设为首页收藏本站
开启辅助访问 切换到宽版

 找回密码
 立即注册

QQ登录

只需一步，快速开始

热门： 51单片机 | 24小时必答区 | 单片机教程 | 单片机DIY制作 | STM32 | Cortex M3 | 模数电子 | 电子DIY制作 | 音响/功放 | 拆机乐园 | Arduino | 嵌入式OS | 程序设计

搜索
»论坛 › 电子技术分类讨论区 › 资料共享 › bmp085气压传感器与STM32F031的I2C代码调试结果
返回列表 发新帖
查看: 1723|回复: 0
打印 上一主题 下一主题
收起左侧

bmp085气压传感器与STM32F031的I2C代码调试结果

[复制链接]
跳转到指定楼层
楼主
ID:410324 发表于 2018-10-16 08:41 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
  1. /* Includes ------------------------------------------------------------------*/
  2. #include "bmp085.h"

  4. /* Private typedef -----------------------------------------------------------*/
  5. /* Private define ------------------------------------------------------------*/
  6. /* Private macro -------------------------------------------------------------*/
  7. /* Private variables ---------------------------------------------------------*/
  8. //uint8_t oss;
  9. int16_t ac1, ac2, ac3, b1, b2, mb, mc, md;
  10. uint16_t ac4, ac5, ac6;
  11. int32_t ut, up, BMP085_Temperature, BMP085_Pressure;
  12. BMP085_OSS_TypeDef oss;

  14. /* Private function prototypes -----------------------------------------------*/
  15. /* Private functions ---------------------------------------------------------*/
  16. /**
  17.   * @brief  BMP085¶á¼ÆËãÏμêyoˉêy￡¬òÔ±ã½øDD¼ÆËãÕæÕyμÄζèoíÑ1Ç¿
  18.   * @param  ÎT
  19.   * @retval ÎT
  20.   */
  21. void BMP085_Read_Calibration_Data(void)
  22. {
  23.   uint8_t BMP085_Calibration_Data_Buffer[BMP085_CAL_COE_NUMBER];

  25.   if(I2C1_Read_NBytes(BMP085_ADDR, BMP085_CAL_COE_STA_ADDR, BMP085_CAL_COE_NUMBER, BMP085_Calibration_Data_Buffer) == I2C_FAIL)
  26.   {
  27.     BMP085_TIMEOUT_UserCallback();
  28.   }

  30.   ac1 = (((int16_t)BMP085_Calibration_Data_Buffer[0]) << 8) + BMP085_Calibration_Data_Buffer[1];
  31.   ac2 = (((int16_t)BMP085_Calibration_Data_Buffer[2]) << 8) + BMP085_Calibration_Data_Buffer[3];
  32.   ac3 = (((int16_t)BMP085_Calibration_Data_Buffer[4]) << 8) + BMP085_Calibration_Data_Buffer[5];
  33.   ac4 = (((uint16_t)BMP085_Calibration_Data_Buffer[6]) << 8) + BMP085_Calibration_Data_Buffer[7];
  34.   ac5 = (((uint16_t)BMP085_Calibration_Data_Buffer[8]) << 8) + BMP085_Calibration_Data_Buffer[9];
  35.   ac6 = (((uint16_t)BMP085_Calibration_Data_Buffer[10]) << 8) + BMP085_Calibration_Data_Buffer[11];
  36.   b1 = (((int16_t)BMP085_Calibration_Data_Buffer[12]) << 8) + BMP085_Calibration_Data_Buffer[13];
  37.   b2 = (((int16_t)BMP085_Calibration_Data_Buffer[14]) << 8) + BMP085_Calibration_Data_Buffer[15];
  38.   mb = (((int16_t)BMP085_Calibration_Data_Buffer[16]) << 8) + BMP085_Calibration_Data_Buffer[17];
  39.   mc = (((int16_t)BMP085_Calibration_Data_Buffer[18]) << 8) + BMP085_Calibration_Data_Buffer[19];
  40.   md = (((int16_t)BMP085_Calibration_Data_Buffer[20]) << 8) + BMP085_Calibration_Data_Buffer[21];
  41. }

  43. /**
  44.   * @brief  éèÖÃ2éÑùÄ￡ê½oˉêy
  45.   * @param  oss_ValueéèÖÃμÄ2éÑùÄ￡ê½
  46.   * @retval ÎT
  47.   */
  48. void BMP085_Set_OSS(BMP085_OSS_TypeDef oss_Value)
  49. {
  50.   oss = oss_Value;
  51. }

  53. /**
  54.   * @brief  BMP0853õê¼»ˉoˉêy￡¬°ü਼ÆËãÏμêyoí2éÑùÄ￡ê½
  55.   * @param  oss_ValueéèÖÃμÄ2éÑùÄ￡ê½
  56.   * @retval ÎT
  57.   */
  58. void BMP085_Init(BMP085_OSS_TypeDef oss_Value)
  59. {
  60.   BMP085_Read_Calibration_Data();
  61.   BMP085_Set_OSS(oss_Value);
  62. }

  64. /**
  65.   * @brief  BMP085¶áÎ′D￡ÕyμÄζèÖμ
  66.   * @param  ÎT
  67.   * @retval ÎT
  68.   */
  69. void BMP085_Read_UnComPensated_Temperature(void)
  70. {
  71.   uint8_t BMP085_Temperature_Data_Buffer[BMP085_TEMPERATURE_NUMBER];

  73.   uint8_t BMP085_Cmd = BMP085_TEMPERATURE_CMD;

  75.   if(I2C1_Write_NBytes(BMP085_ADDR, BMP085_CMD_ADDR, 1, &BMP085_Cmd) == I2C_FAIL)
  76.   {
  77.     BMP085_TIMEOUT_UserCallback();
  78.   }

  80.   Delay(BMP085_TEMPERATURE_DEL);

  82.   if(I2C1_Read_NBytes(BMP085_ADDR, BMP085_VALUE_MSB_ADDR, BMP085_TEMPERATURE_NUMBER, BMP085_Temperature_Data_Buffer) == I2C_FAIL)
  83.   {
  84.     BMP085_TIMEOUT_UserCallback();
  85.   }

  87.   ut = (((int32_t)BMP085_Temperature_Data_Buffer[0]) << 8) + BMP085_Temperature_Data_Buffer[1];
  88. }

  90. /**
  91.   * @brief  BMP085¶áÎ′D￡ÕyμÄÑ1Ç¿Öμ
  92.   * @param  ÎT
  93.   * @retval ÎT
  94.   */
  95. void BMP085_Read_Uncompensated_Pressure(void)
  96. {
  97.   uint8_t BMP085_Pressure_Data_Buffer[BMP085_PRESSURE_NUMBER];

  99.   uint8_t BMP085_Cmd = BMP085_PRESSURE_CMD + (oss << 6);

  101.   if(I2C1_Write_NBytes(BMP085_ADDR, BMP085_CMD_ADDR, 1, &BMP085_Cmd) == I2C_FAIL)
  102.   {
  103.     BMP085_TIMEOUT_UserCallback();
  104.   }

  106.   switch(oss)
  107.   {
  108.     case ULTRA_LOW_POWER:
  109.       Delay(BMP085_PRESSURE_ULP_DEL);
  110.       break;
  111.     case STANDARD:
  112.       Delay(BMP085_PRESSURE_STD_DEL);
  113.       break;
  114.     case HIGH_RESOLUTION:
  115.       Delay(BMP085_PRESSURE_HR_DEL);
  116.       break;
  117.     case ULTRA_HIGH_RESOLUTION:
  118.       Delay(BMP085_PRESSURE_UHR_DEL);
  119.       break;
  120.   }

  122.   if(I2C1_Read_NBytes(BMP085_ADDR, BMP085_VALUE_MSB_ADDR, BMP085_PRESSURE_NUMBER, BMP085_Pressure_Data_Buffer) == I2C_FAIL)
  123.   {
  124.     BMP085_TIMEOUT_UserCallback();
  125.   }

  127.   up = ((((int32_t)BMP085_Pressure_Data_Buffer[0]) << 16) + (((int32_t)BMP085_Pressure_Data_Buffer[1]) << 8) + BMP085_Pressure_Data_Buffer[2]) >> (8 - oss);
  128. }

  130. /**
  131.   * @brief  ¼ÆËãÕæÕyμÄζèÑ1Ç¿Öμ
  132.   * @param  ÎT
  133.   * @retval ÎT
  134.   */
  135. void BMP085_Calculate_Temp_Pres(void)
  136. {
  137.   int32_t x1, x2, x3, b3, b5, b6, b7;
  138.   uint32_t b4;

  140.   x1 = (ut - ac6) * ac5 / 32768;
  141.   x2 = mc * 2048 / (x1 + md);
  142.   b5 = x1 + x2;
  143.   BMP085_Temperature = (b5 + 8) / 16;

  145.   b6 = b5 - 4000;
  146.   x1 = (b2 * (b6 * b6 / 4096)) / 2048;
  147.   x2 = ac2 * b6 / 2048;
  148.   x3 = x1 + x2;
  149.   b3 = (((ac1 * 4 + x3) << oss) + 2) / 4;
  150.   x1 = ac3 * b6 / 8192;
  151.   x2 = (b1 * (b6 * b6 / 4096)) / 65536;
  152.   x3 = ((x1 + x2) + 2) / 4;
  153.   b4 = ac4 * (uint32_t)(x3 + 32768) / 32768;
  154.   b7 = ((uint32_t)up - b3) * (50000 >> oss);
  155.   if(b7 < 0x80000000)
  156.   {
  157.     BMP085_Pressure = (b7 * 2) / b4;
  158.   }
  159.   else
  160.   {
  161.     BMP085_Pressure = (b7 / b4) * 2;
  162.   }
  163.   x1 = (BMP085_Pressure / 256) * (BMP085_Pressure / 256);
  164.   x1 = (x1 * 3038) / 65536;
  165.   x2 = ( -7357 * BMP085_Pressure) / 65536;
  166.   BMP085_Pressure = BMP085_Pressure + (x1 + x2 + 3791) / 16;
  167. }

  169. /**
  170.   * @brief  BMP085μÄI2C2ù×÷3¬ê±oˉêy￡¬′Ë′|Î′¶¨òåÄúèY
  171.   * @param  ÎT
  172.   * @retval ÎT
  173.   */
  174. void BMP085_TIMEOUT_UserCallback(void)
  175. {
  176.   while (1)
  177.   {   
  178.   }
  179. }

  181. /* Define to prevent recursive inclusion -------------------------------------*/
  182. #ifndef __BMP085_H
  183. #define __BMP085_H

  185. /* Includes ------------------------------------------------------------------*/
  186. #include "i2c1.h"
  187. #include "main.h"

  189. /* Exported types ------------------------------------------------------------*/
  190. /*BMP085¼ì2aÆøÑ1Ä￡ê½*/
  191. typedef enum
  192. {
  193.   ULTRA_LOW_POWER                                 = 0,
  194.   STANDARD                                        = 1,
  195.   HIGH_RESOLUTION                                 = 2,
  196.   ULTRA_HIGH_RESOLUTION                           = 3

  198. }BMP085_OSS_TypeDef;

  200. /* Exported constants --------------------------------------------------------*/
  201. /*BMP085Æ÷¼tμØÖ·*/
  202. #define BMP085_ADDR                               0xEE

  204. /*BMP085¼ÆËãÏμêy′æ·ÅμØÖ·Æeê¼*/
  205. #define BMP085_CAL_COE_STA_ADDR                   0xAA
  206. /*BMP085¼ÆËãÏμêy×Ö½úêy*/
  207. #define BMP085_CAL_COE_NUMBER                     22

  209. /*BMP085μÄÃüáî¼Ä′æÆ÷μØÖ·*/
  210. #define BMP085_CMD_ADDR                          0xF4

  212. /*BMP085μļì2aζèÃüáî*/
  213. #define BMP085_TEMPERATURE_CMD                   0x2E

  215. /*BMP085μļì2aÆøÑ1Ãüáî*/
  216. #define BMP085_PRESSURE_CMD                      0x34

  218. /*BMP085¼ì2aÖμ¼Ä′æÆ÷*/
  219. #define BMP085_VALUE_MSB_ADDR                    0xF6
  220. #define BMP085_VALUE_LSB_ADDR                    0xF7
  221. #define BMP085_VALUE_XLSB_ADDR                   0xF8

  223. /*BMP085ζèÖμ×Ö½ú3¤¶è*/
  224. #define BMP085_TEMPERATURE_NUMBER                 2

  226. /*BMP085ÆøÑ1Öμ×Ö½ú3¤¶è*/
  227. #define BMP085_PRESSURE_NUMBER                    3

  229. /*BMP085¼ì2aζèóÃê±,μ￥λÎa0.1ms*/
  230. #define BMP085_TEMPERATURE_DEL                    45

  232. /*BMP0852»í¬¼ì2aÆøÑ1Ä￡ê½ÏÂóÃê±￡¬μ￥λÎa0.1ms*/
  233. #define BMP085_PRESSURE_ULP_DEL                   45
  234. #define BMP085_PRESSURE_STD_DEL                   75
  235. #define BMP085_PRESSURE_HR_DEL                    135
  236. #define BMP085_PRESSURE_UHR_DEL                   255

  238. /* Exported macro ------------------------------------------------------------*/
  239. /* Exported functions ------------------------------------------------------- */
  240. void BMP085_Read_Calibration_Data(void);
  241. void BMP085_Set_OSS(BMP085_OSS_TypeDef oss_Value);
  242. void BMP085_Init(BMP085_OSS_TypeDef oss_Value);
  243. void BMP085_Read_UnComPensated_Temperature(void);
  244. void BMP085_Read_Uncompensated_Pressure(void);
  245. void BMP085_Calculate_Temp_Pres(void);
  246. void BMP085_TIMEOUT_UserCallback(void);

  248. #endif
复制代码


分享到:  QQ好友和群QQ好友和群 QQ空间QQ空间 腾讯微博腾讯微博 腾讯朋友腾讯朋友
收藏收藏 分享淘帖 顶顶 踩踩
回复

使用道具 举报

返回列表 发新帖
高级模式
B Color Image Link Quote Code Smilies
您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

手机版|小黑屋|51黑电子论坛 |51黑电子论坛6群 QQ 管理员QQ:125739409;技术交流QQ群281945664

Powered by 单片机教程网

快速回复 返回顶部 返回列表