/* * The Clear BSD License * Copyright (c) 2015, Freescale Semiconductor, Inc. * Copyright 2016-2017 NXP * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted (subject to the limitations in the disclaimer below) provided * that the following conditions are met: * * o Redistributions of source code must retain the above copyright notice, this list * of conditions and the following disclaimer. * * o Redistributions in binary form must reproduce the above copyright notice, this * list of conditions and the following disclaimer in the documentation and/or * other materials provided with the distribution. * * o Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _FSL_TSI_V4_H_ #define _FSL_TSI_V4_H_ #include "fsl_common.h" /*! * @addtogroup tsi_v4_driver * @{ */ /******************************************************************************* * Definitions ******************************************************************************/ /*! @name Driver version */ /*@{*/ /*! @brief TSI driver version */ #define FSL_TSI_DRIVER_VERSION (MAKE_VERSION(2, 1, 2)) /*@}*/ /*! @brief TSI status flags macro collection */ #define ALL_FLAGS_MASK (TSI_GENCS_EOSF_MASK | TSI_GENCS_OUTRGF_MASK) /*! @brief resistor bit shift in EXTCHRG bit-field */ #define TSI_V4_EXTCHRG_RESISTOR_BIT_SHIFT TSI_GENCS_EXTCHRG_SHIFT /*! @brief filter bits shift in EXTCHRG bit-field */ #define TSI_V4_EXTCHRG_FILTER_BITS_SHIFT (1U + TSI_GENCS_EXTCHRG_SHIFT) /*! @brief macro of clearing the resistor bit in EXTCHRG bit-field */ #define TSI_V4_EXTCHRG_RESISTOR_BIT_CLEAR \ ((uint32_t)((~(ALL_FLAGS_MASK | TSI_GENCS_EXTCHRG_MASK)) | (3U << TSI_V4_EXTCHRG_FILTER_BITS_SHIFT))) /*! @brief macro of clearing the filter bits in EXTCHRG bit-field */ #define TSI_V4_EXTCHRG_FILTER_BITS_CLEAR \ ((uint32_t)((~(ALL_FLAGS_MASK | TSI_GENCS_EXTCHRG_MASK)) | (1U << TSI_V4_EXTCHRG_RESISTOR_BIT_SHIFT))) /*! * @brief TSI number of scan intervals for each electrode. * * These constants define the tsi number of consecutive scans in a TSI instance for each electrode. */ typedef enum _tsi_n_consecutive_scans { kTSI_ConsecutiveScansNumber_1time = 0U, /*!< Once per electrode */ kTSI_ConsecutiveScansNumber_2time = 1U, /*!< Twice per electrode */ kTSI_ConsecutiveScansNumber_3time = 2U, /*!< 3 times consecutive scan */ kTSI_ConsecutiveScansNumber_4time = 3U, /*!< 4 times consecutive scan */ kTSI_ConsecutiveScansNumber_5time = 4U, /*!< 5 times consecutive scan */ kTSI_ConsecutiveScansNumber_6time = 5U, /*!< 6 times consecutive scan */ kTSI_ConsecutiveScansNumber_7time = 6U, /*!< 7 times consecutive scan */ kTSI_ConsecutiveScansNumber_8time = 7U, /*!< 8 times consecutive scan */ kTSI_ConsecutiveScansNumber_9time = 8U, /*!< 9 times consecutive scan */ kTSI_ConsecutiveScansNumber_10time = 9U, /*!< 10 times consecutive scan */ kTSI_ConsecutiveScansNumber_11time = 10U, /*!< 11 times consecutive scan */ kTSI_ConsecutiveScansNumber_12time = 11U, /*!< 12 times consecutive scan */ kTSI_ConsecutiveScansNumber_13time = 12U, /*!< 13 times consecutive scan */ kTSI_ConsecutiveScansNumber_14time = 13U, /*!< 14 times consecutive scan */ kTSI_ConsecutiveScansNumber_15time = 14U, /*!< 15 times consecutive scan */ kTSI_ConsecutiveScansNumber_16time = 15U, /*!< 16 times consecutive scan */ kTSI_ConsecutiveScansNumber_17time = 16U, /*!< 17 times consecutive scan */ kTSI_ConsecutiveScansNumber_18time = 17U, /*!< 18 times consecutive scan */ kTSI_ConsecutiveScansNumber_19time = 18U, /*!< 19 times consecutive scan */ kTSI_ConsecutiveScansNumber_20time = 19U, /*!< 20 times consecutive scan */ kTSI_ConsecutiveScansNumber_21time = 20U, /*!< 21 times consecutive scan */ kTSI_ConsecutiveScansNumber_22time = 21U, /*!< 22 times consecutive scan */ kTSI_ConsecutiveScansNumber_23time = 22U, /*!< 23 times consecutive scan */ kTSI_ConsecutiveScansNumber_24time = 23U, /*!< 24 times consecutive scan */ kTSI_ConsecutiveScansNumber_25time = 24U, /*!< 25 times consecutive scan */ kTSI_ConsecutiveScansNumber_26time = 25U, /*!< 26 times consecutive scan */ kTSI_ConsecutiveScansNumber_27time = 26U, /*!< 27 times consecutive scan */ kTSI_ConsecutiveScansNumber_28time = 27U, /*!< 28 times consecutive scan */ kTSI_ConsecutiveScansNumber_29time = 28U, /*!< 29 times consecutive scan */ kTSI_ConsecutiveScansNumber_30time = 29U, /*!< 30 times consecutive scan */ kTSI_ConsecutiveScansNumber_31time = 30U, /*!< 31 times consecutive scan */ kTSI_ConsecutiveScansNumber_32time = 31U /*!< 32 times consecutive scan */ } tsi_n_consecutive_scans_t; /*! * @brief TSI electrode oscillator prescaler. * * These constants define the TSI electrode oscillator prescaler in a TSI instance. */ typedef enum _tsi_electrode_osc_prescaler { kTSI_ElecOscPrescaler_1div = 0U, /*!< Electrode oscillator frequency divided by 1 */ kTSI_ElecOscPrescaler_2div = 1U, /*!< Electrode oscillator frequency divided by 2 */ kTSI_ElecOscPrescaler_4div = 2U, /*!< Electrode oscillator frequency divided by 4 */ kTSI_ElecOscPrescaler_8div = 3U, /*!< Electrode oscillator frequency divided by 8 */ kTSI_ElecOscPrescaler_16div = 4U, /*!< Electrode oscillator frequency divided by 16 */ kTSI_ElecOscPrescaler_32div = 5U, /*!< Electrode oscillator frequency divided by 32 */ kTSI_ElecOscPrescaler_64div = 6U, /*!< Electrode oscillator frequency divided by 64 */ kTSI_ElecOscPrescaler_128div = 7U /*!< Electrode oscillator frequency divided by 128 */ } tsi_electrode_osc_prescaler_t; /*! * @brief TSI analog mode select. * * Set up TSI analog modes in a TSI instance. */ typedef enum _tsi_analog_mode { kTSI_AnalogModeSel_Capacitive = 0U, /*!< Active TSI capacitive sensing mode */ kTSI_AnalogModeSel_NoiseNoFreqLim = 4U, /*!< Single threshold noise detection mode with no freq. limitation. */ kTSI_AnalogModeSel_NoiseFreqLim = 8U, /*!< Single threshold noise detection mode with freq. limitation. */ kTSI_AnalogModeSel_AutoNoise = 12U /*!< Active TSI analog in automatic noise detection mode */ } tsi_analog_mode_t; /*! * @brief TSI Reference oscillator charge and discharge current select. * * These constants define the TSI Reference oscillator charge current select in a TSI (REFCHRG) instance. */ typedef enum _tsi_reference_osc_charge_current { kTSI_RefOscChargeCurrent_500nA = 0U, /*!< Reference oscillator charge current is 500 µA */ kTSI_RefOscChargeCurrent_1uA = 1U, /*!< Reference oscillator charge current is 1 µA */ kTSI_RefOscChargeCurrent_2uA = 2U, /*!< Reference oscillator charge current is 2 µA */ kTSI_RefOscChargeCurrent_4uA = 3U, /*!< Reference oscillator charge current is 4 µA */ kTSI_RefOscChargeCurrent_8uA = 4U, /*!< Reference oscillator charge current is 8 µA */ kTSI_RefOscChargeCurrent_16uA = 5U, /*!< Reference oscillator charge current is 16 µA */ kTSI_RefOscChargeCurrent_32uA = 6U, /*!< Reference oscillator charge current is 32 µA */ kTSI_RefOscChargeCurrent_64uA = 7U /*!< Reference oscillator charge current is 64 µA */ } tsi_reference_osc_charge_current_t; /*! * @brief TSI oscilator's voltage rails. * * These bits indicate the oscillator's voltage rails. */ typedef enum _tsi_osc_voltage_rails { kTSI_OscVolRailsOption_0 = 0U, /*!< DVOLT value option 0, the value may differ on different platforms */ kTSI_OscVolRailsOption_1 = 1U, /*!< DVOLT value option 1, the value may differ on different platforms */ kTSI_OscVolRailsOption_2 = 2U, /*!< DVOLT value option 2, the value may differ on different platforms */ kTSI_OscVolRailsOption_3 = 3U /*!< DVOLT value option 3, the value may differ on different platforms */ } tsi_osc_voltage_rails_t; /*! * @brief TSI External oscillator charge and discharge current select. * * These bits indicate the electrode oscillator charge and discharge current value * in TSI (EXTCHRG) instance. */ typedef enum _tsi_external_osc_charge_current { kTSI_ExtOscChargeCurrent_500nA = 0U, /*!< External oscillator charge current is 500 µA */ kTSI_ExtOscChargeCurrent_1uA = 1U, /*!< External oscillator charge current is 1 µA */ kTSI_ExtOscChargeCurrent_2uA = 2U, /*!< External oscillator charge current is 2 µA */ kTSI_ExtOscChargeCurrent_4uA = 3U, /*!< External oscillator charge current is 4 µA */ kTSI_ExtOscChargeCurrent_8uA = 4U, /*!< External oscillator charge current is 8 µA */ kTSI_ExtOscChargeCurrent_16uA = 5U, /*!< External oscillator charge current is 16 µA */ kTSI_ExtOscChargeCurrent_32uA = 6U, /*!< External oscillator charge current is 32 µA */ kTSI_ExtOscChargeCurrent_64uA = 7U /*!< External oscillator charge current is 64 µA */ } tsi_external_osc_charge_current_t; /*! * @brief TSI series resistance RS value select. * * These bits indicate the electrode RS series resistance for the noise mode * in TSI (EXTCHRG) instance. */ typedef enum _tsi_series_resistance { kTSI_SeriesResistance_32k = 0U, /*!< Series Resistance is 32 kilo ohms */ kTSI_SeriesResistance_187k = 1U /*!< Series Resistance is 18 7 kilo ohms */ } tsi_series_resistor_t; /*! * @brief TSI series filter bits select. * * These bits indicate the count of the filter bits * in TSI noise mode EXTCHRG[2:1] bits */ typedef enum _tsi_filter_bits { kTSI_FilterBits_3 = 0U, /*!< 3 filter bits, 8 peaks increments the cnt+1 */ kTSI_FilterBits_2 = 1U, /*!< 2 filter bits, 4 peaks increments the cnt+1 */ kTSI_FilterBits_1 = 2U, /*!< 1 filter bits, 2 peaks increments the cnt+1 */ kTSI_FilterBits_0 = 3U /*!< no filter bits,1 peak increments the cnt+1 */ } tsi_filter_bits_t; /*! @brief TSI status flags. */ typedef enum _tsi_status_flags { kTSI_EndOfScanFlag = TSI_GENCS_EOSF_MASK, /*!< End-Of-Scan flag */ kTSI_OutOfRangeFlag = TSI_GENCS_OUTRGF_MASK /*!< Out-Of-Range flag */ } tsi_status_flags_t; /*! @brief TSI feature interrupt source.*/ typedef enum _tsi_interrupt_enable { kTSI_GlobalInterruptEnable = 1U, /*!< TSI module global interrupt */ kTSI_OutOfRangeInterruptEnable = 2U, /*!< Out-Of-Range interrupt */ kTSI_EndOfScanInterruptEnable = 4U /*!< End-Of-Scan interrupt */ } tsi_interrupt_enable_t; /*! @brief TSI calibration data storage. */ typedef struct _tsi_calibration_data { uint16_t calibratedData[FSL_FEATURE_TSI_CHANNEL_COUNT]; /*!< TSI calibration data storage buffer */ } tsi_calibration_data_t; /*! * @brief TSI configuration structure. * * This structure contains the settings for the most common TSI configurations including * the TSI module charge currents, number of scans, thresholds, and so on. */ typedef struct _tsi_config { uint16_t thresh; /*!< High threshold. */ uint16_t thresl; /*!< Low threshold. */ tsi_electrode_osc_prescaler_t prescaler; /*!< Prescaler */ tsi_external_osc_charge_current_t extchrg; /*!< Electrode charge current */ tsi_reference_osc_charge_current_t refchrg; /*!< Reference charge current */ tsi_n_consecutive_scans_t nscn; /*!< Number of scans. */ tsi_analog_mode_t mode; /*!< TSI mode of operation. */ tsi_osc_voltage_rails_t dvolt; /*!< Oscillator's voltage rails. */ tsi_series_resistor_t resistor; /*!< Series resistance value */ tsi_filter_bits_t filter; /*!< Noise mode filter bits */ } tsi_config_t; /******************************************************************************* * API ******************************************************************************/ #ifdef __cplusplus extern "C" { #endif /*! * @brief Initializes hardware. * * @details Initializes the peripheral to the targeted state specified by parameter configuration, * such as sets prescalers, number of scans, clocks, delta voltage * series resistor, filter bits, reference, and electrode charge current and threshold. * @param base TSI peripheral base address. * @param config Pointer to TSI module configuration structure. * @return none */ void TSI_Init(TSI_Type *base, const tsi_config_t *config); /*! * @brief De-initializes hardware. * * @details De-initializes the peripheral to default state. * * @param base TSI peripheral base address. * @return none */ void TSI_Deinit(TSI_Type *base); /*! * @brief Gets the TSI normal mode user configuration structure. * This interface sets userConfig structure to a default value. The configuration structure only * includes the settings for the whole TSI. * The user configure is set to these values: * @code userConfig->prescaler = kTSI_ElecOscPrescaler_2div; userConfig->extchrg = kTSI_ExtOscChargeCurrent_500nA; userConfig->refchrg = kTSI_RefOscChargeCurrent_4uA; userConfig->nscn = kTSI_ConsecutiveScansNumber_10time; userConfig->mode = kTSI_AnalogModeSel_Capacitive; userConfig->dvolt = kTSI_OscVolRailsOption_0; userConfig->thresh = 0U; userConfig->thresl = 0U; @endcode * * @param userConfig Pointer to the TSI user configuration structure. */ void TSI_GetNormalModeDefaultConfig(tsi_config_t *userConfig); /*! * @brief Gets the TSI low power mode default user configuration structure. * This interface sets userConfig structure to a default value. The configuration structure only * includes the settings for the whole TSI. * The user configure is set to these values: * @code userConfig->prescaler = kTSI_ElecOscPrescaler_2div; userConfig->extchrg = kTSI_ExtOscChargeCurrent_500nA; userConfig->refchrg = kTSI_RefOscChargeCurrent_4uA; userConfig->nscn = kTSI_ConsecutiveScansNumber_10time; userConfig->mode = kTSI_AnalogModeSel_Capacitive; userConfig->dvolt = kTSI_OscVolRailsOption_0; userConfig->thresh = 400U; userConfig->thresl = 0U; @endcode * * @param userConfig Pointer to the TSI user configuration structure. */ void TSI_GetLowPowerModeDefaultConfig(tsi_config_t *userConfig); /*! * @brief Hardware calibration. * * @details Calibrates the peripheral to fetch the initial counter value of * the enabled electrodes. * This API is mostly used at initial application setup. Call * this function after the \ref TSI_Init API and use the calibrated * counter values to set up applications (such as to determine * under which counter value we can confirm a touch event occurs). * * @param base TSI peripheral base address. * @param calBuff Data buffer that store the calibrated counter value. * @return none * */ void TSI_Calibrate(TSI_Type *base, tsi_calibration_data_t *calBuff); /*! * @brief Enables the TSI interrupt requests. * @param base TSI peripheral base address. * @param mask interrupt source * The parameter can be combination of the following source if defined: * @arg kTSI_GlobalInterruptEnable * @arg kTSI_EndOfScanInterruptEnable * @arg kTSI_OutOfRangeInterruptEnable */ void TSI_EnableInterrupts(TSI_Type *base, uint32_t mask); /*! * @brief Disables the TSI interrupt requests. * @param base TSI peripheral base address. * @param mask interrupt source * The parameter can be combination of the following source if defined: * @arg kTSI_GlobalInterruptEnable * @arg kTSI_EndOfScanInterruptEnable * @arg kTSI_OutOfRangeInterruptEnable */ void TSI_DisableInterrupts(TSI_Type *base, uint32_t mask); /*! * @brief Gets an interrupt flag. * This function gets the TSI interrupt flags. * * @param base TSI peripheral base address. * @return The mask of these status flags combination. */ static inline uint32_t TSI_GetStatusFlags(TSI_Type *base) { return (base->GENCS & (kTSI_EndOfScanFlag | kTSI_OutOfRangeFlag)); } /*! * @brief Clears the interrupt flag. * * This function clears the TSI interrupt flag, * automatically cleared flags can't be cleared by this function. * * @param base TSI peripheral base address. * @param mask The status flags to clear. */ void TSI_ClearStatusFlags(TSI_Type *base, uint32_t mask); /*! * @brief Gets the TSI scan trigger mode. * * @param base TSI peripheral base address. * @return Scan trigger mode. */ static inline uint32_t TSI_GetScanTriggerMode(TSI_Type *base) { return (base->GENCS & TSI_GENCS_STM_MASK); } /*! * @brief Gets the scan in progress flag. * * @param base TSI peripheral base address. * @return True - scan is in progress. * False - scan is not in progress. */ static inline bool TSI_IsScanInProgress(TSI_Type *base) { return (base->GENCS & TSI_GENCS_SCNIP_MASK); } /*! * @brief Sets the prescaler. * * @param base TSI peripheral base address. * @param prescaler Prescaler value. * @return none. */ static inline void TSI_SetElectrodeOSCPrescaler(TSI_Type *base, tsi_electrode_osc_prescaler_t prescaler) { base->GENCS = (base->GENCS & ~(TSI_GENCS_PS_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_PS(prescaler)); } /*! * @brief Sets the number of scans (NSCN). * * @param base TSI peripheral base address. * @param number Number of scans. * @return none. */ static inline void TSI_SetNumberOfScans(TSI_Type *base, tsi_n_consecutive_scans_t number) { base->GENCS = (base->GENCS & ~(TSI_GENCS_NSCN_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_NSCN(number)); } /*! * @brief Enables/disables the TSI module. * * @param base TSI peripheral base address. * @param enable Choose whether to enable or disable module; * - true Enable TSI module; * - false Disable TSI module; * @return none. */ static inline void TSI_EnableModule(TSI_Type *base, bool enable) { if (enable) { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_TSIEN_MASK; /* Enable module */ } else { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) & (~TSI_GENCS_TSIEN_MASK); /* Disable module */ } } /*! * @brief Sets the TSI low power STOP mode as enabled or disabled. * This enables the TSI module function in low power modes. * * @param base TSI peripheral base address. * @param enable Choose to enable or disable STOP mode. * - true Enable module in STOP mode; * - false Disable module in STOP mode; * @return none. */ static inline void TSI_EnableLowPower(TSI_Type *base, bool enable) { if (enable) { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_STPE_MASK; /* Module enabled in low power stop modes */ } else { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) & (~TSI_GENCS_STPE_MASK); /* Module disabled in low power stop modes */ } } /*! * @brief Enables/disables the hardware trigger scan. * * @param base TSI peripheral base address. * @param enable Choose to enable hardware trigger or software trigger scan. * - true Enable hardware trigger scan; * - false Enable software trigger scan; * @return none. */ static inline void TSI_EnableHardwareTriggerScan(TSI_Type *base, bool enable) { if (enable) { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_STM_MASK; /* Enable hardware trigger scan */ } else { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) & (~TSI_GENCS_STM_MASK); /* Enable software trigger scan */ } } /*! * @brief Starts a software trigger measurement (triggers a new measurement). * * @param base TSI peripheral base address. * @return none. */ static inline void TSI_StartSoftwareTrigger(TSI_Type *base) { base->DATA |= TSI_DATA_SWTS_MASK; } /*! * @brief Sets the measured channel number. * * @param base TSI peripheral base address. * @param channel Channel number 0 ... 15. * @return none. */ static inline void TSI_SetMeasuredChannelNumber(TSI_Type *base, uint8_t channel) { assert(channel < FSL_FEATURE_TSI_CHANNEL_COUNT); base->DATA = ((base->DATA) & ~TSI_DATA_TSICH_MASK) | (TSI_DATA_TSICH(channel)); } /*! * @brief Gets the current measured channel number. * * @param base TSI peripheral base address. * @return uint8_t Channel number 0 ... 15. */ static inline uint8_t TSI_GetMeasuredChannelNumber(TSI_Type *base) { return (uint8_t)((base->DATA & TSI_DATA_TSICH_MASK) >> TSI_DATA_TSICH_SHIFT); } /*! * @brief Enables/disables the DMA transfer. * * @param base TSI peripheral base address. * @param enable Choose to enable DMA transfer or not. * - true Enable DMA transfer; * - false Disable DMA transfer; * @return none. */ static inline void TSI_EnableDmaTransfer(TSI_Type *base, bool enable) { if (enable) { base->DATA |= TSI_DATA_DMAEN_MASK; /* Enable DMA transfer */ } else { base->DATA &= ~TSI_DATA_DMAEN_MASK; /* Disable DMA transfer */ } } #if defined(FSL_FEATURE_TSI_HAS_END_OF_SCAN_DMA_ENABLE) && (FSL_FEATURE_TSI_HAS_END_OF_SCAN_DMA_ENABLE == 1) /*! * @brief Decides whether to enable end of scan DMA transfer request only. * * @param base TSI peripheral base address. * @param enable Choose whether to enable End of Scan DMA transfer request only. * - true Enable End of Scan DMA transfer request only; * - false Both End-of-Scan and Out-of-Range can generate DMA transfer request. * @return none. */ static inline void TSI_EnableEndOfScanDmaTransferOnly(TSI_Type *base, bool enable) { if (enable) { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) | TSI_GENCS_EOSDMEO_MASK; /* Enable End of Scan DMA transfer request only; */ } else { base->GENCS = (base->GENCS & ~ALL_FLAGS_MASK) & (~TSI_GENCS_EOSDMEO_MASK); /* Both End-of-Scan and Out-of-Range can generate DMA transfer request. */ } } #endif /* End of (FSL_FEATURE_TSI_HAS_END_OF_SCAN_DMA_ENABLE == 1)*/ /*! * @brief Gets the conversion counter value. * * @param base TSI peripheral base address. * @return Accumulated scan counter value ticked by the reference clock. */ static inline uint16_t TSI_GetCounter(TSI_Type *base) { return (uint16_t)(base->DATA & TSI_DATA_TSICNT_MASK); } /*! * @brief Sets the TSI wake-up channel low threshold. * * @param base TSI peripheral base address. * @param low_threshold Low counter threshold. * @return none. */ static inline void TSI_SetLowThreshold(TSI_Type *base, uint16_t low_threshold) { assert(low_threshold < 0xFFFFU); base->TSHD = ((base->TSHD) & ~TSI_TSHD_THRESL_MASK) | (TSI_TSHD_THRESL(low_threshold)); } /*! * @brief Sets the TSI wake-up channel high threshold. * * @param base TSI peripheral base address. * @param high_threshold High counter threshold. * @return none. */ static inline void TSI_SetHighThreshold(TSI_Type *base, uint16_t high_threshold) { assert(high_threshold < 0xFFFFU); base->TSHD = ((base->TSHD) & ~TSI_TSHD_THRESH_MASK) | (TSI_TSHD_THRESH(high_threshold)); } /*! * @brief Sets the analog mode of the TSI module. * * @param base TSI peripheral base address. * @param mode Mode value. * @return none. */ static inline void TSI_SetAnalogMode(TSI_Type *base, tsi_analog_mode_t mode) { base->GENCS = (base->GENCS & ~(TSI_GENCS_MODE_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_MODE(mode)); } /*! * @brief Gets the noise mode result of the TSI module. * * @param base TSI peripheral base address. * @return Value of the GENCS[MODE] bit-fields. */ static inline uint8_t TSI_GetNoiseModeResult(TSI_Type *base) { return (base->GENCS & TSI_GENCS_MODE_MASK) >> TSI_GENCS_MODE_SHIFT; } /*! * @brief Sets the reference oscillator charge current. * * @param base TSI peripheral base address. * @param current The reference oscillator charge current. * @return none. */ static inline void TSI_SetReferenceChargeCurrent(TSI_Type *base, tsi_reference_osc_charge_current_t current) { base->GENCS = (base->GENCS & ~(TSI_GENCS_REFCHRG_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_REFCHRG(current)); } /*! * @brief Sets the external electrode charge current. * * @param base TSI peripheral base address. * @param current External electrode charge current. * @return none. */ static inline void TSI_SetElectrodeChargeCurrent(TSI_Type *base, tsi_external_osc_charge_current_t current) { base->GENCS = (base->GENCS & ~(TSI_GENCS_EXTCHRG_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_EXTCHRG(current)); } /*! * @brief Sets the oscillator's voltage rails. * * @param base TSI peripheral base address. * @param dvolt The voltage rails. * @return none. */ static inline void TSI_SetOscVoltageRails(TSI_Type *base, tsi_osc_voltage_rails_t dvolt) { base->GENCS = (base->GENCS & ~(TSI_GENCS_DVOLT_MASK | ALL_FLAGS_MASK)) | (TSI_GENCS_DVOLT(dvolt)); } /*! * @brief Sets the electrode series resistance value in EXTCHRG[0] bit. * * @param base TSI peripheral base address. * @param resistor Series resistance. * @return none. */ static inline void TSI_SetElectrodeSeriesResistor(TSI_Type *base, tsi_series_resistor_t resistor) { base->GENCS = (base->GENCS & TSI_V4_EXTCHRG_RESISTOR_BIT_CLEAR) | TSI_GENCS_EXTCHRG(resistor); } /*! * @brief Sets the electrode filter bits value in EXTCHRG[2:1] bits. * * @param base TSI peripheral base address. * @param filter Series resistance. * @return none. */ static inline void TSI_SetFilterBits(TSI_Type *base, tsi_filter_bits_t filter) { base->GENCS = (base->GENCS & TSI_V4_EXTCHRG_FILTER_BITS_CLEAR) | (filter << TSI_V4_EXTCHRG_FILTER_BITS_SHIFT); } #ifdef __cplusplus } #endif /* __cplusplus */ /*! @}*/ #endif /* _FSL_TSI_V4_H_ */