| /* ---------------------------------------------------------------------------- |
| * 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 |
| * 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 (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_ */ |