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Diffstat (limited to 'bsps/arm/atsam/include/libchip/include/acc.h')
| -rw-r--r-- | bsps/arm/atsam/include/libchip/include/acc.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/bsps/arm/atsam/include/libchip/include/acc.h b/bsps/arm/atsam/include/libchip/include/acc.h new file mode 100644 index 0000000000..4d10665bc6 --- /dev/null +++ b/bsps/arm/atsam/include/libchip/include/acc.h @@ -0,0 +1,152 @@ +/* ---------------------------------------------------------------------------- */ +/* Atmel Microcontroller Software Support */ +/* SAM Software Package License */ +/* ---------------------------------------------------------------------------- */ +/* Copyright (c) 2015, Atmel Corporation */ +/* */ +/* All rights reserved. */ +/* */ +/* Redistribution and use in source and binary forms, with or without */ +/* modification, are permitted provided that the following condition is 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 (ACC) peripheral. + * + * \section Usage + * + * -# Configurate the pins for ACC + * -# Initialize the ACC with ACC_Initialize(). + * -# Select the active channel using ACC_EnableChannel() + * -# Start the conversion with ACC_StartConversion() + * -# Wait the end of the conversion by polling status with ACC_GetStatus() + * -# Finally, get the converted data using ACC_GetConvertedData() + * + */ +#ifndef _ACC_ +#define _ACC_ + +/*---------------------------------------------------------------------------- + * Headers + *----------------------------------------------------------------------------*/ +#include "chip.h" + +#include <stdint.h> +#include <assert.h> + +/*------------------------------------------------------------------------------ + * Definitions + *------------------------------------------------------------------------------*/ +#define ACC_SELPLUS_AD12B0 0 +#define ACC_SELPLUS_AD12B1 1 +#define ACC_SELPLUS_AD12B2 2 +#define ACC_SELPLUS_AD12B3 3 +#define ACC_SELPLUS_AD12B4 4 +#define ACC_SELPLUS_AD12B5 5 +#define ACC_SELPLUS_AD12B6 6 +#define ACC_SELPLUS_AD12B7 7 +#define ACC_SELMINUS_TS 0 +#define ACC_SELMINUS_ADVREF 1 +#define ACC_SELMINUS_DAC0 2 +#define ACC_SELMINUS_DAC1 3 +#define ACC_SELMINUS_AD12B0 4 +#define ACC_SELMINUS_AD12B1 5 +#define ACC_SELMINUS_AD12B2 6 +#define ACC_SELMINUS_AD12B3 7 + +#ifdef __cplusplus +extern "C" { +#endif + +/*------------------------------------------------------------------------------ + * Macros function of register access + *------------------------------------------------------------------------------*/ +#define ACC_CfgModeReg(pAcc, mode) { \ + (pAcc)->ACC_MR = (mode);\ + } + +#define ACC_GetModeReg(pAcc) ((pAcc)->ACC_MR) + +#define ACC_StartConversion(pAcc) ((pAcc)->ACC_CR = ACC_CR_START) + +#define ACC_SoftReset(pAcc) ((pAcc)->ACC_CR = ACC_CR_SWRST) + +#define ACC_EnableChannel(pAcc, dwChannel) {\ + assert(dwChannel < 16);\ + (pAcc)->ACC_CHER = (1 << (dwChannel));\ + } + +#define ACC_DisableChannel(pAcc, dwChannel) {\ + assert(dwChannel < 16);\ + (pAcc)->ACC_CHDR = (1 << (dwChannel));\ + } + +#define ACC_EnableIt(pAcc, dwMode) {\ + assert(((dwMode)&0xFFF00000)== 0);\ + (pAcc)->ACC_IER = (dwMode);\ + } + +#define ACC_DisableIt(pAcc, dwMode) {\ + assert(((dwMode)&0xFFF00000)== 0);\ + (pAcc)->ACC_IDR = (dwMode);\ + } + +#define ACC_EnableDataReadyIt(pAcc) ((pAcc)->ACC_IER = AT91C_ACC_DRDY) + +#define ACC_GetStatus(pAcc) ((pAcc)->ACC_ISR) + +#define ACC_GetChannelStatus(pAcc) ((pAcc)->ACC_CHSR) + +#define ACC_GetInterruptMaskStatus(pAcc) ((pAcc)->ACC_IMR) + +#define ACC_GetLastConvertedData(pAcc) ((pAcc)->ACC_LCDR) + +#define ACC_CfgAnalogCtrlReg(pAcc, dwMode) {\ + assert(((dwMode) & 0xFFFCFF3C) == 0);\ + (pAcc)->ACC_ACR = (dwMode);\ + } + +#define ACC_CfgExtModeReg(pAcc, extmode) {\ + assert(((extmode) & 0xFF00FFFE) == 0);\ + (pAcc)->ACC_EMR = (extmode);\ + } + +#define ACC_GetAnalogCtrlReg(pAcc) ((pAcc)->ACC_ACR) + +/*------------------------------------------------------------------------------ + * Exported functions + *------------------------------------------------------------------------------*/ +extern void ACC_Configure(Acc *pAcc, uint8_t idAcc, uint8_t ucSelplus, + uint8_t ucSelminus, uint16_t wAc_en, uint16_t wEdge, uint16_t wInvert); + +extern void ACC_SetComparisonPair(Acc *pAcc, uint8_t ucSelplus, + uint8_t ucSelminus); + +extern uint32_t ACC_GetComparisonResult(Acc *pAcc, uint32_t dwStatus); + +#ifdef __cplusplus +} +#endif + +#endif /* #ifndef _ACC_ */ |