atmega88 采集温湿度传感器SHT10

/* * SHT1X传感器驱动程序库 *------------------------------------------------------------------ */ #include <stdio.h> #include <string.h> #include "Sht10.h" #if defined( HAL_UART_DMA ) && HAL_UART_DMA #include "hal_dma.h" #endif extern unsigned char Sht1x; /* 延时 -OK- *-------------------------------------------- */ void NOP(int i) { int j,k; for(k=0;k<i;k++){ for(j=0;j<100;j++); } } /* SHT1X复位 -OK- *-------------------------------------------- */ void Sht1xRest(void) { unsigned char i; if(Sht1x==0) //一号传感器 { for(i = 0; i < 9; i++) { SHT1X_SCK1_H(); //SCK高电平 NOP(1); SHT1X_SCK1_L(); //SCK低电平 NOP(1); } Sht1xStat(); } else { for(i = 0; i < 9; i++) { SHT1X_SCK2_H(); NOP(1); SHT1X_SCK2_L(); NOP(1); } Sht1xStat(); } } /* 向SHT1X发送数据 -OK- *-------------------------------------------- * 入口参数：待发送数据 */ unsigned char Sht1xSend(unsigned char data) { unsigned char i; if(Sht1x==0) { SHT1X_SCK1_L(); for(i = 0; i < 8; i++) { if(data&0x80) { SHT1X_DAT1_H(); } else { SHT1X_DAT1_L(); } data <<= 1; SHT1X_SCK1_H(); NOP(1); SHT1X_SCK1_L(); NOP(1); } if(Sht1xWaitForAck() == 0) return 1; else return 0; } else { SHT1X_SCK2_L(); for(i = 0; i < 8; i++) { if(data&0x80) { SHT1X_DAT2_H(); } else { SHT1X_DAT2_L(); } data <<= 1; SHT1X_SCK2_H(); NOP(1); SHT1X_SCK2_L(); NOP(1); } if(Sht1xWaitForAck() == 0) return 1; else return 0; } } /* SHT1X初始化 -OK- *-------------------------------------------- */ void Sht1xINIT(void) { Sht1xInit(); Sht1xRest(); } /* 读SHT1X -OK- *-------------------------------------------- */ unsigned short Sht1xRead(unsigned char option) { unsigned short temp = 0; unsigned char i; if(Sht1x==0) { Sht1xStat(); if(Sht1xSend(option&0x1f) == 0) return 1;//芯片没有应答 SHT1X_DATA_IN1(); //引脚输入状态 for(i = 0;i<10;i++) //延时等转换完成 Sht1xDelay(30000); SHT1X_SCK1_L(); NOP(1); SHT1X_SCK1_H(); NOP(1); if(SHT1X_DAT1_READ() != 0) //读DAT引脚 { return 2;//芯片没有响应 转换完成 } SHT1X_SCK1_L(); NOP(1); for(i = 0;i<7;i++) { SHT1X_SCK1_H(); NOP(1); temp <<= 1; if(SHT1X_DAT1_READ()) { temp |= 1; } SHT1X_SCK1_L(); NOP(1); } SHT1X_DATA_OUT1(); NOP(1); SHT1X_DAT1_L(); NOP(1); SHT1X_SCK1_H(); NOP(1);NOP(1); SHT1X_SCK1_L(); NOP(1); NOP(1); SHT1X_DATA_IN1(); for(i = 0;i<8;i++) { SHT1X_SCK1_H(); NOP(1); temp <<= 1; if(SHT1X_DAT1_READ()) { temp |= 1; } SHT1X_SCK1_L(); NOP(1); } SHT1X_DATA_OUT1(); NOP(1); SHT1X_DAT1_H(); SHT1X_SCK1_H(); NOP(1); SHT1X_SCK1_L(); } else { Sht1xStat(); if(Sht1xSend(option&0x1f) == 0) return 1;//芯片没有应答 SHT1X_DATA_IN2(); for(i = 0;i<10;i++)//等转换完成 Sht1xDelay(30000); SHT1X_SCK2_L(); NOP(1); SHT1X_SCK2_H(); NOP(1); if(SHT1X_DAT2_READ() != 0) { return 2;//芯片没有响应 转换完成 } SHT1X_SCK2_L(); NOP(1); for(i = 0;i<7;i++) { SHT1X_SCK2_H(); NOP(1); temp <<= 1; if(SHT1X_DAT2_READ()) { temp |= 1; } SHT1X_SCK2_L(); NOP(1); } SHT1X_DATA_OUT2(); NOP(1); SHT1X_DAT2_L(); NOP(1); SHT1X_SCK2_H(); NOP(1);NOP(1); SHT1X_SCK2_L(); NOP(1); NOP(1); SHT1X_DATA_IN2(); for(i = 0;i<8;i++) { SHT1X_SCK2_H(); NOP(1); temp <<= 1; if(SHT1X_DAT2_READ()) { temp |= 1; } SHT1X_SCK2_L(); NOP(1); } SHT1X_DATA_OUT2(); NOP(1); SHT1X_DAT2_H(); SHT1X_SCK2_H(); NOP(1); SHT1X_SCK2_L(); } return temp; } /* SHT1X读1 -OK- *-------------------------------------------- */ unsigned char Sht1xRead1(unsigned char option) { if(Sht1x==0) { Sht1xStat(); if(Sht1xSend(option&0x1f) == 0) return 1;//芯片没有应答 SHT1X_DATA_IN1(); } else { Sht1xStat(); if(Sht1xSend(option&0x1f) == 0) return 1;//芯片没有应答 SHT1X_DATA_IN2(); } return 0; } /* SHT1X读2 -OK- *-------------------------------------------- */ unsigned short Sht1xRead2(unsigned char option) { unsigned short temp = 0; unsigned char i; if(Sht1x==0) { SHT1X_SCK1_L(); NOP(1); SHT1X_SCK1_H(); NOP(1);NOP(1);NOP(1); if(SHT1X_DAT1_READ() != 0) { return 2;//芯片没有响应 转换完成 } SHT1X_SCK1_L(); NOP(1); for(i = 0;i<7;i++) { SHT1X_SCK1_H(); NOP(1); temp <<= 1; if(SHT1X_DAT1_READ()) { temp |= 1; } SHT1X_SCK1_L(); NOP(1); } SHT1X_DATA_OUT1(); NOP(1); SHT1X_DAT1_L(); NOP(1); SHT1X_SCK1_H(); NOP(1);NOP(1); SHT1X_SCK1_L(); NOP(1); NOP(1); SHT1X_DATA_IN1(); for(i = 0;i<8;i++) { SHT1X_SCK1_H(); NOP(1); temp <<= 1; if(SHT1X_DAT1_READ()) { temp |= 1; } SHT1X_SCK1_L(); NOP(1); } SHT1X_DATA_OUT1(); NOP(1); SHT1X_DAT1_H(); SHT1X_SCK1_H(); NOP(1); SHT1X_SCK1_L(); } else { SHT1X_SCK2_L(); NOP(1); SHT1X_SCK2_H(); NOP(1);NOP(1);NOP(1); if(SHT1X_DAT2_READ() != 0) { return 2;//芯片没有响应 转换完成 } SHT1X_SCK2_L(); NOP(1); for(i = 0;i<7;i++) { SHT1X_SCK2_H(); NOP(1); temp <<= 1; if(SHT1X_DAT2_READ()) { temp |= 1; } SHT1X_SCK2_L(); NOP(1); } SHT1X_DATA_OUT2(); NOP(1); SHT1X_DAT2_L(); NOP(1); SHT1X_SCK2_H(); NOP(1);NOP(1); SHT1X_SCK2_L(); NOP(1); NOP(1); SHT1X_DATA_IN2(); for(i = 0;i<8;i++) { SHT1X_SCK2_H(); NOP(1); tem