标题: 基于STM32的HDC1080传感器程序 [打印本页]
作者: 64639F    时间: 2021-12-14 12:29
标题: 基于STM32的HDC1080传感器程序
TI公司的传感器芯片 使用IIC通讯

单片机源程序如下:
  1. /*
  2. * HDC1080.c:

  4. */
  5. #include "hdc1080.h"
  6. #include <stdlib.h>
  7. #include <stdio.h>

  9. #define HDC1080_I2CADDR         0x40
  10. #define HDC1080_TEMPERATURE     0x00
  11. #define HDC1080_HUMIDITY        0x01
  12. #define HDC1080_CONFIG          0x02
  13. #define HDC1080_CONFIG_RST      (1 << 15)
  14. #define HDC1080_CONFIG_HEAT     (1 << 13)
  15. #define HDC1080_CONFIG_MODE     (1 << 12)
  16. #define HDC1080_CONFIG_BATT     (1 << 11)
  17. #define HDC1080_CONFIG_TRES_14  0
  18. #define HDC1080_CONFIG_TRES_11  (1 << 10)
  19. #define HDC1080_CONFIG_HRES_14  0
  20. #define HDC1080_CONFIG_HRES_11  (1 << 8)
  21. #define HDC1080_CONFIG_HRES_8   (1 << 9)

  23. #define HDC1080_SERIAL_ID_FIRST 0xFB
  24. #define HDC1080_SERIAL_ID_MID   0xFC
  25. #define HDC1080_SERIAL_ID_LAST  0xFD
  26. #define HDC1080_MANUFID         0xFE
  27. #define HDC1080_DEVICEID        0xFF

  29. bool HDC1080_Init(void)
  30. {
  31.     uint16_t data;
  32.     uint8_t buf[2];
  33.     uint16_t config = HDC1080_CONFIG_RST | HDC1080_CONFIG_MODE | HDC1080_CONFIG_TRES_14 | HDC1080_CONFIG_HRES_14;

  35.     //soft reset
  36.     IIC_WriteReg(HDC1080_I2CADDR, HDC1080_CONFIG, (config>>8)&0x00FF);
  37.     DELAY_MS(15);
  38.    
  39.     IIC_ReadData(HDC1080_I2CADDR, HDC1080_MANUFID, buf, 2);
  40.     data = (buf[0]<<8)+buf[1];
  41.     if(data!=0x5449)
  42.         return false;
  43.         
  44.     IIC_ReadData(HDC1080_I2CADDR, HDC1080_DEVICEID, buf, 2);
  45.     data = (buf[0]<<8)+buf[1];
  46.     if(data!=0x1050)
  47.         return false;
  48.         
  49.     Usart1_Send("HDC1080 initialize register finished.\r\n");
  50.     return true;
  51. }

  53. float HDC1080_Temperature(void)
  54. {
  55.     float data;
  56.     uint8_t buf[2];
  57.     IIC_ReadData(HDC1080_I2CADDR, HDC1080_TEMPERATURE, buf, 2);
  58.     data=(buf[0]<<8)+buf[1];
  59.    
  60.     data /= 65536;
  61.     data *= 165;
  62.     data -= 40;
  63.     return data;
  64. }

  66. float HDC1080_Humidity(void)
  67. {
  68.     float data;
  69.     uint8_t buf[2];
  70.     IIC_ReadData(HDC1080_I2CADDR, HDC1080_HUMIDITY, buf, 2);
  71.     data=(buf[0]<<8)+buf[1];
  72.    
  73.     data /= 65536;
  74.     data *= 100;
  75.     return data;
  76. }
复制代码

Keil代码下载:
HDC1080.7z (183.2 KB, 下载次数: 44)






欢迎光临 (http://www.51hei.com/bbs/) Powered by Discuz! X3.1