306 lines
13 KiB
C
306 lines
13 KiB
C
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/**************************************************************************//**
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* @file adc.h
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* @version V1.00
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* $Revision: 23 $
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* $Date: 15/11/16 2:12p $
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* @brief NUC472/NUC442 ADC driver header file
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*
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* @note
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* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#ifndef __ADC_H__
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#define __ADC_H__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
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@{
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*/
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/** @addtogroup NUC472_442_ADC_Driver ADC Driver
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@{
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*/
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/** @addtogroup NUC472_442_ADC_EXPORTED_CONSTANTS ADC Exported Constants
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@{
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*/
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#define ADC_CH_0_MASK (1UL << 0) /*!< ADC channel 0 mask \hideinitializer */
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#define ADC_CH_1_MASK (1UL << 1) /*!< ADC channel 1 mask \hideinitializer */
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#define ADC_CH_2_MASK (1UL << 2) /*!< ADC channel 2 mask \hideinitializer */
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#define ADC_CH_3_MASK (1UL << 3) /*!< ADC channel 3 mask \hideinitializer */
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#define ADC_CH_4_MASK (1UL << 4) /*!< ADC channel 4 mask \hideinitializer */
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#define ADC_CH_5_MASK (1UL << 5) /*!< ADC channel 5 mask \hideinitializer */
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#define ADC_CH_6_MASK (1UL << 6) /*!< ADC channel 6 mask \hideinitializer */
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#define ADC_CH_7_MASK (1UL << 7) /*!< ADC channel 7 mask \hideinitializer */
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#define ADC_CH_8_MASK (1UL << 8) /*!< ADC channel 8 mask \hideinitializer */
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#define ADC_CH_9_MASK (1UL << 9) /*!< ADC channel 9 mask \hideinitializer */
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#define ADC_CH_10_MASK (1UL << 10) /*!< ADC channel 10 mask \hideinitializer */
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#define ADC_CH_11_MASK (1UL << 11) /*!< ADC channel 11 mask \hideinitializer */
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#define ADC_CH_BG_MASK (1UL << 16) /*!< ADC channel 12 (band-gap ) mask \hideinitializer */
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#define ADC_CH_TS_MASK (1UL << 17) /*!< ADC channel 13 (temperature sensor) mask \hideinitializer */
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#define ADC_CMP_LESS_THAN (0UL) /*!< ADC compare condition less than \hideinitializer */
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#define ADC_CMP_GREATER_OR_EQUAL_TO (ADC_CMP0_CMPCOND_Msk) /*!< ADC compare condition greater or equal to \hideinitializer */
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#define ADC_TRIGGER_BY_EXT_PIN (0UL) /*!< ADC trigger by STADC pin \hideinitializer */
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#define ADC_TRIGGER_BY_PWM (ADC_CTL_HWTRGSEL_Msk) /*!< ADC trigger by PWM events \hideinitializer */
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#define ADC_LOW_LEVEL_TRIGGER (0UL << ADC_CTL_HWTRGCOND_Pos) /*!< External pin low level trigger ADC \hideinitializer */
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#define ADC_HIGH_LEVEL_TRIGGER (1UL << ADC_CTL_HWTRGCOND_Pos) /*!< External pin high level trigger ADC \hideinitializer */
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#define ADC_FALLING_EDGE_TRIGGER (2UL << ADC_CTL_HWTRGCOND_Pos) /*!< External pin falling edge trigger ADC \hideinitializer */
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#define ADC_RISING_EDGE_TRIGGER (3UL << ADC_CTL_HWTRGCOND_Pos) /*!< External pin rising edge trigger ADC \hideinitializer */
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#define ADC_ADF_INT (ADC_STATUS0_ADIF_Msk) /*!< ADC convert complete interrupt \hideinitializer */
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#define ADC_CMP0_INT (ADC_STATUS0_ADCMPF0_Msk) /*!< ADC comparator 0 interrupt \hideinitializer */
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#define ADC_CMP1_INT (ADC_STATUS0_ADCMPF1_Msk) /*!< ADC comparator 1 interrupt \hideinitializer */
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#define ADC_INPUT_MODE_SINGLE_END (0UL << ADC_CTL_DIFFEN_Pos) /*!< ADC input mode set to single end \hideinitializer */
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#define ADC_INPUT_MODE_DIFFERENTIAL (1UL << ADC_CTL_DIFFEN_Pos) /*!< ADC input mode set to differential \hideinitializer */
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#define ADC_OPERATION_MODE_SINGLE (0UL << ADC_CTL_OPMODE_Pos) /*!< ADC operation mode set to single conversion \hideinitializer */
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#define ADC_OPERATION_MODE_SINGLE_CYCLE (2UL << ADC_CTL_OPMODE_Pos) /*!< ADC operation mode set to single cycle scan \hideinitializer */
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#define ADC_OPERATION_MODE_CONTINUOUS (3UL << ADC_CTL_OPMODE_Pos) /*!< ADC operation mode set to continuous scan \hideinitializer */
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#define ADC_DMODE_OUT_FORMAT_UNSIGNED (0UL << ADC_CTL_DMOF_Pos) /*!< ADC differential mode output format with unsigned \hideinitializer */
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#define ADC_DMODE_OUT_FORMAT_2COMPLEMENT (1UL << ADC_CTL_DMOF_Pos) /*!< ADC differential mode output format with 2's complement \hideinitializer */
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/*@}*/ /* end of group NUC472_442_ADC_EXPORTED_CONSTANTS */
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/** @addtogroup NUC472_442_ADC_EXPORTED_FUNCTIONS ADC Exported Functions
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@{
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*/
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/**
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* @brief Get the latest ADC conversion data
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* @param[in] adc Base address of ADC module
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* @param[in] u32ChNum Channel number
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* @return Latest ADC conversion data
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* \hideinitializer
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*/
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#define ADC_GET_CONVERSION_DATA(adc, u32ChNum) ( ADC->DAT[u32ChNum] & ADC_DAT0_RESULT_Msk)
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/**
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* @brief Return the user-specified interrupt flags
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* @param[in] adc Base address of ADC module
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* @param[in] u32Mask The combination of following interrupt status bits. Each bit corresponds to a interrupt status.
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* - \ref ADC_ADF_INT
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* - \ref ADC_CMP0_INT
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* - \ref ADC_CMP1_INT
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* @return User specified interrupt flags
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* \hideinitializer
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*/
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#define ADC_GET_INT_FLAG(adc, u32Mask) (ADC->STATUS0 & (u32Mask))
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/**
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* @brief This macro clear the selected interrupt status bits
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* @param[in] adc Base address of ADC module
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* @param[in] u32Mask The combination of following interrupt status bits. Each bit corresponds to a interrupt status.
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* - \ref ADC_ADF_INT
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* - \ref ADC_CMP0_INT
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* - \ref ADC_CMP1_INT
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* @return None
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* \hideinitializer
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*/
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#define ADC_CLR_INT_FLAG(adc, u32Mask) (ADC->STATUS0 = (ADC->STATUS0 & ~(ADC_STATUS0_ADIF_Msk | \
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ADC_STATUS0_ADCMPF0_Msk | \
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ADC_STATUS0_ADCMPF1_Msk)) | (u32Mask))
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/**
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* @brief Get the busy state of ADC
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* @param[in] adc Base address of ADC module
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* @return busy state of ADC
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* @retval 0 ADC is not busy
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* @retval 1 ADC is busy
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* \hideinitializer
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*/
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#define ADC_IS_BUSY(adc) (ADC->STATUS0 & ADC_STATUS0_BUSY_Msk ? 1 : 0)
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/**
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* @brief Check if the ADC conversion data is over written or not
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* @param[in] adc Base address of ADC module
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* @param[in] u32ChNum Currently not used
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* @return Over run state of ADC data
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* @retval 0 ADC data is not overrun
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* @retval 1 ADC data us overrun
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* \hideinitializer
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*/
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#define ADC_IS_DATA_OVERRUN(adc, u32ChNum) (ADC->STATUS1 & ( 1 << (ADC_STATUS1_OV_Pos + u32ChNum)) ? 1 : 0)
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/**
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* @brief Check if the ADC conversion data is valid or not
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* @param[in] adc Base address of ADC module
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* @param[in] u32ChNum Currently not used
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* @return Valid state of ADC data
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* @retval 0 ADC data is not valid
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* @retval 1 ADC data us valid
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* \hideinitializer
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*/
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#define ADC_IS_DATA_VALID(adc, u32ChNum) (ADC->STATUS1 & ( 1 << (ADC_STATUS1_VALID_Pos + u32ChNum)) ? 1 : 0)
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/**
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* @brief Power down ADC module
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* @param[in] adc Base address of ADC module
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* @return None
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* \hideinitializer
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*/
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#define ADC_POWER_DOWN(adc) (ADC->CTL &= ~ADC_CTL_ADCEN_Msk)
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/**
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* @brief Power on ADC module
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* @param[in] adc Base address of ADC module
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* @return None
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* \hideinitializer
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*/
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#define ADC_POWER_ON(adc) (ADC->CTL |= ADC_CTL_ADCEN_Msk)
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/**
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* @brief Configure the comparator 0 and enable it
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* @param[in] adc Base address of ADC module
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* @param[in] u32ChNum Specifies the source channel, valid value are from 0 to 7
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* @param[in] u32Condition Specifies the compare condition
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* - \ref ADC_CMP_LESS_THAN
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* - \ref ADC_CMP_GREATER_OR_EQUAL_TO
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* @param[in] u32Data Specifies the compare value. Valid value are between 0 ~ 0x3FF
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* @param[in] u32MatchCount Specifies the match count setting, valid values are between 1~16
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* @return None
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* @details For example, ADC_ENABLE_CMP0(ADC, 5, ADC_CMP_GREATER_OR_EQUAL_TO, 0x800, 10);
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* Means ADC will assert comparator 0 flag if channel 5 conversion result is
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* greater or equal to 0x800 for 10 times continuously.
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* \hideinitializer
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*/
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#define ADC_ENABLE_CMP0(adc, \
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u32ChNum, \
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u32Condition, \
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u32Data, \
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u32MatchCount) (ADC->CMP[0] = ((u32ChNum) << ADC_CMP0_CMPCH_Pos) | \
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(u32Condition) | \
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((u32Data) << ADC_CMP0_CMPDAT_Pos) | \
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(((u32MatchCount) - 1) << ADC_CMP0_CMPMCNT_Pos) |\
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ADC_CMP0_ADCMPEN_Msk)
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/**
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* @brief Disable comparator 0
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* @param[in] adc Base address of ADC module
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* \hideinitializer
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*/
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#define ADC_DISABLE_CMP0(adc) (ADC->CMP[0] = 0)
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/**
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* @brief Configure the comparator 1 and enable it
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* @param[in] adc Base address of ADC module
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* @param[in] u32ChNum Specifies the source channel, valid value are from 0 to 7
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* @param[in] u32Condition Specifies the compare condition
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* - \ref ADC_CMP_LESS_THAN
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* - \ref ADC_CMP_GREATER_OR_EQUAL_TO
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* @param[in] u32Data Specifies the compare value. Valid value are between 0 ~ 0x3FF
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* @param[in] u32MatchCount Specifies the match count setting, valid values are between 1~16
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* @return None
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* @details For example, ADC_ENABLE_CMP1(ADC, 5, ADC_CMP_GREATER_OR_EQUAL_TO, 0x800, 10);
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* Means ADC will assert comparator 1 flag if channel 5 conversion result is
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* greater or equal to 0x800 for 10 times continuously.
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* \hideinitializer
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*/
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#define ADC_ENABLE_CMP1(adc, \
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u32ChNum, \
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u32Condition, \
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u32Data, \
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u32MatchCount) (ADC->CMP[1] = ((u32ChNum) << ADC_CMP1_CMPCH_Pos) | \
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(u32Condition) | \
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((u32Data) << ADC_CMP1_CMPDAT_Pos) | \
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((u32MatchCount - 1) << ADC_CMP1_CMPMCNT_Pos) |\
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ADC_CMP1_ADCMPEN_Msk)
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/**
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* @brief Disable comparator 1
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* @param[in] adc Base address of ADC module
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* \hideinitializer
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*/
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#define ADC_DISABLE_CMP1(adc) (ADC->CMP[1] = 0)
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/**
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* @brief Set ADC input channel. Enabled channel will be converted while ADC starts.
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* @param[in] adc Base address of ADC module
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* @param[in] u32Mask Channel enable bit. Each bit corresponds to a input channel. Bit 0 is channel 0, bit 1 is channel 1...
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* @return None
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* \hideinitializer
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*/
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#define ADC_SET_INPUT_CHANNEL(adc, u32Mask) (ADC->CHEN = (ADC->CHEN & ~ADC_CHEN_CHEN_Msk) | (u32Mask))
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/**
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* @brief Start the A/D conversion.
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* @param[in] adc Base address of ADC module
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* @return None
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* \hideinitializer
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*/
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#define ADC_START_CONV(adc) (ADC->CTL |= ADC_CTL_SWTRG_Msk)
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/**
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* @brief Stop the A/D conversion.
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* @param[in] adc Base address of ADC module
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* @return None
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* \hideinitializer
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*/
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#define ADC_STOP_CONV(adc) (ADC->CTL &= ~ADC_CTL_SWTRG_Msk)
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/**
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* @brief Set the output format in differential input mode.
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* @param[in] adc Base address of ADC module
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* @param[in] u32Format Differential input mode output format. Valid values are:
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* - \ref ADC_DMODE_OUT_FORMAT_UNSIGNED
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* - \ref ADC_DMODE_OUT_FORMAT_2COMPLEMENT
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* @return None
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* \hideinitializer
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*/
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#define ADC_SET_DMOF(adc, u32Format) (ADC->CTL = (ADC->CTL & ~ADC_CTL_DMOF_Msk) | u32Format)
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/**
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* @brief Enable PDMA transfer.
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* @param[in] adc Base address of ADC module
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* @return None
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* \hideinitializer
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*/
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#define ADC_ENABLE_PDMA(adc) (ADC->CTL |= ADC_CTL_PDMAEN_Msk)
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/**
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* @brief Disable PDMA transfer.
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* @param[in] adc Base address of ADC module
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* @return None
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* \hideinitializer
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*/
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#define ADC_DISABLE_PDMA(adc) (ADC->CTL &= ~ADC_CTL_PDMAEN_Msk)
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/**
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* @brief Get PDMA current transfer data
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* @param[in] adc Base address of ADC module
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* @return PDMA current transfer data
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* \hideinitializer
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*/
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#define ADC_GET_PDMA_DATA(adc) ( ADC->CURDAT & ADC_CURDAT_CURDAT_Msk)
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void ADC_Open(ADC_T *adc,
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uint32_t u32InputMode,
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uint32_t u32OpMode,
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uint32_t u32ChMask);
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void ADC_Close(ADC_T *adc);
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void ADC_EnableHWTrigger(ADC_T *adc,
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uint32_t u32Source,
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uint32_t u32Param);
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void ADC_DisableHWTrigger(ADC_T *adc);
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void ADC_EnableInt(ADC_T *adc, uint32_t u32Mask);
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void ADC_DisableInt(ADC_T *adc, uint32_t u32Mask);
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/*@}*/ /* end of group NUC472_442_ADC_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group NUC472_442_ADC_Driver */
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/*@}*/ /* end of group NUC472_442_Device_Driver */
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#ifdef __cplusplus
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}
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#endif
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#endif //__ADC_H__
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/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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