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1032 lines
28 KiB
C
1032 lines
28 KiB
C
/*! \file *********************************************************************
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*
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* \brief API for SAM3 Analog-to-Digital Converter (ADC/ADC12B) controller.
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*
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* ----------------------------------------------------------------------------
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* SAM Software Package License
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* ----------------------------------------------------------------------------
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* Copyright (c) 2011, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* - Compiler: IAR EWARM and CodeSourcery GCC for ARM
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* - Supported devices: All SAM devices with a Analog-to-Digital Converter can be used.
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* - AppNote:
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*
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* \author Atmel Corporation: http://www.atmel.com \n
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* Support and FAQ: http://support.atmel.com/
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*
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*******************************************************************************/
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#ifndef ADC_H_INCLUDED
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#define ADC_H_INCLUDED
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#include "../chip.h"
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#if SAM3U
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#define ADC_12B
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#endif
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#define ADC_FREQ_MAX 20000000
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#define ADC_FREQ_MIN 1000000
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#define ADC_STARTUP_NORM 40
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#define ADC_STARTUP_FAST 12
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/* Definitions for ADC resolution */
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#if SAM3S || SAM3XA
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typedef enum _adc_resolution_t {
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ADC_10_BITS = ADC_MR_LOWRES_BITS_10, /* ADC 10-bit resolution */
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ADC_12_BITS = ADC_MR_LOWRES_BITS_12 /* ADC 12-bit resolution */
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} adc_resolution_t;
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#elif SAM3N
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typedef enum _adc_resolution_t {
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ADC_8_BITS = ADC_MR_LOWRES_BITS_8, /* ADC 8-bit resolution */
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ADC_10_BITS = ADC_MR_LOWRES_BITS_10 /* ADC 10-bit resolution */
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} adc_resolution_t;
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#elif SAM3U
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#ifdef ADC_12B
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typedef enum _adc_resolution_t {
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ADC_10_BITS = ADC12B_MR_LOWRES_BITS_10, /* ADC 10-bit resolution */
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ADC_12_BITS = ADC12B_MR_LOWRES_BITS_12 /* ADC 12-bit resolution */
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} adc_resolution_t;
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#else
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typedef enum _adc_resolution_t {
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ADC_8_BITS = ADC_MR_LOWRES_BITS_8, /* ADC 8-bit resolution */
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ADC_10_BITS = ADC_MR_LOWRES_BITS_10 /* ADC 10-bit resolution */
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} adc_resolution_t;
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#endif
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#endif
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/* Definitions for ADC trigger */
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typedef enum _adc_trigger_t {
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ADC_TRIG_SW = ADC_MR_TRGEN_DIS, /* Starting a conversion is only possible by software. */
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ADC_TRIG_EXT = ((ADC_MR_TRGSEL_ADC_TRIG0 <<ADC_MR_TRGSEL_Pos) & ADC_MR_TRGSEL_Msk) | ADC_MR_TRGEN, /* External trigger */
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ADC_TRIG_TIO_CH_0 = (ADC_MR_TRGSEL_ADC_TRIG1 & ADC_MR_TRGSEL_Msk) | ADC_MR_TRGEN, /* TIO Output of the Timer Counter Channel 0 */
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ADC_TRIG_TIO_CH_1 = (ADC_MR_TRGSEL_ADC_TRIG2 & ADC_MR_TRGSEL_Msk) | ADC_MR_TRGEN, /* TIO Output of the Timer Counter Channel 1 */
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ADC_TRIG_TIO_CH_2 = (ADC_MR_TRGSEL_ADC_TRIG3 & ADC_MR_TRGSEL_Msk) | ADC_MR_TRGEN, /* TIO Output of the Timer Counter Channel 2 */
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#if SAM3S || SAM3XA || SAM3U
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ADC_TRIG_PWM_EVENT_LINE_0 = (ADC_MR_TRGSEL_ADC_TRIG4 & ADC_MR_TRGSEL_Msk) | ADC_MR_TRGEN, /* PWM Event Line 0 */
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ADC_TRIG_PWM_EVENT_LINE_1 = (ADC_MR_TRGSEL_ADC_TRIG5 & ADC_MR_TRGSEL_Msk) | ADC_MR_TRGEN /* PWM Event Line 1 */
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#endif
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} adc_trigger_t;
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#if SAM3S || SAM3N || SAM3XA
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/* Definitions for ADC channel number */
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typedef enum _adc_channel_num_t {
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ADC_CHANNEL_0 = 0,
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ADC_CHANNEL_1 = 1,
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ADC_CHANNEL_2 = 2,
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ADC_CHANNEL_3 = 3,
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ADC_CHANNEL_4 = 4,
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ADC_CHANNEL_5 = 5,
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ADC_CHANNEL_6 = 6,
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ADC_CHANNEL_7 = 7,
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ADC_CHANNEL_8 = 8,
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ADC_CHANNEL_9 = 9,
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ADC_CHANNEL_10 = 10,
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ADC_CHANNEL_11 = 11,
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ADC_CHANNEL_12 = 12,
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ADC_CHANNEL_13 = 13,
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ADC_CHANNEL_14 = 14,
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ADC_TEMPERATURE_SENSOR = 15,
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ADC_ALL_CHANNEL
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} adc_channel_num_t;
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#elif SAM3U
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/* Definitions for ADC channel number */
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typedef enum _adc_channel_num_t {
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ADC_CHANNEL_0 = 0,
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ADC_CHANNEL_1 = 1,
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ADC_CHANNEL_2 = 2,
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ADC_CHANNEL_3 = 3,
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ADC_CHANNEL_4 = 4,
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ADC_CHANNEL_5 = 5,
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ADC_CHANNEL_6 = 6,
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ADC_CHANNEL_7 = 7,
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ADC_ALL_CHANNEL
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} adc_channel_num_t;
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#endif
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typedef enum{
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ADC_GAINVALUE_0 = 0,
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ADC_GAINVALUE_1 = 1,
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ADC_GAINVALUE_2 = 2,
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ADC_GAINVALUE_3 = 3
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}adc_gainvalue_t;
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#if SAM3S || SAM3XA
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typedef enum{
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ADC_SETTLING_TIME_0 = ADC_MR_SETTLING_AST3,
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ADC_SETTLING_TIME_1 = ADC_MR_SETTLING_AST5,
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ADC_SETTLING_TIME_2 = ADC_MR_SETTLING_AST9,
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ADC_SETTLING_TIME_3 = ADC_MR_SETTLING_AST17
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}adc_settling_time_t;
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#endif
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/// @cond 0
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/**INDENT-OFF**/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**INDENT-ON**/
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/// @endcond
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Initializes the given ADC with the specified ADC clock and startup time.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param dw_mck Main clock of the device (value in Hz).
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* \param dw_adc_clock Analog-to-Digital conversion clock (value in Hz).
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* \param uc_startup ADC start up time. Please refer to the product datasheet for details.
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*
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* \retval 0 The initialization operation succeeds.
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* \retval others The initialization operation fails.
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*/
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extern uint32_t adc_init(Adc *p_adc, uint32_t ul_mck, uint32_t ul_adc_clock, uint8_t uc_startup);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Configures conversion resolution.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param resolution ADC resolution.
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*
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*/
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extern void adc_set_resolution(Adc *p_adc, adc_resolution_t resolution);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Configures conversion trigger and free run mode.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param trigger Conversion trigger.
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* \param uc_freerun ADC_MR_FREERUN_ON enables freerun mode
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* ADC_MR_FREERUN_OFF disables freerun mode
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*
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*/
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extern void adc_configure_trigger(Adc *p_adc, adc_trigger_t trigger, uint8_t uc_freerun);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Configures ADC power saving mode.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param uc_sleep ADC_MR_SLEEP_NORMAL keeps the ADC Core and reference voltage circuitry ON between conversions
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* ADC_MR_SLEEP_SLEEP keeps the ADC Core and reference voltage circuitry OFF between conversions
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* \param uc_fwup ADC_MR_FWUP_OFF configures sleep mode as uc_sleep setting
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* ADC_MR_FWUP_ON keeps voltage reference ON and ADC Core OFF between conversions
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*
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*/
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extern void adc_configure_power_save(Adc *p_adc, uint8_t uc_sleep, uint8_t uc_fwup);
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/**
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* \brief Configures conversion sequence.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param ch_list Channel sequence list.
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* \param number Number of channels in the list.
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*
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*/
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extern void adc_configure_sequence(Adc *p_adc, adc_channel_num_t ch_list[], uint8_t uc_num);
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#endif
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#if SAM3S || SAM3XA
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/**
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* \brief Configures ADC timing.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param uc_tracking ADC tracking time = uc_tracking / ADC clock.
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* \param uc_settling Analog settling time = (uc_settling + 1) / ADC clock.
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* \param uc_transfer Data transfer time = (uc_transfer * 2 + 3) / ADC clock.
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*
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*/
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extern void adc_configure_timing(Adc *p_adc, uint8_t uc_tracking, adc_settling_time_t settling, uint8_t uc_transfer);
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#elif SAM3N
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/**
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* \brief Configures ADC timing.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param uc_tracking ADC tracking time = uc_tracking / ADC clock.
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*
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*/
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extern void adc_configure_timing(Adc *p_adc, uint8_t uc_tracking);
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#endif
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#if SAM3S || SAM3XA
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/**
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* \brief enable analog change.
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*
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* note it allows different analog settings for each channel,
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*
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* \param pAdc Pointer to an Adc instance.
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*/
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extern void adc_enable_anch( Adc *pAdc );
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#endif
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#if SAM3S || SAM3XA
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/**
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* \brief disable analog change.
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*
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* note DIFF0, GAIN0 and OFF0 are used for all channels.
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*
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* \param pAdc Pointer to an Adc instance.
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*/
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extern void adc_disable_anch( Adc *pAdc );
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Starts analog-to-digital conversion.
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*
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* \note If one of the hardware event is selected as ADC trigger, this function can NOT start analog to digital conversion.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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*/
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extern void adc_start(Adc *p_adc);
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/**
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* \brief Stop analog-to-digital conversion.
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* \param p_adc Pointer to an ADC instance.
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*
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*/
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extern void adc_stop(Adc *p_adc);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Enables the specified ADC channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param adc_ch ADC channel number.
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*
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*/
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extern void adc_enable_channel(Adc *p_adc, adc_channel_num_t adc_ch);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Disables the specified ADC channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param adc_ch ADC channel number.
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*
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*/
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extern void adc_disable_channel(Adc *p_adc, adc_channel_num_t adc_ch);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Reads the ADC channel status.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param adc_ch ADC channel number.
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*
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* \retval 1 means the specified channel is enabled.
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* 0 means the specified channel is disabled.
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*/
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extern uint32_t adc_get_status(Adc *p_adc, adc_channel_num_t adc_ch);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Reads the ADC result data of the specified channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param adc_ch ADC channel number.
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*
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* \retval ADC data of the specified channel.
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*/
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extern uint32_t adc_get_value(Adc *p_adc, adc_channel_num_t adc_ch);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Reads the last ADC result data.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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* \retval ADC data.
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*/
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extern uint32_t adc_get_latest_value(Adc *p_adc);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Enables TAG option so that the number of the last converted channel can be indicated.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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*/
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extern void adc_enable_tag(Adc *p_adc);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Disables TAG option.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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*/
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extern void adc_disable_tag(Adc *p_adc);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Indicates the last converted channel.
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*
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* \note If TAG option is NOT enabled before, an incorrect channel number is returned.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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* \retval The last converted channel number.
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*/
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extern adc_channel_num_t adc_get_tag(Adc *p_adc);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Enables conversion sequencer.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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*/
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extern void adc_start_sequencer(Adc *p_adc);
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/**
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* \brief Disables conversion sequencer.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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*/
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extern void adc_stop_sequencer(Adc *p_adc);
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/**
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* \brief Configures comparsion mode.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param mode ADC comparsion mode.
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*
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*/
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extern void adc_set_comparison_mode(Adc *p_adc, uint8_t uc_mode);
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/**
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* \brief get comparsion mode.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param mode ADC comparsion mode.
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*
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* \retval compare mode value.
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*/
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extern uint32_t adc_get_comparison_mode(Adc *p_adc);
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/**
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* \brief Configures ADC compare window.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param w_low_threshold Low threshold of compare window.
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* \param w_high_threshold High threshold of compare window.
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*
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*/
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extern void adc_set_comparsion_window(Adc *p_adc, uint16_t us_low_threshold, uint16_t us_high_threshold);
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/**
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* \brief Configures comparison selected channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param channel Comparison selected channel.
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*
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*/
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extern void adc_set_comparison_channel(Adc *p_adc, adc_channel_num_t channel);
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#endif
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#if SAM3S || SAM3XA
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/**
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* \brief Enables differential input for the specified channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param channel Channel number.
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*
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*/
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extern void adc_enable_differential_input(Adc *p_adc, adc_channel_num_t channel);
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/**
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* \brief Disables differential input for the specified channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param channel Channel number.
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*
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*/
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extern void adc_disable_differential_input(Adc *p_adc, adc_channel_num_t channel);
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/**
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* \brief Enables analog signal offset for the specified channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param channel Channel number.
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*
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*/
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extern void adc_enable_input_offset(Adc *p_adc, adc_channel_num_t channel);
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/**
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* \brief Disables analog signal offset for the specified channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param channel Channel number.
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*
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*/
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extern void adc_disable_input_offset(Adc *p_adc, adc_channel_num_t channel);
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/**
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* \brief Configures input gain for the specified channel.
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*
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* \param p_adc Pointer to an ADC instance.
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* \param channel Channel number.
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* \param gain Gain value for the input.
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*
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*/
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extern void adc_set_input_gain(Adc *p_adc, adc_channel_num_t channel, adc_gainvalue_t uc_gain);
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#endif
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#if SAM3S8 || SAM3SD8
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/**
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* \brief set adc auto calibration mode.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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*/
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extern void adc_set_calibmode(Adc *p_adc);
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#endif
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#if SAM3S || SAM3N || SAM3XA
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/**
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* \brief Returns the actual ADC clock.
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*
|
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* \param p_adc Pointer to an ADC instance.
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* \param ul_mck Main clock of the device (value in Hz).
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|
*
|
|
* \retval 0 The actual ADC clock (value in Hz).
|
|
*/
|
|
extern uint32_t adc_get_actual_adc_clock(Adc *p_adc, uint32_t ul_mck);
|
|
#endif
|
|
|
|
#if SAM3S || SAM3N || SAM3XA
|
|
/**
|
|
* \brief Enables ADC interrupt(s).
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_source Interrupt(s) to be enabled.
|
|
*
|
|
*/
|
|
extern void adc_enable_interrupt(Adc *p_adc, uint32_t ul_source);
|
|
|
|
/**
|
|
* \brief Disables ADC interrupt(s).
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_source Interrupt(s) to be disabled.
|
|
*
|
|
*/
|
|
extern void adc_disable_interrupt(Adc *p_adc, uint32_t ul_source);
|
|
|
|
/**
|
|
* \brief Reads ADC interrupt status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval ADC interrupt status.
|
|
*/
|
|
extern uint32_t adc_get_interrupt_status(Adc *p_adc);
|
|
|
|
/** \brief Read ADC interrupt mask.
|
|
*
|
|
* \param p_uart pointer to a UART instance.
|
|
*
|
|
* \return The interrupt mask value.
|
|
*/
|
|
extern uint32_t adc_get_interrupt_mask(Adc *p_adc);
|
|
#endif
|
|
|
|
#if SAM3S || SAM3N || SAM3XA
|
|
/**
|
|
* \brief Reads overrun status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval ADC overrun status.
|
|
*/
|
|
extern uint32_t adc_check_ovr(Adc *p_adc,adc_channel_num_t adc_ch);
|
|
#endif
|
|
|
|
#if SAM3S || SAM3XA
|
|
/**
|
|
* \brief Adapts performance versus power consumption.
|
|
*
|
|
* \note Please refer to ADC Characteristics in the product datasheet for the details.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param ibctl ADC Bias current control.
|
|
*
|
|
*/
|
|
extern void adc_set_bias_current(Adc *p_adc, uint8_t uc_ibctl);
|
|
#endif
|
|
|
|
#if SAM3S || SAM3XA
|
|
/**
|
|
* \brief turn on temperature sensor.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
*/
|
|
extern void adc_enable_ts(Adc *p_adc);
|
|
|
|
/**
|
|
* \brief turn off temperature sensor.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
*/
|
|
extern void adc_disable_ts(Adc *p_adc);
|
|
#endif
|
|
|
|
#if SAM3S || SAM3N || SAM3XA
|
|
/**
|
|
* \brief Enables or disables write protection of ADC registers.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_eanble 1 to eanble, 0 to disable.
|
|
*/
|
|
extern void adc_set_writeprotect(Adc *p_adc, uint32_t ul_enable);
|
|
|
|
/**
|
|
* \brief Indicates write protect status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \return 0 if the peripheral is not protected, or 16-bit Write Protect Violation Status.
|
|
*/
|
|
extern uint32_t adc_get_writeprotect_status(Adc *p_adc);
|
|
|
|
|
|
/**
|
|
* \brief Checks ADC configurations.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_mck Main clock of the device (value in Hz).
|
|
*/
|
|
extern void adc_check(Adc* p_adc, uint32_t ul_mck);
|
|
#endif
|
|
|
|
#if SAM3S || SAM3N || SAM3XA
|
|
/**
|
|
* \brief Gets PDC registers base address.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval PDC registers base for PDC driver to access.
|
|
*/
|
|
extern Pdc *adc_get_pdc_base(Adc *p_adc);
|
|
#endif
|
|
|
|
#if SAM3U
|
|
|
|
#ifdef ADC_12B
|
|
/**
|
|
* \brief Initializes the given ADC with the specified ADC clock and startup time.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_mck Main clock of the device (value in Hz).
|
|
* \param dw_adc_clock Analog-to-Digital conversion clock (value in Hz).
|
|
* \param uc_startup ADC start up time value(value in us). Please refer to the product datasheet for details.
|
|
* \param ul_offmode_startuptime ADC off mode startup Time value(value in us). Please refer to the product datasheet for details.
|
|
*
|
|
* \retval 0 The initialization operation succeeds.
|
|
* \retval others The initialization operation fails.
|
|
*/
|
|
extern uint32_t adc_init(Adc12b *p_adc, uint32_t ul_mck, uint32_t ul_adc_clock, uint32_t ul_startuptime, uint32_t ul_offmode_startuptime);
|
|
/**
|
|
* \brief Configures conversion resolution.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param resolution ADC resolution.
|
|
*/
|
|
extern void adc_set_resolution(Adc12b *p_adc, adc_resolution_t resolution);
|
|
/**
|
|
* \brief Configures conversion trigger and free run mode.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param trigger Conversion trigger.
|
|
*/
|
|
extern void adc_configure_trigger(Adc12b *p_adc, adc_trigger_t trigger);
|
|
/**
|
|
* \brief Configures ADC power saving mode.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param uc_sleep ADC_MR_SLEEP_NORMAL keeps the ADC Core and reference voltage circuitry ON between conversions
|
|
* ADC_MR_SLEEP_SLEEP keeps the ADC Core and reference voltage circuitry OFF between conversions
|
|
* \param uc_offmode 0 Standby Mode (if Sleep Bit = 1)
|
|
* 1 Off Mode
|
|
*/
|
|
extern void adc_configure_power_save(Adc12b *p_adc, uint8_t uc_sleep, uint8_t uc_offmode);
|
|
/**
|
|
* \brief Configures ADC timing.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param ul_sh ADC sample and hold time = uc_sh / ADC clock.
|
|
*/
|
|
extern void adc_configure_timing(Adc12b *p_adc, uint32_t ul_sh);
|
|
/**
|
|
* \brief Starts analog-to-digital conversion.
|
|
*
|
|
* \note If one of the hardware event is selected as ADC trigger, this function can NOT start analog to digital conversion.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*/
|
|
extern void adc_start(Adc12b *p_adc);
|
|
/**
|
|
* \brief Stop analog-to-digital conversion.
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*/
|
|
extern void adc_stop(Adc12b *p_adc);
|
|
/**
|
|
* \brief Enables the specified ADC channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*/
|
|
extern void adc_enable_channel(Adc12b *p_adc, adc_channel_num_t adc_ch);
|
|
|
|
/**
|
|
* \brief Disables the specified ADC channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*/
|
|
extern void adc_disable_channel(Adc12b *p_adc, adc_channel_num_t adc_ch);
|
|
|
|
/**
|
|
* \brief Reads the ADC channel status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*
|
|
* \retval 1 means the specified channel is enabled.
|
|
* 0 means the specified channel is disabled.
|
|
*/
|
|
extern uint32_t adc_get_status(Adc12b *p_adc, adc_channel_num_t adc_ch);
|
|
|
|
/**
|
|
* \brief Reads the ADC result data of the specified channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*
|
|
* \retval ADC data of the specified channel.
|
|
*/
|
|
extern uint32_t adc_get_value(Adc12b *p_adc, adc_channel_num_t adc_ch);
|
|
/**
|
|
* \brief Reads the last ADC result data.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval ADC data.
|
|
*/
|
|
extern uint32_t adc_get_latest_value(Adc12b *p_adc);
|
|
|
|
/**
|
|
* \brief Enables differential input for the specified channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*/
|
|
extern void adc_enable_differential_input(Adc12b *p_adc);
|
|
|
|
/**
|
|
* \brief Disables differential input for the specified channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
*/
|
|
extern void adc_disable_differential_input(Adc12b *p_adc);
|
|
|
|
/**
|
|
* \brief Enables analog signal offset for the specified channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
*/
|
|
extern void adc_enable_input_offset(Adc12b *p_adc);
|
|
|
|
/**
|
|
* \brief Disables analog signal offset for the specified channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
*/
|
|
extern void adc_disable_input_offset(Adc12b *p_adc);
|
|
|
|
/**
|
|
* \brief Configures input gain for the specified channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param gain Gain value for the input.
|
|
*
|
|
*/
|
|
extern void adc_set_input_gain(Adc12b *p_adc, adc_gainvalue_t uc_gain);
|
|
/**
|
|
* \brief Returns the actual ADC clock.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param ul_mck Main clock of the device (value in Hz).
|
|
*
|
|
* \retval 0 The actual ADC clock (value in Hz).
|
|
*/
|
|
extern uint32_t adc_get_actual_adc_clock(Adc12b *p_adc, uint32_t ul_mck);
|
|
|
|
/**
|
|
* \brief Enables ADC interrupt(s).
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_source Interrupt(s) to be enabled.
|
|
*
|
|
*/
|
|
extern void adc_enable_interrupt(Adc12b *p_adc, uint32_t ul_source);
|
|
|
|
/**
|
|
* \brief Disables ADC interrupt(s).
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_source Interrupt(s) to be disabled.
|
|
*/
|
|
extern void adc_disable_interrupt(Adc12b *p_adc, uint32_t ul_source);
|
|
|
|
/** \brief Read ADC interrupt mask.
|
|
*
|
|
* \param p_uart pointer to a UART instance.
|
|
*
|
|
* \return The interrupt mask value.
|
|
*/
|
|
extern uint32_t adc_get_interrupt_mask(Adc12b *p_adc);
|
|
/**
|
|
* \brief Reads ADC interrupt status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval ADC interrupt status.
|
|
*/
|
|
extern uint32_t adc_get_interrupt_status(Adc12b *p_adc);
|
|
/**
|
|
* \brief Reads overrun status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval ADC overrun status.
|
|
*/
|
|
extern uint32_t adc_check_ovr(Adc12b *p_adc,adc_channel_num_t adc_ch);
|
|
/**
|
|
* \brief Adapts performance versus power consumption.
|
|
*
|
|
* \note Please refer to ADC Characteristics in the product datasheet for the details.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param ibctl ADC Bias current control.
|
|
*
|
|
*/
|
|
extern void adc_set_bias_current(Adc12b *p_adc, uint8_t uc_ibctl);
|
|
/**
|
|
* \brief Gets PDC registers base address.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval PDC registers base for PDC driver to access.
|
|
*/
|
|
extern Pdc *adc_get_pdc_base(Adc12b *p_adc);
|
|
#else
|
|
/**
|
|
* \brief Initializes the given ADC with the specified ADC clock and startup time.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_mck Main clock of the device (value in Hz).
|
|
* \param dw_adc_clock Analog-to-Digital conversion clock (value in Hz).
|
|
* \param uc_startup ADC start up time value(value in us). Please refer to the product datasheet for details.
|
|
* \param ul_offmode_startuptime ADC off mode startup Time value(value in us). Please refer to the product datasheet for details.
|
|
*
|
|
* \retval 0 The initialization operation succeeds.
|
|
* \retval others The initialization operation fails.
|
|
*/
|
|
extern uint32_t adc_init(Adc *p_adc, uint32_t ul_mck, uint32_t ul_adc_clock, uint32_t ul_startuptime, uint32_t ul_offmode_startuptime);
|
|
|
|
/**
|
|
* \brief Configures conversion resolution.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param resolution ADC resolution.
|
|
*
|
|
*/
|
|
extern void adc_set_resolution(Adc *p_adc, adc_resolution_t resolution);
|
|
/**
|
|
* \brief Configures conversion trigger and free run mode.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param trigger Conversion trigger.
|
|
*
|
|
*/
|
|
extern void adc_configure_trigger(Adc *p_adc, adc_trigger_t trigger);
|
|
/**
|
|
* \brief Configures ADC power saving mode.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param uc_sleep ADC_MR_SLEEP_NORMAL keeps the ADC Core and reference voltage circuitry ON between conversions
|
|
* ADC_MR_SLEEP_SLEEP keeps the ADC Core and reference voltage circuitry OFF between conversions
|
|
* \param uc_offmode 0 Standby Mode (if Sleep Bit = 1)
|
|
* 1 Off Mode
|
|
*
|
|
*/
|
|
extern void adc_configure_power_save(Adc *p_adc, uint8_t uc_sleep, uint8_t uc_offmode);
|
|
/**
|
|
* \brief Configures ADC timing.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param ul_sh ADC sample and hold time = uc_sh / ADC clock.
|
|
*
|
|
*/
|
|
extern void adc_configure_timing(Adc *p_adc, uint32_t ul_sh);
|
|
/**
|
|
* \brief enable analog change.
|
|
*
|
|
* note it allows different analog settings for each channel,
|
|
*
|
|
* \param pAdc Pointer to an Adc instance.
|
|
*/
|
|
extern void adc_enable_anch( Adc *pAdc );
|
|
|
|
/**
|
|
* \brief disable analog change.
|
|
*
|
|
* note DIFF0, GAIN0 and OFF0 are used for all channels.
|
|
*
|
|
* \param pAdc Pointer to an Adc instance.
|
|
*/
|
|
extern void adc_disable_anch( Adc *pAdc );
|
|
|
|
/**
|
|
* \brief Starts analog-to-digital conversion.
|
|
*
|
|
* \note If one of the hardware event is selected as ADC trigger, this function can NOT start analog to digital conversion.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
*/
|
|
extern void adc_start(Adc *p_adc);
|
|
/**
|
|
* \brief Stop analog-to-digital conversion.
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
*/
|
|
extern void adc_stop(Adc *p_adc);
|
|
/**
|
|
* \brief Enables the specified ADC channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*
|
|
*/
|
|
extern void adc_enable_channel(Adc *p_adc, adc_channel_num_t adc_ch);
|
|
|
|
/**
|
|
* \brief Disables the specified ADC channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*
|
|
*/
|
|
extern void adc_disable_channel(Adc *p_adc, adc_channel_num_t adc_ch);
|
|
|
|
/**
|
|
* \brief Reads the ADC channel status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*
|
|
* \retval 1 means the specified channel is enabled.
|
|
* 0 means the specified channel is disabled.
|
|
*/
|
|
extern uint32_t adc_get_status(Adc *p_adc, adc_channel_num_t adc_ch);
|
|
|
|
/**
|
|
* \brief Reads the ADC result data of the specified channel.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param adc_ch ADC channel number.
|
|
*
|
|
* \retval ADC data of the specified channel.
|
|
*/
|
|
extern uint32_t adc_get_value(Adc *p_adc, adc_channel_num_t adc_ch);
|
|
|
|
/**
|
|
* \brief Reads the last ADC result data.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval ADC data.
|
|
*/
|
|
extern uint32_t adc_get_latest_value(Adc *p_adc);
|
|
|
|
/**
|
|
* \brief Returns the actual ADC clock.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param ul_mck Main clock of the device (value in Hz).
|
|
*
|
|
* \retval 0 The actual ADC clock (value in Hz).
|
|
*/
|
|
extern uint32_t adc_get_actual_adc_clock(Adc *p_adc, uint32_t ul_mck);
|
|
|
|
/**
|
|
* \brief Enables ADC interrupt(s).
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_source Interrupt(s) to be enabled.
|
|
*
|
|
*/
|
|
extern void adc_enable_interrupt(Adc *p_adc, uint32_t ul_source);
|
|
|
|
/**
|
|
* \brief Disables ADC interrupt(s).
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
* \param dw_source Interrupt(s) to be disabled.
|
|
*
|
|
*/
|
|
extern void adc_disable_interrupt(Adc *p_adc, uint32_t ul_source);
|
|
/** \brief Read ADC interrupt mask.
|
|
*
|
|
* \param p_uart pointer to a UART instance.
|
|
*
|
|
* \return The interrupt mask value.
|
|
*/
|
|
extern uint32_t adc_get_interrupt_mask(Adc *p_adc);
|
|
/**
|
|
* \brief Reads ADC interrupt status.
|
|
*
|
|
* \param p_adc Pointer to an ADC instance.
|
|
*
|
|
* \retval ADC interrupt status.
|
|
*/
|
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extern uint32_t adc_get_interrupt_status(Adc *p_adc);
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/**
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* \brief Reads overrun status.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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* \retval ADC overrun status.
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*/
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extern uint32_t adc_check_ovr(Adc *p_adc,adc_channel_num_t adc_ch);
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/**
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* \brief Gets PDC registers base address.
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*
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* \param p_adc Pointer to an ADC instance.
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*
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* \retval PDC registers base for PDC driver to access.
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|
*/
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extern Pdc *adc_get_pdc_base(Adc *p_adc);
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#endif
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#endif
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/// @cond 0
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/**INDENT-OFF**/
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#ifdef __cplusplus
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}
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#endif
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/**INDENT-ON**/
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/// @endcond
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|
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#endif /* #ifndef ADC_H_INCLUDED */
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