Uttam Bhat / Canada-SX1272-LoRaWAN-Bootcamp

LoRaWAN application using SX1272

Dependencies:   X_NUCLEO_IKS01A1 driver_mbed_TH02 LoRaWAN-lib-v1_0_1 SX1272Lib mbed

Fork of LoRaWAN-SX1272-Application-Demo by Uttam Bhat

system/timer.cpp@0:6cc76d70e2a1, 2017-04-06 (annotated)

Committer:
ubhat
Date:
Thu Apr 06 21:59:50 2017 +0000
Revision:
0:6cc76d70e2a1
LoRaWAN SX1272 Application

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ubhat 0:6cc76d70e2a1 1 /*
ubhat 0:6cc76d70e2a1 2 / _____) _ | |
ubhat 0:6cc76d70e2a1 3 ( (____ _____ ____ _| |_ _____ ____| |__
ubhat 0:6cc76d70e2a1 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
ubhat 0:6cc76d70e2a1 5 _____) ) ____| | | || |_| ____( (___| | | |
ubhat 0:6cc76d70e2a1 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
ubhat 0:6cc76d70e2a1 7 (C)2013 Semtech
ubhat 0:6cc76d70e2a1 8
ubhat 0:6cc76d70e2a1 9 Description: Timer objects and scheduling management
ubhat 0:6cc76d70e2a1 10
ubhat 0:6cc76d70e2a1 11 License: Revised BSD License, see LICENSE.TXT file include in the project
ubhat 0:6cc76d70e2a1 12
ubhat 0:6cc76d70e2a1 13 Maintainer: Miguel Luis and Gregory Cristian
ubhat 0:6cc76d70e2a1 14 */
ubhat 0:6cc76d70e2a1 15 #include "board.h"
ubhat 0:6cc76d70e2a1 16
ubhat 0:6cc76d70e2a1 17 Timer TimeCounter;
ubhat 0:6cc76d70e2a1 18 Ticker LoadTimeCounter;
ubhat 0:6cc76d70e2a1 19
ubhat 0:6cc76d70e2a1 20 volatile uint32_t CurrentTime = 0;
ubhat 0:6cc76d70e2a1 21
ubhat 0:6cc76d70e2a1 22 void TimerResetTimeCounter( void )
ubhat 0:6cc76d70e2a1 23 {
ubhat 0:6cc76d70e2a1 24 CurrentTime = CurrentTime + TimeCounter.read_us( );
ubhat 0:6cc76d70e2a1 25 TimeCounter.reset( );
ubhat 0:6cc76d70e2a1 26 TimeCounter.start( );
ubhat 0:6cc76d70e2a1 27 }
ubhat 0:6cc76d70e2a1 28
ubhat 0:6cc76d70e2a1 29 void TimerTimeCounterInit( void )
ubhat 0:6cc76d70e2a1 30 {
ubhat 0:6cc76d70e2a1 31 TimeCounter.start( );
ubhat 0:6cc76d70e2a1 32 LoadTimeCounter.attach( &TimerResetTimeCounter, 10 );
ubhat 0:6cc76d70e2a1 33 }
ubhat 0:6cc76d70e2a1 34
ubhat 0:6cc76d70e2a1 35 TimerTime_t TimerGetCurrentTime( void )
ubhat 0:6cc76d70e2a1 36 {
ubhat 0:6cc76d70e2a1 37 CurrentTime += TimeCounter.read_us( );
ubhat 0:6cc76d70e2a1 38 TimeCounter.reset( );
ubhat 0:6cc76d70e2a1 39 TimeCounter.start( );
ubhat 0:6cc76d70e2a1 40 return ( ( TimerTime_t )CurrentTime );
ubhat 0:6cc76d70e2a1 41 }
ubhat 0:6cc76d70e2a1 42
ubhat 0:6cc76d70e2a1 43 TimerTime_t TimerGetElapsedTime( TimerTime_t savedTime )
ubhat 0:6cc76d70e2a1 44 {
ubhat 0:6cc76d70e2a1 45 CurrentTime += TimeCounter.read_us( );
ubhat 0:6cc76d70e2a1 46 TimeCounter.reset( );
ubhat 0:6cc76d70e2a1 47 TimeCounter.start( );
ubhat 0:6cc76d70e2a1 48 return ( TimerTime_t )( CurrentTime - savedTime );
ubhat 0:6cc76d70e2a1 49 }
ubhat 0:6cc76d70e2a1 50
ubhat 0:6cc76d70e2a1 51 TimerTime_t TimerGetFutureTime( TimerTime_t eventInFuture )
ubhat 0:6cc76d70e2a1 52 {
ubhat 0:6cc76d70e2a1 53 CurrentTime += TimeCounter.read_us( );
ubhat 0:6cc76d70e2a1 54 TimeCounter.reset( );
ubhat 0:6cc76d70e2a1 55 TimeCounter.start( );
ubhat 0:6cc76d70e2a1 56 return ( TimerTime_t )( CurrentTime + eventInFuture );
ubhat 0:6cc76d70e2a1 57 }
ubhat 0:6cc76d70e2a1 58
ubhat 0:6cc76d70e2a1 59 void TimerInit( TimerEvent_t *obj, void ( *callback )( void ) )
ubhat 0:6cc76d70e2a1 60 {
ubhat 0:6cc76d70e2a1 61 obj->value = 0;
ubhat 0:6cc76d70e2a1 62 obj->Callback = callback;
ubhat 0:6cc76d70e2a1 63 }
ubhat 0:6cc76d70e2a1 64
ubhat 0:6cc76d70e2a1 65 void TimerStart( TimerEvent_t *obj )
ubhat 0:6cc76d70e2a1 66 {
ubhat 0:6cc76d70e2a1 67 obj->Timer.attach_us( obj->Callback, obj->value );
ubhat 0:6cc76d70e2a1 68 }
ubhat 0:6cc76d70e2a1 69
ubhat 0:6cc76d70e2a1 70 void TimerStop( TimerEvent_t *obj )
ubhat 0:6cc76d70e2a1 71 {
ubhat 0:6cc76d70e2a1 72 obj->Timer.detach( );
ubhat 0:6cc76d70e2a1 73 }
ubhat 0:6cc76d70e2a1 74
ubhat 0:6cc76d70e2a1 75 void TimerSetValue( TimerEvent_t *obj, uint32_t value )
ubhat 0:6cc76d70e2a1 76 {
ubhat 0:6cc76d70e2a1 77 obj->value = value;
ubhat 0:6cc76d70e2a1 78 }