mbusgateway3variant/cube/User/Src/frontend.c

#include <stdbool.h>

#include <main.h>
#include <adc.h>

#include <frontend.h>

#include <logger.h>



static const double SHUNT_RESISTOR = 20.0;
static const double U_REF = 3.3;
static const double I_THRESHOLD = 0.005;
static const uint16_t N_MAX = 4095;



static volatile uint16_t frontendAdcThreshold = 0;
static volatile bool frontendEnabled = false;


void frontendInit() {
    // double u_threshold = I_THRESHOLD * SHUNT_RESISTOR;
    // frontendAdcThreshold = (uint16_t) (u_threshold / U_REF * ((double) N_MAX));
    // logMsg("frontendInit, threshold calculated: %d", frontendAdcThreshold);

    HAL_ADCEx_Calibration_Start(&frontendAdc);
    logMsg("frontendInit, calibration done");
    HAL_ADC_Start_IT(&frontendAdc);
    logMsg("frontendInit, adc started");
}

void frontendSetThreshold(uint16_t threshold) {
    frontendAdcThreshold = threshold;
}

void frontendEnable() {
    frontendEnabled = true;
}

void frontendDisable() {
    frontendEnabled = false;
}

void frontendAdcCallback(ADC_HandleTypeDef* hadc) {
    uint16_t rawValue = HAL_ADC_GetValue(hadc);
    HAL_GPIO_TogglePin(Debug_Signal_GPIO_Port, Debug_Signal_Pin);

}