75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/**
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* @file pressureSensor.c
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*
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* @copyright Nehemis SARL reserves all rights even in the event of industrial
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* property rights. We reserve all rights of disposal such as
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* copying and passing on to third parties.
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*
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* @brief
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*
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*/
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/******************************************************************************
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* Include Header Files
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******************************************************************************/
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#include "pressureSensor.h"
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#include "analogMeasurement.h"
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/******************************************************************************
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* Type declarations
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******************************************************************************/
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/******************************************************************************
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* Macro Constant Declarations
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******************************************************************************/
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/******************************************************************************
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* Private function Declarations
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******************************************************************************/
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static float PressureSensorReadVoltage(uint32 channel_u32);
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/******************************************************************************
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* Extern Function Definitions
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******************************************************************************/
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void PressureSensorInit(PressureSensorMain_st *pressureSensor_pst)
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{
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pressureSensor_pst->rawT_f32 = 0.0f;
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if (pressureSensor_pst == NULL)
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{
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/* ERROR */
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}
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}
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void PressureSensorGetVal(PressureSensorMain_st *pressureSensor_pst)
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{
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if (pressureSensor_pst == NULL)
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{
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/* ERROR */
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}
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pressureSensor_pst->rawT_f32 = (PressureSensorReadVoltage(pressureSensor_pst->channel_u32) - 0.5f) / 0.2f;
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}
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/******************************************************************************
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* Private function Definitions
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******************************************************************************/
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/**
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* @brief Function to read ADC voltage data which is directly coming from the sensor.
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*
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* @param pressureSensor_pst : Pointer to main strucutre of the module.
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*
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* @return ADC output voltage based on sensor reading.
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*
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*/
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static float32 PressureSensorReadVoltage(uint32 channel_u32)
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{
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/* Convert ADC value to voltage (assuming 12-bit resolution and 3.3V reference) */
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uint32 adcVal_u32 = 0uL;
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AnalogMeasurementReadData(channel_u32, &adcVal_u32);
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float32 voltage_f32 = (float32)adcVal_u32 * (ANALOG_MEAS_ADC_REF_VOLTAGE / ANALOG_MEAS_ADC_RESOLUTION);
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return voltage_f32;
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}
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