philippe s. / mbed-dev

mbed library sources. Supersedes mbed-src. Fixes analogIn and analogOut problems for TARGET_STM32F3. Tested on NUCLEO-F303K8, using 3 analogout and 7 analogin channels simultaneously. Added ability for STM32F334R8 and STM32F303K8 to use all three channels of DAC simultaneously. https://developer.mbed.org/users/StevieWray/code/mbed-dev/ Added ability for TARGET_STM32F3 to use more than one ADC simultaneously. https://developer.mbed.org/questions/67997/NUCLEO-F303K8ADC/

Fork of mbed-dev by mbed official

common/RawSerial.cpp@70:b3a5af880266, 2016-02-23 (annotated)

Committer:
neurofun
Date:
Tue Feb 23 21:59:35 2016 +0000
Revision:
70:b3a5af880266
Parent:
47:e32b5dd8af6d 
Edited DAC routines to allow for the simultaneous use of three channels from two DACs as seen on the STM32F334R8 and STM32F303K8. Edited ADC routines to allow for the simultaneous use of more than one ADC.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #include "RawSerial.h"
bogdanm 0:9b334a45a8ff 17 #include "wait_api.h"
bogdanm 0:9b334a45a8ff 18 #include <cstdarg>
bogdanm 0:9b334a45a8ff 19
bogdanm 0:9b334a45a8ff 20 #if DEVICE_SERIAL
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 #define STRING_STACK_LIMIT 120
bogdanm 0:9b334a45a8ff 23
bogdanm 0:9b334a45a8ff 24 namespace mbed {
bogdanm 0:9b334a45a8ff 25
bogdanm 0:9b334a45a8ff 26 RawSerial::RawSerial(PinName tx, PinName rx) : SerialBase(tx, rx) {
bogdanm 0:9b334a45a8ff 27 }
bogdanm 0:9b334a45a8ff 28
bogdanm 0:9b334a45a8ff 29 int RawSerial::getc() {
bogdanm 0:9b334a45a8ff 30 return _base_getc();
bogdanm 0:9b334a45a8ff 31 }
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 int RawSerial::putc(int c) {
bogdanm 0:9b334a45a8ff 34 return _base_putc(c);
bogdanm 0:9b334a45a8ff 35 }
bogdanm 0:9b334a45a8ff 36
bogdanm 0:9b334a45a8ff 37 int RawSerial::puts(const char *str) {
bogdanm 0:9b334a45a8ff 38 while (*str)
bogdanm 0:9b334a45a8ff 39 putc(*str ++);
bogdanm 0:9b334a45a8ff 40 return 0;
bogdanm 0:9b334a45a8ff 41 }
bogdanm 0:9b334a45a8ff 42
bogdanm 0:9b334a45a8ff 43 // Experimental support for printf in RawSerial. No Stream inheritance
bogdanm 0:9b334a45a8ff 44 // means we can't call printf() directly, so we use sprintf() instead.
bogdanm 0:9b334a45a8ff 45 // We only call malloc() for the sprintf() buffer if the buffer
bogdanm 0:9b334a45a8ff 46 // length is above a certain threshold, otherwise we use just the stack.
bogdanm 0:9b334a45a8ff 47 int RawSerial::printf(const char *format, ...) {
bogdanm 0:9b334a45a8ff 48 std::va_list arg;
bogdanm 0:9b334a45a8ff 49 va_start(arg, format);
mbed_official 47:e32b5dd8af6d 50 // ARMCC microlib does not properly handle a size of 0.
mbed_official 47:e32b5dd8af6d 51 // As a workaround supply a dummy buffer with a size of 1.
mbed_official 47:e32b5dd8af6d 52 char dummy_buf[1];
mbed_official 47:e32b5dd8af6d 53 int len = vsnprintf(dummy_buf, sizeof(dummy_buf), format, arg);
bogdanm 0:9b334a45a8ff 54 if (len < STRING_STACK_LIMIT) {
bogdanm 0:9b334a45a8ff 55 char temp[STRING_STACK_LIMIT];
bogdanm 0:9b334a45a8ff 56 vsprintf(temp, format, arg);
bogdanm 0:9b334a45a8ff 57 puts(temp);
bogdanm 0:9b334a45a8ff 58 } else {
bogdanm 0:9b334a45a8ff 59 char *temp = new char[len + 1];
bogdanm 0:9b334a45a8ff 60 vsprintf(temp, format, arg);
bogdanm 0:9b334a45a8ff 61 puts(temp);
bogdanm 0:9b334a45a8ff 62 delete[] temp;
bogdanm 0:9b334a45a8ff 63 }
bogdanm 0:9b334a45a8ff 64 va_end(arg);
bogdanm 0:9b334a45a8ff 65 return len;
bogdanm 0:9b334a45a8ff 66 }
bogdanm 0:9b334a45a8ff 67
bogdanm 0:9b334a45a8ff 68 } // namespace mbed
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70 #endif