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29 * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
35 * \brief Analog to Digital Converter driver (ADC).
38 * \author Francesco Sacchi <batt@develer.com>
40 * $WIZ$ module_name = "adc"
41 * $WIZ$ module_configuration = "bertos/cfg/cfg_adc.h"
42 * $WIZ$ module_supports = "not atmega103 and not atmega168 and not atmega8"
49 #include <cfg/compiler.h>
50 #include <cfg/debug.h>
52 #include CPU_HEADER(adc)
54 /** Type for ADC return value. */
55 typedef uint16_t adcread_t;
57 /** Type for channel */
58 typedef uint8_t adc_ch_t;
60 #define adc_bits() ADC_BITS
62 adcread_t adc_read(adc_ch_t ch);
66 * Macro used to convert data from adc range (0...(2 ^ADC_BITS - 1)) to
67 * \a y1 ... \a y2 range.
68 * \note \a y1, \a y2 can be negative, and put in ascending or descending order as well.
69 * \note \a data and \a y2 are evaluated only once, \a y1 twice.
71 #define ADC_RANGECONV(data, y1, y2) (((((int32_t)(data)) * ((y2) - (y1))) / ((1 << ADC_BITS) - 1)) + (y1))
73 #endif /* DRV_ADC_H */