Nagaraj Krishnamurthy / LoRaWAN-NAMote72-Application-Demo_IoTium

LoRa on Multitech with Semtech mote

Dependencies:   LoRaWAN-lib SX1272Lib lib_gps lib_mma8451q lib_mpl3115a2 mbed

Fork of LoRaWAN-NAMote72-Application-Demo_Multitech by Nagaraj Krishnamurthy

system/timer.cpp@18:168062d45093, 2017-01-18 (annotated)

Committer:
nagarajkmurthy
Date:
Wed Jan 18 12:55:33 2017 +0000
Revision:
18:168062d45093
Parent:
2:d119a85c793c 
LoRa on Multitech using Semtech mote

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ubhat 2:d119a85c793c 1 /*
ubhat 2:d119a85c793c 2 / _____) _ | |
ubhat 2:d119a85c793c 3 ( (____ _____ ____ _| |_ _____ ____| |__
ubhat 2:d119a85c793c 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
ubhat 2:d119a85c793c 5 _____) ) ____| | | || |_| ____( (___| | | |
ubhat 2:d119a85c793c 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
ubhat 2:d119a85c793c 7 (C)2013 Semtech
ubhat 2:d119a85c793c 8
ubhat 2:d119a85c793c 9 Description: Timer objects and scheduling management
ubhat 2:d119a85c793c 10
ubhat 2:d119a85c793c 11 License: Revised BSD License, see LICENSE.TXT file include in the project
ubhat 2:d119a85c793c 12
ubhat 2:d119a85c793c 13 Maintainer: Miguel Luis and Gregory Cristian
ubhat 2:d119a85c793c 14 */
ubhat 2:d119a85c793c 15 #include "board.h"
ubhat 2:d119a85c793c 16
ubhat 2:d119a85c793c 17 Timer TimeCounter;
ubhat 2:d119a85c793c 18 Ticker LoadTimeCounter;
ubhat 2:d119a85c793c 19
ubhat 2:d119a85c793c 20 volatile uint32_t CurrentTime = 0;
ubhat 2:d119a85c793c 21
ubhat 2:d119a85c793c 22 void TimerResetTimeCounter( void )
ubhat 2:d119a85c793c 23 {
ubhat 2:d119a85c793c 24 CurrentTime = CurrentTime + TimeCounter.read_us( );
ubhat 2:d119a85c793c 25 TimeCounter.reset( );
ubhat 2:d119a85c793c 26 TimeCounter.start( );
ubhat 2:d119a85c793c 27 }
ubhat 2:d119a85c793c 28
ubhat 2:d119a85c793c 29 void TimerTimeCounterInit( void )
ubhat 2:d119a85c793c 30 {
ubhat 2:d119a85c793c 31 TimeCounter.start( );
ubhat 2:d119a85c793c 32 LoadTimeCounter.attach( &TimerResetTimeCounter, 10 );
ubhat 2:d119a85c793c 33 }
ubhat 2:d119a85c793c 34
ubhat 2:d119a85c793c 35 TimerTime_t TimerGetCurrentTime( void )
ubhat 2:d119a85c793c 36 {
ubhat 2:d119a85c793c 37 CurrentTime += TimeCounter.read_us( );
ubhat 2:d119a85c793c 38 TimeCounter.reset( );
ubhat 2:d119a85c793c 39 TimeCounter.start( );
ubhat 2:d119a85c793c 40 return ( ( TimerTime_t )CurrentTime );
ubhat 2:d119a85c793c 41 }
ubhat 2:d119a85c793c 42
ubhat 2:d119a85c793c 43 TimerTime_t TimerGetElapsedTime( TimerTime_t savedTime )
ubhat 2:d119a85c793c 44 {
ubhat 2:d119a85c793c 45 CurrentTime += TimeCounter.read_us( );
ubhat 2:d119a85c793c 46 TimeCounter.reset( );
ubhat 2:d119a85c793c 47 TimeCounter.start( );
ubhat 2:d119a85c793c 48 return ( TimerTime_t )( CurrentTime - savedTime );
ubhat 2:d119a85c793c 49 }
ubhat 2:d119a85c793c 50
ubhat 2:d119a85c793c 51 TimerTime_t TimerGetFutureTime( TimerTime_t eventInFuture )
ubhat 2:d119a85c793c 52 {
ubhat 2:d119a85c793c 53 CurrentTime += TimeCounter.read_us( );
ubhat 2:d119a85c793c 54 TimeCounter.reset( );
ubhat 2:d119a85c793c 55 TimeCounter.start( );
ubhat 2:d119a85c793c 56 return ( TimerTime_t )( CurrentTime + eventInFuture );
ubhat 2:d119a85c793c 57 }
ubhat 2:d119a85c793c 58
ubhat 2:d119a85c793c 59 void TimerInit( TimerEvent_t *obj, void ( *callback )( void ) )
ubhat 2:d119a85c793c 60 {
ubhat 2:d119a85c793c 61 obj->value = 0;
ubhat 2:d119a85c793c 62 obj->Callback = callback;
ubhat 2:d119a85c793c 63 }
ubhat 2:d119a85c793c 64
ubhat 2:d119a85c793c 65 void TimerStart( TimerEvent_t *obj )
ubhat 2:d119a85c793c 66 {
ubhat 2:d119a85c793c 67 obj->Timer.attach_us( obj->Callback, obj->value );
ubhat 2:d119a85c793c 68 }
ubhat 2:d119a85c793c 69
ubhat 2:d119a85c793c 70 void TimerStop( TimerEvent_t *obj )
ubhat 2:d119a85c793c 71 {
ubhat 2:d119a85c793c 72 obj->Timer.detach( );
ubhat 2:d119a85c793c 73 }
ubhat 2:d119a85c793c 74
ubhat 2:d119a85c793c 75 void TimerSetValue( TimerEvent_t *obj, uint32_t value )
ubhat 2:d119a85c793c 76 {
ubhat 2:d119a85c793c 77 obj->value = value;
ubhat 2:d119a85c793c 78 }