Tamura Mizuki / STM32F746_FFT

fft

Dependencies:   BSP_DISCO_F746NG SDFileSystem_Warning_Fixed

mbed_src_STM32F7/common/RawSerial.cpp@3:6f7e05dd8d15, 2020-03-06 (annotated)

Committer:
aria19970520
Date:
Fri Mar 06 06:52:14 2020 +0000
Revision:
3:6f7e05dd8d15
Parent:
0:3e46577dc273 
fft

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:3e46577dc273 1 /* mbed Microcontroller Library
MikamiUitOpen 0:3e46577dc273 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 0:3e46577dc273 3 *
MikamiUitOpen 0:3e46577dc273 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 0:3e46577dc273 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 0:3e46577dc273 6 * You may obtain a copy of the License at
MikamiUitOpen 0:3e46577dc273 7 *
MikamiUitOpen 0:3e46577dc273 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 0:3e46577dc273 9 *
MikamiUitOpen 0:3e46577dc273 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 0:3e46577dc273 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 0:3e46577dc273 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 0:3e46577dc273 13 * See the License for the specific language governing permissions and
MikamiUitOpen 0:3e46577dc273 14 * limitations under the License.
MikamiUitOpen 0:3e46577dc273 15 */
MikamiUitOpen 0:3e46577dc273 16 #include "RawSerial.h"
MikamiUitOpen 0:3e46577dc273 17 #include "wait_api.h"
MikamiUitOpen 0:3e46577dc273 18 #include <cstdarg>
MikamiUitOpen 0:3e46577dc273 19
MikamiUitOpen 0:3e46577dc273 20 #if DEVICE_SERIAL
MikamiUitOpen 0:3e46577dc273 21
MikamiUitOpen 0:3e46577dc273 22 #define STRING_STACK_LIMIT 120
MikamiUitOpen 0:3e46577dc273 23
MikamiUitOpen 0:3e46577dc273 24 namespace mbed {
MikamiUitOpen 0:3e46577dc273 25
MikamiUitOpen 0:3e46577dc273 26 RawSerial::RawSerial(PinName tx, PinName rx) : SerialBase(tx, rx) {
MikamiUitOpen 0:3e46577dc273 27 }
MikamiUitOpen 0:3e46577dc273 28
MikamiUitOpen 0:3e46577dc273 29 int RawSerial::getc() {
MikamiUitOpen 0:3e46577dc273 30 return _base_getc();
MikamiUitOpen 0:3e46577dc273 31 }
MikamiUitOpen 0:3e46577dc273 32
MikamiUitOpen 0:3e46577dc273 33 int RawSerial::putc(int c) {
MikamiUitOpen 0:3e46577dc273 34 return _base_putc(c);
MikamiUitOpen 0:3e46577dc273 35 }
MikamiUitOpen 0:3e46577dc273 36
MikamiUitOpen 0:3e46577dc273 37 int RawSerial::puts(const char *str) {
MikamiUitOpen 0:3e46577dc273 38 while (*str)
MikamiUitOpen 0:3e46577dc273 39 putc(*str ++);
MikamiUitOpen 0:3e46577dc273 40 return 0;
MikamiUitOpen 0:3e46577dc273 41 }
MikamiUitOpen 0:3e46577dc273 42
MikamiUitOpen 0:3e46577dc273 43 // Experimental support for printf in RawSerial. No Stream inheritance
MikamiUitOpen 0:3e46577dc273 44 // means we can't call printf() directly, so we use sprintf() instead.
MikamiUitOpen 0:3e46577dc273 45 // We only call malloc() for the sprintf() buffer if the buffer
MikamiUitOpen 0:3e46577dc273 46 // length is above a certain threshold, otherwise we use just the stack.
MikamiUitOpen 0:3e46577dc273 47 int RawSerial::printf(const char *format, ...) {
MikamiUitOpen 0:3e46577dc273 48 std::va_list arg;
MikamiUitOpen 0:3e46577dc273 49 va_start(arg, format);
MikamiUitOpen 0:3e46577dc273 50 // ARMCC microlib does not properly handle a size of 0.
MikamiUitOpen 0:3e46577dc273 51 // As a workaround supply a dummy buffer with a size of 1.
MikamiUitOpen 0:3e46577dc273 52 char dummy_buf[1];
MikamiUitOpen 0:3e46577dc273 53 int len = vsnprintf(dummy_buf, sizeof(dummy_buf), format, arg);
MikamiUitOpen 0:3e46577dc273 54 if (len < STRING_STACK_LIMIT) {
MikamiUitOpen 0:3e46577dc273 55 char temp[STRING_STACK_LIMIT];
MikamiUitOpen 0:3e46577dc273 56 vsprintf(temp, format, arg);
MikamiUitOpen 0:3e46577dc273 57 puts(temp);
MikamiUitOpen 0:3e46577dc273 58 } else {
MikamiUitOpen 0:3e46577dc273 59 char *temp = new char[len + 1];
MikamiUitOpen 0:3e46577dc273 60 vsprintf(temp, format, arg);
MikamiUitOpen 0:3e46577dc273 61 puts(temp);
MikamiUitOpen 0:3e46577dc273 62 delete[] temp;
MikamiUitOpen 0:3e46577dc273 63 }
MikamiUitOpen 0:3e46577dc273 64 va_end(arg);
MikamiUitOpen 0:3e46577dc273 65 return len;
MikamiUitOpen 0:3e46577dc273 66 }
MikamiUitOpen 0:3e46577dc273 67
MikamiUitOpen 0:3e46577dc273 68 } // namespace mbed
MikamiUitOpen 0:3e46577dc273 69
MikamiUitOpen 0:3e46577dc273 70 #endif