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analog_util.h
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1/*
2 * Copyright (C) 2015 Freie Universität Berlin
3 *
4 * This file is subject to the terms and conditions of the GNU Lesser
5 * General Public License v2.1. See the file LICENSE in the top level
6 * directory for more details.
7 */
8
21#ifndef ANALOG_UTIL_H
22#define ANALOG_UTIL_H
23
24#include <stdint.h>
25
26#include "periph/adc.h"
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
45int32_t adc_util_map(int sample, adc_res_t res, int32_t min, int32_t max);
46
60float adc_util_mapf(int sample, adc_res_t res, float min, float max);
61
74uint16_t dac_util_map(int value, int min, int max);
75
87uint16_t dac_util_mapf(float value, float min, float max);
88
89#ifdef __cplusplus
90}
91#endif
92
93#endif /* ANALOG_UTIL_H */
adc.h
Low-level ADC peripheral driver interface definitions.
adc_res_t
adc_res_t
Possible ADC resolution settings.
Definition adc.h:93
dac_util_mapf
uint16_t dac_util_mapf(float value, float min, float max)
Helper function to map a given float value range to a valid DAC value.
adc_util_mapf
float adc_util_mapf(int sample, adc_res_t res, float min, float max)
Map a sampled ADC value to a given range (using floating point arithmetic)
dac_util_map
uint16_t dac_util_map(int value, int min, int max)
Map a value out of the given range to a 16-bit unsigned int.
adc_util_map
int32_t adc_util_map(int sample, adc_res_t res, int32_t min, int32_t max)
Map a sampled ADC value to a given range.