rt-thread/bsp/nuvoton_nuc472/Libraries/StdDriver/inc/adc.h

/**************************************************************************//**
 * @file     adc.h
 * @version  V1.00
 * $Revision: 23 $
 * $Date: 15/11/16 2:12p $
 * @brief    NUC472/NUC442 ADC driver header file
 *
 * @note
 * Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
 *****************************************************************************/
#ifndef __ADC_H__
#define __ADC_H__

#ifdef __cplusplus
extern "C"
{
#endif


/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
  @{
*/

/** @addtogroup NUC472_442_ADC_Driver ADC Driver
  @{
*/

/** @addtogroup NUC472_442_ADC_EXPORTED_CONSTANTS ADC Exported Constants
  @{
*/

#define ADC_CH_0_MASK                    (1UL << 0)                       /*!< ADC channel 0 mask  \hideinitializer */
#define ADC_CH_1_MASK                    (1UL << 1)                       /*!< ADC channel 1 mask  \hideinitializer */
#define ADC_CH_2_MASK                    (1UL << 2)                       /*!< ADC channel 2 mask  \hideinitializer */
#define ADC_CH_3_MASK                    (1UL << 3)                       /*!< ADC channel 3 mask  \hideinitializer */
#define ADC_CH_4_MASK                    (1UL << 4)                       /*!< ADC channel 4 mask  \hideinitializer */
#define ADC_CH_5_MASK                    (1UL << 5)                       /*!< ADC channel 5 mask  \hideinitializer */
#define ADC_CH_6_MASK                    (1UL << 6)                       /*!< ADC channel 6 mask  \hideinitializer */
#define ADC_CH_7_MASK                    (1UL << 7)                       /*!< ADC channel 7 mask  \hideinitializer */
#define ADC_CH_8_MASK                    (1UL << 8)                       /*!< ADC channel 8 mask  \hideinitializer */
#define ADC_CH_9_MASK                    (1UL << 9)                       /*!< ADC channel 9 mask  \hideinitializer */
#define ADC_CH_10_MASK                   (1UL << 10)                      /*!< ADC channel 10 mask  \hideinitializer */
#define ADC_CH_11_MASK                   (1UL << 11)                      /*!< ADC channel 11 mask  \hideinitializer */
#define ADC_CH_BG_MASK                   (1UL << 16)                      /*!< ADC channel 12 (band-gap ) mask  \hideinitializer */
#define ADC_CH_TS_MASK                   (1UL << 17)                      /*!< ADC channel 13 (temperature sensor) mask  \hideinitializer */
#define ADC_CMP_LESS_THAN                (0UL)                            /*!< ADC compare condition less than  \hideinitializer */
#define ADC_CMP_GREATER_OR_EQUAL_TO      (ADC_CMP0_CMPCOND_Msk)           /*!< ADC compare condition greater or equal to  \hideinitializer */
#define ADC_TRIGGER_BY_EXT_PIN           (0UL)                            /*!< ADC trigger by STADC pin  \hideinitializer */
#define ADC_TRIGGER_BY_PWM               (ADC_CTL_HWTRGSEL_Msk)           /*!< ADC trigger by PWM events  \hideinitializer */
#define ADC_LOW_LEVEL_TRIGGER            (0UL << ADC_CTL_HWTRGCOND_Pos)   /*!< External pin low level trigger ADC  \hideinitializer */
#define ADC_HIGH_LEVEL_TRIGGER           (1UL << ADC_CTL_HWTRGCOND_Pos)   /*!< External pin high level trigger ADC  \hideinitializer */
#define ADC_FALLING_EDGE_TRIGGER         (2UL << ADC_CTL_HWTRGCOND_Pos)   /*!< External pin falling edge trigger ADC  \hideinitializer */
#define ADC_RISING_EDGE_TRIGGER          (3UL << ADC_CTL_HWTRGCOND_Pos)   /*!< External pin rising edge trigger ADC  \hideinitializer */
#define ADC_ADF_INT                      (ADC_STATUS0_ADIF_Msk)           /*!< ADC convert complete interrupt \hideinitializer */
#define ADC_CMP0_INT                     (ADC_STATUS0_ADCMPF0_Msk)        /*!< ADC comparator 0 interrupt  \hideinitializer */
#define ADC_CMP1_INT                     (ADC_STATUS0_ADCMPF1_Msk)        /*!< ADC comparator 1 interrupt  \hideinitializer */
#define ADC_INPUT_MODE_SINGLE_END        (0UL << ADC_CTL_DIFFEN_Pos)      /*!< ADC input mode set to single end  \hideinitializer */
#define ADC_INPUT_MODE_DIFFERENTIAL      (1UL << ADC_CTL_DIFFEN_Pos)      /*!< ADC input mode set to differential  \hideinitializer */
#define ADC_OPERATION_MODE_SINGLE        (0UL << ADC_CTL_OPMODE_Pos)      /*!< ADC operation mode set to single conversion  \hideinitializer */
#define ADC_OPERATION_MODE_SINGLE_CYCLE  (2UL << ADC_CTL_OPMODE_Pos)      /*!< ADC operation mode set to single cycle scan  \hideinitializer */
#define ADC_OPERATION_MODE_CONTINUOUS    (3UL << ADC_CTL_OPMODE_Pos)      /*!< ADC operation mode set to continuous scan  \hideinitializer */
#define ADC_DMODE_OUT_FORMAT_UNSIGNED    (0UL << ADC_CTL_DMOF_Pos)        /*!< ADC differential mode output format with unsigned  \hideinitializer */
#define ADC_DMODE_OUT_FORMAT_2COMPLEMENT (1UL << ADC_CTL_DMOF_Pos)        /*!< ADC differential mode output format with 2's complement  \hideinitializer */

/*@}*/ /* end of group NUC472_442_ADC_EXPORTED_CONSTANTS */


/** @addtogroup NUC472_442_ADC_EXPORTED_FUNCTIONS ADC Exported Functions
  @{
*/

/**
  * @brief Get the latest ADC conversion data
  * @param[in] adc Base address of ADC module
  * @param[in] u32ChNum Channel number
  * @return  Latest ADC conversion data
  * \hideinitializer
  */
#define ADC_GET_CONVERSION_DATA(adc, u32ChNum) ( ADC->DAT[u32ChNum] & ADC_DAT0_RESULT_Msk)

/**
  * @brief Return the user-specified interrupt flags
  * @param[in] adc Base address of ADC module
  * @param[in] u32Mask The combination of following interrupt status bits. Each bit corresponds to a interrupt status.
  *                     - \ref ADC_ADF_INT
  *                     - \ref ADC_CMP0_INT
  *                     - \ref ADC_CMP1_INT
  * @return  User specified interrupt flags
  * \hideinitializer
  */
#define ADC_GET_INT_FLAG(adc, u32Mask) (ADC->STATUS0 & (u32Mask))

/**
  * @brief This macro clear the selected interrupt status bits
  * @param[in] adc Base address of ADC module
  * @param[in] u32Mask The combination of following interrupt status bits. Each bit corresponds to a interrupt status.
  *                     - \ref ADC_ADF_INT
  *                     - \ref ADC_CMP0_INT
  *                     - \ref ADC_CMP1_INT
  * @return  None
  * \hideinitializer
  */
#define ADC_CLR_INT_FLAG(adc, u32Mask) (ADC->STATUS0 = (ADC->STATUS0 & ~(ADC_STATUS0_ADIF_Msk | \
                                                                       ADC_STATUS0_ADCMPF0_Msk | \
                                                                       ADC_STATUS0_ADCMPF1_Msk)) | (u32Mask))

/**
  * @brief Get the busy state of ADC
  * @param[in] adc Base address of ADC module
  * @return busy state of ADC
  * @retval 0 ADC is not busy
  * @retval 1 ADC is busy
  * \hideinitializer
  */
#define ADC_IS_BUSY(adc) (ADC->STATUS0 & ADC_STATUS0_BUSY_Msk ? 1 : 0)

/**
  * @brief Check if the ADC conversion data is over written or not
  * @param[in] adc Base address of ADC module
  * @param[in] u32ChNum Currently not used
  * @return Over run state of ADC data
  * @retval 0 ADC data is not overrun
  * @retval 1 ADC data us overrun
  * \hideinitializer
  */
#define ADC_IS_DATA_OVERRUN(adc, u32ChNum) (ADC->STATUS1 & ( 1 << (ADC_STATUS1_OV_Pos + u32ChNum)) ? 1 : 0)

/**
  * @brief Check if the ADC conversion data is valid or not
  * @param[in] adc Base address of ADC module
  * @param[in] u32ChNum Currently not used
  * @return Valid state of ADC data
  * @retval 0 ADC data is not valid
  * @retval 1 ADC data us valid
  * \hideinitializer
  */
#define ADC_IS_DATA_VALID(adc, u32ChNum) (ADC->STATUS1 & ( 1 << (ADC_STATUS1_VALID_Pos + u32ChNum)) ? 1 : 0)

/**
  * @brief Power down ADC module
  * @param[in] adc Base address of ADC module
  * @return None
  * \hideinitializer
  */
#define ADC_POWER_DOWN(adc) (ADC->CTL &= ~ADC_CTL_ADCEN_Msk)

/**
  * @brief Power on ADC module
  * @param[in] adc Base address of ADC module
  * @return None
  * \hideinitializer
  */
#define ADC_POWER_ON(adc) (ADC->CTL |= ADC_CTL_ADCEN_Msk)

/**
  * @brief Configure the comparator 0 and enable it
  * @param[in] adc Base address of ADC module
  * @param[in] u32ChNum  Specifies the source channel, valid value are from 0 to 7
  * @param[in] u32Condition Specifies the compare condition
  *                     - \ref ADC_CMP_LESS_THAN
  *                     - \ref ADC_CMP_GREATER_OR_EQUAL_TO
  * @param[in] u32Data Specifies the compare value. Valid value are between 0 ~ 0x3FF
  * @param[in] u32MatchCount Specifies the match count setting, valid values are between 1~16
  * @return None
  * @details For example, ADC_ENABLE_CMP0(ADC, 5, ADC_CMP_GREATER_OR_EQUAL_TO, 0x800, 10);
  *          Means ADC will assert comparator 0 flag if channel 5 conversion result is
  *          greater or equal to 0x800 for 10 times continuously.
  * \hideinitializer
  */
#define ADC_ENABLE_CMP0(adc, \
                        u32ChNum, \
                        u32Condition, \
                        u32Data, \
                        u32MatchCount) (ADC->CMP[0] = ((u32ChNum) << ADC_CMP0_CMPCH_Pos) | \
                                                                   (u32Condition) | \
                                                                   ((u32Data) << ADC_CMP0_CMPDAT_Pos) | \
                                                                   (((u32MatchCount) - 1) << ADC_CMP0_CMPMCNT_Pos) |\
                                                                   ADC_CMP0_ADCMPEN_Msk)

/**
  * @brief Disable comparator 0
  * @param[in] adc Base address of ADC module
  * \hideinitializer
  */
#define ADC_DISABLE_CMP0(adc) (ADC->CMP[0] = 0)

/**
  * @brief Configure the comparator 1 and enable it
  * @param[in] adc Base address of ADC module
  * @param[in] u32ChNum  Specifies the source channel, valid value are from 0 to 7
  * @param[in] u32Condition Specifies the compare condition
  *                     - \ref ADC_CMP_LESS_THAN
  *                     - \ref ADC_CMP_GREATER_OR_EQUAL_TO
  * @param[in] u32Data Specifies the compare value. Valid value are between 0 ~ 0x3FF
  * @param[in] u32MatchCount Specifies the match count setting, valid values are between 1~16
  * @return None
  * @details For example, ADC_ENABLE_CMP1(ADC, 5, ADC_CMP_GREATER_OR_EQUAL_TO, 0x800, 10);
  *          Means ADC will assert comparator 1 flag if channel 5 conversion result is
  *          greater or equal to 0x800 for 10 times continuously.
  * \hideinitializer
  */
#define ADC_ENABLE_CMP1(adc, \
                        u32ChNum, \
                        u32Condition, \
                        u32Data, \
                        u32MatchCount) (ADC->CMP[1] = ((u32ChNum) << ADC_CMP1_CMPCH_Pos) | \
                                                                   (u32Condition) | \
                                                                   ((u32Data) << ADC_CMP1_CMPDAT_Pos) | \
                                                                   ((u32MatchCount - 1) << ADC_CMP1_CMPMCNT_Pos) |\
                                                                   ADC_CMP1_ADCMPEN_Msk)

/**
  * @brief Disable comparator 1
  * @param[in] adc Base address of ADC module
  * \hideinitializer
  */
#define ADC_DISABLE_CMP1(adc) (ADC->CMP[1] = 0)

/**
  * @brief Set ADC input channel. Enabled channel will be converted while ADC starts.
  * @param[in] adc Base address of ADC module
  * @param[in] u32Mask  Channel enable bit. Each bit corresponds to a input channel. Bit 0 is channel 0, bit 1 is channel 1...
  * @return None
  * \hideinitializer
  */
#define ADC_SET_INPUT_CHANNEL(adc, u32Mask) (ADC->CHEN = (ADC->CHEN & ~ADC_CHEN_CHEN_Msk) | (u32Mask))

/**
  * @brief Start the A/D conversion.
  * @param[in] adc Base address of ADC module
  * @return None
  * \hideinitializer
  */
#define ADC_START_CONV(adc) (ADC->CTL |= ADC_CTL_SWTRG_Msk)

/**
  * @brief Stop the A/D conversion.
  * @param[in] adc Base address of ADC module
  * @return None
  * \hideinitializer
  */
#define ADC_STOP_CONV(adc) (ADC->CTL &= ~ADC_CTL_SWTRG_Msk)

/**
  * @brief Set the output format in differential input mode.
  * @param[in] adc Base address of ADC module
  * @param[in] u32Format Differential input mode output format. Valid values are:
  *                 - \ref ADC_DMODE_OUT_FORMAT_UNSIGNED
  *                 - \ref ADC_DMODE_OUT_FORMAT_2COMPLEMENT
  * @return None
  * \hideinitializer
  */
#define ADC_SET_DMOF(adc, u32Format) (ADC->CTL = (ADC->CTL & ~ADC_CTL_DMOF_Msk) | u32Format)

/**
  * @brief Enable PDMA transfer.
  * @param[in] adc Base address of ADC module
  * @return None
  * \hideinitializer
  */
#define ADC_ENABLE_PDMA(adc) (ADC->CTL |= ADC_CTL_PDMAEN_Msk)

/**
  * @brief Disable PDMA transfer.
  * @param[in] adc Base address of ADC module
  * @return None
  * \hideinitializer
  */
#define ADC_DISABLE_PDMA(adc) (ADC->CTL &= ~ADC_CTL_PDMAEN_Msk)

/**
  * @brief Get PDMA current transfer data
  * @param[in] adc Base address of ADC module
  * @return  PDMA current transfer data
  * \hideinitializer
  */
#define ADC_GET_PDMA_DATA(adc) ( ADC->CURDAT & ADC_CURDAT_CURDAT_Msk)

void ADC_Open(ADC_T *adc,
              uint32_t u32InputMode,
              uint32_t u32OpMode,
              uint32_t u32ChMask);
void ADC_Close(ADC_T *adc);
void ADC_EnableHWTrigger(ADC_T *adc,
                         uint32_t u32Source,
                         uint32_t u32Param);
void ADC_DisableHWTrigger(ADC_T *adc);
void ADC_EnableInt(ADC_T *adc, uint32_t u32Mask);
void ADC_DisableInt(ADC_T *adc, uint32_t u32Mask);



/*@}*/ /* end of group NUC472_442_ADC_EXPORTED_FUNCTIONS */

/*@}*/ /* end of group NUC472_442_ADC_Driver */

/*@}*/ /* end of group NUC472_442_Device_Driver */

#ifdef __cplusplus
}
#endif

#endif //__ADC_H__

/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/