96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/**
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* @file flowmeter.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 "nms_types.h"
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#include "flowmeter.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 void FlowmeterReadVoltage(FlowmeterMain_st * flowmeter_pst);
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FlowmeterMain_st *flowmeter_gpst;
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/******************************************************************************
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* Extern Function Definitions
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******************************************************************************/
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void FlowmeterInit(FlowmeterMain_st *flowmeter_pst)
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{
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if (flowmeter_pst == NULL)
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{
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/* ERROR */
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}
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flowmeter_pst->mKu_f32 = 5.0f; // Default value
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}
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void FlowmeterGetFlow(FlowmeterMain_st *flowmeter_pst)
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{
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if (flowmeter_pst == NULL)
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{
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/* ERROR */
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}
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FlowmeterReadVoltage(flowmeter_pst);
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flowmeter_pst->rawQ_f32 = flowmeter_pst->mKu_f32 * flowmeter_pst->voltage_f32;
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}
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float32 FlowmeterGetKu(FlowmeterMain_st *flowmeter_pst)
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{
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if (flowmeter_pst == NULL)
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{
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return 0.0f;
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}
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return flowmeter_pst->mKu_f32;
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}
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void FlowmeterSetKu(FlowmeterMain_st *flowmeter_pst, float32 ku_f32)
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{
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if (flowmeter_pst != NULL)
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{
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flowmeter_pst->mKu_f32 = ku_f32;
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}
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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 flowmeter_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 void FlowmeterReadVoltage(FlowmeterMain_st *flowmeter_pst)
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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(flowmeter_pst->channel_u32, &adcVal_u32);
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flowmeter_pst->voltage_f32 = (float32)adcVal_u32 * (ANALOG_MEAS_ADC_REF_VOLTAGE / ANALOG_MEAS_ADC_RESOLUTION);
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}
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