不韋 呂 / F746_AcousticEffector_MIC

Audio singal input and output example for DISCO-F746. Input: MEMS mic, Output: CN10 OUT, Acoustic effect: echo and frequency shift. DISCO-F746 によるオーディオ信号入出力．入力：MEMS マイク，出力：CN10 OUT，音響効果：エコー，周波数変換．

Dependencies:   F746_GUI F746_SAI_IO

mbed_src_STM32F7/api/AnalogIn.h@10:56f2f01df983, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 13:44:13 2017 +0000
Revision:
10:56f2f01df983
Parent:
6:38f7dce055d0 
11

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 6:38f7dce055d0 1 /* mbed Microcontroller Library
MikamiUitOpen 6:38f7dce055d0 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 6:38f7dce055d0 3 *
MikamiUitOpen 6:38f7dce055d0 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 6:38f7dce055d0 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 6:38f7dce055d0 6 * You may obtain a copy of the License at
MikamiUitOpen 6:38f7dce055d0 7 *
MikamiUitOpen 6:38f7dce055d0 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 6:38f7dce055d0 9 *
MikamiUitOpen 6:38f7dce055d0 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 6:38f7dce055d0 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 6:38f7dce055d0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 6:38f7dce055d0 13 * See the License for the specific language governing permissions and
MikamiUitOpen 6:38f7dce055d0 14 * limitations under the License.
MikamiUitOpen 6:38f7dce055d0 15 */
MikamiUitOpen 6:38f7dce055d0 16 #ifndef MBED_ANALOGIN_H
MikamiUitOpen 6:38f7dce055d0 17 #define MBED_ANALOGIN_H
MikamiUitOpen 6:38f7dce055d0 18
MikamiUitOpen 6:38f7dce055d0 19 #include "platform.h"
MikamiUitOpen 6:38f7dce055d0 20
MikamiUitOpen 6:38f7dce055d0 21 #if DEVICE_ANALOGIN
MikamiUitOpen 6:38f7dce055d0 22
MikamiUitOpen 6:38f7dce055d0 23 #include "analogin_api.h"
MikamiUitOpen 6:38f7dce055d0 24
MikamiUitOpen 6:38f7dce055d0 25 namespace mbed {
MikamiUitOpen 6:38f7dce055d0 26
MikamiUitOpen 6:38f7dce055d0 27 /** An analog input, used for reading the voltage on a pin
MikamiUitOpen 6:38f7dce055d0 28 *
MikamiUitOpen 6:38f7dce055d0 29 * Example:
MikamiUitOpen 6:38f7dce055d0 30 * @code
MikamiUitOpen 6:38f7dce055d0 31 * // Print messages when the AnalogIn is greater than 50%
MikamiUitOpen 6:38f7dce055d0 32 *
MikamiUitOpen 6:38f7dce055d0 33 * #include "mbed.h"
MikamiUitOpen 6:38f7dce055d0 34 *
MikamiUitOpen 6:38f7dce055d0 35 * AnalogIn temperature(p20);
MikamiUitOpen 6:38f7dce055d0 36 *
MikamiUitOpen 6:38f7dce055d0 37 * int main() {
MikamiUitOpen 6:38f7dce055d0 38 * while(1) {
MikamiUitOpen 6:38f7dce055d0 39 * if(temperature > 0.5) {
MikamiUitOpen 6:38f7dce055d0 40 * printf("Too hot! (%f)", temperature.read());
MikamiUitOpen 6:38f7dce055d0 41 * }
MikamiUitOpen 6:38f7dce055d0 42 * }
MikamiUitOpen 6:38f7dce055d0 43 * }
MikamiUitOpen 6:38f7dce055d0 44 * @endcode
MikamiUitOpen 6:38f7dce055d0 45 */
MikamiUitOpen 6:38f7dce055d0 46 class AnalogIn {
MikamiUitOpen 6:38f7dce055d0 47
MikamiUitOpen 6:38f7dce055d0 48 public:
MikamiUitOpen 6:38f7dce055d0 49
MikamiUitOpen 6:38f7dce055d0 50 /** Create an AnalogIn, connected to the specified pin
MikamiUitOpen 6:38f7dce055d0 51 *
MikamiUitOpen 6:38f7dce055d0 52 * @param pin AnalogIn pin to connect to
MikamiUitOpen 6:38f7dce055d0 53 * @param name (optional) A string to identify the object
MikamiUitOpen 6:38f7dce055d0 54 */
MikamiUitOpen 6:38f7dce055d0 55 AnalogIn(PinName pin) {
MikamiUitOpen 6:38f7dce055d0 56 analogin_init(&_adc, pin);
MikamiUitOpen 6:38f7dce055d0 57 }
MikamiUitOpen 6:38f7dce055d0 58
MikamiUitOpen 6:38f7dce055d0 59 /** Read the input voltage, represented as a float in the range [0.0, 1.0]
MikamiUitOpen 6:38f7dce055d0 60 *
MikamiUitOpen 6:38f7dce055d0 61 * @returns A floating-point value representing the current input voltage, measured as a percentage
MikamiUitOpen 6:38f7dce055d0 62 */
MikamiUitOpen 6:38f7dce055d0 63 float read() {
MikamiUitOpen 6:38f7dce055d0 64 return analogin_read(&_adc);
MikamiUitOpen 6:38f7dce055d0 65 }
MikamiUitOpen 6:38f7dce055d0 66
MikamiUitOpen 6:38f7dce055d0 67 /** Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
MikamiUitOpen 6:38f7dce055d0 68 *
MikamiUitOpen 6:38f7dce055d0 69 * @returns
MikamiUitOpen 6:38f7dce055d0 70 * 16-bit unsigned short representing the current input voltage, normalised to a 16-bit value
MikamiUitOpen 6:38f7dce055d0 71 */
MikamiUitOpen 6:38f7dce055d0 72 unsigned short read_u16() {
MikamiUitOpen 6:38f7dce055d0 73 return analogin_read_u16(&_adc);
MikamiUitOpen 6:38f7dce055d0 74 }
MikamiUitOpen 6:38f7dce055d0 75
MikamiUitOpen 6:38f7dce055d0 76 #ifdef MBED_OPERATORS
MikamiUitOpen 6:38f7dce055d0 77 /** An operator shorthand for read()
MikamiUitOpen 6:38f7dce055d0 78 *
MikamiUitOpen 6:38f7dce055d0 79 * The float() operator can be used as a shorthand for read() to simplify common code sequences
MikamiUitOpen 6:38f7dce055d0 80 *
MikamiUitOpen 6:38f7dce055d0 81 * Example:
MikamiUitOpen 6:38f7dce055d0 82 * @code
MikamiUitOpen 6:38f7dce055d0 83 * float x = volume.read();
MikamiUitOpen 6:38f7dce055d0 84 * float x = volume;
MikamiUitOpen 6:38f7dce055d0 85 *
MikamiUitOpen 6:38f7dce055d0 86 * if(volume.read() > 0.25) { ... }
MikamiUitOpen 6:38f7dce055d0 87 * if(volume > 0.25) { ... }
MikamiUitOpen 6:38f7dce055d0 88 * @endcode
MikamiUitOpen 6:38f7dce055d0 89 */
MikamiUitOpen 6:38f7dce055d0 90 operator float() {
MikamiUitOpen 6:38f7dce055d0 91 return read();
MikamiUitOpen 6:38f7dce055d0 92 }
MikamiUitOpen 6:38f7dce055d0 93 #endif
MikamiUitOpen 6:38f7dce055d0 94
MikamiUitOpen 6:38f7dce055d0 95 protected:
MikamiUitOpen 6:38f7dce055d0 96 analogin_t _adc;
MikamiUitOpen 6:38f7dce055d0 97 };
MikamiUitOpen 6:38f7dce055d0 98
MikamiUitOpen 6:38f7dce055d0 99 } // namespace mbed
MikamiUitOpen 6:38f7dce055d0 100
MikamiUitOpen 6:38f7dce055d0 101 #endif
MikamiUitOpen 6:38f7dce055d0 102
MikamiUitOpen 6:38f7dce055d0 103 #endif