Ward Mattar / Mbed 2 deprecated Formula_LoRa_Receiver

This is code is part of a Technion course project in advanced IoT, implementing a device to receive and present sensors data from a Formula racing car built by students at Technion - Israel Institute of Technology.

Dependencies:   mbed Buffer

Fork of DISCO-L072CZ-LRWAN1_LoRa_PingPong by ST

This is code is part of a Technion course project in advanced IoT, implementing a device to receive sensors data from another L072CZ-LRWAN1 installed on a Formula racing car (built by students at Technion - Israel Institute of Technology), and sends it to a GUI presenting the data (GUI project: github.com/ward-mattar/TechnionFormulaGUI).

How to install

  • Create an account on Mbed: https://os.mbed.com/account/signup/
  • Import project into Compiler
  • In the Program Workspace select "Formula_Nucleo_Receiver"
  • Select a Platform like so:
  1. Click button at top-left
  2. Add Board
  3. Search "NUCLEO F103RB" and then "Add to your Mbed Compiler"
  • Finally click "Compile", if the build was successful, the binary would download automatically
  • To install it on device simply plug it in to a PC, open device drive and drag then drop binary file in it

FATFileSystem/FATFileSystem.cpp@12:046346a16ff4, 2018-05-19 (annotated)

Committer:
wardm
Date:
Sat May 19 15:42:38 2018 +0000
Revision:
12:046346a16ff4
V1.0.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wardm 12:046346a16ff4 1 /* mbed Microcontroller Library
wardm 12:046346a16ff4 2 * Copyright (c) 2006-2012 ARM Limited
wardm 12:046346a16ff4 3 *
wardm 12:046346a16ff4 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
wardm 12:046346a16ff4 5 * of this software and associated documentation files (the "Software"), to deal
wardm 12:046346a16ff4 6 * in the Software without restriction, including without limitation the rights
wardm 12:046346a16ff4 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
wardm 12:046346a16ff4 8 * copies of the Software, and to permit persons to whom the Software is
wardm 12:046346a16ff4 9 * furnished to do so, subject to the following conditions:
wardm 12:046346a16ff4 10 *
wardm 12:046346a16ff4 11 * The above copyright notice and this permission notice shall be included in
wardm 12:046346a16ff4 12 * all copies or substantial portions of the Software.
wardm 12:046346a16ff4 13 *
wardm 12:046346a16ff4 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
wardm 12:046346a16ff4 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
wardm 12:046346a16ff4 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
wardm 12:046346a16ff4 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
wardm 12:046346a16ff4 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
wardm 12:046346a16ff4 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
wardm 12:046346a16ff4 20 * SOFTWARE.
wardm 12:046346a16ff4 21 */
wardm 12:046346a16ff4 22 #include "mbed.h"
wardm 12:046346a16ff4 23
wardm 12:046346a16ff4 24 #include "ffconf.h"
wardm 12:046346a16ff4 25 #include "mbed_debug.h"
wardm 12:046346a16ff4 26
wardm 12:046346a16ff4 27 #include "FATFileSystem.h"
wardm 12:046346a16ff4 28 #include "FATFileHandle.h"
wardm 12:046346a16ff4 29 #include "FATDirHandle.h"
wardm 12:046346a16ff4 30
wardm 12:046346a16ff4 31 DWORD get_fattime(void) {
wardm 12:046346a16ff4 32 time_t rawtime;
wardm 12:046346a16ff4 33 time(&rawtime);
wardm 12:046346a16ff4 34 struct tm *ptm = localtime(&rawtime);
wardm 12:046346a16ff4 35 return (DWORD)(ptm->tm_year - 80) << 25
wardm 12:046346a16ff4 36 | (DWORD)(ptm->tm_mon + 1 ) << 21
wardm 12:046346a16ff4 37 | (DWORD)(ptm->tm_mday ) << 16
wardm 12:046346a16ff4 38 | (DWORD)(ptm->tm_hour ) << 11
wardm 12:046346a16ff4 39 | (DWORD)(ptm->tm_min ) << 5
wardm 12:046346a16ff4 40 | (DWORD)(ptm->tm_sec/2 );
wardm 12:046346a16ff4 41 }
wardm 12:046346a16ff4 42
wardm 12:046346a16ff4 43 FATFileSystem *FATFileSystem::_ffs[_VOLUMES] = {0};
wardm 12:046346a16ff4 44
wardm 12:046346a16ff4 45 FATFileSystem::FATFileSystem(const char* n) : FileSystemLike(n) {
wardm 12:046346a16ff4 46 debug_if(FFS_DBG, "FATFileSystem(%s)\n", n);
wardm 12:046346a16ff4 47 for(int i=0; i<_VOLUMES; i++) {
wardm 12:046346a16ff4 48 if(_ffs[i] == 0) {
wardm 12:046346a16ff4 49 _ffs[i] = this;
wardm 12:046346a16ff4 50 _fsid[0] = '0' + i;
wardm 12:046346a16ff4 51 _fsid[1] = '\0';
wardm 12:046346a16ff4 52 debug_if(FFS_DBG, "Mounting [%s] on ffs drive [%s]\n", getName(), _fsid);
wardm 12:046346a16ff4 53 f_mount(&_fs, _fsid, 0);
wardm 12:046346a16ff4 54 return;
wardm 12:046346a16ff4 55 }
wardm 12:046346a16ff4 56 }
wardm 12:046346a16ff4 57 error("Couldn't create %s in FATFileSystem::FATFileSystem\n", n);
wardm 12:046346a16ff4 58 }
wardm 12:046346a16ff4 59
wardm 12:046346a16ff4 60 FATFileSystem::~FATFileSystem() {
wardm 12:046346a16ff4 61 for (int i=0; i<_VOLUMES; i++) {
wardm 12:046346a16ff4 62 if (_ffs[i] == this) {
wardm 12:046346a16ff4 63 _ffs[i] = 0;
wardm 12:046346a16ff4 64 f_mount(NULL, _fsid, 0);
wardm 12:046346a16ff4 65 }
wardm 12:046346a16ff4 66 }
wardm 12:046346a16ff4 67 }
wardm 12:046346a16ff4 68
wardm 12:046346a16ff4 69 FileHandle *FATFileSystem::open(const char* name, int flags) {
wardm 12:046346a16ff4 70 debug_if(FFS_DBG, "open(%s) on filesystem [%s], drv [%s]\n", name, getName(), _fsid);
wardm 12:046346a16ff4 71 char n[64];
wardm 12:046346a16ff4 72 sprintf(n, "%s:/%s", _fsid, name);
wardm 12:046346a16ff4 73
wardm 12:046346a16ff4 74 /* POSIX flags -> FatFS open mode */
wardm 12:046346a16ff4 75 BYTE openmode;
wardm 12:046346a16ff4 76 if (flags & O_RDWR) {
wardm 12:046346a16ff4 77 openmode = FA_READ|FA_WRITE;
wardm 12:046346a16ff4 78 } else if(flags & O_WRONLY) {
wardm 12:046346a16ff4 79 openmode = FA_WRITE;
wardm 12:046346a16ff4 80 } else {
wardm 12:046346a16ff4 81 openmode = FA_READ;
wardm 12:046346a16ff4 82 }
wardm 12:046346a16ff4 83 if(flags & O_CREAT) {
wardm 12:046346a16ff4 84 if(flags & O_TRUNC) {
wardm 12:046346a16ff4 85 openmode |= FA_CREATE_ALWAYS;
wardm 12:046346a16ff4 86 } else {
wardm 12:046346a16ff4 87 openmode |= FA_OPEN_ALWAYS;
wardm 12:046346a16ff4 88 }
wardm 12:046346a16ff4 89 }
wardm 12:046346a16ff4 90
wardm 12:046346a16ff4 91 FIL fh;
wardm 12:046346a16ff4 92 FRESULT res = f_open(&fh, n, openmode);
wardm 12:046346a16ff4 93 if (res) {
wardm 12:046346a16ff4 94 debug_if(FFS_DBG, "f_open('w') failed: %d\n", res);
wardm 12:046346a16ff4 95 return NULL;
wardm 12:046346a16ff4 96 }
wardm 12:046346a16ff4 97 if (flags & O_APPEND) {
wardm 12:046346a16ff4 98 f_lseek(&fh, fh.fsize);
wardm 12:046346a16ff4 99 }
wardm 12:046346a16ff4 100 return new FATFileHandle(fh);
wardm 12:046346a16ff4 101 }
wardm 12:046346a16ff4 102
wardm 12:046346a16ff4 103 int FATFileSystem::open(FileHandle **file, const char *name, int flags) {
wardm 12:046346a16ff4 104 FileHandle *temp = open(name, flags);
wardm 12:046346a16ff4 105 if (!temp) {
wardm 12:046346a16ff4 106 return -1;
wardm 12:046346a16ff4 107 }
wardm 12:046346a16ff4 108
wardm 12:046346a16ff4 109 *file = temp;
wardm 12:046346a16ff4 110 return 0;
wardm 12:046346a16ff4 111 }
wardm 12:046346a16ff4 112
wardm 12:046346a16ff4 113 int FATFileSystem::remove(const char *filename) {
wardm 12:046346a16ff4 114 FRESULT res = f_unlink(filename);
wardm 12:046346a16ff4 115 if (res) {
wardm 12:046346a16ff4 116 debug_if(FFS_DBG, "f_unlink() failed: %d\n", res);
wardm 12:046346a16ff4 117 return -1;
wardm 12:046346a16ff4 118 }
wardm 12:046346a16ff4 119 return 0;
wardm 12:046346a16ff4 120 }
wardm 12:046346a16ff4 121
wardm 12:046346a16ff4 122 int FATFileSystem::rename(const char *oldname, const char *newname) {
wardm 12:046346a16ff4 123 FRESULT res = f_rename(oldname, newname);
wardm 12:046346a16ff4 124 if (res) {
wardm 12:046346a16ff4 125 debug_if(FFS_DBG, "f_rename() failed: %d\n", res);
wardm 12:046346a16ff4 126 return -1;
wardm 12:046346a16ff4 127 }
wardm 12:046346a16ff4 128 return 0;
wardm 12:046346a16ff4 129 }
wardm 12:046346a16ff4 130
wardm 12:046346a16ff4 131 int FATFileSystem::format() {
wardm 12:046346a16ff4 132 FRESULT res = f_mkfs(_fsid, 0, 512); // Logical drive number, Partitioning rule, Allocation unit size (bytes per cluster)
wardm 12:046346a16ff4 133 if (res) {
wardm 12:046346a16ff4 134 debug_if(FFS_DBG, "f_mkfs() failed: %d\n", res);
wardm 12:046346a16ff4 135 return -1;
wardm 12:046346a16ff4 136 }
wardm 12:046346a16ff4 137 return 0;
wardm 12:046346a16ff4 138 }
wardm 12:046346a16ff4 139
wardm 12:046346a16ff4 140 DirHandle *FATFileSystem::opendir(const char *name) {
wardm 12:046346a16ff4 141 FATFS_DIR dir;
wardm 12:046346a16ff4 142 FRESULT res = f_opendir(&dir, name);
wardm 12:046346a16ff4 143 if (res != 0) {
wardm 12:046346a16ff4 144 return NULL;
wardm 12:046346a16ff4 145 }
wardm 12:046346a16ff4 146 return new FATDirHandle(dir);
wardm 12:046346a16ff4 147 }
wardm 12:046346a16ff4 148
wardm 12:046346a16ff4 149 int FATFileSystem::open(DirHandle **dir, const char *name) {
wardm 12:046346a16ff4 150 DirHandle *temp = opendir(name);
wardm 12:046346a16ff4 151 if (!temp) {
wardm 12:046346a16ff4 152 return -1;
wardm 12:046346a16ff4 153 }
wardm 12:046346a16ff4 154
wardm 12:046346a16ff4 155 *dir = temp;
wardm 12:046346a16ff4 156 return 0;
wardm 12:046346a16ff4 157 }
wardm 12:046346a16ff4 158
wardm 12:046346a16ff4 159 int FATFileSystem::mkdir(const char *name, mode_t mode) {
wardm 12:046346a16ff4 160 FRESULT res = f_mkdir(name);
wardm 12:046346a16ff4 161 return res == 0 ? 0 : -1;
wardm 12:046346a16ff4 162 }
wardm 12:046346a16ff4 163
wardm 12:046346a16ff4 164 int FATFileSystem::mount() {
wardm 12:046346a16ff4 165 FRESULT res = f_mount(&_fs, _fsid, 1);
wardm 12:046346a16ff4 166 return res == 0 ? 0 : -1;
wardm 12:046346a16ff4 167 }
wardm 12:046346a16ff4 168
wardm 12:046346a16ff4 169 int FATFileSystem::unmount() {
wardm 12:046346a16ff4 170 if (disk_sync())
wardm 12:046346a16ff4 171 return -1;
wardm 12:046346a16ff4 172 FRESULT res = f_mount(NULL, _fsid, 0);
wardm 12:046346a16ff4 173 return res == 0 ? 0 : -1;
wardm 12:046346a16ff4 174 }