Subversion Repositories FlightCtrl

#include <avr/boot.h>

#include <avr/io.h>

#include <avr/interrupt.h>

#include <util/delay.h>

#include "timer0.h"

#include "timer2.h"

#include "uart0.h"

#include "output.h"

#include "attitude.h"

#include "commands.h"

#include "flight.h"

#include "rc.h"

#include "analog.h"

#include "configuration.h"

#include "controlMixer.h"

#include "eeprom.h"

#include "printf_P.h"

int16_t main(void) {

  uint16_t timer;

  // disable interrupts global

  cli();

  // disable watchdog

  MCUSR &= ~(1 << WDRF);

  WDTCSR |= (1 << WDCE) | (1 << WDE);

  WDTCSR = 0;

// This is strange: It should NOT be necessarty to do. But the call of the same,

// in channelMap_readOrDefault (if eeprom read fails) just sets all to 0,0,0,....

  channelMap_default();

  // initalize modules

  output_init();

  timer0_init();

  timer2_init();

  usart0_init();

  RC_Init();

  analog_init();

  // Parameter Set handling

  IMUConfig_readOrDefault();

  channelMap_readOrDefault();

  paramSet_readOrDefault();

  // enable interrupts global

  sei();

  printf("\n\r===================================");

  printf("\n\rFlightControl");

  printf("\n\rHardware: Custom");

  printf("\n\r     CPU: Atmega328");

  printf("\n\rSoftware: V%d.%d%c",

      VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH + 'a');

  printf("\n\r===================================");

  // Wait for a short time (otherwise the RC channel check won't work below)

  // timer = SetDelay(500);

  // while(!CheckDelay(timer));

  // Instead, while away the time by flashing the 2 outputs:

  // First J16, then J17. Makes it easier to see which is which.

  timer = setDelay(200);

  outputSet(0, 1);

  GRN_OFF;

  RED_ON;

  while (!checkDelay(timer))

    ;

  timer = setDelay(200);

  outputSet(0, 0);

  outputSet(1, 1);

  RED_OFF;

  GRN_ON;

  while (!checkDelay(timer))

    ;

  timer = setDelay(200);

  while (!checkDelay(timer))

    ;

  outputSet(1, 0);

  GRN_OFF;

  printf("\n\r===================================");

#ifdef USE_NAVICTRL

  printf("\n\rSupport for NaviCtrl");

#endif

#ifdef USE_DIRECT_GPS

  printf("\n\rDirect (no NaviCtrl) navigation");

#endif

  controlMixer_setNeutral();

  // Cal. attitude sensors and reset integrals.

  attitude_setNeutral();

  // Init flight parameters

  // flight_setNeutral();

  beep(2000);

  printf("\n\n\r");

  while (1) {

    if (runFlightControl) { // control interval

      runFlightControl = 0; // reset Flag, is enabled every 2 ms by ISR of timer0

      if (sensorDataReady != ALL_DATA_READY) {

        // Analog data should have been ready but is not!!

        debugOut.digital[0] |= DEBUG_MAINLOOP_TIMER;

      } else {

        debugOut.digital[0] &= ~DEBUG_MAINLOOP_TIMER;

      }

      PD2HIGH;

      // This is probably the correct order:

      // The attitude computation should not depend on anything from control (except maybe the estimation of control activity level)

      // The control may depend on attitude - for example, attitude control uses pitch and roll angles, compass control uses yaw angle etc.

      // Flight control uses results from both.

      calculateFlightAttitude();

      controlMixer_periodicTask();

      commands_handleCommands();

      flight_control();

      PD2LOW;

      // Allow Serial Data Transmit if motors must not updated or motors are not running

      if (!runFlightControl || !isFlying) {

        usart0_transmitTxData();

      }

      usart0_processRxData();

      if (checkDelay(timer)) {

        // Do nothing. The voltage on the input side of the regulator is <5V;

        // we must be running off USB power. Keep it quiet.

      } else if (UBat < staticParams.batteryWarningVoltage && UBat > UBAT_AT_5V) {

        beepBatteryAlarm();

      }

      timer = setDelay(20); // every 20 ms

      output_update();

    }

    calculateFeaturedServoValues();

    if (runFlightControl) { // Time for the next iteration was up before the current finished. Signal error.

      debugOut.digital[1] |= DEBUG_MAINLOOP_TIMER;

    } else {

      debugOut.digital[1] &= ~DEBUG_MAINLOOP_TIMER;

    }

  }

  return (1);

}