EFM32 Gecko Software Documentation
efm32g-doc-5.1.2
|
Power Supply Related Utility Functions for the Thunderboard Sense.
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_supply.c.
#include <stdio.h>
#include "em_device.h"
#include "em_cmu.h"
#include "em_gpio.h"
#include "em_emu.h"
#include "em_adc.h"
#include "em_prs.h"
#include "thunderboard/board.h"
#include "thunderboard/util.h"
#include "thunderboard/si7021.h"
Go to the source code of this file.
Functions | |
static void | adcDeInit (void) |
De-initializes the A/D converter. More... | |
static void | adcInit (void) |
Initializes the A/D converter. More... | |
static uint16_t | getAdcSample (void) |
Initiates an A/D conversion and reads the sample when done. More... | |
static float | measureSupplyIR (uint8_t loadSetting) |
Measures the unladed and loaded supply voltage and calculates the intermal resistance of the connected supply. The load is provided by the heater element built in the Si7021. More... | |
static float | measureSupplyVoltage (unsigned int avg) |
Measures the supply voltage by averaging multiple readings. More... | |
bool | UTIL_isLowPower (void) |
Checks if the current power supply has low power capability. 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... | |