Beispiel #1
0
int main (void) {
   unsigned char kommando[32];                    		// Kommandozeilenbuffer
   unsigned char* k_sp = kommando;		  		// und dazugehöriger Pointer
   volatile struct buffer put_buffer, get_buffer; 		// Sende- u. Empfangsbuffer

   buffer_init(put_buffer);
   buffer_init(get_buffer);
   put_bp=&put_buffer;
   get_bp=&get_buffer;

   DDRD  = 0xE0;         // Port D, Pin 6,7,8 als Ausgang

   tim0_init();          // Initialisiere Timer_0
   tim1_init();          // Initialisiere Timer_1
   tim2_init();          // Initialisiere Timer_2
   uart_init();          // Initialisiere serielle Schnittstelle
   adc_init();		 // Initialisiere Analog-Digitalwandler ADC

   uart_puts(version);	 // Startmeldung/Version ausgeben
   beep(1000);
   uart_puts("\n> ");    // newline und prompt
   UCSRB |= (1<<RXCIE);  // Empfaenger-Interrupts freigeben
   sei();                // Interrupts global freigeben


   while(1) {

     while(buffer_size(get_bp)){
       *k_sp = buffer_read(get_bp);
       uart_putc(*k_sp);
       if(*k_sp == '\n' || *k_sp == '\r'){
         *k_sp = 0x00;
         k_sp=kommando;
         uart_putc('\n');
//         uart_puts(k_sp);   // Ausgabe für Testwecke
	 parser(k_sp);
       }
       else
         k_sp++;
	 // hier noch Bufferoverflow abfangen
     }
           
     if(status_LED2 == 's'){
       PORTD ^= 1<<PD6;       // toggle LED2
       my_delay_ms(delay);    // warte delay ms
       PORTD ^= 1<<PD6;       // toggle LED2
       status_LED2 = '0';     // Status_Flag auf Aus
     }
     if(status_LED2 == 't'){
       my_delay_ms(delay);    // warte delay ms
       PORTD ^= 1<<PD6;       // toggle LED2
     }
   } 
   /* wird nie erreicht */
   return 0;
}
Beispiel #2
0
int main(void)
{
   RCC_Configuration();
   GPIO_Configuration();

   RCC_ClocksTypeDef RCC_Clocks;
   RCC_GetClocksFreq(&RCC_Clocks);
   SysTick_Config(RCC_Clocks.HCLK_Frequency / 1000 - 1);

   setup_adc();
   tim1_init();
   usart_init();

   PWM_U = 0;
   PWM_V = 0;
   PWM_W = 0;

   while(1){
      if(uartsend == 1){
         amp = AMP(amp_raw);
         volt = VOLT(volt_raw);
         if(temp_raw < ARES && temp_raw > 0){
            temp = TEMP(temp_raw);
         }
         from_hv.dc_volt = TOFIXED(volt);
         from_hv.dc_cur =  TOFIXED(amp);
         from_hv.hv_temp = TOFIXED(temp);
#ifdef TROLLER
         from_hv.dc_cur =  TOFIXED(0);
         from_hv.hv_temp = TOFIXED(0);
         from_hv.a = TOFIXED(AMP(ADCConvertedValue[1]));
         from_hv.b = TOFIXED(AMP(ADCConvertedValue[2]));
         from_hv.c = TOFIXED(AMP(ADCConvertedValue[3]));
#endif
         uartsend = 0;
         while (USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET);
         USART_SendData(USART2, 0x154);
         for(int j = 0;j<sizeof(from_hv_t);j++){
            while (USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET);
            USART_SendData(USART2, ((uint8_t*)&from_hv)[j]);
         }
      }
      //GPIOA->BSRR = (GPIOA->ODR ^ GPIO_Pin_2) | (GPIO_Pin_2 << 16);//toggle red led
   }
}
Beispiel #3
0
int main ( void )
{

    //TRISA = 0b0010000000000000;
    TRISA = 0b00001111;
    TRISAbits.TRISA12 = 0;
    
    TRISCbits.TRISC1 = 0;
    TRISCbits.TRISC2 = 0;
    TRISCbits.TRISC3 = 0;
    TRISCbits.TRISC4 = 0;
    
    //TRISD = 0;
    TRISD = 0b0000000000010000; // RD11: DIR2; RD8: PWM2
    
    //TRISE = 0b00001000;
    TRISE = 0b00001000; // RE6: DIR1; RE0: PWM1
    TRISEbits.TRISE7 = 0; 
   
    //LCD an
    _PCFG16 = 1; // AN16 is digital
    _PCFG17 = 1; // AN17 is digital
    _PCFG18 = 1; // AN18 is digital
    _PCFG19 = 1; // AN19 is digital
    _PCFG20 =1;
    _PCFG31=1;
    
    //pwm analog select
    _PCFG24=1;
    _PCFG30=1;
    
    //RE4 for lcd r/s
     _PCFG28=1;
     TRISEbits.TRISE4 = 0;
    
    AD1PCFGHbits.PCFG28 = 1;
    AD1PCFGHbits.PCFG27 = 1;
    AD1PCFGHbits.PCFG30 = 1;
    AD1PCFGHbits.PCFG24 = 1;
    AD1PCFGH = 0x0020;
    TRISAbits.TRISA13 = 1;
    //set pwm low
    PWM1=0;
    PWM2=0;
    
    SYS_Initialize ( ) ;
    
    CLKDIVbits.FRCDIV = 0;
    CLKDIVbits.PLLPOST = 0;  // N2 = 2
    CLKDIVbits.PLLPRE = 0;  // N1 = 2
    PLLFBD = (Fosc*N1_default*N2_default/Ffrc) - M_default; // M = 8 -> Fosc = 7.3728 MHz * 8 / 2 / 2 = 16 MHz
    while(!OSCCONbits.LOCK);	// Wait for PLL to lock
	RCONbits.SWDTEN = 0;      // Disable Watch Dog Timer
    
    //TRISF = 0;
    gpsLock = 0;
   
    lcd_init();
    print_lcd("Initializing");
    //delay_ms(500);
    //lcd_clear();
    
    /*lcd test
    char line1[] = " On Route ";
    char line2[] = " Arrived ";
    //send_command_byte(0xFF);
    //while(1){send_command_byte(0xFF);send_data_byte(0);}
   // delay_ms(2);
    //send_command_byte(0x02); // Go to start of line 1
    //send_command_byte(0b00001111); // Display: display on, cursor on, blink on
    //send_command_byte(0b00000110); // Set entry mode: ID=1, S=0
    //send_command_byte(0b00000001); // Clear display
    
    print_lcd(line1);
    delay_ms(5000);
    lcd_clear();
    print_lcd(line2);
    //send_command_byte(0xC0); // Go to start of line 1
    //while(1){send_command_byte(0b00000001);}
    while(1);*/
    
    /*int a;
    long long int ct;
    int i;
    int j=0;*/
    //i2c init

    
    //uart init
    UART_Initialize();
    delayMs(100);
    
    
    /* while(1){//test for delay ms configuration
        //PORTDbits.RD1 = 1;
        //delayUs(10);
        //for(i = 0;i <7;i++);
        delayMs(10);
        PORTDbits.RD12 = 1;
        //for (i = 0; i < 1000; i++);
        //PORTDbits.RD1 = 0;
        //for(i = 0;i <7;i++);
        delayMs(10);
        
        PORTDbits.RD12 = 0;
        //for (i  = 0; i < 1000; i++);
    }*/
    
    //ultrasonic test
    
   /* while(1){
        long double x;
        delayMs(500);
        PORTEbits.RE4 = 1;                  //TRIGGER HIGH
        PORTDbits.RD5 = 1; 
        delay_us(10);                     //10uS Delay 
        lcd_clear();
        ultraSonicEn = 1;
        ultraSonicCount = 0;

        PORTEbits.RE4 = 0;                  //TRIGGER LOW
        PORTDbits.RD5 = 0; 
        
        
        while (!PORTDbits.RD4);              //Waiting for Echo
       IEC0bits.T2IE = 1; //enable timer
        while(PORTDbits.RD4);// 
        IEC0bits.T2IE = 0; //disable timer
        x = ultraSonicCount/TICKS_PER_METER;
        sprintf(outputBuf,"%lf",x); 
        print_lcd(outputBuf);
    }*/

    //TX_str(endGPS);
    //delayMs(3000);
    //TX_str(startGPS);
    /*TX_str(startGPShot);
    delayMs(2000);
    while ( !gpsLock ) {
        TX_str(getGPS);
        delayMs(500);
    }*/
    
   //TCP code
    
    TX_str(openNet);
    delayMs(5000);
    TX_str(openConnection);
    delayMs(5000);
 
    // while(!BUTTON_IsPressed ( BUTTON_S3 ));
    //TX_str(sprintf("%s%d\r",sendTCP, strlen("10")));
    sprintf(outputBuf2,"2\n%lf,%lf\n\r",roverLog,roverLat );
    sprintf(cmdBuf,"%s%d\r", sendTCP,strlen(outputBuf2));
         
    TX_str(cmdBuf);
    delayMs(3000);
    TX_str(outputBuf2);
    while(!waypointsReady || !gpsLock);
    
    
    //while(1);
    delayMs(7000);
    lcd_clear();
    print_lcd("waypoints locked");
    
    i2c_init();
    //i2c_write3(0x3c, 0x00, 0x70);
    i2c_write3(0x3c, 0x00, 0b00011000);
    //i2c_write3(0x3c, 0x01, 0b11000000);
    i2c_write3(0x3c, 0x01, 0xA0);
    i2c_write3(0x3c, 0x02, 0x00);
    
    //timer init, do this after other initializations
    motorDuty=0;
    tim1_init();
    tim2_init();
   
    /*
    double angleTolerance = 8.0;
     motorDuty=2;
 
    while (1){ //adjust


        double angleDiff = headingDiff(0,roverHeading );


        if (angleDiff > 0 ||abs(angleDiff) > 175 ){ //turn left

            PWM1_DIR = 0; //left            NOTE: 0 is forward, 1 is reverse
            PWM2_DIR = 1; //right
        } else{ // turn right

            PWM1_DIR = 1;
            PWM2_DIR = 0;
        }
        if (abs(angleDiff) < angleTolerance){
            motorDuty = 0;
            //break;
        }else{
            //motorDuty =4;
            motorDuty =2;
        }   
        delayMs(13);
        updateHeading();
    }*/
    
    //hardcoded gps for tcpip test
    
    
     /*while(1){
//        PORTDbits.RD5 = 1;
//        for (a = 0; a < (100/33); a++) {}
//        PORTDbits.RD5 = 0;
//        for (a = 0; a < (100/33); a++) {}
        ct = 0;
        //TMR2 = 0;//Timer Starts
        delayMs(60);
        PORTEbits.RE4 = 1;                  //TRIGGER HIGH
        PORTDbits.RD5 = 1; 
        delay_us(15);
                           //10uS Delay 
        PORTEbits.RE4 = 0;                  //TRIGGER LOW
        PORTDbits.RD5 = 0; 
        while (!PORTDbits.RD4){              //Waiting for Echo
            ct++;
        }
            //T2CONbits.TON = 1;
        while(PORTDbits.RD4) {
            ct++;
        }// {
        //T2CONbits.TON = 0;
        sprintf(outputBuf,"%lld", ct); 
        //a = TMR2;
        //a = a / 58.82;
        
        //long int p;
        //for(p = 0; p <100000; p++);
        
    }*/
    //tim1_init();
    //while ( 1 );
    //UART_Initialize();
    
    /* Infinite Loop */
    /*
     long int i;
    while ( 1 )
    {//test for delay ms configuration
        //PORTDbits.RD1 = 1;
        delayMs(10);
        PORTDbits.RD12 = 1;
        //for (i = 0; i < 1000; i++);
        //PORTDbits.RD1 = 0;
        delayMs(10);
        PORTDbits.RD12 = 0;
        //for (i = 0; i < 1000; i++);
    }*/
    //IEC0bits.T1IE = 0;
    
    //IEC0bits.T1IE = 1;
    //motorDuty =2;
    motorStopFlag = 0; //ready to go
    char tempBuf1[50];
    int wapointsVisited;
    double desiredHeading = 0;
    double dToWaypoint = 99999.9;
    double angleTolerance = 6.0;
    for (wapointsVisited =0; wapointsVisited<numGPSpoints;wapointsVisited++ )
    {
        dToWaypoint = 99999.9;
        while (1)
        {

            int f;
            roverLog = 0;
            roverLat = 0;
            for(f = 0; f < ROVER_LEN; f++){
                roverLog+=roverlog[f]/ROVER_LEN_D;
                roverLat+=roverlat[f]/ROVER_LEN_D;
            }
            
            
            dToWaypoint = dist(convertGPSToDeg(roverLat),convertGPSToDeg(roverLog),convertGPSToDeg(gpsLat[wapointsVisited]),convertGPSToDeg(gpsLonge[wapointsVisited]));
            if(dToWaypoint <= 3.0){break;} //go to next waypoint

            desiredHeading = 330.0;
            desiredHeading = bearing(convertGPSToDeg(roverLat),convertGPSToDeg(roverLog),convertGPSToDeg(gpsLat[wapointsVisited]),convertGPSToDeg(gpsLonge[wapointsVisited]));
            
            updateHeading();
            
                
            if (!(abs(headingDiff(desiredHeading,roverHeading )) < angleTolerance))
            {
                motorDuty = 0;  //stop
                delayMs(300);
                while (1) //ADJUSTMENT LOOP
                {
                   
                    double angleDiff = headingDiff(desiredHeading,roverHeading );

                    //double dist = ultraSonicPing();
                    /*sprintf(tempBuf1,"%f",dist);
                    lcd_clear();
                    print_lcd(tempBuf1);*/
                     if (abs(angleDiff) < angleTolerance){
                        motorDuty = 0;
                        /*sprintf(tempBuf1,"%f",roverHeading);
                        IEC0bits.T1IE = 0;
                        print_lcd(tempBuf1);
                        IEC0bits.T1IE = 1;*/
                        break;
                    }
                    if (angleDiff > 0 || abs(angleDiff) > 175 ){ //turn right
                        /*PORTDbits.RD4 = 1; //right 0 is forwards, 1 i backwards
                        PORTDbits.RD2 = 1;
                        PORTDbits.RD8 = 0; //left*/
                        PWM1_DIR = 0; //left            NOTE: 0 is forward, 1 is reverse
                        PWM2_DIR = 1; //right
                    } else{ // turn left
                        /*PORTDbits.RD4 = 0; //right 0 is forwards, 1 i backwards
                        PORTDbits.RD2 = 0;
                        PORTDbits.RD8 = 1; //left*/
                        PWM1_DIR = 1;
                        PWM2_DIR = 0;
                    }
                   
                       
                    motorDuty =3;
                     
                    delayMs(15);
                    updateHeading();
        //        sprintf(tempBuf1,"%f",roverHeading);
        //        IEC0bits.T1IE = 0;
        //        lcd_clear();
        //        print_lcd(tempBuf1);
        //        IEC0bits.T1IE = 1;
                //delayMs(1000);
                //for(p = 0; p <100000; p++);
                }
            }
            PWM1_DIR = 0; //left            NOTE: 0 is forward, 1 is reverse
            PWM2_DIR = 0;

            motorDuty = 5;
            ultraSonicDelayEnable = 1;
            //frequency is around 20kHz
            while (ultraSonicDelayCount < 60000){ //for 4 seconds poll ultrasonic and check for obsticles
                long double x;
                //PORTEbits.RE4 = 1;                  //TRIGGER HIGH
                PORTDbits.RD5 = 1; 
                delay_us(10);                     //10uS Delay 
                lcd_clear();
                ultraSonicEn = 1;
                ultraSonicCount = 0;

                //PORTEbits.RE4 = 0;                  //TRIGGER LOW
                PORTDbits.RD5 = 0; 


                while (!PORTDbits.RD4);              //Waiting for Echo
               IEC0bits.T2IE = 1; //enable timer
                while(PORTDbits.RD4);// 
                IEC0bits.T2IE = 0; //disable timer
                ultraSonicEn = 0;
                x = ultraSonicCount/TICKS_PER_METER;
                if (x <= 1.4){
                    motorDuty = 0;
                }else{
                    motorDuty = 5;
                }
                delayMs(200);
            }
            ultraSonicDelayEnable = 0;
            ultraSonicDelayCount = 0;
        }
        
        motorDuty = 0;
        delayMs(1000);
        //IEC0bits.T1IE = 0;
        lcd_clear();
        char buf3[40];
        sprintf(buf3, "reached %d", wapointsVisited);
        print_lcd(buf3);
        delayMs(3000);
        //IEC0bits.T1IE = 1;
        
    }
    //IEC0bits.T1IE = 0;
    lcd_clear();
    print_lcd("ARRIVED!!!");
    //IEC0bits.T1IE = 1;
    while (1);
}
int main(void) {

  InitPeripherals();
  mRedOFF; mGreenOFF; mBlueOFF;

  // startup blink
  const float kShortDelay = 0.1;
  const float kLongDelay = 0.3;
  mRedON; mGreenON; mBlueON;
  DelaySeconds(kShortDelay);
  mRedOFF; mGreenOFF; mBlueOFF;
  DelaySeconds(kLongDelay);
  mRedON; mGreenON; mBlueON;
  DelaySeconds(kShortDelay);
  mRedOFF; mGreenOFF; mBlueOFF;
  DelaySeconds(kLongDelay);
  mRedON; mGreenON; mBlueON;
  DelaySeconds(kShortDelay);
  mRedOFF; mGreenOFF; mBlueOFF;
  DelaySeconds(kLongDelay);

  UsbInterface usb = UsbInterface();
  usb.Init();

  PersistentMemory mem;

  DelaySeconds(1.0f);
  ZigbeeInterface zig = ZigbeeInterface();
  DelaySeconds(0.05f);
  zig.Init(mem);

  error_reporting_com1 = &usb;
  error_reporting_com2 = &zig;

  Mpu60XXImu imu(mem);
  GyroAccelDriftUkfIo est;

  BatteryMonitor battery(mem);
  battery_ptr = &battery;

  MotorHal motor_hal(mem);
  motor_hal_ptr = &motor_hal;

  // Get_pos addition:
  InitPositionSensor();
  tim1_set_position_callback_2(get_position);
  QuatPD pd(mem);
  PulsingCoaxControllerQuat uav(mem, pd, imu, est, motor_hal);

  CoaxOpenController open_controller(mem);
  CoaxOpenAttitudeController open_attitude_controller(mem, est);

  monitor = LoopMonitor(mem);
  UavReporter reporter(mem, imu, est, motor_hal, battery, uav, open_attitude_controller, pd, monitor);
  StateMachine state_machine;

  mem.Freeze();  // freeze memory to make writes possible

  imu.InitFromMemory();
  //imu.DefaultAccelSensitivity(1); // overwrite scale for off-datasheet fix
  imu.flip_z = 1;                   // flip z-axis direction for upside-down imu

  #ifdef STREAM_IMU_RAW
    imu_raw_msg_logger_init(imu);
  #endif

  monitor.InitFromMemory();

  PlayTimebase();
  imu.StartRead();
  DelayMilliseconds(10);

  tim1_init();
  tim1_set_supply_volts(3.7f);

  //////////////////////////////////////////////////////////////////////////////
  // Main Loop
  while(1) {
                                                                                monitor.Profile(0);
    ////////////////////////////////////////////////////////////////////////////
    // Get IMU Data and Start New Measurement
    while(!imu.FinishRead()) {};
    #ifdef STREAM_IMU_RAW
      imu_raw_msg_logger_push();
    #endif
    DelayMicroseconds(50); // this seems to be critical (?!?)
    imu.StartRead();
                                                                                monitor.Profile(1);
    ////////////////////////////////////////////////////////////////////////////
    // Update Estimator with Measurement
    est.Update(imu.time, imu.w, imu.a);

    ////////////////////////////////////////////////////////////////////////////
    // Control                                                                             

    // update control laws
    uav.Update();
    open_controller.Update();
    open_attitude_controller.Update();

    // map controllers to outputs based on state
    enum control_state state = state_machine.get_state();

    // in STOP state, send active kill messages to motors
    if(state == kStop) {
      mGreenOFF; mAmberON;
      motor_hal.set_top_cmd_volts(0);
      motor_hal.set_top_cmd_volts_pulse_amp(0);
      motor_hal.set_top_cmd_pulse_phase(0);
      motor_hal.set_bottom_cmd_volts(0);
    }

    // in STANDBY state, send no motor commands except on entry
    else if(state == kStandby) {
      mGreenOFF; mAmberOFF;
      if(state_machine.get_standby_needs_init()) {
        motor_hal.set_top_cmd_volts(0);
        motor_hal.set_top_cmd_volts_pulse_amp(0);
        motor_hal.set_top_cmd_pulse_phase(0);
        motor_hal.set_bottom_cmd_volts(0);
        state_machine.clear_standby_needs_init();
      }
    }

    // in QUAT state, send motor commands according to quat control law
    else if(state == kQuat) {
      mGreenON; mAmberOFF;
      motor_hal.set_top_cmd_volts(uav.top_mean);
      motor_hal.set_top_cmd_volts_pulse_amp(uav.top_pulse_amp);
      motor_hal.set_top_cmd_pulse_phase(uav.top_pulse_phase);
      motor_hal.set_bottom_cmd_volts(uav.bottom_mean);
    }

    // in OPEN state, send motor command according to open motor control commands
    else if(state == kOpen) {
      mGreenON; mAmberOFF;
      motor_hal.set_top_cmd_volts(open_controller.top_mean);
      motor_hal.set_top_cmd_volts_pulse_amp(open_controller.top_pulse_amp);
      motor_hal.set_top_cmd_pulse_phase(open_controller.top_pulse_phase);
      motor_hal.set_bottom_cmd_volts(open_controller.bottom_mean);
    }

    // in OPEN ATTITUDE state, send motor command according to open motor control commands
    else if(state == kOpenAttitude) {
      mGreenON; mAmberOFF;
      motor_hal.set_top_cmd_volts(open_attitude_controller.top_mean);
      motor_hal.set_top_cmd_volts_pulse_amp(open_attitude_controller.top_pulse_amp);
      motor_hal.set_top_cmd_pulse_phase(open_attitude_controller.top_pulse_phase);
      motor_hal.set_bottom_cmd_volts(open_attitude_controller.bottom_mean);
    }
                                                                                monitor.Profile(2);
    ////////////////////////////////////////////////////////////////////////////
    // Packet Communication
    uint8_t is_data;    // 1 iff data received
    uint8_t *rx_data;   // temporary pointer to received type+data bytes
    uint8_t rx_length;  // number of received type+data bytes

    ////////////////////////////////////////////////////////////////////////////
    // USB Input
    is_data = 0;
    usb.GetBytes();
    while(usb.PeekPacket(&rx_data, &rx_length)) {
      zig.ReadMsg(usb, rx_data, rx_length);
      imu.ReadMsg(usb, rx_data, rx_length);
      est.ReadMsg(usb, rx_data, rx_length);
      mem.ReadMsg(usb, rx_data, rx_length);
      uav.ReadMsg(usb, rx_data, rx_length);
      open_controller.ReadMsg(          usb, rx_data, rx_length);
      open_attitude_controller.ReadMsg( usb, rx_data, rx_length);
      pd.ReadMsg(       usb, rx_data, rx_length);
      monitor.ReadMsg(  usb, rx_data, rx_length);
      motor_hal.ReadMsg(usb, rx_data, rx_length);
      battery.ReadMsg(  usb, rx_data, rx_length);
      reporter.ReadMsg( usb, rx_data, rx_length);
      state_machine.ReadMsg(usb, rx_data, rx_length);
      usb.DropPacket();
      is_data = 1;
    } // while peek...
    if(is_data) {
      usb.SendNow();
    }

    ////////////////////////////////////////////////////////////////////////////
    // Radio Input
    is_data = 0;
    zig.GetBytes();
    while(zig.PeekPacket(&rx_data, &rx_length)) {
      #ifdef STREAM_IMU_RAW
        if(rx_data[0] == kTypeQuatPilot || rx_data[0] == kTypeQuatFullObsPilot || rx_data[0] == kTypeOpenPilot || rx_data[0] == kTypeOpenAttitudePilot) {
          imu_raw_msg_logger_send(zig);
        }
      #endif

      zig.ReadMsg(zig, rx_data, rx_length);
      imu.ReadMsg(zig, rx_data, rx_length);
      est.ReadMsg(zig, rx_data, rx_length);
      mem.ReadMsg(zig, rx_data, rx_length);
      uav.ReadMsg(zig, rx_data, rx_length);
      open_controller.ReadMsg(          zig, rx_data, rx_length);
      open_attitude_controller.ReadMsg( zig, rx_data, rx_length);
      pd.ReadMsg(       zig, rx_data, rx_length);
      monitor.ReadMsg(  zig, rx_data, rx_length);
      motor_hal.ReadMsg(zig, rx_data, rx_length);
      battery.ReadMsg(  zig, rx_data, rx_length);
      reporter.ReadMsg( zig, rx_data, rx_length);
      state_machine.ReadMsg(zig, rx_data, rx_length);
      zig.DropPacket();
      is_data = 1;
    } // while peek...
                                                                                monitor.Profile(3);
    if(is_data) {
      zig.SendNow();
    }
                                                                                monitor.Profile(4);
                                                                                monitor.Profile(5);
    ////////////////////////////////////////////////////////////////////////////    
    // Throttle main loop to main_freq
    monitor.EndMainLoop();
                                                                                monitor.Profile(6);
                                                                                //monitor.SendProfile(usb);
                                                                                //usb.SendNow();
  } // while(1)
  return(0);
}