326 lines
16 KiB
C
326 lines
16 KiB
C
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//*****************************************************************************
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//
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// adc.h - ADC headers for using the ADC driver functions.
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//
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// Copyright (c) 2005-2017 Texas Instruments Incorporated. All rights reserved.
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// Software License Agreement
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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
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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//*****************************************************************************
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#ifndef __DRIVERLIB_ADC_H__
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#define __DRIVERLIB_ADC_H__
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#include <stdint.h>
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#include <stdbool.h>
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//*****************************************************************************
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//
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// If building with a C++ compiler, make all of the definitions in this header
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// have a C binding.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//*****************************************************************************
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//
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// Values that can be passed to ADCSequenceConfigure as the ui32Trigger
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// parameter.
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//
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//*****************************************************************************
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#define ADC_TRIGGER_PROCESSOR 0x00000000 // Processor event
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#define ADC_TRIGGER_COMP0 0x00000001 // Analog comparator 0 event
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#define ADC_TRIGGER_COMP1 0x00000002 // Analog comparator 1 event
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#define ADC_TRIGGER_COMP2 0x00000003 // Analog comparator 2 event
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#define ADC_TRIGGER_EXTERNAL 0x00000004 // External event
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#define ADC_TRIGGER_TIMER 0x00000005 // Timer event
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#define ADC_TRIGGER_PWM0 0x00000006 // PWM0 event
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#define ADC_TRIGGER_PWM1 0x00000007 // PWM1 event
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#define ADC_TRIGGER_PWM2 0x00000008 // PWM2 event
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#define ADC_TRIGGER_PWM3 0x00000009 // PWM3 event
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#define ADC_TRIGGER_NEVER 0x0000000E // Never Trigger
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#define ADC_TRIGGER_ALWAYS 0x0000000F // Always event
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//*****************************************************************************
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//
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// Values that can be passed to ADCSequenceStepConfigure as the ui32Config
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// parameter.
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//
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//*****************************************************************************
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#define ADC_CTL_TS 0x00000080 // Temperature sensor select
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#define ADC_CTL_IE 0x00000040 // Interrupt enable
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#define ADC_CTL_END 0x00000020 // Sequence end select
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#define ADC_CTL_D 0x00000010 // Differential select
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#define ADC_CTL_CH0 0x00000000 // Input channel 0
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#define ADC_CTL_CH1 0x00000001 // Input channel 1
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#define ADC_CTL_CH2 0x00000002 // Input channel 2
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#define ADC_CTL_CH3 0x00000003 // Input channel 3
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#define ADC_CTL_CH4 0x00000004 // Input channel 4
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#define ADC_CTL_CH5 0x00000005 // Input channel 5
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#define ADC_CTL_CH6 0x00000006 // Input channel 6
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#define ADC_CTL_CH7 0x00000007 // Input channel 7
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#define ADC_CTL_CH8 0x00000008 // Input channel 8
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#define ADC_CTL_CH9 0x00000009 // Input channel 9
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#define ADC_CTL_CH10 0x0000000A // Input channel 10
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#define ADC_CTL_CH11 0x0000000B // Input channel 11
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#define ADC_CTL_CH12 0x0000000C // Input channel 12
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#define ADC_CTL_CH13 0x0000000D // Input channel 13
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#define ADC_CTL_CH14 0x0000000E // Input channel 14
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#define ADC_CTL_CH15 0x0000000F // Input channel 15
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#define ADC_CTL_CH16 0x00000100 // Input channel 16
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#define ADC_CTL_CH17 0x00000101 // Input channel 17
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#define ADC_CTL_CH18 0x00000102 // Input channel 18
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#define ADC_CTL_CH19 0x00000103 // Input channel 19
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#define ADC_CTL_CH20 0x00000104 // Input channel 20
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#define ADC_CTL_CH21 0x00000105 // Input channel 21
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#define ADC_CTL_CH22 0x00000106 // Input channel 22
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#define ADC_CTL_CH23 0x00000107 // Input channel 23
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#define ADC_CTL_CMP0 0x00080000 // Select Comparator 0
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#define ADC_CTL_CMP1 0x00090000 // Select Comparator 1
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#define ADC_CTL_CMP2 0x000A0000 // Select Comparator 2
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#define ADC_CTL_CMP3 0x000B0000 // Select Comparator 3
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#define ADC_CTL_CMP4 0x000C0000 // Select Comparator 4
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#define ADC_CTL_CMP5 0x000D0000 // Select Comparator 5
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#define ADC_CTL_CMP6 0x000E0000 // Select Comparator 6
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#define ADC_CTL_CMP7 0x000F0000 // Select Comparator 7
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#define ADC_CTL_SHOLD_4 0x00000000 // Sample and hold 4 ADC clocks
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#define ADC_CTL_SHOLD_8 0x00200000 // Sample and hold 8 ADC clocks
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#define ADC_CTL_SHOLD_16 0x00400000 // Sample and hold 16 ADC clocks
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#define ADC_CTL_SHOLD_32 0x00600000 // Sample and hold 32 ADC clocks
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#define ADC_CTL_SHOLD_64 0x00800000 // Sample and hold 64 ADC clocks
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#define ADC_CTL_SHOLD_128 0x00A00000 // Sample and hold 128 ADC clocks
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#define ADC_CTL_SHOLD_256 0x00C00000 // Sample and hold 256 ADC clocks
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//*****************************************************************************
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//
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// Values that can be passed to ADCComparatorConfigure as part of the
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// ui32Config parameter.
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//
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//*****************************************************************************
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#define ADC_COMP_TRIG_NONE 0x00000000 // Trigger Disabled
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#define ADC_COMP_TRIG_LOW_ALWAYS \
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0x00001000 // Trigger Low Always
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#define ADC_COMP_TRIG_LOW_ONCE 0x00001100 // Trigger Low Once
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#define ADC_COMP_TRIG_LOW_HALWAYS \
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0x00001200 // Trigger Low Always (Hysteresis)
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#define ADC_COMP_TRIG_LOW_HONCE 0x00001300 // Trigger Low Once (Hysteresis)
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#define ADC_COMP_TRIG_MID_ALWAYS \
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0x00001400 // Trigger Mid Always
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#define ADC_COMP_TRIG_MID_ONCE 0x00001500 // Trigger Mid Once
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#define ADC_COMP_TRIG_HIGH_ALWAYS \
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0x00001C00 // Trigger High Always
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#define ADC_COMP_TRIG_HIGH_ONCE 0x00001D00 // Trigger High Once
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#define ADC_COMP_TRIG_HIGH_HALWAYS \
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0x00001E00 // Trigger High Always (Hysteresis)
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#define ADC_COMP_TRIG_HIGH_HONCE \
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0x00001F00 // Trigger High Once (Hysteresis)
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#define ADC_COMP_INT_NONE 0x00000000 // Interrupt Disabled
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#define ADC_COMP_INT_LOW_ALWAYS \
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0x00000010 // Interrupt Low Always
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#define ADC_COMP_INT_LOW_ONCE 0x00000011 // Interrupt Low Once
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#define ADC_COMP_INT_LOW_HALWAYS \
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0x00000012 // Interrupt Low Always
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// (Hysteresis)
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#define ADC_COMP_INT_LOW_HONCE 0x00000013 // Interrupt Low Once (Hysteresis)
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#define ADC_COMP_INT_MID_ALWAYS \
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0x00000014 // Interrupt Mid Always
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#define ADC_COMP_INT_MID_ONCE 0x00000015 // Interrupt Mid Once
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#define ADC_COMP_INT_HIGH_ALWAYS \
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0x0000001C // Interrupt High Always
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#define ADC_COMP_INT_HIGH_ONCE 0x0000001D // Interrupt High Once
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#define ADC_COMP_INT_HIGH_HALWAYS \
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0x0000001E // Interrupt High Always
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// (Hysteresis)
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#define ADC_COMP_INT_HIGH_HONCE \
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0x0000001F // Interrupt High Once (Hysteresis)
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//*****************************************************************************
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//
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// Values that can be used to modify the sequence number passed to
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// ADCProcessorTrigger in order to get cross-module synchronous processor
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// triggers.
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//
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//*****************************************************************************
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#define ADC_TRIGGER_WAIT 0x08000000 // Wait for the synchronous trigger
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#define ADC_TRIGGER_SIGNAL 0x80000000 // Signal the synchronous trigger
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//*****************************************************************************
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//
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// Values that can be passed to ADCPhaseDelaySet as the ui32Phase parameter and
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// returned from ADCPhaseDelayGet.
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//
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//*****************************************************************************
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#define ADC_PHASE_0 0x00000000 // 0 degrees
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#define ADC_PHASE_22_5 0x00000001 // 22.5 degrees
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#define ADC_PHASE_45 0x00000002 // 45 degrees
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#define ADC_PHASE_67_5 0x00000003 // 67.5 degrees
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#define ADC_PHASE_90 0x00000004 // 90 degrees
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#define ADC_PHASE_112_5 0x00000005 // 112.5 degrees
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#define ADC_PHASE_135 0x00000006 // 135 degrees
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#define ADC_PHASE_157_5 0x00000007 // 157.5 degrees
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#define ADC_PHASE_180 0x00000008 // 180 degrees
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#define ADC_PHASE_202_5 0x00000009 // 202.5 degrees
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#define ADC_PHASE_225 0x0000000A // 225 degrees
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#define ADC_PHASE_247_5 0x0000000B // 247.5 degrees
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#define ADC_PHASE_270 0x0000000C // 270 degrees
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#define ADC_PHASE_292_5 0x0000000D // 292.5 degrees
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#define ADC_PHASE_315 0x0000000E // 315 degrees
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#define ADC_PHASE_337_5 0x0000000F // 337.5 degrees
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//*****************************************************************************
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//
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// Values that can be passed to ADCReferenceSet as the ui32Ref parameter.
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//
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//*****************************************************************************
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#define ADC_REF_INT 0x00000000 // Internal reference
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#define ADC_REF_EXT_3V 0x00000001 // External 3V reference
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//*****************************************************************************
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//
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// Values that can be passed to ADCIntDisableEx(), ADCIntEnableEx(),
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// ADCIntClearEx() and ADCIntStatusEx().
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//
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//*****************************************************************************
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#define ADC_INT_SS0 0x00000001
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#define ADC_INT_SS1 0x00000002
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#define ADC_INT_SS2 0x00000004
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#define ADC_INT_SS3 0x00000008
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#define ADC_INT_DMA_SS0 0x00000100
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#define ADC_INT_DMA_SS1 0x00000200
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#define ADC_INT_DMA_SS2 0x00000400
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#define ADC_INT_DMA_SS3 0x00000800
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#define ADC_INT_DCON_SS0 0x00010000
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#define ADC_INT_DCON_SS1 0x00020000
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#define ADC_INT_DCON_SS2 0x00040000
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#define ADC_INT_DCON_SS3 0x00080000
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//*****************************************************************************
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//
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// Values that can be passed to ADCClockConfigSet() and ADCClockConfigGet().
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//
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//*****************************************************************************
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#define ADC_CLOCK_RATE_FULL 0x00000070
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#define ADC_CLOCK_RATE_HALF 0x00000050
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#define ADC_CLOCK_RATE_FOURTH 0x00000030
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#define ADC_CLOCK_RATE_EIGHTH 0x00000010
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#define ADC_CLOCK_SRC_PLL 0x00000000
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#define ADC_CLOCK_SRC_ALTCLK 0x00000001
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#define ADC_CLOCK_SRC_MOSC 0x00000002
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//*****************************************************************************
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//
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// Prototypes for the APIs.
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//
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//*****************************************************************************
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extern void ADCIntRegister(uint32_t ui32Base, uint32_t ui32SequenceNum,
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void (*pfnHandler)(void));
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extern void ADCIntUnregister(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern void ADCIntDisable(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern void ADCIntEnable(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern uint32_t ADCIntStatus(uint32_t ui32Base, uint32_t ui32SequenceNum,
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bool bMasked);
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extern void ADCIntClear(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern void ADCSequenceEnable(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern void ADCSequenceDisable(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern void ADCSequenceConfigure(uint32_t ui32Base, uint32_t ui32SequenceNum,
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uint32_t ui32Trigger, uint32_t ui32Priority);
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extern void ADCSequenceStepConfigure(uint32_t ui32Base,
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uint32_t ui32SequenceNum,
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uint32_t ui32Step, uint32_t ui32Config);
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extern int32_t ADCSequenceOverflow(uint32_t ui32Base,
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uint32_t ui32SequenceNum);
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extern void ADCSequenceOverflowClear(uint32_t ui32Base,
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uint32_t ui32SequenceNum);
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extern int32_t ADCSequenceUnderflow(uint32_t ui32Base,
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uint32_t ui32SequenceNum);
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extern void ADCSequenceUnderflowClear(uint32_t ui32Base,
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uint32_t ui32SequenceNum);
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extern int32_t ADCSequenceDataGet(uint32_t ui32Base, uint32_t ui32SequenceNum,
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uint32_t *pui32Buffer);
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extern void ADCProcessorTrigger(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern void ADCSoftwareOversampleConfigure(uint32_t ui32Base,
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uint32_t ui32SequenceNum,
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uint32_t ui32Factor);
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extern void ADCSoftwareOversampleStepConfigure(uint32_t ui32Base,
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uint32_t ui32SequenceNum,
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uint32_t ui32Step,
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uint32_t ui32Config);
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extern void ADCSoftwareOversampleDataGet(uint32_t ui32Base,
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uint32_t ui32SequenceNum,
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uint32_t *pui32Buffer,
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uint32_t ui32Count);
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extern void ADCHardwareOversampleConfigure(uint32_t ui32Base,
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uint32_t ui32Factor);
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extern void ADCClockConfigSet(uint32_t ui32Base, uint32_t ui32Config,
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uint32_t ui32ClockDiv);
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extern uint32_t ADCClockConfigGet(uint32_t ui32Base, uint32_t *pui32ClockDiv);
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extern void ADCComparatorConfigure(uint32_t ui32Base, uint32_t ui32Comp,
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uint32_t ui32Config);
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extern void ADCComparatorRegionSet(uint32_t ui32Base, uint32_t ui32Comp,
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uint32_t ui32LowRef, uint32_t ui32HighRef);
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extern void ADCComparatorReset(uint32_t ui32Base, uint32_t ui32Comp,
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bool bTrigger, bool bInterrupt);
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extern void ADCComparatorIntDisable(uint32_t ui32Base,
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uint32_t ui32SequenceNum);
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extern void ADCComparatorIntEnable(uint32_t ui32Base,
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uint32_t ui32SequenceNum);
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extern uint32_t ADCComparatorIntStatus(uint32_t ui32Base);
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extern void ADCComparatorIntClear(uint32_t ui32Base, uint32_t ui32Status);
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extern void ADCIntDisableEx(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern void ADCIntEnableEx(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern uint32_t ADCIntStatusEx(uint32_t ui32Base, bool bMasked);
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extern void ADCIntClearEx(uint32_t ui32Base, uint32_t ui32IntFlags);
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extern void ADCSequenceDMAEnable(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern void ADCSequenceDMADisable(uint32_t ui32Base, uint32_t ui32SequenceNum);
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extern bool ADCBusy(uint32_t ui32Base);
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extern void ADCReferenceSet(uint32_t ui32Base, uint32_t ui32Ref);
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extern uint32_t ADCReferenceGet(uint32_t ui32Base);
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extern void ADCPhaseDelaySet(uint32_t ui32Base, uint32_t ui32Phase);
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extern uint32_t ADCPhaseDelayGet(uint32_t ui32Base);
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extern void ADCSampleRateSet(uint32_t ui32Base, uint32_t ui32ADCClock,
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uint32_t ui32Rate);
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extern uint32_t ADCSampleRateGet(uint32_t ui32Base);
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//*****************************************************************************
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//
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// Mark the end of the C bindings section for C++ compilers.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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}
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#endif
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#endif // __DRIVERLIB_ADC_H__
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