不韋 呂 / F746_Spectrogram

Realtime spectrogram for DISCO-F746NG. On-board MEMS microphone is used for input sound signal. リアルタイムスペクトログラム．入力：MEMSマイク

Dependencies:   F746_GUI F746_SAI_IO UIT_FFT_Real

mbed_src_STM32F7/common/Stream.cpp@6:b3885567877c, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 13:43:07 2017 +0000
Revision:
6:b3885567877c
Parent:
4:c1beacfc42c7 
7

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 #include "Stream.h"
MikamiUitOpen 4:c1beacfc42c7 17
MikamiUitOpen 4:c1beacfc42c7 18 namespace mbed {
MikamiUitOpen 4:c1beacfc42c7 19
MikamiUitOpen 4:c1beacfc42c7 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
MikamiUitOpen 4:c1beacfc42c7 21 /* open ourselves */
MikamiUitOpen 4:c1beacfc42c7 22 char buf[12]; /* :0x12345678 + null byte */
MikamiUitOpen 4:c1beacfc42c7 23 std::sprintf(buf, ":%p", this);
MikamiUitOpen 4:c1beacfc42c7 24 _file = std::fopen(buf, "w+");
MikamiUitOpen 4:c1beacfc42c7 25 mbed_set_unbuffered_stream(_file);
MikamiUitOpen 4:c1beacfc42c7 26 }
MikamiUitOpen 4:c1beacfc42c7 27
MikamiUitOpen 4:c1beacfc42c7 28 Stream::~Stream() {
MikamiUitOpen 4:c1beacfc42c7 29 fclose(_file);
MikamiUitOpen 4:c1beacfc42c7 30 }
MikamiUitOpen 4:c1beacfc42c7 31
MikamiUitOpen 4:c1beacfc42c7 32 int Stream::putc(int c) {
MikamiUitOpen 4:c1beacfc42c7 33 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 34 return std::fputc(c, _file);
MikamiUitOpen 4:c1beacfc42c7 35 }
MikamiUitOpen 4:c1beacfc42c7 36 int Stream::puts(const char *s) {
MikamiUitOpen 4:c1beacfc42c7 37 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 38 return std::fputs(s, _file);
MikamiUitOpen 4:c1beacfc42c7 39 }
MikamiUitOpen 4:c1beacfc42c7 40 int Stream::getc() {
MikamiUitOpen 4:c1beacfc42c7 41 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 42 return mbed_getc(_file);
MikamiUitOpen 4:c1beacfc42c7 43 }
MikamiUitOpen 4:c1beacfc42c7 44 char* Stream::gets(char *s, int size) {
MikamiUitOpen 4:c1beacfc42c7 45 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 46 return mbed_gets(s,size,_file);
MikamiUitOpen 4:c1beacfc42c7 47 }
MikamiUitOpen 4:c1beacfc42c7 48
MikamiUitOpen 4:c1beacfc42c7 49 int Stream::close() {
MikamiUitOpen 4:c1beacfc42c7 50 return 0;
MikamiUitOpen 4:c1beacfc42c7 51 }
MikamiUitOpen 4:c1beacfc42c7 52
MikamiUitOpen 4:c1beacfc42c7 53 ssize_t Stream::write(const void* buffer, size_t length) {
MikamiUitOpen 4:c1beacfc42c7 54 const char* ptr = (const char*)buffer;
MikamiUitOpen 4:c1beacfc42c7 55 const char* end = ptr + length;
MikamiUitOpen 4:c1beacfc42c7 56 while (ptr != end) {
MikamiUitOpen 4:c1beacfc42c7 57 if (_putc(*ptr++) == EOF) {
MikamiUitOpen 4:c1beacfc42c7 58 break;
MikamiUitOpen 4:c1beacfc42c7 59 }
MikamiUitOpen 4:c1beacfc42c7 60 }
MikamiUitOpen 4:c1beacfc42c7 61 return ptr - (const char*)buffer;
MikamiUitOpen 4:c1beacfc42c7 62 }
MikamiUitOpen 4:c1beacfc42c7 63
MikamiUitOpen 4:c1beacfc42c7 64 ssize_t Stream::read(void* buffer, size_t length) {
MikamiUitOpen 4:c1beacfc42c7 65 char* ptr = (char*)buffer;
MikamiUitOpen 4:c1beacfc42c7 66 char* end = ptr + length;
MikamiUitOpen 4:c1beacfc42c7 67 while (ptr != end) {
MikamiUitOpen 4:c1beacfc42c7 68 int c = _getc();
MikamiUitOpen 4:c1beacfc42c7 69 if (c==EOF) break;
MikamiUitOpen 4:c1beacfc42c7 70 *ptr++ = c;
MikamiUitOpen 4:c1beacfc42c7 71 }
MikamiUitOpen 4:c1beacfc42c7 72 return ptr - (const char*)buffer;
MikamiUitOpen 4:c1beacfc42c7 73 }
MikamiUitOpen 4:c1beacfc42c7 74
MikamiUitOpen 4:c1beacfc42c7 75 off_t Stream::lseek(off_t offset, int whence) {
MikamiUitOpen 4:c1beacfc42c7 76 return 0;
MikamiUitOpen 4:c1beacfc42c7 77 }
MikamiUitOpen 4:c1beacfc42c7 78
MikamiUitOpen 4:c1beacfc42c7 79 int Stream::isatty() {
MikamiUitOpen 4:c1beacfc42c7 80 return 0;
MikamiUitOpen 4:c1beacfc42c7 81 }
MikamiUitOpen 4:c1beacfc42c7 82
MikamiUitOpen 4:c1beacfc42c7 83 int Stream::fsync() {
MikamiUitOpen 4:c1beacfc42c7 84 return 0;
MikamiUitOpen 4:c1beacfc42c7 85 }
MikamiUitOpen 4:c1beacfc42c7 86
MikamiUitOpen 4:c1beacfc42c7 87 off_t Stream::flen() {
MikamiUitOpen 4:c1beacfc42c7 88 return 0;
MikamiUitOpen 4:c1beacfc42c7 89 }
MikamiUitOpen 4:c1beacfc42c7 90
MikamiUitOpen 4:c1beacfc42c7 91 int Stream::printf(const char* format, ...) {
MikamiUitOpen 4:c1beacfc42c7 92 std::va_list arg;
MikamiUitOpen 4:c1beacfc42c7 93 va_start(arg, format);
MikamiUitOpen 4:c1beacfc42c7 94 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 95 int r = vfprintf(_file, format, arg);
MikamiUitOpen 4:c1beacfc42c7 96 va_end(arg);
MikamiUitOpen 4:c1beacfc42c7 97 return r;
MikamiUitOpen 4:c1beacfc42c7 98 }
MikamiUitOpen 4:c1beacfc42c7 99
MikamiUitOpen 4:c1beacfc42c7 100 int Stream::scanf(const char* format, ...) {
MikamiUitOpen 4:c1beacfc42c7 101 std::va_list arg;
MikamiUitOpen 4:c1beacfc42c7 102 va_start(arg, format);
MikamiUitOpen 4:c1beacfc42c7 103 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 104 int r = vfscanf(_file, format, arg);
MikamiUitOpen 4:c1beacfc42c7 105 va_end(arg);
MikamiUitOpen 4:c1beacfc42c7 106 return r;
MikamiUitOpen 4:c1beacfc42c7 107 }
MikamiUitOpen 4:c1beacfc42c7 108
MikamiUitOpen 4:c1beacfc42c7 109 int Stream::vprintf(const char* format, std::va_list args) {
MikamiUitOpen 4:c1beacfc42c7 110 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 111 int r = vfprintf(_file, format, args);
MikamiUitOpen 4:c1beacfc42c7 112 return r;
MikamiUitOpen 4:c1beacfc42c7 113 }
MikamiUitOpen 4:c1beacfc42c7 114
MikamiUitOpen 4:c1beacfc42c7 115 int Stream::vscanf(const char* format, std::va_list args) {
MikamiUitOpen 4:c1beacfc42c7 116 fflush(_file);
MikamiUitOpen 4:c1beacfc42c7 117 int r = vfscanf(_file, format, args);
MikamiUitOpen 4:c1beacfc42c7 118 return r;
MikamiUitOpen 4:c1beacfc42c7 119 }
MikamiUitOpen 4:c1beacfc42c7 120
MikamiUitOpen 4:c1beacfc42c7 121 } // namespace mbed