سلام دوستان.من تازه کار با میکرو رو شروع کردم.یه برنامه نوشتم که ولتاژ مثلثی ورودی رو بخونه و شیب رو پیدا کنه و به صورت باینری شیب رو در 10 میلی ثانیه بده.تقریبا درس کار میکنه ولی من میخوام حداکثر شیب رو نشون بده و با عوض شدن نمودار و کاهش شیب عدد عوض نشه ولی با کاهش شیب عدد کاهش پیدا میکنه.عیبشو نمیتونم پیدا کنم.اگه کمکم کنین ممنون میشم. :question:
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This program was produced by the CodeWizardAVR V2.05.3 Standard Automatic Program Generator © Copyright 1998-2011 Pavel Haiduc, HP InfoTech s.r.l. http://www.hpinfotech.com Project : Version : Date : 9/2/2014 Author : WWW.PARANDCO.COM Company : PARAND Comments: Chip type : ATmega8 Program type : Application AVR Core Clock frequency: 8.000000 MHz Memory model : Small External RAM size : 0 Data Stack size : 256 *****************************************************/ #include <mega8.h> #include <delay.h> #include <math.h> #define ADC_VREF_TYPE 0x60 // Read the 8 most significant bits // of the AD conversion result unsigned char read_adc(unsigned char adc_input) { ADMUX=adc_input | (ADC_VREF_TYPE & 0xff); // Delay needed for the stabilization of the ADC input voltage delay_us(10); // Start the AD conversion ADCSRA|=0x40; // Wait for the AD conversion to complete while ((ADCSRA & 0x10)==0); ADCSRA|=0x10; return ADCH; } // Declare your global variables here void main(void) {float adc_1; float adc_2,s0,s1,s3; int v1,v2,s=0,s2,s4; // Declare your local variables here // Input/Output Ports initialization // Port B initialization // Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out // State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0 PORTB=0x00; DDRB=0xFF; // Port C initialization // Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTC=0x00; DDRC=0x00; // Port D initialization // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTD=0x00; DDRD=0x00; // Timer/Counter 0 initialization // Clock source: System Clock // Clock value: Timer 0 Stopped TCCR0=0x00; TCNT0=0x00; // Timer/Counter 1 initialization // Clock source: System Clock // Clock value: Timer1 Stopped // Mode: Normal top=0xFFFF // OC1A output: Discon. // OC1B output: Discon. // 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=0x00; TCCR1B=0x00; 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: Timer2 Stopped // Mode: Normal top=0xFF // OC2 output: Disconnected ASSR=0x00; TCCR2=0x00; TCNT2=0x00; OCR2=0x00; // External Interrupt(s) initialization // INT0: Off // INT1: Off MCUCR=0x00; // Timer(s)/Counter(s) Interrupt(s) initialization TIMSK=0x00; // USART initialization // USART disabled UCSRB=0x00; // Analog Comparator initialization // Analog Comparator: Off // Analog Comparator Input Capture by Timer/Counter 1: Off ACSR=0x80; SFIOR=0x00; // ADC initialization // ADC Clock frequency: 125.000 kHz // ADC Voltage Reference: AVCC pin // Only the 8 most significant bits of // the AD conversion result are used ADMUX=ADC_VREF_TYPE & 0xff; ADCSRA=0x86; // SPI initialization // SPI disabled SPCR=0x00; // TWI initialization // TWI disabled TWCR=0x00; while (1) { adc_1=read_adc(0); v1=adc_1*0.01953; delay_us(1250); adc_2=read_adc(0); v2=adc_2*0.01953; s0=(v2-v1); s3 = Math.Round(s0, 2, MidpointRounding.ToEven); s4=s3/0.01; if(s4>s) { s=s4; } PORTB=s; } }
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