respirator.cpp File Reference

Entry point of ventilator program. More...

#include "../includes/config.h"
#include "Arduino.h"
#include <HardwareSerial.h>
#include <IWatchdog.h>
#include <LiquidCrystal.h>
#include "../includes/battery.h"
#include "../includes/blower.h"
#include "../includes/buzzer.h"
#include "../includes/buzzer_control.h"
#include "../includes/calibration.h"
#include "../includes/cpu_load.h"
#include "../includes/debug.h"
#include "../includes/end_of_line_test.h"
#include "../includes/keyboard.h"
#include "../includes/main_controller.h"
#include "../includes/main_state_machine.h"
#include "../includes/mass_flow_meter.h"
#include "../includes/parameters.h"
#include "../includes/pressure.h"
#include "../includes/pressure_valve.h"
#include "../includes/rpi_watchdog.h"
#include "../includes/screen.h"
#include "../includes/serial_control.h"
#include "../includes/telemetry.h"

Go to the source code of this file.

Functions
HardwareSerial	Serial6 (PIN_TELEMETRY_SERIAL_RX, PIN_TELEMETRY_SERIAL_TX)
void	setup (void)
void	loop (void)

Variables
HardwareTimer *	hardwareTimer1
HardwareTimer *	hardwareTimer3

Detailed Description

Entry point of ventilator program.

Author

Makers For Life

Copyright

Copyright (c) 2020 Makers For Life

Definition in file respirator.cpp.

Function Documentation

loop()

void loop

(

void

)

Definition at line 161 of file respirator.cpp.

{ COUNT_IDLE_CYCLE; }

Serial6()

HardwareSerial Serial6	(	PIN_TELEMETRY_SERIAL_RX	,
		PIN_TELEMETRY_SERIAL_TX
	)

setup()

void setup

(

void

)

Definition at line 49 of file respirator.cpp.

                 {
    // Nothing should be sent to Serial in production, but this will avoid crashing the program if
    // some Serial.print() was forgotten
    Serial.begin(115200);
    DBG_DO(Serial.println("Booting the system...");)
 
    startScreen();
 
    initBattery();
    if (isBatteryDeepDischarged()) {
        displayBatteryDeepDischarge();
 
        // Heartbeat fatal error periodically
        while (true) {
            sendBatteryDeeplyDischargedFatalError(getBatteryLevelX100());
            delay(1000);
        }
    }
 
    initTelemetry();
    sendBootMessage();
 
    // Timer for valves
    hardwareTimer3 = new HardwareTimer(TIM3);
    hardwareTimer3->setOverflow(VALVE_PERIOD, MICROSEC_FORMAT);
 
    // Valves setup
    inspiratoryValve = PressureValve(hardwareTimer3, TIM_CHANNEL_INSPIRATORY_VALVE,
                                     PIN_INSPIRATORY_VALVE, VALVE_OPEN_STATE, VALVE_CLOSED_STATE);
    inspiratoryValve.setup();
    hardwareTimer3->resume();
    expiratoryValve = PressureValve(hardwareTimer3, TIM_CHANNEL_EXPIRATORY_VALVE,
                                    PIN_EXPIRATORY_VALVE, VALVE_OPEN_STATE, VALVE_CLOSED_STATE);
    expiratoryValve.setup();
    hardwareTimer3->resume();
 
    // Blower setup
    hardwareTimer1 = new HardwareTimer(TIM1);
    hardwareTimer1->setOverflow(ESC_PPM_PERIOD, MICROSEC_FORMAT);
    blower = Blower(hardwareTimer1, TIM_CHANNEL_ESC_BLOWER, PIN_ESC_BLOWER);
    blower.setup();
 
    // Init controllers
    mainController = MainController();
    alarmController = AlarmController();
 
    // Init sensors
    inspiratoryPressureSensor = PressureSensor();
#ifdef MASS_FLOW_METER_ENABLED
    (void)MFM_init();
#endif
 
    // Setup pins of the microcontroller
    pinMode(PIN_PRESSURE_SENSOR, INPUT);
    pinMode(PIN_BATTERY, INPUT);
    pinMode(PIN_ENABLE_PWR_RASP, OUTPUT);
    pinMode(PIN_LED_START, OUTPUT);
    pinMode(PIN_LED_RED, OUTPUT);
    pinMode(PIN_LED_YELLOW, OUTPUT);
    pinMode(PIN_LED_GREEN, OUTPUT);
    pinMode(PB12, INPUT);
 
    // Turn on the Raspberry Pi power
    digitalWrite(PIN_ENABLE_PWR_RASP, PWR_RASP_ACTIVE);
#if DEBUG != 0
    rpiWatchdog.disable();
#endif
 
    // Activate test mode if a service button is pressed
    // The end of line test mode cannot be activated later on.
    // Autotest inputs: the service button on PB12, top right of the board's rear side
    if (HIGH == digitalRead(PB12)) {
        eolTest.activate();
        displayEndOfLineTestMode();
        while (HIGH == digitalRead(PB12)) {
            continue;
        }
    }
 
    // Catch potential Watchdog reset
    // cppcheck-suppress misra-c2012-14.4 ; IWatchdog.isReset() returns a boolean
    if (IWatchdog.isReset(true)) {
        // Run a high priority alarm
        BuzzerControl_Init();
        Buzzer_Init();
        Buzzer_High_Prio_Start();
        displayWatchdogError();
 
        // Heartbeat fatal error periodically
        while (true) {
            sendWatchdogRestartFatalError();
            delay(1000);
        }
    }
 
    initKeyboard();
    BuzzerControl_Init();
    Buzzer_Init();
    Calibration_Init();
 
    if (!eolTest.isRunning()) {
        mainStateMachine.setupAndStart();
 
        // Init the watchdog timer. It must be reloaded frequently otherwise MCU resests
        IWatchdog.begin(WATCHDOG_TIMEOUT);
        IWatchdog.reload();
    } else {
        eolTest.setupAndStart();
    }
}

Variable Documentation

hardwareTimer1

HardwareTimer* hardwareTimer1

Definition at line 44 of file respirator.cpp.

hardwareTimer3

HardwareTimer* hardwareTimer3

Definition at line 45 of file respirator.cpp.