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/FATFileHandle.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 "ff.h"
wardm 12:046346a16ff4 23 #include "ffconf.h"
wardm 12:046346a16ff4 24 #include "mbed_debug.h"
wardm 12:046346a16ff4 25
wardm 12:046346a16ff4 26 #include "FATFileHandle.h"
wardm 12:046346a16ff4 27
wardm 12:046346a16ff4 28 FATFileHandle::FATFileHandle(FIL fh) {
wardm 12:046346a16ff4 29 _fh = fh;
wardm 12:046346a16ff4 30 }
wardm 12:046346a16ff4 31
wardm 12:046346a16ff4 32 int FATFileHandle::close() {
wardm 12:046346a16ff4 33 int retval = f_close(&_fh);
wardm 12:046346a16ff4 34 delete this;
wardm 12:046346a16ff4 35 return retval;
wardm 12:046346a16ff4 36 }
wardm 12:046346a16ff4 37
wardm 12:046346a16ff4 38 ssize_t FATFileHandle::write(const void* buffer, size_t length) {
wardm 12:046346a16ff4 39 UINT n;
wardm 12:046346a16ff4 40 FRESULT res = f_write(&_fh, buffer, length, &n);
wardm 12:046346a16ff4 41 if (res) {
wardm 12:046346a16ff4 42 debug_if(FFS_DBG, "f_write() failed: %d", res);
wardm 12:046346a16ff4 43 return -1;
wardm 12:046346a16ff4 44 }
wardm 12:046346a16ff4 45 return n;
wardm 12:046346a16ff4 46 }
wardm 12:046346a16ff4 47
wardm 12:046346a16ff4 48 ssize_t FATFileHandle::read(void* buffer, size_t length) {
wardm 12:046346a16ff4 49 debug_if(FFS_DBG, "read(%d)\n", length);
wardm 12:046346a16ff4 50 UINT n;
wardm 12:046346a16ff4 51 FRESULT res = f_read(&_fh, buffer, length, &n);
wardm 12:046346a16ff4 52 if (res) {
wardm 12:046346a16ff4 53 debug_if(FFS_DBG, "f_read() failed: %d\n", res);
wardm 12:046346a16ff4 54 return -1;
wardm 12:046346a16ff4 55 }
wardm 12:046346a16ff4 56 return n;
wardm 12:046346a16ff4 57 }
wardm 12:046346a16ff4 58
wardm 12:046346a16ff4 59 int FATFileHandle::isatty() {
wardm 12:046346a16ff4 60 return 0;
wardm 12:046346a16ff4 61 }
wardm 12:046346a16ff4 62
wardm 12:046346a16ff4 63 off_t FATFileHandle::lseek(off_t position, int whence) {
wardm 12:046346a16ff4 64 if (whence == SEEK_END) {
wardm 12:046346a16ff4 65 position += _fh.fsize;
wardm 12:046346a16ff4 66 } else if(whence==SEEK_CUR) {
wardm 12:046346a16ff4 67 position += _fh.fptr;
wardm 12:046346a16ff4 68 }
wardm 12:046346a16ff4 69 FRESULT res = f_lseek(&_fh, position);
wardm 12:046346a16ff4 70 if (res) {
wardm 12:046346a16ff4 71 debug_if(FFS_DBG, "lseek failed: %d\n", res);
wardm 12:046346a16ff4 72 return -1;
wardm 12:046346a16ff4 73 } else {
wardm 12:046346a16ff4 74 debug_if(FFS_DBG, "lseek OK, returning %i\n", _fh.fptr);
wardm 12:046346a16ff4 75 return _fh.fptr;
wardm 12:046346a16ff4 76 }
wardm 12:046346a16ff4 77 }
wardm 12:046346a16ff4 78
wardm 12:046346a16ff4 79 int FATFileHandle::fsync() {
wardm 12:046346a16ff4 80 FRESULT res = f_sync(&_fh);
wardm 12:046346a16ff4 81 if (res) {
wardm 12:046346a16ff4 82 debug_if(FFS_DBG, "f_sync() failed: %d\n", res);
wardm 12:046346a16ff4 83 return -1;
wardm 12:046346a16ff4 84 }
wardm 12:046346a16ff4 85 return 0;
wardm 12:046346a16ff4 86 }
wardm 12:046346a16ff4 87
wardm 12:046346a16ff4 88 off_t FATFileHandle::flen() {
wardm 12:046346a16ff4 89 return _fh.fsize;
wardm 12:046346a16ff4 90 }