QSL SimplePublish

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/*
Copyright (c) 2016, Dust Networks. All rights reserved.

Port of the time module to the NUCLEO-L053R8.

\license See attached DN_LICENSE.txt.
*/

#include "dn_time.h"
#include "mbed.h"
#include "millis.h"
#include "dn_debug.h"

//=========================== defines =========================================


//=========================== variables =======================================


//=========================== prototypes ======================================


//=========================== public ==========================================

uint32_t dn_time_ms(void)
{
	/*
	A simple library that utilize SysTick is used instead of the mbed Timer
	class, as the latter is based on 32-bit microsecond counter and thus
	overflows long before 32-bits of milliseconds are used.
	*/
	uint32_t ms = millis();
	return ms;
}

void dn_sleep_ms(uint32_t milliseconds)
{
	 /*
	 A simple delay is used for simplicity in this example.
	 To save power, we could instead have initialized a timer to fire an
	 interrupt after the set number of milliseconds, followed by entering
	 a low-power sleep mode. Upon wake up, we would have to check that we
	 were indeed woken by said interrupt (and e.g. not an USART interrupt)
	 to decide if we should go back to sleep or not.
	 */
	 wait_ms(milliseconds);
}

//=========================== private =========================================


//=========================== helpers =========================================