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/common/RawSerial.cpp@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 #include "RawSerial.h"
MikamiUitOpen 16:cbb726ac20d8 17 #include "wait_api.h"
MikamiUitOpen 16:cbb726ac20d8 18 #include <cstdarg>
MikamiUitOpen 16:cbb726ac20d8 19
MikamiUitOpen 16:cbb726ac20d8 20 #if DEVICE_SERIAL
MikamiUitOpen 16:cbb726ac20d8 21
MikamiUitOpen 16:cbb726ac20d8 22 #define STRING_STACK_LIMIT 120
MikamiUitOpen 16:cbb726ac20d8 23
MikamiUitOpen 16:cbb726ac20d8 24 namespace mbed {
MikamiUitOpen 16:cbb726ac20d8 25
MikamiUitOpen 16:cbb726ac20d8 26 RawSerial::RawSerial(PinName tx, PinName rx) : SerialBase(tx, rx) {
MikamiUitOpen 16:cbb726ac20d8 27 }
MikamiUitOpen 16:cbb726ac20d8 28
MikamiUitOpen 16:cbb726ac20d8 29 int RawSerial::getc() {
MikamiUitOpen 16:cbb726ac20d8 30 return _base_getc();
MikamiUitOpen 16:cbb726ac20d8 31 }
MikamiUitOpen 16:cbb726ac20d8 32
MikamiUitOpen 16:cbb726ac20d8 33 int RawSerial::putc(int c) {
MikamiUitOpen 16:cbb726ac20d8 34 return _base_putc(c);
MikamiUitOpen 16:cbb726ac20d8 35 }
MikamiUitOpen 16:cbb726ac20d8 36
MikamiUitOpen 16:cbb726ac20d8 37 int RawSerial::puts(const char *str) {
MikamiUitOpen 16:cbb726ac20d8 38 while (*str)
MikamiUitOpen 16:cbb726ac20d8 39 putc(*str ++);
MikamiUitOpen 16:cbb726ac20d8 40 return 0;
MikamiUitOpen 16:cbb726ac20d8 41 }
MikamiUitOpen 16:cbb726ac20d8 42
MikamiUitOpen 16:cbb726ac20d8 43 // Experimental support for printf in RawSerial. No Stream inheritance
MikamiUitOpen 16:cbb726ac20d8 44 // means we can't call printf() directly, so we use sprintf() instead.
MikamiUitOpen 16:cbb726ac20d8 45 // We only call malloc() for the sprintf() buffer if the buffer
MikamiUitOpen 16:cbb726ac20d8 46 // length is above a certain threshold, otherwise we use just the stack.
MikamiUitOpen 16:cbb726ac20d8 47 int RawSerial::printf(const char *format, ...) {
MikamiUitOpen 16:cbb726ac20d8 48 std::va_list arg;
MikamiUitOpen 16:cbb726ac20d8 49 va_start(arg, format);
MikamiUitOpen 16:cbb726ac20d8 50 // ARMCC microlib does not properly handle a size of 0.
MikamiUitOpen 16:cbb726ac20d8 51 // As a workaround supply a dummy buffer with a size of 1.
MikamiUitOpen 16:cbb726ac20d8 52 char dummy_buf[1];
MikamiUitOpen 16:cbb726ac20d8 53 int len = vsnprintf(dummy_buf, sizeof(dummy_buf), format, arg);
MikamiUitOpen 16:cbb726ac20d8 54 if (len < STRING_STACK_LIMIT) {
MikamiUitOpen 16:cbb726ac20d8 55 char temp[STRING_STACK_LIMIT];
MikamiUitOpen 16:cbb726ac20d8 56 vsprintf(temp, format, arg);
MikamiUitOpen 16:cbb726ac20d8 57 puts(temp);
MikamiUitOpen 16:cbb726ac20d8 58 } else {
MikamiUitOpen 16:cbb726ac20d8 59 char *temp = new char[len + 1];
MikamiUitOpen 16:cbb726ac20d8 60 vsprintf(temp, format, arg);
MikamiUitOpen 16:cbb726ac20d8 61 puts(temp);
MikamiUitOpen 16:cbb726ac20d8 62 delete[] temp;
MikamiUitOpen 16:cbb726ac20d8 63 }
MikamiUitOpen 16:cbb726ac20d8 64 va_end(arg);
MikamiUitOpen 16:cbb726ac20d8 65 return len;
MikamiUitOpen 16:cbb726ac20d8 66 }
MikamiUitOpen 16:cbb726ac20d8 67
MikamiUitOpen 16:cbb726ac20d8 68 } // namespace mbed
MikamiUitOpen 16:cbb726ac20d8 69
MikamiUitOpen 16:cbb726ac20d8 70 #endif