不韋 呂 / F746_SD_Player_Demo

Demo program for library named SD_PlayerSkeleton of SD card player skeleton. SD カードプレーヤのための骨組みとして使うためのライブラリ SD_PlayerSkeleton の使用例．このプログラムについては，CQ出版社インターフェース誌 2018年7月号で解説している．

Dependencies:   F746_GUI F746_SAI_IO SD_PlayerSkeleton

mbed_src_STM32F7/common/RawSerial.cpp@19:3c3833ec00d2, 2017-04-09 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Apr 09 12:44:17 2017 +0000
Revision:
19:3c3833ec00d2
Parent:
2:cf42e62a97dc 
20

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 2:cf42e62a97dc 1 /* mbed Microcontroller Library
MikamiUitOpen 2:cf42e62a97dc 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 2:cf42e62a97dc 3 *
MikamiUitOpen 2:cf42e62a97dc 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 2:cf42e62a97dc 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 2:cf42e62a97dc 6 * You may obtain a copy of the License at
MikamiUitOpen 2:cf42e62a97dc 7 *
MikamiUitOpen 2:cf42e62a97dc 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 2:cf42e62a97dc 9 *
MikamiUitOpen 2:cf42e62a97dc 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 2:cf42e62a97dc 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 2:cf42e62a97dc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 2:cf42e62a97dc 13 * See the License for the specific language governing permissions and
MikamiUitOpen 2:cf42e62a97dc 14 * limitations under the License.
MikamiUitOpen 2:cf42e62a97dc 15 */
MikamiUitOpen 2:cf42e62a97dc 16 #include "RawSerial.h"
MikamiUitOpen 2:cf42e62a97dc 17 #include "wait_api.h"
MikamiUitOpen 2:cf42e62a97dc 18 #include <cstdarg>
MikamiUitOpen 2:cf42e62a97dc 19
MikamiUitOpen 2:cf42e62a97dc 20 #if DEVICE_SERIAL
MikamiUitOpen 2:cf42e62a97dc 21
MikamiUitOpen 2:cf42e62a97dc 22 #define STRING_STACK_LIMIT 120
MikamiUitOpen 2:cf42e62a97dc 23
MikamiUitOpen 2:cf42e62a97dc 24 namespace mbed {
MikamiUitOpen 2:cf42e62a97dc 25
MikamiUitOpen 2:cf42e62a97dc 26 RawSerial::RawSerial(PinName tx, PinName rx) : SerialBase(tx, rx) {
MikamiUitOpen 2:cf42e62a97dc 27 }
MikamiUitOpen 2:cf42e62a97dc 28
MikamiUitOpen 2:cf42e62a97dc 29 int RawSerial::getc() {
MikamiUitOpen 2:cf42e62a97dc 30 return _base_getc();
MikamiUitOpen 2:cf42e62a97dc 31 }
MikamiUitOpen 2:cf42e62a97dc 32
MikamiUitOpen 2:cf42e62a97dc 33 int RawSerial::putc(int c) {
MikamiUitOpen 2:cf42e62a97dc 34 return _base_putc(c);
MikamiUitOpen 2:cf42e62a97dc 35 }
MikamiUitOpen 2:cf42e62a97dc 36
MikamiUitOpen 2:cf42e62a97dc 37 int RawSerial::puts(const char *str) {
MikamiUitOpen 2:cf42e62a97dc 38 while (*str)
MikamiUitOpen 2:cf42e62a97dc 39 putc(*str ++);
MikamiUitOpen 2:cf42e62a97dc 40 return 0;
MikamiUitOpen 2:cf42e62a97dc 41 }
MikamiUitOpen 2:cf42e62a97dc 42
MikamiUitOpen 2:cf42e62a97dc 43 // Experimental support for printf in RawSerial. No Stream inheritance
MikamiUitOpen 2:cf42e62a97dc 44 // means we can't call printf() directly, so we use sprintf() instead.
MikamiUitOpen 2:cf42e62a97dc 45 // We only call malloc() for the sprintf() buffer if the buffer
MikamiUitOpen 2:cf42e62a97dc 46 // length is above a certain threshold, otherwise we use just the stack.
MikamiUitOpen 2:cf42e62a97dc 47 int RawSerial::printf(const char *format, ...) {
MikamiUitOpen 2:cf42e62a97dc 48 std::va_list arg;
MikamiUitOpen 2:cf42e62a97dc 49 va_start(arg, format);
MikamiUitOpen 2:cf42e62a97dc 50 // ARMCC microlib does not properly handle a size of 0.
MikamiUitOpen 2:cf42e62a97dc 51 // As a workaround supply a dummy buffer with a size of 1.
MikamiUitOpen 2:cf42e62a97dc 52 char dummy_buf[1];
MikamiUitOpen 2:cf42e62a97dc 53 int len = vsnprintf(dummy_buf, sizeof(dummy_buf), format, arg);
MikamiUitOpen 2:cf42e62a97dc 54 if (len < STRING_STACK_LIMIT) {
MikamiUitOpen 2:cf42e62a97dc 55 char temp[STRING_STACK_LIMIT];
MikamiUitOpen 2:cf42e62a97dc 56 vsprintf(temp, format, arg);
MikamiUitOpen 2:cf42e62a97dc 57 puts(temp);
MikamiUitOpen 2:cf42e62a97dc 58 } else {
MikamiUitOpen 2:cf42e62a97dc 59 char *temp = new char[len + 1];
MikamiUitOpen 2:cf42e62a97dc 60 vsprintf(temp, format, arg);
MikamiUitOpen 2:cf42e62a97dc 61 puts(temp);
MikamiUitOpen 2:cf42e62a97dc 62 delete[] temp;
MikamiUitOpen 2:cf42e62a97dc 63 }
MikamiUitOpen 2:cf42e62a97dc 64 va_end(arg);
MikamiUitOpen 2:cf42e62a97dc 65 return len;
MikamiUitOpen 2:cf42e62a97dc 66 }
MikamiUitOpen 2:cf42e62a97dc 67
MikamiUitOpen 2:cf42e62a97dc 68 } // namespace mbed
MikamiUitOpen 2:cf42e62a97dc 69
MikamiUitOpen 2:cf42e62a97dc 70 #endif