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110VCGQ/模块资料/aht20_stm32 demo v1_4/v1.5/AHT20.c

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新增V6
2024-11-18 10:09:39 +08:00
/*******************************************/
/*@<40><>Ȩ<EFBFBD><C8A8><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>ݰ<EFBFBD><DDB0>ɵ<EFBFBD><C9B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹<EFBFBD>˾ */
/*@<40><><EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD>ʪ<EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5> */
/*@<40>汾<EFBFBD><E6B1BE>V1.2 */
/*******************************************/
#include "stm32f10x.h"
#include "AHT20.h"
void Delay_N10us(uint32_t t)//<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
{
uint32_t k;
while(t--)
{
for (k = 0; k < 2; k++);//110
}
}
void SensorDelay_us(uint32_t t)//<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
{
for(t = t-2; t>0; t--)
{
Delay_N10us(1);
}
}
void Delay_4us(void) //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
{
Delay_N10us(1);
Delay_N10us(1);
Delay_N10us(1);
Delay_N10us(1);
}
void Delay_5us(void) //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
{
Delay_N10us(1);
Delay_N10us(1);
Delay_N10us(1);
Delay_N10us(1);
Delay_N10us(1);
}
void Delay_1ms(uint32_t t) //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
{
while(t--)
{
SensorDelay_us(1000);//////<2F><>ʱ1ms
}
}
void AHT20_Clock_Init(void) //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
}
void SDA_Pin_Output_High(void) //<2F><>PB15<31><35><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ߵ<EFBFBD>ƽ<EFBFBD><C6BD> PB15<31><35>ΪI2C<32><43>SDA
{
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_OD;//<2F><>©<EFBFBD><C2A9><EFBFBD><EFBFBD>
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB,& GPIO_InitStruct);
GPIO_SetBits(GPIOB,GPIO_Pin_1);
}
void SDA_Pin_Output_Low(void) //<2F><>P15<31><35><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>͵<EFBFBD>ƽ
{
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_OD;//<2F><>©<EFBFBD><C2A9><EFBFBD><EFBFBD>
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB,& GPIO_InitStruct);
GPIO_ResetBits(GPIOB,GPIO_Pin_1);
}
void SDA_Pin_IN_FLOATING(void) //SDA<44><41><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING;//
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init( GPIOB,&GPIO_InitStruct);
}
void SCL_Pin_Output_High(void) //SCL<43><4C><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD>ƽ<EFBFBD><C6BD>P14<31><34>ΪI2C<32><43>SCL
{
GPIO_SetBits(GPIOB,GPIO_Pin_0);
}
void SCL_Pin_Output_Low(void) //SCL<43><4C><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ƽ
{
GPIO_ResetBits(GPIOB,GPIO_Pin_0);
}
void Init_I2C_Sensor_Port(void) //<2F><>ʼ<EFBFBD><CABC>I2C<32>ӿ<EFBFBD>,<2C><><EFBFBD><EFBFBD>Ϊ<EFBFBD>ߵ<EFBFBD>ƽ
{
GPIO_InitTypeDef GPIO_InitStruct;
AHT20_Clock_Init();
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_OD;//<2F><>©<EFBFBD><C2A9><EFBFBD><EFBFBD>
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB,&GPIO_InitStruct);
GPIO_SetBits(GPIOB,GPIO_Pin_1);//<2F><><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD>ƽ
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_OD;//<2F><>©<EFBFBD><C2A9><EFBFBD><EFBFBD>
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB,&GPIO_InitStruct);
GPIO_SetBits(GPIOB,GPIO_Pin_0);//<2F><><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD>ƽ
}
void I2C_Start(void) //I2C<32><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>START<52>ź<EFBFBD>
{
SDA_Pin_Output_High();
SensorDelay_us(8);
SCL_Pin_Output_High();
SensorDelay_us(8);
SDA_Pin_Output_Low();
SensorDelay_us(8);
SCL_Pin_Output_Low();
SensorDelay_us(8);
}
void AHT20_WR_Byte(uint8_t Byte) //<2F><>AHT20дһ<D0B4><D2BB><EFBFBD>ֽ<EFBFBD>
{
uint8_t Data,N,i;
Data=Byte;
i = 0x80;
for(N=0;N<8;N++)
{
SCL_Pin_Output_Low();
Delay_4us();
if(i&Data)
{
SDA_Pin_Output_High();
}
else
{
SDA_Pin_Output_Low();
}
SCL_Pin_Output_High();
Delay_4us();
Data <<= 1;
}
SCL_Pin_Output_Low();
SensorDelay_us(8);
SDA_Pin_IN_FLOATING();
SensorDelay_us(8);
}
uint8_t AHT20_RD_Byte(void)//<2F><>AHT20<32><30>ȡһ<C8A1><D2BB><EFBFBD>ֽ<EFBFBD>
{
uint8_t Byte,i,a;
Byte = 0;
SCL_Pin_Output_Low();
SDA_Pin_IN_FLOATING();
SensorDelay_us(8);
for(i=0;i<8;i++)
{
SCL_Pin_Output_High();
Delay_5us();
a=0;
if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1)) a=1;
Byte = (Byte<<1)|a;
SCL_Pin_Output_Low();
Delay_5us();
}
SDA_Pin_IN_FLOATING();
SensorDelay_us(8);
return Byte;
}
uint8_t Receive_ACK(void) //<2F><>AHT20<32>Ƿ<EFBFBD><C7B7>лظ<D0BB>ACK
{
uint16_t CNT;
CNT = 0;
SCL_Pin_Output_Low();
SDA_Pin_IN_FLOATING();
SensorDelay_us(8);
SCL_Pin_Output_High();
SensorDelay_us(8);
while((GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1)) && CNT < 100)
CNT++;
if(CNT == 100)
{
return 0;
}
SCL_Pin_Output_Low();
SensorDelay_us(8);
return 1;
}
void Send_ACK(void) //<2F><><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>ACK<43>ź<EFBFBD>
{
SCL_Pin_Output_Low();
SensorDelay_us(8);
SDA_Pin_Output_Low();
SensorDelay_us(8);
SCL_Pin_Output_High();
SensorDelay_us(8);
SCL_Pin_Output_Low();
SensorDelay_us(8);
SDA_Pin_IN_FLOATING();
SensorDelay_us(8);
}
void Send_NOT_ACK(void) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>ACK
{
SCL_Pin_Output_Low();
SensorDelay_us(8);
SDA_Pin_Output_High();
SensorDelay_us(8);
SCL_Pin_Output_High();
SensorDelay_us(8);
SCL_Pin_Output_Low();
SensorDelay_us(8);
SDA_Pin_Output_Low();
SensorDelay_us(8);
}
void Stop_I2C(void) //һ<><D2BB>Э<EFBFBD><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
SDA_Pin_Output_Low();
SensorDelay_us(8);
SCL_Pin_Output_High();
SensorDelay_us(8);
SDA_Pin_Output_High();
SensorDelay_us(8);
}
uint8_t AHT20_Read_Status(void)//<2F><>ȡAHT20<32><30>״̬<D7B4>Ĵ<EFBFBD><C4B4><EFBFBD>
{
uint8_t Byte_first;
I2C_Start();
AHT20_WR_Byte(0x71);
Receive_ACK();
Byte_first = AHT20_RD_Byte();
Send_NOT_ACK();
Stop_I2C();
return Byte_first;
}
void AHT20_SendAC(void) //<2F><>AHT20<32><30><EFBFBD><EFBFBD>AC<41><43><EFBFBD><EFBFBD>
{
I2C_Start();
AHT20_WR_Byte(0x70);
Receive_ACK();
AHT20_WR_Byte(0xac);//0xAC<41>ɼ<EFBFBD><C9BC><EFBFBD><EFBFBD><EFBFBD>
Receive_ACK();
AHT20_WR_Byte(0x33);
Receive_ACK();
AHT20_WR_Byte(0x00);
Receive_ACK();
Stop_I2C();
}
//CRCУ<43><D0A3><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>CRC8/MAXIM
//<2F><><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>X8+X5+X4+1
//Poly<6C><79>0011 0001 0x31
//<2F><>λ<EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD> 1000 1100 0x8c
//C<><43>ʵ<EFBFBD><CAB5><EFBFBD>룺
uint8_t Calc_CRC8(uint8_t *message,uint8_t Num)
{
uint8_t i;
uint8_t byte;
uint8_t crc=0xFF;
for(byte=0; byte<Num; byte++)
{
crc^=(message[byte]);
for(i=8;i>0;--i)
{
if(crc&0x80) crc=(crc<<1)^0x31;
else crc=(crc<<1);
}
}
return crc;
}
void AHT20_Read_CTdata(uint32_t *ct) //û<><C3BB>CRCУ<43>飬ֱ<E9A3AC>Ӷ<EFBFBD>ȡAHT20<32><30><EFBFBD>¶Ⱥ<C2B6>ʪ<EFBFBD><CAAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
volatile uint8_t Byte_1th=0;
volatile uint8_t Byte_2th=0;
volatile uint8_t Byte_3th=0;
volatile uint8_t Byte_4th=0;
volatile uint8_t Byte_5th=0;
volatile uint8_t Byte_6th=0;
uint32_t RetuData = 0;
uint16_t cnt = 0;
AHT20_SendAC();//<2F><>AHT20<32><30><EFBFBD><EFBFBD>AC<41><43><EFBFBD><EFBFBD>
Delay_1ms(80);//<2F><>ʱ80ms<6D><73><EFBFBD><EFBFBD>
cnt = 0;
while(((AHT20_Read_Status()&0x80)==0x80))//ֱ<><D6B1>״̬bit[7]Ϊ0<CEAA><30><EFBFBD><EFBFBD>ʾΪ<CABE><CEAA><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>Ϊ1<CEAA><31><EFBFBD><EFBFBD>ʾæ״̬
{
SensorDelay_us(1508);
if(cnt++>=100)
{
break;
}
}
I2C_Start();
AHT20_WR_Byte(0x71);
Receive_ACK();
Byte_1th = AHT20_RD_Byte();//״̬<D7B4>֣<EFBFBD><D6A3><EFBFBD>ѯ<EFBFBD><D1AF>״̬Ϊ0x98,<2C><>ʾΪæ״̬<D7B4><CCAC>bit[7]Ϊ1<CEAA><31>״̬Ϊ0x1C<31><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0x0C<30><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0x08<30><38>ʾΪ<CABE><CEAA><EFBFBD><EFBFBD>״̬<D7B4><CCAC>bit[7]Ϊ0
Send_ACK();
Byte_2th = AHT20_RD_Byte();//ʪ<><CAAA>
Send_ACK();
Byte_3th = AHT20_RD_Byte();//ʪ<><CAAA>
Send_ACK();
Byte_4th = AHT20_RD_Byte();//ʪ<><CAAA>/<2F><EFBFBD>
Send_ACK();
Byte_5th = AHT20_RD_Byte();//<2F><EFBFBD>
Send_ACK();
Byte_6th = AHT20_RD_Byte();//<2F><EFBFBD>
Send_NOT_ACK();
Stop_I2C();
RetuData = (RetuData|Byte_2th)<<8;
RetuData = (RetuData|Byte_3th)<<8;
RetuData = (RetuData|Byte_4th);
RetuData =RetuData >>4;
ct[0] = RetuData;//ʪ<><CAAA>
RetuData = 0;
RetuData = (RetuData|Byte_4th)<<8;
RetuData = (RetuData|Byte_5th)<<8;
RetuData = (RetuData|Byte_6th);
RetuData = RetuData&0xfffff;
ct[1] =RetuData; //<2F><EFBFBD>
}
void AHT20_Read_CTdata_crc(uint32_t *ct) //CRCУ<43><D0A3><EFBFBD>󣬶<EFBFBD>ȡAHT20<32><30><EFBFBD>¶Ⱥ<C2B6>ʪ<EFBFBD><CAAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
volatile uint8_t Byte_1th=0;
volatile uint8_t Byte_2th=0;
volatile uint8_t Byte_3th=0;
volatile uint8_t Byte_4th=0;
volatile uint8_t Byte_5th=0;
volatile uint8_t Byte_6th=0;
volatile uint8_t Byte_7th=0;
uint32_t RetuData = 0;
uint16_t cnt = 0;
// uint8_t CRCDATA=0;
uint8_t CTDATA[6]={0};//<2F><><EFBFBD><EFBFBD>CRC<52><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
AHT20_SendAC();//<2F><>AHT20<32><30><EFBFBD><EFBFBD>AC<41><43><EFBFBD><EFBFBD>
Delay_1ms(80);//<2F><>ʱ80ms<6D><73><EFBFBD><EFBFBD>
cnt = 0;
while(((AHT20_Read_Status()&0x80)==0x80))//ֱ<><D6B1>״̬bit[7]Ϊ0<CEAA><30><EFBFBD><EFBFBD>ʾΪ<CABE><CEAA><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>Ϊ1<CEAA><31><EFBFBD><EFBFBD>ʾæ״̬
{
SensorDelay_us(1508);
if(cnt++>=100)
{
break;
}
}
I2C_Start();
AHT20_WR_Byte(0x71);
Receive_ACK();
CTDATA[0]=Byte_1th = AHT20_RD_Byte();//״̬<D7B4>֣<EFBFBD><D6A3><EFBFBD>ѯ<EFBFBD><D1AF>״̬Ϊ0x98,<2C><>ʾΪæ״̬<D7B4><CCAC>bit[7]Ϊ1<CEAA><31>״̬Ϊ0x1C<31><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0x0C<30><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0x08<30><38>ʾΪ<CABE><CEAA><EFBFBD><EFBFBD>״̬<D7B4><CCAC>bit[7]Ϊ0
Send_ACK();
CTDATA[1]=Byte_2th = AHT20_RD_Byte();//ʪ<><CAAA>
Send_ACK();
CTDATA[2]=Byte_3th = AHT20_RD_Byte();//ʪ<><CAAA>
Send_ACK();
CTDATA[3]=Byte_4th = AHT20_RD_Byte();//ʪ<><CAAA>/<2F><EFBFBD>
Send_ACK();
CTDATA[4]=Byte_5th = AHT20_RD_Byte();//<2F><EFBFBD>
Send_ACK();
CTDATA[5]=Byte_6th = AHT20_RD_Byte();//<2F><EFBFBD>
Send_ACK();
Byte_7th = AHT20_RD_Byte();//CRC<52><43><EFBFBD><EFBFBD>
Send_NOT_ACK(); //ע<><D7A2>: <20><><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>NAK
Stop_I2C();
if(Calc_CRC8(CTDATA,6)==Byte_7th)
{
RetuData = (RetuData|Byte_2th)<<8;
RetuData = (RetuData|Byte_3th)<<8;
RetuData = (RetuData|Byte_4th);
RetuData =RetuData >>4;
ct[0] = RetuData;//ʪ<><CAAA>
RetuData = 0;
RetuData = (RetuData|Byte_4th)<<8;
RetuData = (RetuData|Byte_5th)<<8;
RetuData = (RetuData|Byte_6th);
RetuData = RetuData&0xfffff;
ct[1] =RetuData; //<2F><EFBFBD>
}
else
{
ct[0]=0x00;
ct[1]=0x00;//У<><D0A3><EFBFBD><EFBFBD><EFBFBD>󷵻<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD>Ը<EFBFBD><D4B8><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>
}//CRC<52><43><EFBFBD><EFBFBD>
}
void JH_Reset_REG(uint8_t addr)
{
uint8_t Byte_first,Byte_second,Byte_third,Byte_fourth;
I2C_Start();
AHT20_WR_Byte(0x70);//ԭ<><D4AD><EFBFBD><EFBFBD>0x70
Receive_ACK();
AHT20_WR_Byte(addr);
Receive_ACK();
AHT20_WR_Byte(0x00);
Receive_ACK();
AHT20_WR_Byte(0x00);
Receive_ACK();
Stop_I2C();
Delay_1ms(5);//<2F><>ʱ5ms<6D><73><EFBFBD><EFBFBD>
I2C_Start();
AHT20_WR_Byte(0x71);//
Receive_ACK();
Byte_first = AHT20_RD_Byte();
Send_ACK();
Byte_second = AHT20_RD_Byte();
Send_ACK();
Byte_third = AHT20_RD_Byte();
Send_NOT_ACK();
Stop_I2C();
Delay_1ms(10);//<2F><>ʱ10ms<6D><73><EFBFBD><EFBFBD>
I2C_Start();
AHT20_WR_Byte(0x70);///
Receive_ACK();
AHT20_WR_Byte(0xB0|addr);////<2F>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Receive_ACK();
AHT20_WR_Byte(Byte_second);
Receive_ACK();
AHT20_WR_Byte(Byte_third);
Receive_ACK();
Stop_I2C();
Byte_second=0x00;
Byte_third =0x00;
}
void AHT20_Start_Init(void)
{
JH_Reset_REG(0x1b);
JH_Reset_REG(0x1c);
JH_Reset_REG(0x1e);
}
//int32_t main(void)
//{
// uint32_t CT_data[2];
// volatile int c1,t1;
// /***********************************************************************************/
// /**///<2F>ϵ<EFBFBD><CFB5><EFBFBD>ʼ<EFBFBD><CABC>SDA<44><41>SCL<43><4C>IO<49><4F>
// /***********************************************************************************/
// Init_I2C_Sensor_Port();
// /***********************************************************************************/
// /**///<2F>ٸ<EFBFBD><D9B8>ϵ磬<CFB5><E7A3AC>ƷоƬ<D0BE>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʱ<D2AA>䣬<EFBFBD><E4A3AC>ʱ100~500ms,<2C><><EFBFBD><EFBFBD>500ms
// /***********************************************************************************/
// Delay_1ms(500);
// /***********************************************************************************/
// /**///<2F><><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD>һ<EFBFBD>η<EFBFBD>0x71<37><31>ȡ״̬<D7B4>֣<EFBFBD><D6A3>ж<EFBFBD>״̬<D7B4><CCAC><EFBFBD>Ƿ<EFBFBD>Ϊ0x18,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0x18,<2C><><EFBFBD>мĴ<D0BC><C4B4><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>
// /***********************************************************************************/
// if((AHT20_Read_Status()&0x18)!=0x18)
// {
// AHT20_Start_Init(); //<2F><><EFBFBD>³<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>
// Delay_1ms(10);
// }
//
// /***********************************************************************************/
// /**///<2F>۸<EFBFBD><DBB8>ݿͻ<DDBF><CDBB>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>󷢲<EFBFBD><F3B7A2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>ʪ<EFBFBD><CAAA><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD>ǰwhile<6C><65>1<EFBFBD><31>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>ʪ<EFBFBD><CAAA><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ο<EFBFBD>
// /***********************************************************************************/
// while(1)
// {
// AHT20_Read_CTdata(CT_data); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>CRCУ<43>飬ֱ<E9A3AC>Ӷ<EFBFBD>ȡAHT20<32><30><EFBFBD>¶Ⱥ<C2B6>ʪ<EFBFBD><CAAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>Ƽ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1S<31><53>һ<EFBFBD><D2BB>
// //AHT20_Read_CTdata_crc(CT_data); //crcУ<63><D0A3><EFBFBD>󣬶<EFBFBD>ȡAHT20<32><30><EFBFBD>¶Ⱥ<C2B6>ʪ<EFBFBD><CAAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//
// c1 = CT_data[0]*100*10/1024/1024; //<2F><><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ʪ<EFBFBD><CAAA>ֵc1<63><31><EFBFBD>Ŵ<EFBFBD><C5B4><EFBFBD>10<31><30><EFBFBD><EFBFBD>
// t1 = CT_data[1]*200*10/1024/1024-500;//<2F><><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD>ֵt1<74><31><EFBFBD>Ŵ<EFBFBD><C5B4><EFBFBD>10<31><30><EFBFBD><EFBFBD>
// ////<2F><>һ<EFBFBD><D2BB><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD>ݣ<EFBFBD>
// /***********************************************************************************/
// /**///<2F><>ʱ1.5s<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1.5s<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>
// /***********************************************************************************/
// delay_ms(1500);
// }
// }
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