3x ADC auslesen

[JeyBee]

Neues Problem:

Ich möchte, dass der Sensor in der Mitte auf dem Servo sich wärend des fahrens dreht, und in 3 Stellungen eine Messung macht. Jedoch kann die MCU ja immer nur eine Sache pro Takt machen, desshalb wärden die anderen 3 Sensoren einfach ignoriert -> der Bot fährt überall rein.

Ich habe den Code mal gepastet:
http://rafb.net/p/pHGMMB69.html

 #include <avr/io.h>
#include <stdlib.h>
#include <inttypes.h>
#include <avr/interrupt.h>
#include <util/delay.h>

volatile unsigned char servopos0, p=0;

#define SERVO_0_PIN 7
#define SERVOPORT PORTC
#define DDRSERVO DDRC

#ifndef F_CPU
#define F_CPU 8000000UL
#endif

void servo_init(void)
{

TIMSK|=(1<<OCIE2); // Interrupt gestatten
TCCR2 |= (1<<WGM21) | (1<<CS20); // CTC-Mode, no prescaling (= wäre sicherer)
OCR2 = F_CPU/100000; // 100000kHz
DDRSERVO |= (1<<SERVO_0_PIN);
}

ISR(TIMER2_COMP_vect)
{
char cSREG;
cSREG = SREG;
static int scount;
if(scount>servopos0)SERVOPORT&=~(1<<SERVO_0_PIN);
else SERVOPORT|=(1<<SERVO_0_PIN);
if(scount<2000)scount++;
else {scount=0; if(p) p--;}
SREG = cSREG;
}

uint16_t readADC(uint8_t channel)
{
   uint16_t result;

   ADCSRA = (1<<ADEN) | (1<<ADPS2) | (1<<ADPS1); // ADC einschalten, prescal /64
   ADMUX = channel; // Kanal wählen
   //ADMUX |= (1<<REFS1) | (1<<REFS0); // + interne 2,56V-Referenz
   ADMUX |= (0<<REFS1) | (1<<REFS0); // + 5V-Referenz
   ADCSRA |= (1<<ADSC); // Konvertierung starten
   while(ADCSRA & (1<<ADSC)); // warten bis Wandlung abgeschlossen

   result= ADC; // Ergebnis zwischspeichern

   ADCSRA &= ~(1<<ADEN); // ADC ausschalten

   return(result); // Ergebnis abliefern
}



/***************************Hauptprogramm***************************/
int main (void)
{

   DDRD = 0xFF;
   PORTA = 0b00001111;
   uint16_t result0 = 0;
   uint16_t result1 = 0;
   uint16_t result2 = 0;
   uint16_t result3 = 0;
   servo_init();
   sei();

while (1)
{
servopos0 = 90;
result0= readADC(4);
result1= readADC(5);
result2= readADC(6);
result3= readADC(7);
_delay_ms(200);

if(result0 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}


if(result1 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}


if(result2 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}





servopos0 = 60;
result0= readADC(4);
result1= readADC(5);
result2= readADC(6);
result3= readADC(7);
_delay_ms(200);

if(result0 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}


if(result1 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}


if(result2 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}




servopos0 = 150;
result0= readADC(4);
result1= readADC(5);
result2= readADC(6);
result3= readADC(7);
_delay_ms(200);

if(result0 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}


if(result1 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}


if(result2 >=200)
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA0) | (1<<PA1) | (1<<PA2) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA2));
PORTA &=~ ((1<<PA1) | (1<<PA3));
_delay_ms (100);
PORTA |= ((1<<PA0) | (1<<PA1));
_delay_ms(100);
}
else
{
PORTD |= (1<<PD5);
PORTA |= ((1<<PA1) | (1<<PA3));
PORTA &=~ ((1<<PA0) | (1<<PA2));
}



}
}


//////////

/*

Servopos:   Mitte = 90    
			Links = 150
			Rechts = 60


*/

//////////

Hat jmd. eine bessere Idee?


Mfg JeyBee