/* ---------------------------------------------------------------------------- | |
* ATMEL Microcontroller Software Support | |
* ---------------------------------------------------------------------------- | |
* Copyright (c) 2009, 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 | |
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, | |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
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* ---------------------------------------------------------------------------- | |
*/ | |
/** | |
* \file | |
* | |
* \section Purpose | |
* | |
* Interface for configuration the Analog-to-Digital Converter (DACC) peripheral. | |
* | |
* \section Usage | |
* | |
* -# Configurate the pins for DACC | |
* -# Initialize the DACC with DACC_Initialize(). | |
* -# Select the active channel using DACC_EnableChannel() | |
* -# Start the conversion with DACC_StartConversion() | |
* -# Wait the end of the conversion by polling status with DACC_GetStatus() | |
* -# Finally, get the converted data using DACC_GetConvertedData() | |
* | |
*/ | |
#ifndef _DACC_ | |
#define _DACC_ | |
/*---------------------------------------------------------------------------- | |
* Headers | |
*----------------------------------------------------------------------------*/ | |
#include "chip.h" | |
#include <stdint.h> | |
#include <assert.h> | |
/*------------------------------------------------------------------------------ | |
* Definitions | |
*------------------------------------------------------------------------------*/ | |
#define DACC_CHANNEL_0 0 | |
#define DACC_CHANNEL_1 1 | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
/*------------------------------------------------------------------------------ | |
* Macros function of register access | |
*------------------------------------------------------------------------------*/ | |
#define DACC_CfgModeReg(pDACC, mode) { \ | |
(pDACC)->DACC_MR = (mode);\ | |
} | |
#define DACC_GetModeReg(pDACC) ((pDACC)->DACC_MR) | |
#define DACC_StartConversion(pDACC) ((pDACC)->DACC_CR = DACC_CR_START) | |
#define DACC_SoftReset(pDACC) ((pDACC)->DACC_CR = DACC_CR_SWRST) | |
#define DACC_EnableChannel(pDACC, channel) {\ | |
(pDACC)->DACC_CHER = (1 << (channel));\ | |
} | |
#define DACC_DisableChannel(pDACC, channel) {\ | |
(pDACC)->DACC_CHDR = (1 << (channel));\ | |
} | |
#define DACC_EnableIt(pDACC, mode) {\ | |
assert( ((mode)&0xFFF00000)== 0 ) ;\ | |
(pDACC)->DACC_IER = (mode);\ | |
} | |
#define DACC_DisableIt(pDACC, mode) {\ | |
assert( ((mode)&0xFFF00000)== 0 ) ;\ | |
(pDACC)->DACC_IDR = (mode);\ | |
} | |
#define DACC_EnableDataReadyIt(pDACC) ((pDACC)->DACC_IER = AT91C_DACC_DRDY) | |
#define DACC_GetStatus(pDACC) ((pDACC)->DACC_ISR) | |
#define DACC_GetChannelStatus(pDACC) ((pDACC)->DACC_CHSR) | |
#define DACC_GetInterruptMaskStatus(pDACC) ((pDACC)->DACC_IMR) | |
#define DACC_GetLastConvertedData(pDACC) ((pDACC)->DACC_LCDR) | |
#define DACC_CfgAnalogCtrlReg(pDACC,mode) {\ | |
assert( ((mode) & 0xFFFCFF3C)==0 ) ;\ | |
(pDACC)->DACC_ACR = (mode);\ | |
} | |
#define DACC_CfgExtModeReg(pDACC, extmode) {\ | |
assert( ((extmode) & 0xFF00FFFE)==0 ) ;\ | |
(pDACC)->DACC_EMR = (extmode);\ | |
} | |
#define DACC_GetAnalogCtrlReg(pDACC) ((pDACC)->DACC_ACR) | |
/*------------------------------------------------------------------------------ | |
* Exported functions | |
*------------------------------------------------------------------------------*/ | |
extern void DACC_Initialize( Dacc* pDACC, | |
uint8_t idDACC, | |
uint8_t trgEn, | |
uint8_t trgSel, | |
uint8_t word, | |
uint8_t sleepMode, | |
uint32_t mck, | |
uint8_t refresh,/*refresh period*/ | |
uint8_t user_sel,/*user channel selection*/ | |
uint32_t tag_mode,/*using tag for channel number*/ | |
uint32_t startup | |
); | |
extern void DACC_SetConversionData( Dacc* pDACC, uint32_t dwData ) ; | |
extern uint32_t DACC_WriteBuffer( Dacc* pDACC, uint16_t* pwBuffer, uint32_t dwSize ) ; | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* #ifndef _DACC_ */ |