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

Committer:
neurofun
Date:
Tue Feb 23 21:59:35 2016 +0000
Revision:
70:b3a5af880266
Parent:
0:9b334a45a8ff 
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 "FileSystemLike.h"
bogdanm 0:9b334a45a8ff 17
bogdanm 0:9b334a45a8ff 18 namespace mbed {
bogdanm 0:9b334a45a8ff 19
bogdanm 0:9b334a45a8ff 20 class BaseDirHandle : public DirHandle {
bogdanm 0:9b334a45a8ff 21 public:
bogdanm 0:9b334a45a8ff 22 /*
bogdanm 0:9b334a45a8ff 23 We keep track of our current location as the n'th object in the
bogdanm 0:9b334a45a8ff 24 FileSystemLike list. Using a Base* instead would cause problems if that
bogdanm 0:9b334a45a8ff 25 object were to be destroyed between readdirs.
bogdanm 0:9b334a45a8ff 26 Using this method does mean though that destroying/creating objects can
bogdanm 0:9b334a45a8ff 27 give unusual results from readdir.
bogdanm 0:9b334a45a8ff 28 */
bogdanm 0:9b334a45a8ff 29 off_t n;
bogdanm 0:9b334a45a8ff 30 struct dirent cur_entry;
bogdanm 0:9b334a45a8ff 31
bogdanm 0:9b334a45a8ff 32 BaseDirHandle() : n(0), cur_entry() {
bogdanm 0:9b334a45a8ff 33 }
bogdanm 0:9b334a45a8ff 34
bogdanm 0:9b334a45a8ff 35 virtual int closedir() {
bogdanm 0:9b334a45a8ff 36 delete this;
bogdanm 0:9b334a45a8ff 37 return 0;
bogdanm 0:9b334a45a8ff 38 }
bogdanm 0:9b334a45a8ff 39
bogdanm 0:9b334a45a8ff 40 virtual struct dirent *readdir() {
bogdanm 0:9b334a45a8ff 41 FileBase *ptr = FileBase::get(n);
bogdanm 0:9b334a45a8ff 42 if (ptr == NULL) return NULL;
bogdanm 0:9b334a45a8ff 43
bogdanm 0:9b334a45a8ff 44 /* Increment n, so next readdir gets the next item */
bogdanm 0:9b334a45a8ff 45 n++;
bogdanm 0:9b334a45a8ff 46
bogdanm 0:9b334a45a8ff 47 /* Setup cur entry and return a pointer to it */
bogdanm 0:9b334a45a8ff 48 std::strncpy(cur_entry.d_name, ptr->getName(), NAME_MAX);
bogdanm 0:9b334a45a8ff 49 return &cur_entry;
bogdanm 0:9b334a45a8ff 50 }
bogdanm 0:9b334a45a8ff 51
bogdanm 0:9b334a45a8ff 52 virtual off_t telldir() {
bogdanm 0:9b334a45a8ff 53 return n;
bogdanm 0:9b334a45a8ff 54 }
bogdanm 0:9b334a45a8ff 55
bogdanm 0:9b334a45a8ff 56 virtual void seekdir(off_t offset) {
bogdanm 0:9b334a45a8ff 57 n = offset;
bogdanm 0:9b334a45a8ff 58 }
bogdanm 0:9b334a45a8ff 59
bogdanm 0:9b334a45a8ff 60 virtual void rewinddir() {
bogdanm 0:9b334a45a8ff 61 n = 0;
bogdanm 0:9b334a45a8ff 62 }
bogdanm 0:9b334a45a8ff 63 };
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 FileSystemLike::FileSystemLike(const char *name) : FileBase(name, FileSystemPathType) {
bogdanm 0:9b334a45a8ff 66
bogdanm 0:9b334a45a8ff 67 }
bogdanm 0:9b334a45a8ff 68
bogdanm 0:9b334a45a8ff 69 FileSystemLike::~FileSystemLike() {
bogdanm 0:9b334a45a8ff 70
bogdanm 0:9b334a45a8ff 71 }
bogdanm 0:9b334a45a8ff 72
bogdanm 0:9b334a45a8ff 73 DirHandle *FileSystemLike::opendir() {
bogdanm 0:9b334a45a8ff 74 return new BaseDirHandle();
bogdanm 0:9b334a45a8ff 75 }
bogdanm 0:9b334a45a8ff 76
bogdanm 0:9b334a45a8ff 77 } // namespace mbed