不韋 呂 / F746_SD_GraphicEqualizer

Output the audio signal with filtering by graphic equalizer in the *.wav file on the SD card using onboard CODEC. SD カードの *.wav ファイルのオーディオ信号をグラフィック･イコライザを通して，ボードに搭載されているCODEC で出力する．

Dependencies:   F746_GUI F746_SAI_IO SD_PlayerSkeleton FrequencyResponseDrawer

mbed_src_STM32F7/api/PwmOut.h@24:f78f9d0ac262, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 04:07:35 2017 +0000
Revision:
24:f78f9d0ac262
Parent:
16:cbb726ac20d8 
25

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 16:cbb726ac20d8 1 /* mbed Microcontroller Library
MikamiUitOpen 16:cbb726ac20d8 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 16:cbb726ac20d8 3 *
MikamiUitOpen 16:cbb726ac20d8 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 16:cbb726ac20d8 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 16:cbb726ac20d8 6 * You may obtain a copy of the License at
MikamiUitOpen 16:cbb726ac20d8 7 *
MikamiUitOpen 16:cbb726ac20d8 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 16:cbb726ac20d8 9 *
MikamiUitOpen 16:cbb726ac20d8 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 16:cbb726ac20d8 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 16:cbb726ac20d8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 16:cbb726ac20d8 13 * See the License for the specific language governing permissions and
MikamiUitOpen 16:cbb726ac20d8 14 * limitations under the License.
MikamiUitOpen 16:cbb726ac20d8 15 */
MikamiUitOpen 16:cbb726ac20d8 16 #ifndef MBED_PWMOUT_H
MikamiUitOpen 16:cbb726ac20d8 17 #define MBED_PWMOUT_H
MikamiUitOpen 16:cbb726ac20d8 18
MikamiUitOpen 16:cbb726ac20d8 19 #include "platform.h"
MikamiUitOpen 16:cbb726ac20d8 20
MikamiUitOpen 16:cbb726ac20d8 21 #if DEVICE_PWMOUT
MikamiUitOpen 16:cbb726ac20d8 22 #include "pwmout_api.h"
MikamiUitOpen 16:cbb726ac20d8 23
MikamiUitOpen 16:cbb726ac20d8 24 namespace mbed {
MikamiUitOpen 16:cbb726ac20d8 25
MikamiUitOpen 16:cbb726ac20d8 26 /** A pulse-width modulation digital output
MikamiUitOpen 16:cbb726ac20d8 27 *
MikamiUitOpen 16:cbb726ac20d8 28 * Example
MikamiUitOpen 16:cbb726ac20d8 29 * @code
MikamiUitOpen 16:cbb726ac20d8 30 * // Fade a led on.
MikamiUitOpen 16:cbb726ac20d8 31 * #include "mbed.h"
MikamiUitOpen 16:cbb726ac20d8 32 *
MikamiUitOpen 16:cbb726ac20d8 33 * PwmOut led(LED1);
MikamiUitOpen 16:cbb726ac20d8 34 *
MikamiUitOpen 16:cbb726ac20d8 35 * int main() {
MikamiUitOpen 16:cbb726ac20d8 36 * while(1) {
MikamiUitOpen 16:cbb726ac20d8 37 * led = led + 0.01;
MikamiUitOpen 16:cbb726ac20d8 38 * wait(0.2);
MikamiUitOpen 16:cbb726ac20d8 39 * if(led == 1.0) {
MikamiUitOpen 16:cbb726ac20d8 40 * led = 0;
MikamiUitOpen 16:cbb726ac20d8 41 * }
MikamiUitOpen 16:cbb726ac20d8 42 * }
MikamiUitOpen 16:cbb726ac20d8 43 * }
MikamiUitOpen 16:cbb726ac20d8 44 * @endcode
MikamiUitOpen 16:cbb726ac20d8 45 *
MikamiUitOpen 16:cbb726ac20d8 46 * @note
MikamiUitOpen 16:cbb726ac20d8 47 * On the LPC1768 and LPC2368, the PWMs all share the same
MikamiUitOpen 16:cbb726ac20d8 48 * period - if you change the period for one, you change it for all.
MikamiUitOpen 16:cbb726ac20d8 49 * Although routines that change the period maintain the duty cycle
MikamiUitOpen 16:cbb726ac20d8 50 * for its PWM, all other PWMs will require their duty cycle to be
MikamiUitOpen 16:cbb726ac20d8 51 * refreshed.
MikamiUitOpen 16:cbb726ac20d8 52 */
MikamiUitOpen 16:cbb726ac20d8 53 class PwmOut {
MikamiUitOpen 16:cbb726ac20d8 54
MikamiUitOpen 16:cbb726ac20d8 55 public:
MikamiUitOpen 16:cbb726ac20d8 56
MikamiUitOpen 16:cbb726ac20d8 57 /** Create a PwmOut connected to the specified pin
MikamiUitOpen 16:cbb726ac20d8 58 *
MikamiUitOpen 16:cbb726ac20d8 59 * @param pin PwmOut pin to connect to
MikamiUitOpen 16:cbb726ac20d8 60 */
MikamiUitOpen 16:cbb726ac20d8 61 PwmOut(PinName pin) {
MikamiUitOpen 16:cbb726ac20d8 62 pwmout_init(&_pwm, pin);
MikamiUitOpen 16:cbb726ac20d8 63 }
MikamiUitOpen 16:cbb726ac20d8 64
MikamiUitOpen 16:cbb726ac20d8 65 /** Set the ouput duty-cycle, specified as a percentage (float)
MikamiUitOpen 16:cbb726ac20d8 66 *
MikamiUitOpen 16:cbb726ac20d8 67 * @param value A floating-point value representing the output duty-cycle,
MikamiUitOpen 16:cbb726ac20d8 68 * specified as a percentage. The value should lie between
MikamiUitOpen 16:cbb726ac20d8 69 * 0.0f (representing on 0%) and 1.0f (representing on 100%).
MikamiUitOpen 16:cbb726ac20d8 70 * Values outside this range will be saturated to 0.0f or 1.0f.
MikamiUitOpen 16:cbb726ac20d8 71 */
MikamiUitOpen 16:cbb726ac20d8 72 void write(float value) {
MikamiUitOpen 16:cbb726ac20d8 73 pwmout_write(&_pwm, value);
MikamiUitOpen 16:cbb726ac20d8 74 }
MikamiUitOpen 16:cbb726ac20d8 75
MikamiUitOpen 16:cbb726ac20d8 76 /** Return the current output duty-cycle setting, measured as a percentage (float)
MikamiUitOpen 16:cbb726ac20d8 77 *
MikamiUitOpen 16:cbb726ac20d8 78 * @returns
MikamiUitOpen 16:cbb726ac20d8 79 * A floating-point value representing the current duty-cycle being output on the pin,
MikamiUitOpen 16:cbb726ac20d8 80 * measured as a percentage. The returned value will lie between
MikamiUitOpen 16:cbb726ac20d8 81 * 0.0f (representing on 0%) and 1.0f (representing on 100%).
MikamiUitOpen 16:cbb726ac20d8 82 *
MikamiUitOpen 16:cbb726ac20d8 83 * @note
MikamiUitOpen 16:cbb726ac20d8 84 * This value may not match exactly the value set by a previous <write>.
MikamiUitOpen 16:cbb726ac20d8 85 */
MikamiUitOpen 16:cbb726ac20d8 86 float read() {
MikamiUitOpen 16:cbb726ac20d8 87 return pwmout_read(&_pwm);
MikamiUitOpen 16:cbb726ac20d8 88 }
MikamiUitOpen 16:cbb726ac20d8 89
MikamiUitOpen 16:cbb726ac20d8 90 /** Set the PWM period, specified in seconds (float), keeping the duty cycle the same.
MikamiUitOpen 16:cbb726ac20d8 91 *
MikamiUitOpen 16:cbb726ac20d8 92 * @note
MikamiUitOpen 16:cbb726ac20d8 93 * The resolution is currently in microseconds; periods smaller than this
MikamiUitOpen 16:cbb726ac20d8 94 * will be set to zero.
MikamiUitOpen 16:cbb726ac20d8 95 */
MikamiUitOpen 16:cbb726ac20d8 96 void period(float seconds) {
MikamiUitOpen 16:cbb726ac20d8 97 pwmout_period(&_pwm, seconds);
MikamiUitOpen 16:cbb726ac20d8 98 }
MikamiUitOpen 16:cbb726ac20d8 99
MikamiUitOpen 16:cbb726ac20d8 100 /** Set the PWM period, specified in milli-seconds (int), keeping the duty cycle the same.
MikamiUitOpen 16:cbb726ac20d8 101 */
MikamiUitOpen 16:cbb726ac20d8 102 void period_ms(int ms) {
MikamiUitOpen 16:cbb726ac20d8 103 pwmout_period_ms(&_pwm, ms);
MikamiUitOpen 16:cbb726ac20d8 104 }
MikamiUitOpen 16:cbb726ac20d8 105
MikamiUitOpen 16:cbb726ac20d8 106 /** Set the PWM period, specified in micro-seconds (int), keeping the duty cycle the same.
MikamiUitOpen 16:cbb726ac20d8 107 */
MikamiUitOpen 16:cbb726ac20d8 108 void period_us(int us) {
MikamiUitOpen 16:cbb726ac20d8 109 pwmout_period_us(&_pwm, us);
MikamiUitOpen 16:cbb726ac20d8 110 }
MikamiUitOpen 16:cbb726ac20d8 111
MikamiUitOpen 16:cbb726ac20d8 112 /** Set the PWM pulsewidth, specified in seconds (float), keeping the period the same.
MikamiUitOpen 16:cbb726ac20d8 113 */
MikamiUitOpen 16:cbb726ac20d8 114 void pulsewidth(float seconds) {
MikamiUitOpen 16:cbb726ac20d8 115 pwmout_pulsewidth(&_pwm, seconds);
MikamiUitOpen 16:cbb726ac20d8 116 }
MikamiUitOpen 16:cbb726ac20d8 117
MikamiUitOpen 16:cbb726ac20d8 118 /** Set the PWM pulsewidth, specified in milli-seconds (int), keeping the period the same.
MikamiUitOpen 16:cbb726ac20d8 119 */
MikamiUitOpen 16:cbb726ac20d8 120 void pulsewidth_ms(int ms) {
MikamiUitOpen 16:cbb726ac20d8 121 pwmout_pulsewidth_ms(&_pwm, ms);
MikamiUitOpen 16:cbb726ac20d8 122 }
MikamiUitOpen 16:cbb726ac20d8 123
MikamiUitOpen 16:cbb726ac20d8 124 /** Set the PWM pulsewidth, specified in micro-seconds (int), keeping the period the same.
MikamiUitOpen 16:cbb726ac20d8 125 */
MikamiUitOpen 16:cbb726ac20d8 126 void pulsewidth_us(int us) {
MikamiUitOpen 16:cbb726ac20d8 127 pwmout_pulsewidth_us(&_pwm, us);
MikamiUitOpen 16:cbb726ac20d8 128 }
MikamiUitOpen 16:cbb726ac20d8 129
MikamiUitOpen 16:cbb726ac20d8 130 #ifdef MBED_OPERATORS
MikamiUitOpen 16:cbb726ac20d8 131 /** A operator shorthand for write()
MikamiUitOpen 16:cbb726ac20d8 132 */
MikamiUitOpen 16:cbb726ac20d8 133 PwmOut& operator= (float value) {
MikamiUitOpen 16:cbb726ac20d8 134 write(value);
MikamiUitOpen 16:cbb726ac20d8 135 return *this;
MikamiUitOpen 16:cbb726ac20d8 136 }
MikamiUitOpen 16:cbb726ac20d8 137
MikamiUitOpen 16:cbb726ac20d8 138 PwmOut& operator= (PwmOut& rhs) {
MikamiUitOpen 16:cbb726ac20d8 139 write(rhs.read());
MikamiUitOpen 16:cbb726ac20d8 140 return *this;
MikamiUitOpen 16:cbb726ac20d8 141 }
MikamiUitOpen 16:cbb726ac20d8 142
MikamiUitOpen 16:cbb726ac20d8 143 /** An operator shorthand for read()
MikamiUitOpen 16:cbb726ac20d8 144 */
MikamiUitOpen 16:cbb726ac20d8 145 operator float() {
MikamiUitOpen 16:cbb726ac20d8 146 return read();
MikamiUitOpen 16:cbb726ac20d8 147 }
MikamiUitOpen 16:cbb726ac20d8 148 #endif
MikamiUitOpen 16:cbb726ac20d8 149
MikamiUitOpen 16:cbb726ac20d8 150 protected:
MikamiUitOpen 16:cbb726ac20d8 151 pwmout_t _pwm;
MikamiUitOpen 16:cbb726ac20d8 152 };
MikamiUitOpen 16:cbb726ac20d8 153
MikamiUitOpen 16:cbb726ac20d8 154 } // namespace mbed
MikamiUitOpen 16:cbb726ac20d8 155
MikamiUitOpen 16:cbb726ac20d8 156 #endif
MikamiUitOpen 16:cbb726ac20d8 157
MikamiUitOpen 16:cbb726ac20d8 158 #endif