STM32

HAL写的F4定时器查询HTS211数据无法更新问题

2019-07-20 09:32发布

站内问答 / STM32/STM8
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本帖最后由 yxzy150 于 2018-2-7 00:17 编辑

不能实时更新数据 也不知道错误出在哪 求大神相助
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3条回答
yxzy150
2019-07-20 22:24
[mw_shl_code=c,true]#include "HTS221.h"
#include <math.h>
float T0_degC, T1_degC;        //&Icirc;&Acirc;&para;&Egrave;&ETH;&pound;×&frac14;
int16_t T0_out, T1_out;        //&ETH;&pound;×&frac14;&Icirc;&Acirc;&para;&Egrave;&Ouml;&micro;&Ecirc;&auml;&sup3;&ouml;
float H0_rh, H1_rh;        //&Ecirc;&ordf;&para;&Egrave;&ETH;&pound;×&frac14;
int16_t H0_T0_out, H1_T0_out;//&ETH;&pound;×&frac14;&Ecirc;&ordf;&para;&Egrave;&Ouml;&micro;&Ecirc;&auml;&sup3;&ouml;
void HTS221_Init()
{
        uint8_t order[2];
        //&Aring;&auml;&Ouml;&Atilde;&micro;&Iacute;&frac14;&para;±&eth;&frac12;&Oacute;&iquest;&Uacute;
        //1&iexcl;&cent;&acute;ò&iquest;&ordf;HTS221&pound;&not;&frac12;&laquoD&Ouml;&Atilde;1±í&Ecirc;&frac34;&iquest;&ordf;&AElig;&ocirc; 2&iexcl;&cent;&Ecirc;&auml;&sup3;&ouml;&Ecirc;&yacute;&frac34;&Yacute;&Euml;&Ugrave;&Acirc;&Ecirc;&Ntilde;&iexcl;
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W, HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,order,1,0xFFFF);
        order[0] |= 0x80;
       
        order[0] &= ~(HTS221_ODR_MASK);
  order[0] |= 1;//00&Ograve;&raquo;&acute;&Icirc;&ETH;&Ocirc;&pound;&not;01 1Hz&pound;&not;10 7Hz&pound;&not;11 12.5hz
       
        HAL_I2C_Mem_Write(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,order,1,0xFFFF);
}

/**
* @brief  Exit the shutdown mode for HTS221
* @retval HUM_TEMP_OK in case of success, an error code otherwise
*/
void HTS221_Power_On(void)
{
  uint8_t order;
  
  /* Read the register content */
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,&order,1,0xFFFF);
  
  /* Set the power down bit */
  order |= HTS221_MODE_ACTIVE;
  
  /* Write register */
        HAL_I2C_Mem_Write(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,&order,1,0xFFFF);
}

/**
* @brief  Enter the shutdown mode for HTS221
* @retval HUM_TEMP_OK in case of success, an error code otherwise
*/
void HTS221_Power_OFF(void)
{
  uint8_t order;
  
  /* Read the register content */
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,&order,1,0xFFFF);
  
  /* Reset the power down bit */
  order &= ~(HTS221_MODE_ACTIVE);
  
  /* Write register */
        HAL_I2C_Mem_Write(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,&order,1,0xFFFF);
}



/**
* @brief  HTS221 Calibration procedure
* @retval HUM_TEMP_OK in case of success, an error code otherwise
*/
void HTS221_Calibration(void)
{
  /* Temperature Calibration */
  /* Temperature in degree for calibration ( "/8" to obtain float) */
  uint16_t T0_degC_x8_L, T0_degC_x8_H, T1_degC_x8_L, T1_degC_x8_H;
  uint8_t H0_rh_x2, H1_rh_x2;
  uint8_t tempReg[2] = {0, 0};

  HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_T0_degC_x8, I2C_MEMADD_SIZE_8BIT,tempReg,1,0xFFFF);
  T0_degC_x8_L = (uint16_t)tempReg[0];
  
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_T1_T0_msb, I2C_MEMADD_SIZE_8BIT,tempReg,1,0xFFFF);
  
  T0_degC_x8_H = (uint16_t) (tempReg[0] & 0x03);
  T0_degC = ((float)((T0_degC_x8_H << 8) | (T0_degC_x8_L))) / 8;
  
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_T1_degC_x8, I2C_MEMADD_SIZE_8BIT,tempReg,1,0xFFFF);
  
  T1_degC_x8_L = (uint16_t)tempReg[0];
       
  HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_T1_T0_msb, I2C_MEMADD_SIZE_8BIT,tempReg,1,0xFFFF);

  T1_degC_x8_H = (uint16_t) (tempReg[0] & 0x0C);
  T1_degC_x8_H = T1_degC_x8_H >> 2;
  T1_degC = ((float)((T1_degC_x8_H << 8) | (T1_degC_x8_L))) / 8;
  
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,(HTS221_T0_OUT_Low_Half | HTS221_I2C_MULTIPLEBYTE_CMD), I2C_MEMADD_SIZE_8BIT,tempReg,2,0xFFFF);

  T0_out = ((((int16_t)tempReg[1]) << 8) + (int16_t)tempReg[0]);
  
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,(HTS221_T1_OUT_Low_Half | HTS221_I2C_MULTIPLEBYTE_CMD), I2C_MEMADD_SIZE_8BIT,tempReg,2,0xFFFF);

  T1_out = ((((int16_t)tempReg[1]) << 8) + (int16_t)tempReg[0]);
  
  /* Humidity Calibration */
  /* Humidity in degree for calibration ( "/2" to obtain float) */
  HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_H0_rH_x2, I2C_MEMADD_SIZE_8BIT,&H0_rh_x2,1,0xFFFF);
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_H1_rH_x2 , I2C_MEMADD_SIZE_8BIT,&H1_rh_x2,1,0xFFFF);
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,(HTS221_H0_T0_OUT_Low_Half | HTS221_I2C_MULTIPLEBYTE_CMD) , I2C_MEMADD_SIZE_8BIT,&tempReg[0],2,0xFFFF);


  H0_T0_out = ((((int16_t)tempReg[1]) << 8) + (int16_t)tempReg[0]);
  
  HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,(HTS221_H1_T0_OUT_Low_Half  | HTS221_I2C_MULTIPLEBYTE_CMD) , I2C_MEMADD_SIZE_8BIT,&tempReg[0],2,0xFFFF);

  H1_T0_out = ((((int16_t)tempReg[1]) << 8) + (int16_t)tempReg[0]);
  
  H0_rh = ((float)H0_rh_x2) / 2;
  H1_rh = ((float)H1_rh_x2) / 2;
  
}

void HTS221_ReadID(void)
{
        uint8_t tempReg;

        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_WHO_AM_I , I2C_MEMADD_SIZE_8BIT,&tempReg,1,0xFFFF);
}

/**
* @brief  Read HTS221 output register, and calculate the humidity
* @param  pfData the pointer to data output
* @retval HUM_TEMP_OK in case of success, an error code otherwise
*/
uint16_t HTS221_Get_Humidity(void)
{
        float* pfData;
  int16_t H_T_out, humidity_t;
  uint8_t tempReg[2] = {0, 0};
  uint8_t tmp = 0x00;
  float H_rh;
  
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);
  
  /* Output Data Rate selection */
  tmp &= (HTS221_ODR_MASK);
  
  if(tmp == 0x00)
  {
                HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG2, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);

    /* Serial Interface Mode selection */
    tmp &= ~(HTS221_ONE_SHOT_MASK);
    tmp |= HTS221_ONE_SHOT_START;
   
                HAL_I2C_Mem_Write(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG2, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);

   
    do
    {
                        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_STATUS_REG, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);
    }
    while(!(tmp & 0x02));
  }
  
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,(HTS221_HUMIDITY_OUT_L| HTS221_I2C_MULTIPLEBYTE_CMD), I2C_MEMADD_SIZE_8BIT,tempReg,2,0xFFFF);


  H_T_out = ((((int16_t)tempReg[1]) << 8) + (int16_t)tempReg[0]);
  
  H_rh = ( float )(((( H_T_out - H0_T0_out ) * ( H1_rh - H0_rh )) / ( H1_T0_out - H0_T0_out )) + H0_rh );
  
  // Truncate to specific number of decimal digits
  humidity_t = (uint16_t)(H_rh * pow(10, HUM_DECIMAL_DIGITS));
  *pfData = ((float)humidity_t) / pow(10, HUM_DECIMAL_DIGITS);
  
  // Prevent data going below 0% and above 100% due to linear interpolation
  if ( *pfData <   0.0f ) *pfData =   0.0f;
  if ( *pfData > 100.0f ) *pfData = 100.0f;
  
  return *pfData;
}

int16_t HTS221_Get_Temperature(void)
{
        int16_t pfData;
  int16_t T_out, temperature_t;
  uint8_t tempReg[2] = {0, 0};
  uint8_t tmp = 0x00;
  float T_degC;
  
        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG1, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);
  /* Output Data Rate selection */
  tmp &= (HTS221_ODR_MASK);
  
  if(tmp == 0x00)
  {
    HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG2, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);
    /* Serial Interface Mode selection */
    tmp &= ~(HTS221_ONE_SHOT_MASK);
    tmp |= HTS221_ONE_SHOT_START;
    HAL_I2C_Mem_Write(&hi2c1,HT_ADDR_W,HTS221_CTRL_REG2, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);
   
    do
    {
                        HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,HTS221_STATUS_REG, I2C_MEMADD_SIZE_8BIT,&tmp,1,0xFFFF);
    }
    while(!(tmp & 0x01));
  }
  HAL_I2C_Mem_Read(&hi2c1,HT_ADDR_W,(HTS221_TEMP_OUT_L | HTS221_I2C_MULTIPLEBYTE_CMD), I2C_MEMADD_SIZE_8BIT,tempReg,2,0xFFFF);
       
  T_out = ((((int16_t)tempReg[1]) << 8) + (int16_t)tempReg[0]);
  
  T_degC = ((float)(T_out - T0_out)) / (T1_out - T0_out) * (T1_degC - T0_degC) + T0_degC;
  
  temperature_t = (int16_t)(T_degC * pow(10, TEMP_DECIMAL_DIGITS));
  
  pfData = ((float)temperature_t) / pow(10, TEMP_DECIMAL_DIGITS);
  
  return pfData;
}
[/mw_shl_code]

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