_data_L,RH_data_H,RH_data_L,checkdata; unsigned char T_data_H_temp,T_data_L_temp,RH_data_H_temp,RH_data_L_temp,checkdata_temp; unsigned char comdata; /*/unsigned ch

2、ar a,time;unsigned char RH_DATA,TH_DATA,ADD,a,data;unsigned char table=H: % T: c ;unsigned char table1=Light: add:01 ;void delay(int xms) /i=xms即延时约xms毫秒 int i,j; for(i=xms;i0;i-) for(j=110;j0;j-);void delay_10us() unsigned char i; for(i=0;i40;i+);void write_com(unsigned char com)/写液晶命令函数 P3DIR = 0x

3、03; P3OUT &= BIT0; /rs=0 P3OUT &= BIT1; /lcden=0 P2DIR = 0xff; P2OUT = com; /P0=com delay(10); P3OUT |= BIT1;/lcden=1 delay(10); P3OUT &= BIT1; /lcden=0void write_date(unsigned char date)/写液晶数据函数 P3DIR = 0x03; P3OUT |= BIT0; /rs=1 P3OUT &= BIT1; /lcden=0 P2DIR = 0xff; P2OUT = date; /P0=date delay(10

4、); P3OUT |= BIT1;/lcden=1 delay(10); P3OUT &= BIT1;/lcden=0void init_1602()/初始化函数 unsigned char num; P3DIR = 0x03; P3OUT &= BIT1; /lcden=0 P3OUT &= BIT0; /rs=0 write_com(0x38);/1602液晶初始化 write_com(0x0c); write_com(0x06); write_com(0x01); write_com(0x80); for(num=0;num15;num+)/写入液晶固定部分显示 write_date(t

5、ablenum); delay(10); write_com(0x80+0x40); for(num=0;num15;num+) write_date(table1num); delay(10); void write_shuzi(unsigned char add,char date) char shi,ge; shi=date/10; ge=date%10; write_com(0x80+add); write_date(0x30+shi); write_date(0x30+ge);void write_shuzi1(unsigned char add,char date) char sh

6、i,ge; shi=date/10; ge=date%10; write_com(0x80+0x40+add); write_date(0x30+shi); write_date(0x30+ge);void int_clk() unsigned char i; BCSCTL1 &= XT2OFF; /打开xt振荡器 BCSCTL2 |= SELM1+SELS; /MCLK为8MHZ,SMCLK为1MHZ do IFG1 &= OFIFG; /清除震荡错误标志 for(i = 0;i 100;i+) _NOP(); /延时 while(IFG1 & OFIFG) != 0);/如果标志为1，则继

7、续循环等待 IFG1 &= OFIFG;void int_usart() U0CTL |= SWRST;/复位串口 U0CTL |= CHAR;/8位数据 U0TCTL |= SSEL1; /时钟设置 U0BR0 = 0x00; U0BR1 = 0x0d; UMCTL0 = 0x00;/波特率2400 ME1 |= UTXE0+URXE0;/使能接收和发送 U0CTL &= SWRST;/清除串口复位信号 P3SEL |= BIT4; P3SEL |= BIT5;/使用扩展功能 P3DIR |= BIT4; sent_byte(unsigned char data) while(IFG1 &

8、UTXIFG0)=0);/判断发送缓存区是否结束 U0TXBUF = data;void int_pwm() P1SEL |= BIT2;/P1.2作为pwm输出 P1DIR |= BIT2; TACCR0 = 26; /pwm频率为10k.8000k/800=10k TACCR1 = 13; /占空比1：1 TACCTL1 = OUTMOD0+OUTMOD1+OUTMOD2;/输出模式选择 TACTL |= TASSEL1+MC0;void COM(void) /数据0 1确认 unsigned char i; for(i=0;i8;i+) FLAG=2; while(!(P1IN & BI

9、T7)&FLAG+); /1bit是否结束 delay_10us(); temp=0;/ 26us28us 表示为0 if(P1IN & BIT7) temp=1; / 超过28us依然为高电平 表示为1 FLAG=2; while(P1IN & BIT7)&FLAG+); if(FLAG=1) break;/FLAG溢出超时则跳出for循环 /判断数据位是0还是1 / 如果高电平高过预定0高电平值则数据位为 1 comdata=1; comdata|=temp; void init_DHT11() P1DIR |= BIT7; P1OUT |= BIT7; delay(400); void

10、RH(void) /-湿温度读取子程序 - P1DIR |= BIT7; P1OUT &= BIT7; delay(300); /主机拉低高于18ms P1OUT |= BIT7;/总线由上拉电阻拉高 主机延时20us delay_10us(); P1DIR &= BIT7;/主机设为输入 判断从机响应信号 if(!(P1IN & BIT7)/判断从机是否有低电平响应信号 如不响应则跳出，响应则向下运行 FLAG=2; while(!(P1IN & BIT7)&FLAG+);/判断从机是否发出 80us 的低电平响应信号是否结束 FLAG=2; while(P1IN & BIT7)&FLAG+

11、);/判断从机是否发出 80us 的高电平， 如发出则进入数据接收状态 COM();/数据接收状态 RH_data_H_temp=comdata; /湿度整数8位 COM(); RH_data_L_temp=comdata; /湿度小数8位 COM(); T_data_H_temp=comdata; /温度整数8位 COM(); T_data_L_temp=comdata; /温度小数8位 COM(); checkdata_temp=comdata; /校验位 P1DIR |= BIT7; P1OUT |= BIT7; P1DIR &= BIT7; temp=(T_data_H_temp+T_

12、data_L_temp+RH_data_H_temp+RH_data_L_temp); if(temp=checkdata_temp)/数据校验 正确执行 RH_data_H=RH_data_H_temp; RH_data_L=RH_data_L_temp; T_data_H=T_data_H_temp; T_data_L=T_data_L_temp; checkdata=checkdata_temp; void main( void ) WDTCTL = WDTPW + WDTHOLD;/关看门狗 int_clk(); /初始化时钟 init_1602(); int_usart(); ini

13、t_DHT11(); int_pwm(); P4DIR &= BIT0; while(1) RH(); delay(1500); write_shuzi(2,RH_data_H); delay(50); write_shuzi(11,T_data_H); delay(50); if(P4IN&BIT0)=0) a=0; if(P4IN&BIT0)=1) a=1; write_shuzi1(6,a); RH_DATA = (RH_data_H2)|0);/湿度 TH_DATA = (T_data_H2)|1);/温度 ADD = (a2)|2);/地址 sent_byte( RH_DATA );

14、 delay(1000); sent_byte( TH_DATA ); delay(1000); sent_byte( ADD ); delay(1000); /data = U0RXBUF; /write_shuzi1(8,data); 接收：#include #include #include unsigned int m1,m2,data,data1,data2,data3,add;unsigned char table=H: % T: c ;unsigned char table1=Light: Add: ;/*dht11*/*/void delay(int xms) /i=xms即延

15、时约xms毫秒 int i,j; for(i=xms;i0;i-) for(j=110;j0;j-);void delay1ms() unsigned int k; for(k=0;k0;h-) delay1ms();void write_com(unsigned char com)/写液晶命令函数 P6DIR = 0x03; P6OUT &= BIT0; /rs=0 P6OUT &= BIT1; /lcden=0 P2DIR = 0xff; P2OUT = com; /P0=com delay(15); P6OUT |= BIT1;/lcden=1 delay(15); P6OUT &= B

16、IT1; /lcden=0void write_date(unsigned char date)/写液晶数据函数 P6DIR = 0x03; P6OUT |= BIT0; /rs=1 P6OUT &= BIT1; /lcden=0 P2DIR = 0xff; P2OUT = date; /P0=date delay(15); P6OUT |= BIT1;/lcden=1 delay(15); P6OUT &= BIT1;/lcden=0void init_1602()/初始化函数 unsigned char num; P4DIR = 0x03; P4OUT &= BIT1; /lcden=0

17、P4OUT &= BIT0; /rs=0 write_com(0x38);/1602液晶初始化 write_com(0x0c); write_com(0x06); write_com(0x01); write_com(0x80); for(num=0;num15;num+)/写入液晶固定部分显示 write_date(tablenum); delay(15); write_com(0x80+0x40); for(num=0;num15;num+) write_date(table1num); delay(15); void write_shuzi(unsigned char add,char

18、date) char shi,ge; shi=date/10; ge=date%10; write_com(0x80+add); write_date(0x30+shi); write_date(0x30+ge);void write_shuzi1(unsigned char add,char date) char shi,ge; shi=date/10; ge=date%10; write_com(0x80+0x40+add); write_date(0x30+shi); write_date(0x30+ge);void int_clk() unsigned char i; BCSCTL1

19、&= XT2OFF; /打开xt振荡器 BCSCTL2 |= SELM1+SELS; /MCLK为8MHZ,SMCLK为1MHZ do IFG1 &= OFIFG; /清除震荡错误标志 for(i = 0;i 0) P3DIR |= BIT1; P3OUT |= BIT1;/SCK=1; delayms(1); P3OUT &= BIT1;/SCK=0; delayms(1); z-; void init_yuyin() P3DIR |= BIT0; P3OUT |= BIT0;/NOW=1; P3DIR |= BIT2; P3OUT &= BIT2;/RST=0; P3DIR |= BIT1

20、; P3OUT &= BIT1;/SCK=0; P3OUT |= BIT2;/RST=1; delayms(2); P3OUT &= BIT2;/RST=0;void add_yuyin(unsigned char a) Music(a); delayms(50); P3DIR &= BIT0; while(P3IN&BIT0)=0); delay(1000); /P6DIR |= BIT3; void yuyin_wendu(unsigned char tem) unsigned char ge,shi; shi=tem/10; ge=tem%10; add_yuyin(0); add_yu

21、yin(23); add_yuyin(shi+1); add_yuyin(11); add_yuyin(ge+1); add_yuyin(20); void yuyin_shidu(unsigned char shidu) unsigned char ge,shi; shi=shidu/10; ge=shidu%10; add_yuyin(0); add_yuyin(24); add_yuyin(21); add_yuyin(shi+1); add_yuyin(11); add_yuyin(ge+1); void main( void ) WDTCTL = WDTPW + WDTHOLD;/关

22、看门狗 int_clk(); /初始化时钟 init_1602(); int_usart(); init_yuyin(); write_shuzi1(13,1); while(1) data = U0RXBUF;/读取接收到的数据 while(IFG1 & URXIFG0)=0); add = data&0x03; delay(50); switch(add) case 0: data1=(data2)&0x3f); write_shuzi(2,data1); m1+; if(m1=100) yuyin_shidu(data1); m1=0; break; case 1: data2=(data2)&0x3f); write_shuzi(11,data2); m2+; if(m2=100) yuyin_wendu(data2); m2=0; break; case 2:data3=(data2)&0x3f); write_shuzi1(6,data3); break;