adc_if.c File Reference

Read status related to the chip (battery level, VREF, chip temperature). More...

#include "adc_if.h"
#include "sys_app.h"

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Macros
#define	TEMPSENSOR_TYP_CAL1_V   (( int32_t) 760)
#define	TEMPSENSOR_TYP_AVGSLOPE   (( int32_t) 2500)

Functions
static uint32_t	ADC_ReadChannels (uint32_t channel)
	This function reads the ADC channel.
void	SYS_InitMeasurement (void)
	Initializes the ADC input.
void	SYS_DeInitMeasurement (void)
	DeInitializes the ADC.
int16_t	SYS_GetTemperatureLevel (void)
	Get the current temperature.
uint16_t	SYS_GetBatteryLevel (void)
	Get the current battery level.

Variables
ADC_HandleTypeDef	hadc
	ADC handle.

Detailed Description

Read status related to the chip (battery level, VREF, chip temperature).

Author

MCD Application Team

Attention

Copyright (c) 2026 STMicroelectronics. All rights reserved.

This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

Definition in file adc_if.c.

Macro Definition Documentation

TEMPSENSOR_TYP_AVGSLOPE

#define TEMPSENSOR_TYP_AVGSLOPE   (( int32_t) 2500)

Internal temperature sensor, parameter Avg_Slope (unit: uV/DegCelsius). Refer to device datasheet for min/typ/max values.

Definition at line 45 of file adc_if.c.

Referenced by SYS_GetTemperatureLevel().

TEMPSENSOR_TYP_CAL1_V

#define TEMPSENSOR_TYP_CAL1_V   (( int32_t) 760)

Internal temperature sensor, parameter V30 (unit: mV). Refer to device datasheet for min/typ/max values.

Definition at line 44 of file adc_if.c.

Referenced by SYS_GetTemperatureLevel().

Function Documentation

ADC_ReadChannels()

uint32_t ADC_ReadChannels ( uint32_t channel )

static

This function reads the ADC channel.

Parameters

channel

channel number to read

Returns

adc measured level value

Wait for end of conversion

Wait for end of conversion

Definition at line 181 of file adc_if.c.

References Error_Handler(), hadc, and MX_ADC_Init().

Referenced by SYS_GetBatteryLevel(), and SYS_GetTemperatureLevel().

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SYS_DeInitMeasurement()

void SYS_DeInitMeasurement

(

void

)

DeInitializes the ADC.

Definition at line 90 of file adc_if.c.

SYS_GetBatteryLevel()

uint16_t SYS_GetBatteryLevel

(

void

)

Get the current battery level.

Returns

value battery level in linear scale

Definition at line 139 of file adc_if.c.

References ADC_ReadChannels().

Referenced by GetBatteryLevel(), mems_WriteToSystemParams(), and SYS_GetTemperatureLevel().

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SYS_GetTemperatureLevel()

int16_t SYS_GetTemperatureLevel

(

void

)

Get the current temperature.

Returns

value temperature in degree Celsius( q7.8 )

< Internal temperature sensor, parameter Avg_Slope (unit: uV/DegCelsius). Refer to device datasheet for min/typ/max values.

< Internal temperature sensor, parameter V30 (unit: mV). Refer to device datasheet for min/typ/max values.

Definition at line 97 of file adc_if.c.

References ADC_ReadChannels(), SYS_GetBatteryLevel(), TEMPSENSOR_TYP_AVGSLOPE, and TEMPSENSOR_TYP_CAL1_V.

Referenced by EnvSensors_Read().

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SYS_InitMeasurement()

void SYS_InitMeasurement

(

void

)

Initializes the ADC input.

Definition at line 79 of file adc_if.c.

References hadc.

Referenced by SystemApp_Init().

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Variable Documentation

hadc

ADC_HandleTypeDef hadc

extern

ADC handle.

Definition at line 27 of file adc.c.