SHT30.rar_SHT30 51单片机_SHT30 通讯_sht30 51代码_sht30和51_单片机sht30

#include <STC15.H> #include <intrins.h> #include <iic.h> #include <stdlib.h> //#include <IAP.h> sbit INT0 = 0xB2; typedef unsigned char u8; typedef unsigned int u16; u8 First_Int = 0; #define Buf2_Max 64 xdata u8 buffer[Buf2_Max]; u8 setwendu; sbit bb=P3^2; sbit aa=P1^0; void UartInit(void) //9600bps@11.0592MHz { //P_SW1=0x40; //修改串口1至P3.6 P3.7. SCON = 0x50; //8位数据,可变波特率 AUXR |= 0x01; //串口1选择定时器2为波特率发生器 AUXR |= 0x04; //定时器2时钟为Fosc,即1T T2L = 0xE0; //设定定时初值 T2H = 0xFE; //设定定时初值 AUXR |= 0x10; //启动定时器2 ES = 1; //串口中断打开 EA = 1; //总中断允许 } void Uart() interrupt 4 using 2 { ES=0; // if (RI) { RI=0; // buffer[First_Int] = SBUF; // First_Int++; // if(First_Int > Buf2_Max) // { First_Int = 0; } } if (TI) { TI=0; // } ES=1; // } void UART1_SendData(u8 dat) //发送8位，一个字节数 { ES=0; SBUF=dat; //sfr SBUF = 0x99; while(TI!=1); TI=0; //sbit TI = SCON^1; sfr SCON = 0x98; ES=1; } void Delay1000ms() //@11.0592MHz 延时1s发送 { unsigned char i, j, k; _nop_(); _nop_(); i = 43; j = 6; k = 203; do { do { while (--k); } while (--j); } while (--i); } void exint0() interrupt 0 //判断旋钮方向 { unsigned char i0, j0; EX0 = 0; _nop_(); _nop_(); _nop_(); i0 = 11; j0 = 190; do { while (--j0); } while (--i0); if(aa!=bb) { setwendu++; } if(aa==bb) {setwendu--;} EX0 = 1; } void main() { u8 fff =0x00; u8 ii = 0x00; setwendu = 0x64; INT0 = 1; IT0 = 0; EX0 = 1; UartInit(); while(1) { readth(); for(ii=0;ii<12;ii++) { fff=result[ii]; UART1_SendData(fff); } Delay1000ms(); //UART1_SendData(setwendu); } }