/** * \file * <!-- * This file is part of BeRTOS. * * Bertos is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * As a special exception, you may use this file as part of a free software * library without restriction. Specifically, if other files instantiate * templates or use macros or inline functions from this file, or you compile * this file and link it with other files to produce an executable, this * file does not by itself cause the resulting executable to be covered by * the GNU General Public License. This exception does not however * invalidate any other reasons why the executable file might be covered by * the GNU General Public License. * * Copyright 2005 Develer S.r.l. (http://www.develer.com/) * * --> * * \defgroup adc Generic ADC driver * \ingroup drivers * \{ * \brief Analog to Digital Converter driver (ADC). * * <b>Configuration file</b>: cfg_adc.h * * \author Francesco Sacchi <batt@develer.com> * * $WIZ$ module_name = "adc" * $WIZ$ module_configuration = "bertos/cfg/cfg_adc.h" * $WIZ$ module_supports = "not atmega103" */ #ifndef DRV_ADC_H #define DRV_ADC_H #include <cfg/compiler.h> #include <cfg/debug.h> #include <cpu/attr.h> #include CPU_HEADER(adc) /** Type for ADC return value. */ typedef uint16_t adcread_t; /** Type for channel */ typedef uint8_t adc_ch_t; #define adc_bits() ADC_BITS adcread_t adc_read(adc_ch_t ch); void adc_init(void); /** * Macro used to convert data from adc range (0...(2 ^ADC_BITS - 1)) to * \a y1 ... \a y2 range. * \note \a y1, \a y2 can be negative, and put in ascending or descending order as well. * \note \a data and \a y2 are evaluated only once, \a y1 twice. */ #define ADC_RANGECONV(data, y1, y2) (((((int32_t)(data)) * ((y2) - (y1))) / ((1 << ADC_BITS) - 1)) + (y1)) /** \} */ //defgroup adc #endif /* DRV_ADC_H */