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targets/TARGET_Maxim/TARGET_MAX32625/mxc/adc.h@178:c26431f84b0d, 2017-11-09 (annotated)

Committer:
amithy
Date:
Thu Nov 09 22:14:37 2017 +0000
Revision:
178:c26431f84b0d
Parent:
150:02e0a0aed4ec 
test export

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<> 150:02e0a0aed4ec 1 /**
<> 150:02e0a0aed4ec 2 * @file adc.h
<> 150:02e0a0aed4ec 3 * @brief Analog to Digital Converter function prototypes and data types.
<> 150:02e0a0aed4ec 4 */
<> 150:02e0a0aed4ec 5
<> 150:02e0a0aed4ec 6 /* ****************************************************************************
<> 150:02e0a0aed4ec 7 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
<> 150:02e0a0aed4ec 8 *
<> 150:02e0a0aed4ec 9 * Permission is hereby granted, free of charge, to any person obtaining a
<> 150:02e0a0aed4ec 10 * copy of this software and associated documentation files (the "Software"),
<> 150:02e0a0aed4ec 11 * to deal in the Software without restriction, including without limitation
<> 150:02e0a0aed4ec 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
<> 150:02e0a0aed4ec 13 * and/or sell copies of the Software, and to permit persons to whom the
<> 150:02e0a0aed4ec 14 * Software is furnished to do so, subject to the following conditions:
<> 150:02e0a0aed4ec 15 *
<> 150:02e0a0aed4ec 16 * The above copyright notice and this permission notice shall be included
<> 150:02e0a0aed4ec 17 * in all copies or substantial portions of the Software.
<> 150:02e0a0aed4ec 18 *
<> 150:02e0a0aed4ec 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
<> 150:02e0a0aed4ec 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
<> 150:02e0a0aed4ec 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
<> 150:02e0a0aed4ec 22 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
<> 150:02e0a0aed4ec 23 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
<> 150:02e0a0aed4ec 24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
<> 150:02e0a0aed4ec 25 * OTHER DEALINGS IN THE SOFTWARE.
<> 150:02e0a0aed4ec 26 *
<> 150:02e0a0aed4ec 27 * Except as contained in this notice, the name of Maxim Integrated
<> 150:02e0a0aed4ec 28 * Products, Inc. shall not be used except as stated in the Maxim Integrated
<> 150:02e0a0aed4ec 29 * Products, Inc. Branding Policy.
<> 150:02e0a0aed4ec 30 *
<> 150:02e0a0aed4ec 31 * The mere transfer of this software does not imply any licenses
<> 150:02e0a0aed4ec 32 * of trade secrets, proprietary technology, copyrights, patents,
<> 150:02e0a0aed4ec 33 * trademarks, maskwork rights, or any other form of intellectual
<> 150:02e0a0aed4ec 34 * property whatsoever. Maxim Integrated Products, Inc. retains all
<> 150:02e0a0aed4ec 35 * ownership rights.
<> 150:02e0a0aed4ec 36 *
<> 150:02e0a0aed4ec 37 * $Date: 2016-08-04 16:21:09 -0500 (Thu, 04 Aug 2016) $
<> 150:02e0a0aed4ec 38 * $Revision: 23947 $
<> 150:02e0a0aed4ec 39 *
<> 150:02e0a0aed4ec 40 *************************************************************************** */
<> 150:02e0a0aed4ec 41
<> 150:02e0a0aed4ec 42 /* Define to prevent redundant inclusion */
<> 150:02e0a0aed4ec 43 #ifndef _ADC_H
<> 150:02e0a0aed4ec 44 #define _ADC_H
<> 150:02e0a0aed4ec 45
<> 150:02e0a0aed4ec 46 /* **** Includes **** */
<> 150:02e0a0aed4ec 47 #include <stdint.h>
<> 150:02e0a0aed4ec 48 #include "adc_regs.h"
<> 150:02e0a0aed4ec 49
<> 150:02e0a0aed4ec 50 #ifdef __cplusplus
<> 150:02e0a0aed4ec 51 extern "C" {
<> 150:02e0a0aed4ec 52 #endif
<> 150:02e0a0aed4ec 53
<> 150:02e0a0aed4ec 54 /* Doxy group definition for this peripheral module */
<> 150:02e0a0aed4ec 55
<> 150:02e0a0aed4ec 56 /**
<> 150:02e0a0aed4ec 57 * @defgroup adc Analog to Digital Converter (ADC)
<> 150:02e0a0aed4ec 58 * @ingroup periphlibs
<> 150:02e0a0aed4ec 59 * @{
<> 150:02e0a0aed4ec 60 */
<> 150:02e0a0aed4ec 61
<> 150:02e0a0aed4ec 62 /* **** Definitions **** */
<> 150:02e0a0aed4ec 63
<> 150:02e0a0aed4ec 64 /**
<> 150:02e0a0aed4ec 65 * Enumeration type for ADC Channel Selection. See \ref ADC_CHSEL_values "ADC Channel Select Values" for additional information.
<> 150:02e0a0aed4ec 66 */
<> 150:02e0a0aed4ec 67 typedef enum {
<> 150:02e0a0aed4ec 68 ADC_CH_0 = MXC_V_ADC_CTRL_ADC_CHSEL_AIN0, /**< Channel 0 Select */
<> 150:02e0a0aed4ec 69 ADC_CH_1 = MXC_V_ADC_CTRL_ADC_CHSEL_AIN1, /**< Channel 1 Select */
<> 150:02e0a0aed4ec 70 ADC_CH_2 = MXC_V_ADC_CTRL_ADC_CHSEL_AIN2, /**< Channel 2 Select */
<> 150:02e0a0aed4ec 71 ADC_CH_3 = MXC_V_ADC_CTRL_ADC_CHSEL_AIN3, /**< Channel 3 Select */
<> 150:02e0a0aed4ec 72 ADC_CH_0_DIV_5 = MXC_V_ADC_CTRL_ADC_CHSEL_AIN0_DIV_5, /**< Channel 0 divided by 5 */
<> 150:02e0a0aed4ec 73 ADC_CH_1_DIV_5 = MXC_V_ADC_CTRL_ADC_CHSEL_AIN1_DIV_5, /**< Channel 1 divided by 5 */
<> 150:02e0a0aed4ec 74 ADC_CH_VDDB_DIV_4 = MXC_V_ADC_CTRL_ADC_CHSEL_VDDB_DIV_4, /**< VDDB divided by 4 */
<> 150:02e0a0aed4ec 75 ADC_CH_VDD18 = MXC_V_ADC_CTRL_ADC_CHSEL_VDD18, /**< VDD18 input select */
<> 150:02e0a0aed4ec 76 ADC_CH_VDD12 = MXC_V_ADC_CTRL_ADC_CHSEL_VDD12, /**< VDD12 input select */
<> 150:02e0a0aed4ec 77 ADC_CH_VRTC_DIV_2 = MXC_V_ADC_CTRL_ADC_CHSEL_VRTC_DIV_2, /**< VRTC divided by 2 */
<> 150:02e0a0aed4ec 78 ADC_CH_TMON = MXC_V_ADC_CTRL_ADC_CHSEL_TMON, /**< TMON input select */
<> 150:02e0a0aed4ec 79 #if (MXC_ADC_REV > 0)
<> 150:02e0a0aed4ec 80 ADC_CH_VDDIO_DIV_4 = MXC_V_ADC_CTRL_ADC_CHSEL_VDDIO_DIV_4, /**< VDDIO divided by 4 select */
<> 150:02e0a0aed4ec 81 ADC_CH_VDDIOH_DIV_4 = MXC_V_ADC_CTRL_ADC_CHSEL_VDDIOH_DIV_4, /**< VDDIOH divided by 4 select */
<> 150:02e0a0aed4ec 82 #endif
<> 150:02e0a0aed4ec 83 ADC_CH_MAX /**< Max enum value for channel selection */
<> 150:02e0a0aed4ec 84 } mxc_adc_chsel_t;
<> 150:02e0a0aed4ec 85
<> 150:02e0a0aed4ec 86 /**
<> 150:02e0a0aed4ec 87 * Enumeration type for the ADC limit register to set
<> 150:02e0a0aed4ec 88 */
<> 150:02e0a0aed4ec 89 typedef enum {
<> 150:02e0a0aed4ec 90 ADC_LIMIT_0 = 0, /**< ADC Limit Register 0 */
<> 150:02e0a0aed4ec 91 ADC_LIMIT_1 = 1, /**< ADC Limit Register 1 */
<> 150:02e0a0aed4ec 92 ADC_LIMIT_2 = 2, /**< ADC Limit Register 2 */
<> 150:02e0a0aed4ec 93 ADC_LIMIT_3 = 3, /**< ADC Limit Register 3 */
<> 150:02e0a0aed4ec 94 ADC_LIMIT_MAX /**< Number of Limit registers */
<> 150:02e0a0aed4ec 95 } mxc_adc_limitsel_t;
<> 150:02e0a0aed4ec 96
<> 150:02e0a0aed4ec 97 ///@cond
<> 150:02e0a0aed4ec 98 /**
<> 150:02e0a0aed4ec 99 * Mask for all Interrupt Flag Fields
<> 150:02e0a0aed4ec 100 */
<> 150:02e0a0aed4ec 101 #define ADC_IF_MASK (0xffffffffUL << MXC_F_ADC_INTR_ADC_DONE_IF_POS)
<> 150:02e0a0aed4ec 102
<> 150:02e0a0aed4ec 103 /**
<> 150:02e0a0aed4ec 104 * Mask for all Interrupt Enable Fields
<> 150:02e0a0aed4ec 105 */
<> 150:02e0a0aed4ec 106 #define ADC_IE_MASK (0xffffffffUL >> MXC_F_ADC_INTR_ADC_DONE_IF_POS)
<> 150:02e0a0aed4ec 107 ///@endcond
<> 150:02e0a0aed4ec 108
<> 150:02e0a0aed4ec 109 /* **** Function Prototypes **** */
<> 150:02e0a0aed4ec 110
<> 150:02e0a0aed4ec 111 /**
<> 150:02e0a0aed4ec 112 * @brief Initialize the ADC hardware
<> 150:02e0a0aed4ec 113 *
<> 150:02e0a0aed4ec 114 * @return #E_NO_ERROR if successful
<> 150:02e0a0aed4ec 115 */
<> 150:02e0a0aed4ec 116 int ADC_Init(void);
<> 150:02e0a0aed4ec 117
<> 150:02e0a0aed4ec 118 /**
<> 150:02e0a0aed4ec 119 * @brief Start ADC conversion on the selected channel
<> 150:02e0a0aed4ec 120 *
<> 150:02e0a0aed4ec 121 * @param channel Channel select from #mxc_adc_chsel_t
<> 150:02e0a0aed4ec 122 * @param adc_scale Enable the ADC input scaling mode if non-zero
<> 150:02e0a0aed4ec 123 * @param bypass Bypass input buffer stage if non-zero
<> 150:02e0a0aed4ec 124 */
<> 150:02e0a0aed4ec 125 void ADC_StartConvert(mxc_adc_chsel_t channel, unsigned int adc_scale, unsigned int bypass);
<> 150:02e0a0aed4ec 126
<> 150:02e0a0aed4ec 127 /**
<> 150:02e0a0aed4ec 128 * @brief Gets the result from the previous ADC conversion
<> 150:02e0a0aed4ec 129 *
<> 150:02e0a0aed4ec 130 * @param outdata Pointer to store the ADC data conversion
<> 150:02e0a0aed4ec 131 * result.
<> 150:02e0a0aed4ec 132 * @return #E_OVERFLOW ADC overflow error
<> 150:02e0a0aed4ec 133 * @return #E_NO_ERROR Data returned in outdata parameter
<> 150:02e0a0aed4ec 134 */
<> 150:02e0a0aed4ec 135 int ADC_GetData(uint16_t *outdata);
<> 150:02e0a0aed4ec 136
<> 150:02e0a0aed4ec 137 /**
<> 150:02e0a0aed4ec 138 * @brief Set the data limits for an ADC channel monitor
<> 150:02e0a0aed4ec 139 *
<> 150:02e0a0aed4ec 140 * @param unit Which data limit unit to configure
<> 150:02e0a0aed4ec 141 * @param channel Channel select from mxc_adc_chsel_t
<> 150:02e0a0aed4ec 142 * @param low_enable Enable the lower limit on this monitor
<> 150:02e0a0aed4ec 143 * @param low_limit Value for lower limit monitor
<> 150:02e0a0aed4ec 144 * @param high_enable Enable the upper limit on this monitor
<> 150:02e0a0aed4ec 145 * @param high_limit Value for upper limit monitor
<> 150:02e0a0aed4ec 146 *
<> 150:02e0a0aed4ec 147 * @return #E_BAD_PARAM ADC limit or channel greater than supported
<> 150:02e0a0aed4ec 148 * @return #E_NO_ERROR ADC limit set successfully
<> 150:02e0a0aed4ec 149 */
<> 150:02e0a0aed4ec 150 int ADC_SetLimit(mxc_adc_limitsel_t unit, mxc_adc_chsel_t channel,
<> 150:02e0a0aed4ec 151 unsigned int low_enable, unsigned int low_limit,
<> 150:02e0a0aed4ec 152 unsigned int high_enable, unsigned int high_limit);
<> 150:02e0a0aed4ec 153
<> 150:02e0a0aed4ec 154 /**
<> 150:02e0a0aed4ec 155 * @brief Get interrupt flags
<> 150:02e0a0aed4ec 156 *
<> 150:02e0a0aed4ec 157 * @return ADC Interrupt flags bit mask. See the @ref ADC_INTR_IF_Register
<> 150:02e0a0aed4ec 158 * "ADC_INTR Register" for the interrupt flag masks.
<> 150:02e0a0aed4ec 159 */
<> 150:02e0a0aed4ec 160 __STATIC_INLINE uint32_t ADC_GetFlags()
<> 150:02e0a0aed4ec 161 {
<> 150:02e0a0aed4ec 162 return (MXC_ADC->intr & ADC_IF_MASK);
<> 150:02e0a0aed4ec 163 }
<> 150:02e0a0aed4ec 164
<> 150:02e0a0aed4ec 165 /**
<> 150:02e0a0aed4ec 166 * @brief Clear interrupt flag(s) using the mask parameter. All bits set in
<> 150:02e0a0aed4ec 167 * the parameter will be cleared.
<> 150:02e0a0aed4ec 168 *
<> 150:02e0a0aed4ec 169 * @param mask Interrupt flags to clear. See the @ref ADC_INTR_IF_Register
<> 150:02e0a0aed4ec 170 * "ADC_INTR Register" for the interrupt flag masks.
<> 150:02e0a0aed4ec 171 */
<> 150:02e0a0aed4ec 172 __STATIC_INLINE void ADC_ClearFlags(uint32_t mask)
<> 150:02e0a0aed4ec 173 {
<> 150:02e0a0aed4ec 174 MXC_ADC->intr = ((MXC_ADC->intr & ADC_IF_MASK) | mask);
<> 150:02e0a0aed4ec 175 }
<> 150:02e0a0aed4ec 176
<> 150:02e0a0aed4ec 177 /**
<> 150:02e0a0aed4ec 178 * @brief Get the Status of the ADC
<> 150:02e0a0aed4ec 179 *
<> 150:02e0a0aed4ec 180 * @return ADC status register. See @ref ADC_STATUS_Register "ADC_STATUS
<> 150:02e0a0aed4ec 181 * Register" for details.
<> 150:02e0a0aed4ec 182 */
<> 150:02e0a0aed4ec 183 __STATIC_INLINE uint32_t ADC_GetStatus()
<> 150:02e0a0aed4ec 184 {
<> 150:02e0a0aed4ec 185 return (MXC_ADC->status);
<> 150:02e0a0aed4ec 186 }
<> 150:02e0a0aed4ec 187
<> 150:02e0a0aed4ec 188 /**
<> 150:02e0a0aed4ec 189 * @brief Enables the ADC interrupts specified by the mask parameter
<> 150:02e0a0aed4ec 190 *
<> 150:02e0a0aed4ec 191 * @param mask ADC interrupts to enable. See @ref ADC_INTR_IE_Register
<> 150:02e0a0aed4ec 192 * "ADC_INTR Register" for the interrupt enable bit masks.
<> 150:02e0a0aed4ec 193 */
<> 150:02e0a0aed4ec 194 __STATIC_INLINE void ADC_EnableINT(uint32_t mask)
<> 150:02e0a0aed4ec 195 {
<> 150:02e0a0aed4ec 196 MXC_ADC->intr = ((MXC_ADC->intr & ADC_IE_MASK) | mask);
<> 150:02e0a0aed4ec 197 }
<> 150:02e0a0aed4ec 198
<> 150:02e0a0aed4ec 199 /**
<> 150:02e0a0aed4ec 200 * @brief Disable ADC interrupts based on mask
<> 150:02e0a0aed4ec 201 *
<> 150:02e0a0aed4ec 202 * @param mask ADC interrupts to disable. See @ref ADC_INTR_IE_Register
<> 150:02e0a0aed4ec 203 * "ADC_INTR Register" for the interrupt enable bit masks.
<> 150:02e0a0aed4ec 204 */
<> 150:02e0a0aed4ec 205 __STATIC_INLINE void ADC_DisableINT(uint32_t mask)
<> 150:02e0a0aed4ec 206 {
<> 150:02e0a0aed4ec 207 MXC_ADC->intr = ((MXC_ADC->intr & ADC_IE_MASK) & ~mask);
<> 150:02e0a0aed4ec 208 }
<> 150:02e0a0aed4ec 209
<> 150:02e0a0aed4ec 210 /**@} end of group adc */
<> 150:02e0a0aed4ec 211
<> 150:02e0a0aed4ec 212 #ifdef __cplusplus
<> 150:02e0a0aed4ec 213 }
<> 150:02e0a0aed4ec 214 #endif
<> 150:02e0a0aed4ec 215
<> 150:02e0a0aed4ec 216 #endif /* _ADC_H */