نوسان نور دیمر "کدویژن"

4152

تاریخ عضویت: ۱۳۹۵/۰۸/۰۷
پست: 2
تشکر: 1

۱۹:۳۶ ۱۳۹۵/۰۸/۰۷

سلام
یه دیمر با mega8m بستم برنامه .
وقتی شروع به کم شدن نور لامپ میکنه لامپ نورش نوسان پیدا میکنه به نظرتون مشکل از کجاست ؟

[FONT=Yekan]#include <mega8.h>[/FONT]#include <delay.h>

// External Interrupt 0 service routine

interrupt [EXT_INT0] void ext_int0_isr(void)

{TCNT2=0x64;}





// Timer2 overflow interrupt service routine

interrupt [TIM2_OVF] void timer2_ovf_isr(void)

{TCNT2=0x64;}





void main(void)

{

// Declare your local variables here





// Input/Output Ports initialization

// Port B initialization

// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=Out Bit2=In Bit1=In Bit0=In 

DDRB=(0<<DDB7) | (0<<DDB6) | (0<<DDB5) | (0<<DDB4) | (1<<DDB3) | (0<<DDB2) | (0<<DDB1) | (0<<DDB0);

// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=0 Bit2=T Bit1=T Bit0=T 

PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (0<<PORTB1) | (0<<PORTB0);





// Port C initialization

// Function: Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 

DDRC=(0<<DDC6) | (0<<DDC5) | (0<<DDC4) | (0<<DDC3) | (0<<DDC2) | (0<<DDC1) | (0<<DDC0);

// State: Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 

PORTC=(0<<PORTC6) | (0<<PORTC5) | (0<<PORTC4) | (0<<PORTC3) | (0<<PORTC2) | (0<<PORTC1) | (0<<PORTC0);





// Port D initialization

// Function: Bit7=In Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=In 

DDRD=(0<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (0<<DDD3) | (0<<DDD2) | (0<<DDD1) | (0<<DDD0);

// State: Bit7=T Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=T Bit0=T 

PORTD=(0<<PORTD7) | (0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (0<<PORTD3) | (0<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);





// Timer/Counter 0 initialization

// Clock source: System Clock

// Clock value: Timer 0 Stopped

TCCR0=(0<<CS02) | (0<<CS01) | (0<<CS00);

TCNT0=0x00;





// Timer/Counter 1 initialization

// Clock source: System Clock

// Clock value: Timer1 Stopped

// Mode: Normal top=0xFFFF

// OC1A output: Disconnected

// OC1B output: Disconnected

// Noise Canceler: Off

// Input Capture on Falling Edge

// Timer1 Overflow Interrupt: Off

// Input Capture Interrupt: Off

// Compare A Match Interrupt: Off

// Compare B Match Interrupt: Off

TCCR1A=(0<<COM1A1) | (0<<COM1A0) | (0<<COM1B1) | (0<<COM1B0) | (0<<WGM11) | (0<<WGM10);

TCCR1B=(0<<ICNC1) | (0<<ICES1) | (0<<WGM13) | (0<<WGM12) | (0<<CS12) | (0<<CS11) | (0<<CS10);

TCNT1H=0x00;

TCNT1L=0x00;

ICR1H=0x00;

ICR1L=0x00;

OCR1AH=0x00;

OCR1AL=0x00;

OCR1BH=0x00;

OCR1BL=0x00;





// Timer/Counter 2 initialization

// Clock source: System Clock

// Clock value: 15.625 kHz

// Mode: Fast PWM top=0xFF

// OC2 output: Non-Inverted PWM

// Timer Period: 16.384 ms

// Output Pulse(s):

// OC2 Period: 16.384 ms Width: 0 us

ASSR=0<<AS2;

TCCR2=(1<<PWM2) | (1<<COM21) | (0<<COM20) | (1<<CTC2) | (1<<CS22) | (0<<CS21) | (0<<CS20);

TCNT2=0x00;

OCR2=100;





// Timer(s)/Counter(s) Interrupt(s) initialization

TIMSK=(0<<OCIE2) | (1<<TOIE2) | (0<<TICIE1) | (0<<OCIE1A) | (0<<OCIE1B) | (0<<TOIE1) | (0<<TOIE0);





// External Interrupt(s) initialization

// INT0: On

// INT0 Mode: Rising Edge

// INT1: Off

GICR|=(0<<INT1) | (1<<INT0);

MCUCR=(0<<ISC11) | (0<<ISC10) | (1<<ISC01) | (1<<ISC00);

GIFR=(0<<INTF1) | (1<<INTF0);





// USART initialization

// USART disabled

UCSRB=(0<<RXCIE) | (0<<TXCIE) | (0<<UDRIE) | (0<<RXEN) | (0<<TXEN) | (0<<UCSZ2) | (0<<RXB8) | (0<<TXB8);





// Analog Comparator initialization

// Analog Comparator: Off

// The Analog Comparator's positive input is

// connected to the AIN0 pin

// The Analog Comparator's negative input is

// connected to the AIN1 pin

ACSR=(1<<ACD) | (0<<ACBG) | (0<<ACO) | (0<<ACI) | (0<<ACIE) | (0<<ACIC) | (0<<ACIS1) | (0<<ACIS0);

SFIOR=(0<<ACME);





// ADC initialization

// ADC disabled

ADCSRA=(0<<ADEN) | (0<<ADSC) | (0<<ADFR) | (0<<ADIF) | (0<<ADIE) | (0<<ADPS2) | (0<<ADPS1) | (0<<ADPS0);





// SPI initialization

// SPI disabled

SPCR=(0<<SPIE) | (0<<SPE) | (0<<DORD) | (0<<MSTR) | (0<<CPOL) | (0<<CPHA) | (0<<SPR1) | (0<<SPR0);





// TWI initialization

// TWI disabled

TWCR=(0<<TWEA) | (0<<TWSTA) | (0<<TWSTO) | (0<<TWEN) | (0<<TWIE);





// Global enable interrupts

#asm("sei")

// if(OCR2>=255) light is low

//if(OCR2<=255)light is high

while (1)

      {                      

        if(TCNT2==0x00)TCNT2=0x64;

        OCR2++;      

        if(OCR2>=253)OCR2=100;

        delay_ms(250);

      }

[FONT=Yekan]}[/FONT]