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425 Nick666 1
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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// + Copyright (c) 04.2007 Holger Buss
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// + only for non-profit use
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// + www.MikroKopter.com
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// + see the File "License.txt" for further Informations
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// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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#include "main.h"
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volatile int  Aktuell_Nick,Aktuell_Roll,Aktuell_Gier,Aktuell_ax, Aktuell_ay,Aktuell_az, UBat = 100;
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volatile int  AccumulateNick = 0, AccumulateRoll = 0, AccumulateGier = 0;
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volatile int  accumulate_AccRoll = 0,accumulate_AccNick = 0,accumulate_AccHoch = 0;
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volatile char MessanzahlNick = 0, MessanzahlRoll = 0, MessanzahlGier = 0;
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volatile char messanzahl_AccNick = 0, messanzahl_AccRoll = 0, messanzahl_AccHoch = 0;
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volatile long Luftdruck = 32000;
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volatile int  StartLuftdruck;
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volatile unsigned int  MessLuftdruck = 1023;
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unsigned char DruckOffsetSetting;
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volatile int HoeheD = 0;
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volatile char messanzahl_Druck;
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volatile int  tmpLuftdruck;
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volatile unsigned int ZaehlMessungen = 0;
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//#######################################################################################
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//
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void ADC_Init(void)
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//#######################################################################################
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{
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    ADMUX = 0;//Referenz ist extern
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    ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0)|(1<<ADIE);
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    //Free Running Mode, Division Factor 128, Interrupt on
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}
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//#######################################################################################
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//
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void SucheLuftruckOffset(void)
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//#######################################################################################
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{
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 unsigned int off;
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 off = eeprom_read_byte(&EEPromArray[EEPROM_ADR_LAST_OFFSET]);
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 if(off > 20) off -= 10;
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 OCR0A = off;
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 Delay_ms(100);
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 if(MessLuftdruck < 850) off = 0;
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 for(; off < 250;off++)
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  {
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  OCR0A = off;
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  Delay_ms(50);
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  printf(".");  
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  if(MessLuftdruck < 900) break;
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  }
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 eeprom_write_byte(&EEPromArray[EEPROM_ADR_LAST_OFFSET], off);
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 DruckOffsetSetting = off;
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 Delay_ms(200);
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}
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//#######################################################################################
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//
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SIGNAL(SIG_ADC)
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//#######################################################################################
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{
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    static unsigned char kanal=0,state = 0;
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    signed int wert;   
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    ANALOG_OFF;
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    switch(state++)
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        {
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        case 0:
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            wert = (signed int) AdNeutralGier - ADC;
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            AccumulateGier += wert;     //
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            MessanzahlGier++;
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            Mess_Integral_Gier += wert;// / 16;
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            Mess_Integral_Gier2 += wert;
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            kanal = 1;
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            ZaehlMessungen++;
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            break;
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        case 1:
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            wert = (signed int) ADC - AdNeutralRoll;
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            Mess_IntegralRoll += wert;
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            Mess_IntegralRoll2 += wert;
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            if(ADC < 10)   wert = -700;
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            if(ADC > 1000) wert = +700;
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            AccumulateRoll += wert;
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            MessanzahlRoll++;
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            kanal = 2;
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            break;
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        case 2:
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            wert = (signed int) ADC - AdNeutralNick;
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            Mess_IntegralNick += wert;
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            Mess_IntegralNick2 += wert;
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            if(ADC < 10)   wert = -700;
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            if(ADC > 1000) wert = +700;
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            AccumulateNick += wert;
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            MessanzahlNick++;
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            kanal = 4;
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            break;
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        case 3:
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            UBat = (3 * UBat + ADC / 3) / 4;//(UBat + ((ADC * 39) / 256) + 19)  / 2;
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            kanal = 6;
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            break;
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        case 4:
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            Aktuell_ay = acc_neutral.Y - ADC;
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            accumulate_AccRoll += Aktuell_ay;
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            messanzahl_AccRoll++;
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            kanal = 7;
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            break;
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        case 5:
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            Aktuell_ax = ADC - acc_neutral.X;
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            accumulate_AccNick +=  Aktuell_ax;
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            messanzahl_AccNick++;
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                    kanal = 5;
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                    state = 6;
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            break;
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        case 6:
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            accumulate_AccHoch =  (signed int) ADC - acc_neutral.Z;
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            accumulate_AccHoch += abs(Aktuell_ay) / 4 + abs(Aktuell_ax) / 4;
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            if(accumulate_AccHoch > 1)
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             {
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              if(acc_neutral.Z < 800) acc_neutral.Z+= 0.02;
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             }  
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             else if(accumulate_AccHoch < -1)
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             {
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              if(acc_neutral.Z > 600) acc_neutral.Z-= 0.02;
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             }
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            messanzahl_AccHoch = 1;
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            Aktuell_az = ADC;
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            Mess_Integral_Hoch += accumulate_AccHoch;      // Integrieren
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            Mess_Integral_Hoch -= Mess_Integral_Hoch / 1024; // dämpfen
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                    kanal = 3;
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                    state = 7;
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            break;
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        case 7:
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            tmpLuftdruck += ADC;
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            if(++messanzahl_Druck >= 5)
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                {
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                MessLuftdruck = ADC;
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                messanzahl_Druck = 0;
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                                HoeheD = (int)(StartLuftdruck - tmpLuftdruck - HoehenWert);  // D-Anteil = neuerWert - AlterWert
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                Luftdruck = (tmpLuftdruck + 3 * Luftdruck) / 4;
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                HoehenWert = StartLuftdruck - Luftdruck;
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                tmpLuftdruck = 0;
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                }
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            kanal = 0;
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            state = 0;
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            break;
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        default:
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            kanal = 0;
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            state = 0;
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            break;
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        }
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    ADMUX = kanal;
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    ANALOG_ON;
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}