| /* ---------------------------------------------------------------------------- | |
| * SAM Software Package License | |
| * ---------------------------------------------------------------------------- | |
| * Copyright (c) 2014, Atmel Corporation | |
| * | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are met: | |
| * | |
| * - Redistributions of source code must retain the above copyright notice, | |
| * this list of conditions and the disclaimer below. | |
| * | |
| * Atmel's name may not be used to endorse or promote products derived from | |
| * this software without specific prior written permission. | |
| * | |
| * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR | |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE | |
| * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
| * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| * ---------------------------------------------------------------------------- | |
| */ | |
| /** | |
| * \file | |
| * | |
| * \section Purpose | |
| * | |
| * Interface for configuration the Analog-to-Digital Converter (AFEC) peripheral. | |
| * | |
| * \section Usage | |
| * | |
| * -# Configurate the pins for AFEC. | |
| * -# Initialize the AFEC with AFEC_Initialize(). | |
| * -# Set AFEC clock and timing with AFEC_SetClock() and AFEC_SetTiming(). | |
| * -# Select the active channel using AFEC_EnableChannel(). | |
| * -# Start the conversion with AFEC_StartConversion(). | |
| * -# Wait the end of the conversion by polling status with AFEC_GetStatus(). | |
| * -# Finally, get the converted data using AFEC_GetConvertedData() or | |
| * AFEC_GetLastConvertedData(). | |
| * | |
| */ | |
| #ifndef _AFEC_ | |
| #define _AFEC_ | |
| /*---------------------------------------------------------------------------- | |
| * Headers | |
| *----------------------------------------------------------------------------*/ | |
| #include <assert.h> | |
| #include <stdint.h> | |
| /*------------------------------------------------------------------------------ | |
| * Definitions | |
| *------------------------------------------------------------------------------*/ | |
| /* -------- AFEC_MR : (AFEC Offset: 0x04) AFEC Mode Register -------- */ | |
| #define AFEC_MR_SETTLING_Pos 20 | |
| #define AFEC_MR_SETTLING_Msk (0x3u << AFEC_MR_SETTLING_Pos) | |
| /**< \brief (AFEC_MR) Trigger Selection */ | |
| #define AFEC_MR_SETTLING_AST3 (0x0u << 20) | |
| /**< \brief (AFEC_MR) ADC_SETTLING_AST3 3 periods of AFEClock */ | |
| #define AFEC_MR_SETTLING_AST5 (0x1u << 20) | |
| /**< \brief (AFEC_MR) ADC_SETTLING_AST5 5 periods of AFEClock */ | |
| #define AFEC_MR_SETTLING_AST9 (0x2u << 20) | |
| /**< \brief (AFEC_MR) ADC_SETTLING_AST9 9 periods of AFEClock*/ | |
| #define AFEC_MR_SETTLING_AST17 (0x3u << 20) | |
| /**< \brief (AFEC_MR) ADC_SETTLING_AST17 17 periods of AFEClock*/ | |
| /***************************** Single Trigger Mode ****************************/ | |
| #define AFEC_EMR_STM_Pos 25 | |
| #define AFEC_EMR_STM_Msk (0x1u << AFEC_EMR_STM_Pos) | |
| /**< \brief (AFEC_EMR) Single Trigger Mode */ | |
| #define AFEC_EMR_STM_MULTI_TRIG (0x0u << 25) | |
| /**< \brief (AFEC_EMR) Single Trigger Mode: Multiple triggers are required to | |
| get an averaged result. */ | |
| #define AFEC_EMR_STM_SINGLE_TRIG (0x1u << 25) | |
| /**< \brief (AFEC_EMR) Single Trigger Mode: Only a Single Trigger is required | |
| to get an averaged value. */ | |
| /***************************** TAG of the AFEC_LDCR Register ******************/ | |
| #define AFEC_EMR_TAG_Pos 24 | |
| #define AFEC_EMR_TAG_Msk (0x1u << AFEC_EMR_TAG_Pos) | |
| /**< \brief (AFEC_EMR) TAG of the AFEC_LDCR Register */ | |
| #define AFEC_EMR_TAG_CHNB_ZERO (0x0u << 24) | |
| /**< \brief (AFEC_EMR) TAG of the AFEC_LDCR Register: Sets CHNB to zero | |
| in AFEC_LDCR. */ | |
| #define AFEC_EMR_TAG_APPENDS (0x1u << 24) | |
| /**< \brief (AFEC_EMR) TAG of the AFEC_LDCR Register: Appends the channel | |
| number to the conversion result in AFEC_LDCR register. */ | |
| /***************************** Compare All Channels ******************/ | |
| #define AFEC_EMR_CMPALL_Pos 9 | |
| #define AFEC_EMR_CMPALL_Msk (0x1u << AFEC_EMR_TAG_Pos) | |
| /**< \brief (AFEC_EMR) Compare All Channels */ | |
| #define AFEC_EMR_CMPALL_ONE_CHANNEL_COMP (0x0u << 9) | |
| /**< \brief (AFEC_EMR) Compare All Channels: Only channel indicated in | |
| CMPSEL field is compared. */ | |
| #define AFEC_EMR_CMPALL_ALL_CHANNELS_COMP (0x1u << 9) | |
| /**< \brief (AFEC_EMR) Compare All Channels: All channels are compared. */ | |
| #define AFEC_ACR_PGA0_ON (0x1u << 2) | |
| #define AFEC_ACR_PGA1_ON (0x1u << 3) | |
| #ifdef __cplusplus | |
| extern "C" { | |
| #endif | |
| /*------------------------------------------------------------------------------ | |
| * Macros function of register access | |
| *------------------------------------------------------------------------------*/ | |
| #define AFEC_GetModeReg( pAFEC ) ((pAFEC)->AFEC_MR) | |
| #define AFEC_SetModeReg( pAFEC, mode ) ((pAFEC)->AFEC_MR = mode) | |
| #define AFEC_GetExtModeReg( pAFEC ) ((pAFEC)->AFEC_EMR) | |
| #define AFEC_SetExtModeReg( pAFEC, mode ) ((pAFEC)->AFEC_EMR = mode) | |
| #define AFEC_StartConversion( pAFEC ) ((pAFEC)->AFEC_CR = AFEC_CR_START) | |
| #define AFEC_EnableChannel( pAFEC, dwChannel ) {\ | |
| (pAFEC)->AFEC_CHER = (1 << (dwChannel));\ | |
| } | |
| #define AFEC_DisableChannel(pAFEC, dwChannel) {\ | |
| (pAFEC)->AFEC_CHDR = (1 << (dwChannel));\ | |
| } | |
| #define AFEC_EnableIt(pAFEC, dwMode) {\ | |
| (pAFEC)->AFEC_IER = (dwMode);\ | |
| } | |
| #define AFEC_DisableIt(pAFEC, dwMode) {\ | |
| (pAFEC)->AFEC_IDR = (dwMode);\ | |
| } | |
| #define AFEC_SetChannelGain(pAFEC,dwMode) {\ | |
| (pAFEC)->AFEC_CGR = dwMode;\ | |
| } | |
| #define AFEC_EnableDataReadyIt(pAFEC) ((pAFEC)->AFEC_IER = AFEC_IER_DRDY) | |
| #define AFEC_GetStatus(pAFEC) ((pAFEC)->AFEC_ISR) | |
| #define AFEC_GetCompareMode(pAFEC) (((pAFEC)->AFEC_EMR)& (AFEC_EMR_CMPMODE_Msk)) | |
| #define AFEC_GetChannelStatus(pAFEC) ((pAFEC)->AFEC_CHSR) | |
| #define AFEC_GetInterruptMaskStatus(pAFEC) ((pAFEC)->AFEC_IMR) | |
| #define AFEC_GetLastConvertedData(pAFEC) ((pAFEC)->AFEC_LCDR) | |
| /*------------------------------------------------------------------------------ | |
| * Exported functions | |
| *------------------------------------------------------------------------------*/ | |
| extern void AFEC_Initialize( Afec* pAFEC, uint32_t dwId ); | |
| extern uint32_t AFEC_SetClock( Afec* pAFEC, uint32_t dwPres, uint32_t dwMck ); | |
| extern void AFEC_SetTiming( Afec* pAFEC, uint32_t dwStartup, uint32_t dwTracking, | |
| uint32_t dwSettling ); | |
| extern void AFEC_SetTrigger( Afec* pAFEC, uint32_t dwTrgSel ); | |
| extern void AFEC_SetAnalogChange( Afec* pAFE, uint8_t bEnDis ); | |
| extern void AFEC_SetSleepMode( Afec* pAFEC, uint8_t bEnDis ); | |
| extern void AFEC_SetFastWakeup( Afec* pAFEC, uint8_t bEnDis ); | |
| extern void AFEC_SetSequenceMode( Afec* pAFEC, uint8_t bEnDis ); | |
| extern void AFEC_SetSequence( Afec* pAFEC, uint32_t dwSEQ1, uint32_t dwSEQ2 ); | |
| extern void AFEC_SetSequenceByList( Afec* pAFEC, uint8_t ucChList[], uint8_t ucNumCh ); | |
| extern void AFEC_SetTagEnable( Afec* pAFEC, uint8_t bEnDis ); | |
| extern void AFEC_SetCompareChannel( Afec* pAFEC, uint32_t dwChannel ) ; | |
| extern void AFEC_SetCompareMode( Afec* pAFEC, uint32_t dwMode ) ; | |
| extern void AFEC_SetComparisonWindow( Afec* pAFEC, uint32_t dwHi_Lo ) ; | |
| extern uint8_t AFEC_CheckConfiguration( Afec* pAFEC, uint32_t dwMcK ) ; | |
| extern uint32_t AFEC_GetConvertedData( Afec* pAFEC, uint32_t dwChannel ) ; | |
| extern void AFEC_SetStartupTime( Afec* pAFEC, uint32_t dwUs ); | |
| extern void AFEC_SetTrackingTime( Afec* pAFEC, uint32_t dwNs ); | |
| extern void AFEC_SetAnalogOffset( Afec *pAFE, uint32_t dwChannel,uint32_t aoffset ); | |
| extern void AFEC_SetAnalogControl( Afec *pAFE, uint32_t control); | |
| #ifdef __cplusplus | |
| } | |
| #endif | |
| #endif /* #ifndef _AFEC_ */ | |