EFM32 Happy Gecko Software Documentation  efm32hg-doc-5.1.2
util.h File Reference

Detailed Description

Utility Functions for the Thunderboard Sense.

Version
5.1.1

License

Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com

This file is licensed under the Silicon Labs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement.

Definition in file util.h.

#include <stdint.h>
#include <stdbool.h>

Go to the source code of this file.

Macros

#define UTIL_SUPPLY_TYPE_AA   2
 
#define UTIL_SUPPLY_TYPE_AAA   3
 
#define UTIL_SUPPLY_TYPE_CR2032   4
 
#define UTIL_SUPPLY_TYPE_UNKNOWN   0
 
#define UTIL_SUPPLY_TYPE_USB   1
 

Functions

void UTIL_delay (uint32_t ms)
 Delays number of msTick Systicks (1 ms) More...
 
uint32_t UTIL_init (void)
 Sets up the SysTick timer for 1ms interrupts and initializes and starts the RTC timer. More...
 
bool UTIL_isLowPower (void)
 Checks if the current power supply has low power capability. More...
 
void UTIL_shutdown (void)
 Enter lowest power shutdown mode, EM4S. More...
 
void UTIL_sleep (uint32_t ms)
 Delays number of milliseconds in sleep mode (EM2) using the RTC. More...
 
uint32_t UTIL_sleepInit (void)
 Sets up the RTC timer used for sleep functions. More...
 
void UTIL_supplyGetCharacteristics (uint8_t *type, float *voltage, float *ir)
 Retrieves the supply characteristic variables. More...
 
uint8_t UTIL_supplyGetType (void)
 Returns the type of the power supply. More...
 
void UTIL_supplyProbe (void)
 Probes the connected supply and determines its type. The results are stored in global variables. More...
 
uint32_t UTIL_waitForEvent (uint32_t timeout)
 Delays number of milliseconds in sleep mode (EM2) using the RTC but but returns if an event wakes up the MCU. More...