Semtech / LoRaWAN-lib

LoRaWAN MAC layer implementation

Dependents:   LoRaWAN-demo-72_tjm LoRaWAN-demo-72_jlc LoRaWAN-demo-elmo frdm_LoRa_Connect_Woodstream_Demo_tjm ... more

LoRAWAN-lib is a port of the GitHub LoRaMac-node LoRaWAN MAC layer implementation.

This library depends on the SX1276Lib or SX1272Lib radio drivers depending on the used mbed component shield.

This library depends also on some cryptographic helper functions as well as helper functions for the timers management. These can be found on the example projects under the system directory.

The example projects are:

  1. LoRaWAN-demo-72
  2. LoRaWAN-demo-76
  3. LoRaWAN-demo-NAMote72

The LoRaWAN specification specifies different ISM bands operating parameters. These are all implemented under the LoRaMac-board.h file.

In order to select which band to use, please change line 24 of board.h file provided on the examples projects as follows:


EU868

board.h

#define USE_BAND_868


US915

board.h

#define USE_BAND_915


US915 - Hybrid

board.h

#define USE_BAND_915_HYBRID


CN780

board.h

#define USE_BAND_780


EU433

board.h

#define USE_BAND_433

system/timer.cpp@0:91d1a7783bb9, 2015-10-20 (annotated)

Committer:
mluis
Date:
Tue Oct 20 13:21:26 2015 +0000
Revision:
0:91d1a7783bb9
Library creation synchronized with GitHub LoRaMac-node v3.4 (https://github.com/Lora-net/LoRaMac-node)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mluis 0:91d1a7783bb9 1 /*
mluis 0:91d1a7783bb9 2 / _____) _ | |
mluis 0:91d1a7783bb9 3 ( (____ _____ ____ _| |_ _____ ____| |__
mluis 0:91d1a7783bb9 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
mluis 0:91d1a7783bb9 5 _____) ) ____| | | || |_| ____( (___| | | |
mluis 0:91d1a7783bb9 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
mluis 0:91d1a7783bb9 7 (C)2013 Semtech
mluis 0:91d1a7783bb9 8
mluis 0:91d1a7783bb9 9 Description: Timer objects and scheduling management
mluis 0:91d1a7783bb9 10
mluis 0:91d1a7783bb9 11 License: Revised BSD License, see LICENSE.TXT file include in the project
mluis 0:91d1a7783bb9 12
mluis 0:91d1a7783bb9 13 Maintainer: Miguel Luis and Gregory Cristian
mluis 0:91d1a7783bb9 14 */
mluis 0:91d1a7783bb9 15 #include "board.h"
mluis 0:91d1a7783bb9 16
mluis 0:91d1a7783bb9 17 Timer TimeCounter;
mluis 0:91d1a7783bb9 18 Ticker LoadTimeCounter;
mluis 0:91d1a7783bb9 19
mluis 0:91d1a7783bb9 20 volatile uint32_t CurrentTime = 0;
mluis 0:91d1a7783bb9 21
mluis 0:91d1a7783bb9 22 void TimerResetTimeCounter( void )
mluis 0:91d1a7783bb9 23 {
mluis 0:91d1a7783bb9 24 CurrentTime = CurrentTime + TimeCounter.read_us( );
mluis 0:91d1a7783bb9 25 TimeCounter.reset( );
mluis 0:91d1a7783bb9 26 TimeCounter.start( );
mluis 0:91d1a7783bb9 27 }
mluis 0:91d1a7783bb9 28
mluis 0:91d1a7783bb9 29 void TimerTimeCounterInit( void )
mluis 0:91d1a7783bb9 30 {
mluis 0:91d1a7783bb9 31 TimeCounter.start( );
mluis 0:91d1a7783bb9 32 LoadTimeCounter.attach( &TimerResetTimeCounter, 10 );
mluis 0:91d1a7783bb9 33 }
mluis 0:91d1a7783bb9 34
mluis 0:91d1a7783bb9 35 TimerTime_t TimerGetCurrentTime( void )
mluis 0:91d1a7783bb9 36 {
mluis 0:91d1a7783bb9 37 CurrentTime += TimeCounter.read_us( );
mluis 0:91d1a7783bb9 38 TimeCounter.reset( );
mluis 0:91d1a7783bb9 39 TimeCounter.start( );
mluis 0:91d1a7783bb9 40 return ( ( TimerTime_t )CurrentTime );
mluis 0:91d1a7783bb9 41 }
mluis 0:91d1a7783bb9 42
mluis 0:91d1a7783bb9 43 void TimerInit( TimerEvent_t *obj, void ( *callback )( void ) )
mluis 0:91d1a7783bb9 44 {
mluis 0:91d1a7783bb9 45 obj->value = 0;
mluis 0:91d1a7783bb9 46 obj->Callback = callback;
mluis 0:91d1a7783bb9 47 }
mluis 0:91d1a7783bb9 48
mluis 0:91d1a7783bb9 49 void TimerStart( TimerEvent_t *obj )
mluis 0:91d1a7783bb9 50 {
mluis 0:91d1a7783bb9 51 obj->Timer.attach_us( obj->Callback, obj->value );
mluis 0:91d1a7783bb9 52 }
mluis 0:91d1a7783bb9 53
mluis 0:91d1a7783bb9 54 void TimerStop( TimerEvent_t *obj )
mluis 0:91d1a7783bb9 55 {
mluis 0:91d1a7783bb9 56 obj->Timer.detach( );
mluis 0:91d1a7783bb9 57 }
mluis 0:91d1a7783bb9 58
mluis 0:91d1a7783bb9 59 void TimerSetValue( TimerEvent_t *obj, uint32_t value )
mluis 0:91d1a7783bb9 60 {
mluis 0:91d1a7783bb9 61 obj->value = value;
mluis 0:91d1a7783bb9 62 }