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Diffstat (limited to 'drivers/fsl_adc16.h')
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diff --git a/drivers/fsl_adc16.h b/drivers/fsl_adc16.h new file mode 100644 index 0000000..da0604f --- /dev/null +++ b/drivers/fsl_adc16.h @@ -0,0 +1,529 @@ +/* + * 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_ADC16_H_ +#define _FSL_ADC16_H_ + +#include "fsl_common.h" + +/*! + * @addtogroup adc16 + * @{ + */ + + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/*! @name Driver version */ +/*@{*/ +/*! @brief ADC16 driver version 2.0.0. */ +#define FSL_ADC16_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) +/*@}*/ + +/*! + * @brief Channel status flags. + */ +enum _adc16_channel_status_flags +{ + kADC16_ChannelConversionDoneFlag = ADC_SC1_COCO_MASK, /*!< Conversion done. */ +}; + +/*! + * @brief Converter status flags. + */ +enum _adc16_status_flags +{ + kADC16_ActiveFlag = ADC_SC2_ADACT_MASK, /*!< Converter is active. */ +#if defined(FSL_FEATURE_ADC16_HAS_CALIBRATION) && FSL_FEATURE_ADC16_HAS_CALIBRATION + kADC16_CalibrationFailedFlag = ADC_SC3_CALF_MASK, /*!< Calibration is failed. */ +#endif /* FSL_FEATURE_ADC16_HAS_CALIBRATION */ +}; + +#if defined(FSL_FEATURE_ADC16_HAS_MUX_SELECT) && FSL_FEATURE_ADC16_HAS_MUX_SELECT +/*! + * @brief Channel multiplexer mode for each channel. + * + * For some ADC16 channels, there are two pin selections in channel multiplexer. For example, ADC0_SE4a and ADC0_SE4b + * are the different channels that share the same channel number. + */ +typedef enum _adc_channel_mux_mode +{ + kADC16_ChannelMuxA = 0U, /*!< For channel with channel mux a. */ + kADC16_ChannelMuxB = 1U, /*!< For channel with channel mux b. */ +} adc16_channel_mux_mode_t; +#endif /* FSL_FEATURE_ADC16_HAS_MUX_SELECT */ + +/*! + * @brief Clock divider for the converter. + */ +typedef enum _adc16_clock_divider +{ + kADC16_ClockDivider1 = 0U, /*!< For divider 1 from the input clock to the module. */ + kADC16_ClockDivider2 = 1U, /*!< For divider 2 from the input clock to the module. */ + kADC16_ClockDivider4 = 2U, /*!< For divider 4 from the input clock to the module. */ + kADC16_ClockDivider8 = 3U, /*!< For divider 8 from the input clock to the module. */ +} adc16_clock_divider_t; + +/*! + *@brief Converter's resolution. + */ +typedef enum _adc16_resolution +{ + /* This group of enumeration is for internal use which is related to register setting. */ + kADC16_Resolution8or9Bit = 0U, /*!< Single End 8-bit or Differential Sample 9-bit. */ + kADC16_Resolution12or13Bit = 1U, /*!< Single End 12-bit or Differential Sample 13-bit. */ + kADC16_Resolution10or11Bit = 2U, /*!< Single End 10-bit or Differential Sample 11-bit. */ + + /* This group of enumeration is for a public user. */ + kADC16_ResolutionSE8Bit = kADC16_Resolution8or9Bit, /*!< Single End 8-bit. */ + kADC16_ResolutionSE12Bit = kADC16_Resolution12or13Bit, /*!< Single End 12-bit. */ + kADC16_ResolutionSE10Bit = kADC16_Resolution10or11Bit, /*!< Single End 10-bit. */ +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + kADC16_ResolutionDF9Bit = kADC16_Resolution8or9Bit, /*!< Differential Sample 9-bit. */ + kADC16_ResolutionDF13Bit = kADC16_Resolution12or13Bit, /*!< Differential Sample 13-bit. */ + kADC16_ResolutionDF11Bit = kADC16_Resolution10or11Bit, /*!< Differential Sample 11-bit. */ +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ + +#if defined(FSL_FEATURE_ADC16_MAX_RESOLUTION) && (FSL_FEATURE_ADC16_MAX_RESOLUTION >= 16U) + /* 16-bit is supported by default. */ + kADC16_Resolution16Bit = 3U, /*!< Single End 16-bit or Differential Sample 16-bit. */ + kADC16_ResolutionSE16Bit = kADC16_Resolution16Bit, /*!< Single End 16-bit. */ +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + kADC16_ResolutionDF16Bit = kADC16_Resolution16Bit, /*!< Differential Sample 16-bit. */ +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ +#endif /* FSL_FEATURE_ADC16_MAX_RESOLUTION >= 16U */ +} adc16_resolution_t; + +/*! + * @brief Clock source. + */ +typedef enum _adc16_clock_source +{ + kADC16_ClockSourceAlt0 = 0U, /*!< Selection 0 of the clock source. */ + kADC16_ClockSourceAlt1 = 1U, /*!< Selection 1 of the clock source. */ + kADC16_ClockSourceAlt2 = 2U, /*!< Selection 2 of the clock source. */ + kADC16_ClockSourceAlt3 = 3U, /*!< Selection 3 of the clock source. */ + + /* Chip defined clock source */ + kADC16_ClockSourceAsynchronousClock = kADC16_ClockSourceAlt3, /*!< Using internal asynchronous clock. */ +} adc16_clock_source_t; + +/*! + * @brief Long sample mode. + */ +typedef enum _adc16_long_sample_mode +{ + kADC16_LongSampleCycle24 = 0U, /*!< 20 extra ADCK cycles, 24 ADCK cycles total. */ + kADC16_LongSampleCycle16 = 1U, /*!< 12 extra ADCK cycles, 16 ADCK cycles total. */ + kADC16_LongSampleCycle10 = 2U, /*!< 6 extra ADCK cycles, 10 ADCK cycles total. */ + kADC16_LongSampleCycle6 = 3U, /*!< 2 extra ADCK cycles, 6 ADCK cycles total. */ + kADC16_LongSampleDisabled = 4U, /*!< Disable the long sample feature. */ +} adc16_long_sample_mode_t; + +/*! + * @brief Reference voltage source. + */ +typedef enum _adc16_reference_voltage_source +{ + kADC16_ReferenceVoltageSourceVref = 0U, /*!< For external pins pair of VrefH and VrefL. */ + kADC16_ReferenceVoltageSourceValt = 1U, /*!< For alternate reference pair of ValtH and ValtL. */ +} adc16_reference_voltage_source_t; + +#if defined(FSL_FEATURE_ADC16_HAS_HW_AVERAGE) && FSL_FEATURE_ADC16_HAS_HW_AVERAGE +/*! + * @brief Hardware average mode. + */ +typedef enum _adc16_hardware_average_mode +{ + kADC16_HardwareAverageCount4 = 0U, /*!< For hardware average with 4 samples. */ + kADC16_HardwareAverageCount8 = 1U, /*!< For hardware average with 8 samples. */ + kADC16_HardwareAverageCount16 = 2U, /*!< For hardware average with 16 samples. */ + kADC16_HardwareAverageCount32 = 3U, /*!< For hardware average with 32 samples. */ + kADC16_HardwareAverageDisabled = 4U, /*!< Disable the hardware average feature.*/ +} adc16_hardware_average_mode_t; +#endif /* FSL_FEATURE_ADC16_HAS_HW_AVERAGE */ + +/*! + * @brief Hardware compare mode. + */ +typedef enum _adc16_hardware_compare_mode +{ + kADC16_HardwareCompareMode0 = 0U, /*!< x < value1. */ + kADC16_HardwareCompareMode1 = 1U, /*!< x > value1. */ + kADC16_HardwareCompareMode2 = 2U, /*!< if value1 <= value2, then x < value1 || x > value2; + else, value1 > x > value2. */ + kADC16_HardwareCompareMode3 = 3U, /*!< if value1 <= value2, then value1 <= x <= value2; + else x >= value1 || x <= value2. */ +} adc16_hardware_compare_mode_t; + +#if defined(FSL_FEATURE_ADC16_HAS_PGA) && FSL_FEATURE_ADC16_HAS_PGA +/*! + * @brief PGA's Gain mode. + */ +typedef enum _adc16_pga_gain +{ + kADC16_PGAGainValueOf1 = 0U, /*!< For amplifier gain of 1. */ + kADC16_PGAGainValueOf2 = 1U, /*!< For amplifier gain of 2. */ + kADC16_PGAGainValueOf4 = 2U, /*!< For amplifier gain of 4. */ + kADC16_PGAGainValueOf8 = 3U, /*!< For amplifier gain of 8. */ + kADC16_PGAGainValueOf16 = 4U, /*!< For amplifier gain of 16. */ + kADC16_PGAGainValueOf32 = 5U, /*!< For amplifier gain of 32. */ + kADC16_PGAGainValueOf64 = 6U, /*!< For amplifier gain of 64. */ +} adc16_pga_gain_t; +#endif /* FSL_FEATURE_ADC16_HAS_PGA */ + +/*! + * @brief ADC16 converter configuration. + */ +typedef struct _adc16_config +{ + adc16_reference_voltage_source_t referenceVoltageSource; /*!< Select the reference voltage source. */ + adc16_clock_source_t clockSource; /*!< Select the input clock source to converter. */ + bool enableAsynchronousClock; /*!< Enable the asynchronous clock output. */ + adc16_clock_divider_t clockDivider; /*!< Select the divider of input clock source. */ + adc16_resolution_t resolution; /*!< Select the sample resolution mode. */ + adc16_long_sample_mode_t longSampleMode; /*!< Select the long sample mode. */ + bool enableHighSpeed; /*!< Enable the high-speed mode. */ + bool enableLowPower; /*!< Enable low power. */ + bool enableContinuousConversion; /*!< Enable continuous conversion mode. */ +} adc16_config_t; + +/*! + * @brief ADC16 Hardware comparison configuration. + */ +typedef struct _adc16_hardware_compare_config +{ + adc16_hardware_compare_mode_t hardwareCompareMode; /*!< Select the hardware compare mode. + See "adc16_hardware_compare_mode_t". */ + int16_t value1; /*!< Setting value1 for hardware compare mode. */ + int16_t value2; /*!< Setting value2 for hardware compare mode. */ +} adc16_hardware_compare_config_t; + +/*! + * @brief ADC16 channel conversion configuration. + */ +typedef struct _adc16_channel_config +{ + uint32_t channelNumber; /*!< Setting the conversion channel number. The available range is 0-31. + See channel connection information for each chip in Reference + Manual document. */ + bool enableInterruptOnConversionCompleted; /*!< Generate an interrupt request once the conversion is completed. */ +#if defined(FSL_FEATURE_ADC16_HAS_DIFF_MODE) && FSL_FEATURE_ADC16_HAS_DIFF_MODE + bool enableDifferentialConversion; /*!< Using Differential sample mode. */ +#endif /* FSL_FEATURE_ADC16_HAS_DIFF_MODE */ +} adc16_channel_config_t; + +#if defined(FSL_FEATURE_ADC16_HAS_PGA) && FSL_FEATURE_ADC16_HAS_PGA +/*! + * @brief ADC16 programmable gain amplifier configuration. + */ +typedef struct _adc16_pga_config +{ + adc16_pga_gain_t pgaGain; /*!< Setting PGA gain. */ + bool enableRunInNormalMode; /*!< Enable PGA working in normal mode, or low power mode by default. */ +#if defined(FSL_FEATURE_ADC16_HAS_PGA_CHOPPING) && FSL_FEATURE_ADC16_HAS_PGA_CHOPPING + bool disablePgaChopping; /*!< Disable the PGA chopping function. + The PGA employs chopping to remove/reduce offset and 1/f noise and offers + an offset measurement configuration that aids the offset calibration. */ +#endif /* FSL_FEATURE_ADC16_HAS_PGA_CHOPPING */ +#if defined(FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT) && FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT + bool enableRunInOffsetMeasurement; /*!< Enable the PGA working in offset measurement mode. + When this feature is enabled, the PGA disconnects itself from the external + inputs and auto-configures into offset measurement mode. With this field + set, run the ADC in the recommended settings and enable the maximum hardware + averaging to get the PGA offset number. The output is the + (PGA offset * (64+1)) for the given PGA setting. */ +#endif /* FSL_FEATURE_ADC16_HAS_PGA_OFFSET_MEASUREMENT */ +} adc16_pga_config_t; +#endif /* FSL_FEATURE_ADC16_HAS_PGA */ + +#if defined(__cplusplus) +extern "C" { +#endif + +/******************************************************************************* + * API + ******************************************************************************/ + +/*! + * @name Initialization + * @{ + */ + +/*! + * @brief Initializes the ADC16 module. + * + * @param base ADC16 peripheral base address. + * @param config Pointer to configuration structure. See "adc16_config_t". + */ +void ADC16_Init(ADC_Type *base, const adc16_config_t *config); + +/*! + * @brief De-initializes the ADC16 module. + * + * @param base ADC16 peripheral base address. + */ +void ADC16_Deinit(ADC_Type *base); + +/*! + * @brief Gets an available pre-defined settings for the converter's configuration. + * + * This function initializes the converter configuration structure with available settings. The default values are as follows. + * @code + * config->referenceVoltageSource = kADC16_ReferenceVoltageSourceVref; + * config->clockSource = kADC16_ClockSourceAsynchronousClock; + * config->enableAsynchronousClock = true; + * config->clockDivider = kADC16_ClockDivider8; + * config->resolution = kADC16_ResolutionSE12Bit; + * config->longSampleMode = kADC16_LongSampleDisabled; + * config->enableHighSpeed = false; + * config->enableLowPower = false; + * config->enableContinuousConversion = false; + * @endcode + * @param config Pointer to the configuration structure. + */ +void ADC16_GetDefaultConfig(adc16_config_t *config); + +#if defined(FSL_FEATURE_ADC16_HAS_CALIBRATION) && FSL_FEATURE_ADC16_HAS_CALIBRATION +/*! + * @brief Automates the hardware calibration. + * + * This auto calibration helps to adjust the plus/minus side gain automatically. + * Execute the calibration before using the converter. Note that the hardware trigger should be used + * during the calibration. + * + * @param base ADC16 peripheral base address. + * + * @return Execution status. + * @retval kStatus_Success Calibration is done successfully. + * @retval kStatus_Fail Calibration has failed. + */ +status_t ADC16_DoAutoCalibration(ADC_Type *base); +#endif /* FSL_FEATURE_ADC16_HAS_CALIBRATION */ + +#if defined(FSL_FEATURE_ADC16_HAS_OFFSET_CORRECTION) && FSL_FEATURE_ADC16_HAS_OFFSET_CORRECTION +/*! + * @brief Sets the offset value for the conversion result. + * + * This offset value takes effect on the conversion result. If the offset value is not zero, the reading result + * is subtracted by it. Note, the hardware calibration fills the offset value automatically. + * + * @param base ADC16 peripheral base address. + * @param value Setting offset value. + */ +static inline void ADC16_SetOffsetValue(ADC_Type *base, int16_t value) +{ + base->OFS = (uint32_t)(value); +} +#endif /* FSL_FEATURE_ADC16_HAS_OFFSET_CORRECTION */ + +/* @} */ + +/*! + * @name Advanced Features + * @{ + */ + +#if defined(FSL_FEATURE_ADC16_HAS_DMA) && FSL_FEATURE_ADC16_HAS_DMA +/*! + * @brief Enables generating the DMA trigger when the conversion is complete. + * + * @param base ADC16 peripheral base address. + * @param enable Switcher of the DMA feature. "true" means enabled, "false" means not enabled. + */ +static inline void ADC16_EnableDMA(ADC_Type *base, bool enable) +{ + if (enable) + { + base->SC2 |= ADC_SC2_DMAEN_MASK; + } + else + { + base->SC2 &= ~ADC_SC2_DMAEN_MASK; + } +} +#endif /* FSL_FEATURE_ADC16_HAS_DMA */ + +/*! + * @brief Enables the hardware trigger mode. + * + * @param base ADC16 peripheral base address. + * @param enable Switcher of the hardware trigger feature. "true" means enabled, "false" means not enabled. + */ +static inline void ADC16_EnableHardwareTrigger(ADC_Type *base, bool enable) +{ + if (enable) + { + base->SC2 |= ADC_SC2_ADTRG_MASK; + } + else + { + base->SC2 &= ~ADC_SC2_ADTRG_MASK; + } +} + +#if defined(FSL_FEATURE_ADC16_HAS_MUX_SELECT) && FSL_FEATURE_ADC16_HAS_MUX_SELECT +/*! + * @brief Sets the channel mux mode. + * + * Some sample pins share the same channel index. The channel mux mode decides which pin is used for an + * indicated channel. + * + * @param base ADC16 peripheral base address. + * @param mode Setting channel mux mode. See "adc16_channel_mux_mode_t". + */ +void ADC16_SetChannelMuxMode(ADC_Type *base, adc16_channel_mux_mode_t mode); +#endif /* FSL_FEATURE_ADC16_HAS_MUX_SELECT */ + +/*! + * @brief Configures the hardware compare mode. + * + * The hardware compare mode provides a way to process the conversion result automatically by using hardware. Only the result + * in the compare range is available. To compare the range, see "adc16_hardware_compare_mode_t" or the appopriate reference + * manual for more information. + * + * @param base ADC16 peripheral base address. + * @param config Pointer to the "adc16_hardware_compare_config_t" structure. Passing "NULL" disables the feature. + */ +void ADC16_SetHardwareCompareConfig(ADC_Type *base, const adc16_hardware_compare_config_t *config); + +#if defined(FSL_FEATURE_ADC16_HAS_HW_AVERAGE) && FSL_FEATURE_ADC16_HAS_HW_AVERAGE +/*! + * @brief Sets the hardware average mode. + * + * The hardware average mode provides a way to process the conversion result automatically by using hardware. The multiple + * conversion results are accumulated and averaged internally making them easier to read. + * + * @param base ADC16 peripheral base address. + * @param mode Setting the hardware average mode. See "adc16_hardware_average_mode_t". + */ +void ADC16_SetHardwareAverage(ADC_Type *base, adc16_hardware_average_mode_t mode); +#endif /* FSL_FEATURE_ADC16_HAS_HW_AVERAGE */ + +#if defined(FSL_FEATURE_ADC16_HAS_PGA) && FSL_FEATURE_ADC16_HAS_PGA +/*! + * @brief Configures the PGA for the converter's front end. + * + * @param base ADC16 peripheral base address. + * @param config Pointer to the "adc16_pga_config_t" structure. Passing "NULL" disables the feature. + */ +void ADC16_SetPGAConfig(ADC_Type *base, const adc16_pga_config_t *config); +#endif /* FSL_FEATURE_ADC16_HAS_PGA */ + +/*! + * @brief Gets the status flags of the converter. + * + * @param base ADC16 peripheral base address. + * + * @return Flags' mask if indicated flags are asserted. See "_adc16_status_flags". + */ +uint32_t ADC16_GetStatusFlags(ADC_Type *base); + +/*! + * @brief Clears the status flags of the converter. + * + * @param base ADC16 peripheral base address. + * @param mask Mask value for the cleared flags. See "_adc16_status_flags". + */ +void ADC16_ClearStatusFlags(ADC_Type *base, uint32_t mask); + +/* @} */ + +/*! + * @name Conversion Channel + * @{ + */ + +/*! + * @brief Configures the conversion channel. + * + * This operation triggers the conversion when in software trigger mode. When in hardware trigger mode, this API + * configures the channel while the external trigger source helps to trigger the conversion. + * + * Note that the "Channel Group" has a detailed description. + * To allow sequential conversions of the ADC to be triggered by internal peripherals, the ADC has more than one + * group of status and control registers, one for each conversion. The channel group parameter indicates which group of + * registers are used, for example, channel group 0 is for Group A registers and channel group 1 is for Group B registers. The + * channel groups are used in a "ping-pong" approach to control the ADC operation. At any point, only one of + * the channel groups is actively controlling ADC conversions. The channel group 0 is used for both software and hardware + * trigger modes. Channel group 1 and greater indicates multiple channel group registers for + * use only in hardware trigger mode. See the chip configuration information in the appropriate MCU reference manual for the + * number of SC1n registers (channel groups) specific to this device. Channel group 1 or greater are not used + * for software trigger operation. Therefore, writing to these channel groups does not initiate a new conversion. + * Updating the channel group 0 while a different channel group is actively controlling a conversion is allowed and + * vice versa. Writing any of the channel group registers while that specific channel group is actively controlling a + * conversion aborts the current conversion. + * + * @param base ADC16 peripheral base address. + * @param channelGroup Channel group index. + * @param config Pointer to the "adc16_channel_config_t" structure for the conversion channel. + */ +void ADC16_SetChannelConfig(ADC_Type *base, uint32_t channelGroup, const adc16_channel_config_t *config); + +/*! + * @brief Gets the conversion value. + * + * @param base ADC16 peripheral base address. + * @param channelGroup Channel group index. + * + * @return Conversion value. + */ +static inline uint32_t ADC16_GetChannelConversionValue(ADC_Type *base, uint32_t channelGroup) +{ + assert(channelGroup < ADC_R_COUNT); + + return base->R[channelGroup]; +} + +/*! + * @brief Gets the status flags of channel. + * + * @param base ADC16 peripheral base address. + * @param channelGroup Channel group index. + * + * @return Flags' mask if indicated flags are asserted. See "_adc16_channel_status_flags". + */ +uint32_t ADC16_GetChannelStatusFlags(ADC_Type *base, uint32_t channelGroup); + +/* @} */ + +#if defined(__cplusplus) +} +#endif +/*! + * @} + */ +#endif /* _FSL_ADC16_H_ */ |