stm32l1xx_opamp.c

ucos2.86在STM32L152DISCOVERY上的移植

  OPAMP->CSR |= OPAMP_Trimming;

}

/**
  * @brief  Configure the trimming value of OPAMPs in normal mode.
  * @param  OPAMP_Selection: the selected OPAMP. 
  *   This parameter can be one of the following values:
  *         @arg OPAMP_Selection_OPAMP1: OPAMP1 is selected to configure the trimming value.
  *         @arg OPAMP_Selection_OPAMP2: OPAMP2 is selected to configure the trimming value.
  *         @arg OPAMP_Selection_OPAMP3: OPAMP3 is selected to configure the trimming value.
  * @param  OPAMP_Input: the selected OPAMP input. 
  *   This parameter can be one of the following values:
  *         @arg OPAMP_Input_NMOS: NMOS input is selected to configure the trimming value.
  *         @arg OPAMP_Input_PMOS: PMOS input is selected to configure the trimming value.
  * @param  OPAMP_TrimValue: the trimming value. This parameter can be any value lower
  *         or equal to 0x0000001F. 
  * @retval None
  */
void OPAMP_OffsetTrimConfig(uint32_t OPAMP_Selection, uint32_t OPAMP_Input, uint32_t OPAMP_TrimValue)
{
  uint32_t tmpreg = 0;

  /* Check the parameter */
  assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
  assert_param(IS_OPAMP_INPUT(OPAMP_Input));
  assert_param(IS_OPAMP_TRIMMINGVALUE(OPAMP_TrimValue));

  /* Get the OPAMP_OTR value */
  tmpreg = OPAMP->OTR;

  if(OPAMP_Selection == OPAMP_Selection_OPAMP1)
  {
    /* Reset the OPAMP inputs selection */
    tmpreg &= (uint32_t)~(OPAMP_CSR_OPA1CAL_L | OPAMP_CSR_OPA1CAL_H);
    /* Select the OPAMP input */
    tmpreg |= OPAMP_Input;

    if(OPAMP_Input == OPAMP_Input_PMOS)
    {
      /* Reset the trimming value corresponding to OPAMP1 PMOS input */
      tmpreg &= (0xFFFFFFE0);
      /* Set the new trimming value corresponding to OPAMP1 PMOS input */
      tmpreg |= (OPAMP_TrimValue);
    }
    else
    {
      /* Reset the trimming value corresponding to OPAMP1 NMOS input */
      tmpreg &= (0xFFFFFC1F);
      /* Set the new trimming value corresponding to OPAMP1 NMOS input */
      tmpreg |= (OPAMP_TrimValue<<5);
    }
  }
  else if (OPAMP_Selection == OPAMP_Selection_OPAMP2)
  {
    /* Reset the OPAMP inputs selection */
    tmpreg &= (uint32_t)~(OPAMP_CSR_OPA2CAL_L | OPAMP_CSR_OPA2CAL_H);
    /* Select the OPAMP input */
    tmpreg |= (uint32_t)(OPAMP_Input<<8);

    if(OPAMP_Input == OPAMP_Input_PMOS)
    {
      /* Reset the trimming value corresponding to OPAMP2 PMOS input */
      tmpreg &= (0xFFFF83FF);
      /* Set the new trimming value corresponding to OPAMP2 PMOS input */
      tmpreg |= (OPAMP_TrimValue<<10);
    }
    else
    {
      /* Reset the trimming value corresponding to OPAMP2 NMOS input */
      tmpreg &= (0xFFF07FFF);
      /* Set the new trimming value corresponding to OPAMP2 NMOS input */
      tmpreg |= (OPAMP_TrimValue<<15);
    }
  }
  else
  {
    /* Reset the OPAMP inputs selection */
    tmpreg &= (uint32_t)~(OPAMP_CSR_OPA3CAL_L | OPAMP_CSR_OPA3CAL_H);
    /* Select the OPAMP input */
    tmpreg |= (uint32_t)(OPAMP_Input<<16);

    if(OPAMP_Input == OPAMP_Input_PMOS)
    {
      /* Reset the trimming value corresponding to OPAMP3 PMOS input */
      tmpreg &= (0xFE0FFFFF);
      /* Set the new trimming value corresponding to OPAMP3 PMOS input */
      tmpreg |= (OPAMP_TrimValue<<20);
    }
    else
    {
      /* Reset the trimming value corresponding to OPAMP3 NMOS input */
      tmpreg &= (0xC1FFFFFF);
      /* Set the new trimming value corresponding to OPAMP3 NMOS input */
      tmpreg |= (OPAMP_TrimValue<<25);
    }
  }

  /* Set the OPAMP_OTR register */
  OPAMP->OTR = tmpreg;
}

/**
  * @brief  Configure the trimming value of OPAMPs in low power mode.
  * @param  OPAMP_Selection: the selected OPAMP. 
  *   This parameter can be one of the following values:
  *         @arg OPAMP_Selection_OPAMP1: OPAMP1 is selected to configure the trimming value.
  *         @arg OPAMP_Selection_OPAMP2: OPAMP2 is selected to configure the trimming value.
  *         @arg OPAMP_Selection_OPAMP3: OPAMP3 is selected to configure the trimming value.
  * @param  OPAMP_Input: the selected OPAMP input. 
  *   This parameter can be one of the following values:
  *         @arg OPAMP_Input_NMOS: NMOS input is selected to configure the trimming value.
  *         @arg OPAMP_Input_PMOS: PMOS input is selected to configure the trimming value.
  * @param  OPAMP_TrimValue: the trimming value. 
  *    This parameter can be any value lower or equal to 0x0000001F. 
  * @retval None
  */
void OPAMP_OffsetTrimLowPowerConfig(uint32_t OPAMP_Selection, uint32_t OPAMP_Input, uint32_t OPAMP_TrimValue)
{
  uint32_t tmpreg = 0;

  /* Check the parameter */
  assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
  assert_param(IS_OPAMP_INPUT(OPAMP_Input));
  assert_param(IS_OPAMP_TRIMMINGVALUE(OPAMP_TrimValue));

  /* Get the OPAMP_LPOTR value */
  tmpreg = OPAMP->LPOTR;

  if(OPAMP_Selection == OPAMP_Selection_OPAMP1)
  {
    /* Reset the OPAMP inputs selection */
    tmpreg &= (uint32_t)~(OPAMP_CSR_OPA1CAL_L | OPAMP_CSR_OPA1CAL_H);
    /* Select the OPAMP input */
    tmpreg |= OPAMP_Input;

    if(OPAMP_Input == OPAMP_Input_PMOS)
    {
      /* Reset the trimming value corresponding to OPAMP1 PMOS input */
      tmpreg &= (0xFFFFFFE0);
      /* Set the new trimming value corresponding to OPAMP1 PMOS input */
      tmpreg |= (OPAMP_TrimValue);
    }
    else
    {
      /* Reset the trimming value corresponding to OPAMP1 NMOS input */
      tmpreg &= (0xFFFFFC1F);
      /* Set the new trimming value corresponding to OPAMP1 NMOS input */
      tmpreg |= (OPAMP_TrimValue<<5);
    }
  }
  else if (OPAMP_Selection == OPAMP_Selection_OPAMP2)
  {
    /* Reset the OPAMP inputs selection */
    tmpreg &= (uint32_t)~(OPAMP_CSR_OPA2CAL_L | OPAMP_CSR_OPA2CAL_H);
    /* Select the OPAMP input */
    tmpreg |= (uint32_t)(OPAMP_Input<<8);

    if(OPAMP_Input == OPAMP_Input_PMOS)
    {
      /* Reset the trimming value corresponding to OPAMP2 PMOS input */
      tmpreg &= (0xFFFF83FF);
      /* Set the new trimming value corresponding to OPAMP2 PMOS input */
      tmpreg |= (OPAMP_TrimValue<<10);
    }
    else
    {
      /* Reset the trimming value corresponding to OPAMP2 NMOS input */
      tmpreg &= (0xFFF07FFF);
      /* Set the new trimming value corresponding to OPAMP2 NMOS input */
      tmpreg |= (OPAMP_TrimValue<<15);
    }
  }
  else
  {
    /* Reset the OPAMP inputs selection */
    tmpreg &= (uint32_t)~(OPAMP_CSR_OPA3CAL_L | OPAMP_CSR_OPA3CAL_H);
    /* Select the OPAMP input */
    tmpreg |= (uint32_t)(OPAMP_Input<<16);

    if(OPAMP_Input == OPAMP_Input_PMOS)
    {
      /* Reset the trimming value corresponding to OPAMP3 PMOS input */
      tmpreg &= (0xFE0FFFFF);
      /* Set the new trimming value corresponding to OPAMP3 PMOS input */
      tmpreg |= (OPAMP_TrimValue<<20);
    }
    else
    {
      /* Reset the trimming value corresponding to OPAMP3 NMOS input */
      tmpreg &= (0xC1FFFFFF);
      /* Set the new trimming value corresponding to OPAMP3 NMOS input */
      tmpreg |= (OPAMP_TrimValue<<25);
    }
  }

  /* Set the OPAMP_LPOTR register */
  OPAMP->LPOTR = tmpreg;
}

/**
  * @brief  Checks whether the specified OPAMP calibration flag is set or not.
  * @note   User should wait until calibration flag change the value when changing
  *         the trimming value.
  * @param  OPAMP_Selection: the selected OPAMP. 
  *   This parameter can be one of the following values:
  *     @arg OPAMP_Selection_OPAMP1: OPAMP1 is selected.
  *     @arg OPAMP_Selection_OPAMP2: OPAMP2 is selected.
  *     @arg OPAMP_Selection_OPAMP3: OPAMP3 is selected.
  * @retval The new state of the OPAMP calibration flag (SET or RESET).
  */
FlagStatus OPAMP_GetFlagStatus(uint32_t OPAMP_Selection)
{
  FlagStatus bitstatus = RESET;
  uint32_t tmpreg = 0;

  /* Check the parameter */
  assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
  
  /* Get the CSR register value */
  tmpreg = OPAMP->CSR;

  /* Check if OPAMP1 is selected */
  if(OPAMP_Selection == OPAMP_Selection_OPAMP1)
  {
    /* Check OPAMP1 CAL bit status */
    if ((tmpreg & OPAMP_CSR_OPA1CALOUT) != (uint32_t)RESET)
    {
      bitstatus = SET;
    }
    else
    {
      bitstatus = RESET;
    }
  }
  /* Check if OPAMP2 is selected */
  else if(OPAMP_Selection == OPAMP_Selection_OPAMP2)
  {
    /* Check OPAMP2 CAL bit status */
    if ((tmpreg & OPAMP_CSR_OPA2CALOUT) != (uint32_t)RESET)
    {
      bitstatus = SET;
    } 
    else
    {
      bitstatus = RESET;
    }
  }
  else
  {
    /* Check OPAMP3 CAL bit status */
    if ((tmpreg & OPAMP_CSR_OPA3CALOUT) != (uint32_t)RESET)
    {
      bitstatus = SET;
    }
    else
    {
      bitstatus = RESET;
    }
  }
  return bitstatus;
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/******************* (C) COPYRIGHT 2012 STMicroelectronics *****END OF FILE****/