From 044ad7c3987460ede48ff27afd6bdb0ca05a0432 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Mon, 4 Jul 2011 20:52:54 +0200 Subject: import at91lib from at91lib_20100901_softpack_1_9_v_1_0_svn_v15011 it's sad to see that atmel doesn't publish their svn repo or has a centralized location or even puts proper version/release info into the library itself --- peripherals/adc/adc12.h | 142 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 peripherals/adc/adc12.h (limited to 'peripherals/adc/adc12.h') diff --git a/peripherals/adc/adc12.h b/peripherals/adc/adc12.h new file mode 100644 index 0000000..5a854aa --- /dev/null +++ b/peripherals/adc/adc12.h @@ -0,0 +1,142 @@ +/* ---------------------------------------------------------------------------- + * ATMEL Microcontroller Software Support + * ---------------------------------------------------------------------------- + * Copyright (c) 2008, 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. + * ---------------------------------------------------------------------------- + */ + +//------------------------------------------------------------------------------ +/// \unit +/// +/// !Purpose +/// +/// Interface for configuration the Analog-to-Digital Converter (ADC) peripheral. +/// +/// !Usage +/// +/// -# Configurate the pins for ADC +/// -# Initialize the ADC with ADC_Initialize(). +/// -# Select the active channel using ADC_EnableChannel() +/// -# Start the conversion with ADC_StartConversion() +// -# Wait the end of the conversion by polling status with ADC_GetStatus() +// -# Finally, get the converted data using ADC_GetConvertedData() +/// +//------------------------------------------------------------------------------ +#ifndef ADC12_H +#define ADC12_H + +//------------------------------------------------------------------------------ +// Headers +//------------------------------------------------------------------------------ +#include + +//------------------------------------------------------------------------------ +// Definitions +//------------------------------------------------------------------------------ +#define ADC12_CHANNEL_0 0 +#define ADC12_CHANNEL_1 1 +#define ADC12_CHANNEL_2 2 +#define ADC12_CHANNEL_3 3 +#define ADC12_CHANNEL_4 4 +#define ADC12_CHANNEL_5 5 +#define ADC12_CHANNEL_6 6 +#define ADC12_CHANNEL_7 7 + +//------------------------------------------------------------------------------ +// Macros function of register access +//------------------------------------------------------------------------------ +#define ADC12_CfgModeReg(pAdc, mode) { \ + ASSERT(((mode)&0xF00000C0)== 0, "ADC Bad configuration ADC MR");\ + (pAdc)->ADC12B_MR = (mode);\ + } + +#define ADC12_GetModeReg(pAdc) ((pAdc)->ADC12B_MR) + +#define ADC12_StartConversion(pAdc) ((pAdc)->ADC12B_CR = AT91C_ADC_START) + +#define ADC12_SoftReset(pAdc) ((pAdc)->ADC12B_CR = AT91C_ADC_SWRST) + +#define ADC12_EnableChannel(pAdc, channel) {\ + ASSERT(channel < 8, "ADC Channel not exist");\ + (pAdc)->ADC12B_CHER = (1 << (channel));\ + } + +#define ADC12_DisableChannel (pAdc, channel) {\ + ASSERT((channel) < 8, "ADC Channel not exist");\ + (pAdc)->ADC12B_CHDR = (1 << (channel));\ + } + +#define ADC12_EnableIt(pAdc, mode) {\ + ASSERT(((mode)&0xFFF00000)== 0, "ADC bad interrupt IER");\ + (pAdc)->ADC12B_IER = (mode);\ + } + +#define ADC12_DisableIt(pAdc, mode) {\ + ASSERT(((mode)&0xFFF00000)== 0, "ADC bad interrupt IDR");\ + (pAdc)->ADC12B_IDR = (mode);\ + } + +#define ADC12_EnableDataReadyIt(pAdc) ((pAdc)->ADC12B_IER = AT91C_ADC_DRDY) + +#define ADC12_GetStatus(pAdc) ((pAdc)->ADC12B_SR) + +#define ADC12_GetChannelStatus(pAdc) ((pAdc)->ADC12B_CHSR) + +#define ADC12_GetInterruptMaskStatus(pAdc) ((pAdc)->ADC12B_IMR) + +#define ADC12_GetLastConvertedData(pAdc) ((pAdc)->ADC12B_LCDR) + +#define ADC12_CfgAnalogCtrlReg(pAdc,mode) {\ + ASSERT(((mode) & 0xFFFCFF3C)==0, "ADC bad analog control config");\ + (pAdc)->ADC12B_ACR = (mode);\ + } + +#define ADC12_CfgExtModeReg(pAdc, extmode) {\ + ASSERT(((extmode) & 0xFF00FFFE)==0, "ADC bad extended mode config");\ + (pAdc)->ADC12B_EMR = (extmode);\ + } + +#define ADC12_GetAnalogCtrlReg(pAdc) ((pAdc)->ADC12B_ACR) + +//------------------------------------------------------------------------------ +// Exported functions +//------------------------------------------------------------------------------ +extern void ADC12_Initialize (AT91S_ADC12B *pAdc, + unsigned char idAdc, + unsigned char trgEn, + unsigned char trgSel, + unsigned char sleepMode, + unsigned char resolution, + unsigned int mckClock, + unsigned int adcClock, + unsigned int startupTime, + unsigned int sampleAndHoldTime); +extern unsigned int ADC12_GetConvertedData(AT91S_ADC12B *pAdc, unsigned int channel); +extern unsigned int ADC12_IsInterruptMasked(AT91S_ADC12B *pAdc, unsigned int flag); +extern unsigned int ADC12_IsStatusSet(AT91S_ADC12B *pAdc, unsigned int flag); +extern unsigned char ADC12_IsChannelInterruptStatusSet(unsigned int adc_sr, + unsigned int channel); + +#endif //#ifndef ADC12_H -- cgit v1.2.3