STM32+SHT11测温湿度，输出显示0

STM32

STM32+SHT11测温湿度，输出显示0

2019-07-14 22:33发布

站内问答 / STM32/STM8

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STM32+SHT11测温湿度，输出显示0，SHT11在ARDUINO上测试正常，附上程序，求指点：
PC9接date，PC8接SCK；

#include "delay.h"
#include "timer.h"
#include "usart.h"
#include "sys.h"
#include "adc.h"
#include "sht10.h"
#include "lcd12864.h"
#include "usart2.h"
u8 t,TL,cnt=0;
u16 TH,Speed;;
u8 usart2buf[60];
u16 dis_temp = 0;
u16 dis_humi = 0;
u16 humi_val, temp_val;
u8 err = 0, checksum = 0;
float humi_val_real = 0.0;
float temp_val_real = 0.0;
u8 temp[2],humi[2];
int main(void)
{
delay_init();
LCD12864_InitPort();
LCD12864_Init();
NVIC_Configuration(); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
uart_init(9600); //串口初始化为9600
USART2_Init(9600); //串口2初始化为9600
SHT10_GPIO_Config();
Adc_Init();
LCD_ShowString(3,0,"环境污染检测系统");
USART2_Send_Data(r_dat1,6);
delay_ms(5000);
LCD12864_Clr();
TIM3_Int_Init(1,2880);//25000 hz的计数频率，0.08ms 1 2880
while(1)
{
err += SHT10_Measure(&temp_val, &checksum, TEMP); //获取温度测量值
err += SHT10_Measure(&humi_val, &checksum, HUMI); //获取湿度测量值
if(err != 0)
SHT10_ConReset();
else
{
SHT10_Calculate(temp_val, humi_val, &temp_val_real, &humi_val_real); //计算实际的温湿度值
dis_temp = (u16)(temp_val_real*100);
dis_humi = (u16)(humi_val_real*100);
}
LCD_ShowString(3,0,"Temp");
temp[0] = dis_temp/1000+48;
temp[1] = dis_temp%1000/100+48;
LCD12684_Wcmd(0x8a);
LCD12684_Wdat(':');
LCD12684_Wdat(temp[0]);
LCD12684_Wdat(temp[1]);
LCD_ShowString(3,4,"Humi");
humi[0] = dis_humi/1000+48;
humi[1] = dis_humi%1000/100+48;
LCD12684_Wcmd(0x8e);
LCD12684_Wdat(':');
LCD12684_Wdat(humi[0]);
LCD12684_Wdat(humi[1]);
USART2_Send_Data(r_dat,8);
delay_ms(1500);
USART2_Receive_Data(usart2buf,&cnt);
TH = usart2buf[3];
TL = usart2buf[4];
TH = (TH<<8)+TL;
for(t=0;t<cnt;t++)
{
USART_SendData(USART1, usart2buf[t]);//向串口1发送数据
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)!=SET);//等待发送结束
}
printf("温度:%2.2f℃,湿度:%2.2f%% ",temp_val_real,humi_val_real);
}
}