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/common/Stream.cpp@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 #include "Stream.h"
MikamiUitOpen 6:38f7dce055d0 17
MikamiUitOpen 6:38f7dce055d0 18 namespace mbed {
MikamiUitOpen 6:38f7dce055d0 19
MikamiUitOpen 6:38f7dce055d0 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
MikamiUitOpen 6:38f7dce055d0 21 /* open ourselves */
MikamiUitOpen 6:38f7dce055d0 22 char buf[12]; /* :0x12345678 + null byte */
MikamiUitOpen 6:38f7dce055d0 23 std::sprintf(buf, ":%p", this);
MikamiUitOpen 6:38f7dce055d0 24 _file = std::fopen(buf, "w+");
MikamiUitOpen 6:38f7dce055d0 25 mbed_set_unbuffered_stream(_file);
MikamiUitOpen 6:38f7dce055d0 26 }
MikamiUitOpen 6:38f7dce055d0 27
MikamiUitOpen 6:38f7dce055d0 28 Stream::~Stream() {
MikamiUitOpen 6:38f7dce055d0 29 fclose(_file);
MikamiUitOpen 6:38f7dce055d0 30 }
MikamiUitOpen 6:38f7dce055d0 31
MikamiUitOpen 6:38f7dce055d0 32 int Stream::putc(int c) {
MikamiUitOpen 6:38f7dce055d0 33 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 34 return std::fputc(c, _file);
MikamiUitOpen 6:38f7dce055d0 35 }
MikamiUitOpen 6:38f7dce055d0 36 int Stream::puts(const char *s) {
MikamiUitOpen 6:38f7dce055d0 37 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 38 return std::fputs(s, _file);
MikamiUitOpen 6:38f7dce055d0 39 }
MikamiUitOpen 6:38f7dce055d0 40 int Stream::getc() {
MikamiUitOpen 6:38f7dce055d0 41 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 42 return mbed_getc(_file);
MikamiUitOpen 6:38f7dce055d0 43 }
MikamiUitOpen 6:38f7dce055d0 44 char* Stream::gets(char *s, int size) {
MikamiUitOpen 6:38f7dce055d0 45 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 46 return mbed_gets(s,size,_file);
MikamiUitOpen 6:38f7dce055d0 47 }
MikamiUitOpen 6:38f7dce055d0 48
MikamiUitOpen 6:38f7dce055d0 49 int Stream::close() {
MikamiUitOpen 6:38f7dce055d0 50 return 0;
MikamiUitOpen 6:38f7dce055d0 51 }
MikamiUitOpen 6:38f7dce055d0 52
MikamiUitOpen 6:38f7dce055d0 53 ssize_t Stream::write(const void* buffer, size_t length) {
MikamiUitOpen 6:38f7dce055d0 54 const char* ptr = (const char*)buffer;
MikamiUitOpen 6:38f7dce055d0 55 const char* end = ptr + length;
MikamiUitOpen 6:38f7dce055d0 56 while (ptr != end) {
MikamiUitOpen 6:38f7dce055d0 57 if (_putc(*ptr++) == EOF) {
MikamiUitOpen 6:38f7dce055d0 58 break;
MikamiUitOpen 6:38f7dce055d0 59 }
MikamiUitOpen 6:38f7dce055d0 60 }
MikamiUitOpen 6:38f7dce055d0 61 return ptr - (const char*)buffer;
MikamiUitOpen 6:38f7dce055d0 62 }
MikamiUitOpen 6:38f7dce055d0 63
MikamiUitOpen 6:38f7dce055d0 64 ssize_t Stream::read(void* buffer, size_t length) {
MikamiUitOpen 6:38f7dce055d0 65 char* ptr = (char*)buffer;
MikamiUitOpen 6:38f7dce055d0 66 char* end = ptr + length;
MikamiUitOpen 6:38f7dce055d0 67 while (ptr != end) {
MikamiUitOpen 6:38f7dce055d0 68 int c = _getc();
MikamiUitOpen 6:38f7dce055d0 69 if (c==EOF) break;
MikamiUitOpen 6:38f7dce055d0 70 *ptr++ = c;
MikamiUitOpen 6:38f7dce055d0 71 }
MikamiUitOpen 6:38f7dce055d0 72 return ptr - (const char*)buffer;
MikamiUitOpen 6:38f7dce055d0 73 }
MikamiUitOpen 6:38f7dce055d0 74
MikamiUitOpen 6:38f7dce055d0 75 off_t Stream::lseek(off_t offset, int whence) {
MikamiUitOpen 6:38f7dce055d0 76 return 0;
MikamiUitOpen 6:38f7dce055d0 77 }
MikamiUitOpen 6:38f7dce055d0 78
MikamiUitOpen 6:38f7dce055d0 79 int Stream::isatty() {
MikamiUitOpen 6:38f7dce055d0 80 return 0;
MikamiUitOpen 6:38f7dce055d0 81 }
MikamiUitOpen 6:38f7dce055d0 82
MikamiUitOpen 6:38f7dce055d0 83 int Stream::fsync() {
MikamiUitOpen 6:38f7dce055d0 84 return 0;
MikamiUitOpen 6:38f7dce055d0 85 }
MikamiUitOpen 6:38f7dce055d0 86
MikamiUitOpen 6:38f7dce055d0 87 off_t Stream::flen() {
MikamiUitOpen 6:38f7dce055d0 88 return 0;
MikamiUitOpen 6:38f7dce055d0 89 }
MikamiUitOpen 6:38f7dce055d0 90
MikamiUitOpen 6:38f7dce055d0 91 int Stream::printf(const char* format, ...) {
MikamiUitOpen 6:38f7dce055d0 92 std::va_list arg;
MikamiUitOpen 6:38f7dce055d0 93 va_start(arg, format);
MikamiUitOpen 6:38f7dce055d0 94 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 95 int r = vfprintf(_file, format, arg);
MikamiUitOpen 6:38f7dce055d0 96 va_end(arg);
MikamiUitOpen 6:38f7dce055d0 97 return r;
MikamiUitOpen 6:38f7dce055d0 98 }
MikamiUitOpen 6:38f7dce055d0 99
MikamiUitOpen 6:38f7dce055d0 100 int Stream::scanf(const char* format, ...) {
MikamiUitOpen 6:38f7dce055d0 101 std::va_list arg;
MikamiUitOpen 6:38f7dce055d0 102 va_start(arg, format);
MikamiUitOpen 6:38f7dce055d0 103 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 104 int r = vfscanf(_file, format, arg);
MikamiUitOpen 6:38f7dce055d0 105 va_end(arg);
MikamiUitOpen 6:38f7dce055d0 106 return r;
MikamiUitOpen 6:38f7dce055d0 107 }
MikamiUitOpen 6:38f7dce055d0 108
MikamiUitOpen 6:38f7dce055d0 109 int Stream::vprintf(const char* format, std::va_list args) {
MikamiUitOpen 6:38f7dce055d0 110 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 111 int r = vfprintf(_file, format, args);
MikamiUitOpen 6:38f7dce055d0 112 return r;
MikamiUitOpen 6:38f7dce055d0 113 }
MikamiUitOpen 6:38f7dce055d0 114
MikamiUitOpen 6:38f7dce055d0 115 int Stream::vscanf(const char* format, std::va_list args) {
MikamiUitOpen 6:38f7dce055d0 116 fflush(_file);
MikamiUitOpen 6:38f7dce055d0 117 int r = vfscanf(_file, format, args);
MikamiUitOpen 6:38f7dce055d0 118 return r;
MikamiUitOpen 6:38f7dce055d0 119 }
MikamiUitOpen 6:38f7dce055d0 120
MikamiUitOpen 6:38f7dce055d0 121 } // namespace mbed