Mladen Adamovic / Spectrogram

Final version.

Dependencies:   F746_GUI F746_SAI_IO UIT_FFT_Real

Fork of F746_Spectrogram by 不韋 呂

mbed_src_STM32F7/api/AnalogIn.h@4:c1beacfc42c7, 2016-10-02 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Oct 02 10:51:10 2016 +0000
Revision:
4:c1beacfc42c7
5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 4:c1beacfc42c7 1 /* mbed Microcontroller Library
MikamiUitOpen 4:c1beacfc42c7 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 4:c1beacfc42c7 3 *
MikamiUitOpen 4:c1beacfc42c7 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 4:c1beacfc42c7 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 4:c1beacfc42c7 6 * You may obtain a copy of the License at
MikamiUitOpen 4:c1beacfc42c7 7 *
MikamiUitOpen 4:c1beacfc42c7 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 4:c1beacfc42c7 9 *
MikamiUitOpen 4:c1beacfc42c7 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 4:c1beacfc42c7 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 4:c1beacfc42c7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 4:c1beacfc42c7 13 * See the License for the specific language governing permissions and
MikamiUitOpen 4:c1beacfc42c7 14 * limitations under the License.
MikamiUitOpen 4:c1beacfc42c7 15 */
MikamiUitOpen 4:c1beacfc42c7 16 #ifndef MBED_ANALOGIN_H
MikamiUitOpen 4:c1beacfc42c7 17 #define MBED_ANALOGIN_H
MikamiUitOpen 4:c1beacfc42c7 18
MikamiUitOpen 4:c1beacfc42c7 19 #include "platform.h"
MikamiUitOpen 4:c1beacfc42c7 20
MikamiUitOpen 4:c1beacfc42c7 21 #if DEVICE_ANALOGIN
MikamiUitOpen 4:c1beacfc42c7 22
MikamiUitOpen 4:c1beacfc42c7 23 #include "analogin_api.h"
MikamiUitOpen 4:c1beacfc42c7 24
MikamiUitOpen 4:c1beacfc42c7 25 namespace mbed {
MikamiUitOpen 4:c1beacfc42c7 26
MikamiUitOpen 4:c1beacfc42c7 27 /** An analog input, used for reading the voltage on a pin
MikamiUitOpen 4:c1beacfc42c7 28 *
MikamiUitOpen 4:c1beacfc42c7 29 * Example:
MikamiUitOpen 4:c1beacfc42c7 30 * @code
MikamiUitOpen 4:c1beacfc42c7 31 * // Print messages when the AnalogIn is greater than 50%
MikamiUitOpen 4:c1beacfc42c7 32 *
MikamiUitOpen 4:c1beacfc42c7 33 * #include "mbed.h"
MikamiUitOpen 4:c1beacfc42c7 34 *
MikamiUitOpen 4:c1beacfc42c7 35 * AnalogIn temperature(p20);
MikamiUitOpen 4:c1beacfc42c7 36 *
MikamiUitOpen 4:c1beacfc42c7 37 * int main() {
MikamiUitOpen 4:c1beacfc42c7 38 * while(1) {
MikamiUitOpen 4:c1beacfc42c7 39 * if(temperature > 0.5) {
MikamiUitOpen 4:c1beacfc42c7 40 * printf("Too hot! (%f)", temperature.read());
MikamiUitOpen 4:c1beacfc42c7 41 * }
MikamiUitOpen 4:c1beacfc42c7 42 * }
MikamiUitOpen 4:c1beacfc42c7 43 * }
MikamiUitOpen 4:c1beacfc42c7 44 * @endcode
MikamiUitOpen 4:c1beacfc42c7 45 */
MikamiUitOpen 4:c1beacfc42c7 46 class AnalogIn {
MikamiUitOpen 4:c1beacfc42c7 47
MikamiUitOpen 4:c1beacfc42c7 48 public:
MikamiUitOpen 4:c1beacfc42c7 49
MikamiUitOpen 4:c1beacfc42c7 50 /** Create an AnalogIn, connected to the specified pin
MikamiUitOpen 4:c1beacfc42c7 51 *
MikamiUitOpen 4:c1beacfc42c7 52 * @param pin AnalogIn pin to connect to
MikamiUitOpen 4:c1beacfc42c7 53 * @param name (optional) A string to identify the object
MikamiUitOpen 4:c1beacfc42c7 54 */
MikamiUitOpen 4:c1beacfc42c7 55 AnalogIn(PinName pin) {
MikamiUitOpen 4:c1beacfc42c7 56 analogin_init(&_adc, pin);
MikamiUitOpen 4:c1beacfc42c7 57 }
MikamiUitOpen 4:c1beacfc42c7 58
MikamiUitOpen 4:c1beacfc42c7 59 /** Read the input voltage, represented as a float in the range [0.0, 1.0]
MikamiUitOpen 4:c1beacfc42c7 60 *
MikamiUitOpen 4:c1beacfc42c7 61 * @returns A floating-point value representing the current input voltage, measured as a percentage
MikamiUitOpen 4:c1beacfc42c7 62 */
MikamiUitOpen 4:c1beacfc42c7 63 float read() {
MikamiUitOpen 4:c1beacfc42c7 64 return analogin_read(&_adc);
MikamiUitOpen 4:c1beacfc42c7 65 }
MikamiUitOpen 4:c1beacfc42c7 66
MikamiUitOpen 4:c1beacfc42c7 67 /** Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
MikamiUitOpen 4:c1beacfc42c7 68 *
MikamiUitOpen 4:c1beacfc42c7 69 * @returns
MikamiUitOpen 4:c1beacfc42c7 70 * 16-bit unsigned short representing the current input voltage, normalised to a 16-bit value
MikamiUitOpen 4:c1beacfc42c7 71 */
MikamiUitOpen 4:c1beacfc42c7 72 unsigned short read_u16() {
MikamiUitOpen 4:c1beacfc42c7 73 return analogin_read_u16(&_adc);
MikamiUitOpen 4:c1beacfc42c7 74 }
MikamiUitOpen 4:c1beacfc42c7 75
MikamiUitOpen 4:c1beacfc42c7 76 #ifdef MBED_OPERATORS
MikamiUitOpen 4:c1beacfc42c7 77 /** An operator shorthand for read()
MikamiUitOpen 4:c1beacfc42c7 78 *
MikamiUitOpen 4:c1beacfc42c7 79 * The float() operator can be used as a shorthand for read() to simplify common code sequences
MikamiUitOpen 4:c1beacfc42c7 80 *
MikamiUitOpen 4:c1beacfc42c7 81 * Example:
MikamiUitOpen 4:c1beacfc42c7 82 * @code
MikamiUitOpen 4:c1beacfc42c7 83 * float x = volume.read();
MikamiUitOpen 4:c1beacfc42c7 84 * float x = volume;
MikamiUitOpen 4:c1beacfc42c7 85 *
MikamiUitOpen 4:c1beacfc42c7 86 * if(volume.read() > 0.25) { ... }
MikamiUitOpen 4:c1beacfc42c7 87 * if(volume > 0.25) { ... }
MikamiUitOpen 4:c1beacfc42c7 88 * @endcode
MikamiUitOpen 4:c1beacfc42c7 89 */
MikamiUitOpen 4:c1beacfc42c7 90 operator float() {
MikamiUitOpen 4:c1beacfc42c7 91 return read();
MikamiUitOpen 4:c1beacfc42c7 92 }
MikamiUitOpen 4:c1beacfc42c7 93 #endif
MikamiUitOpen 4:c1beacfc42c7 94
MikamiUitOpen 4:c1beacfc42c7 95 protected:
MikamiUitOpen 4:c1beacfc42c7 96 analogin_t _adc;
MikamiUitOpen 4:c1beacfc42c7 97 };
MikamiUitOpen 4:c1beacfc42c7 98
MikamiUitOpen 4:c1beacfc42c7 99 } // namespace mbed
MikamiUitOpen 4:c1beacfc42c7 100
MikamiUitOpen 4:c1beacfc42c7 101 #endif
MikamiUitOpen 4:c1beacfc42c7 102
MikamiUitOpen 4:c1beacfc42c7 103 #endif