[英]AVR proteus delay not working
I have used an AVR ATMEGA16 block in Proteus and programmed it this way. 我在Proteus中使用了AVR ATMEGA16模块,并以此方式对其进行了编程。 Some other simple codes work fine.
其他一些简单的代码也可以正常工作。 However I do not understand what is wrong with the delay function.
但是我不明白延迟功能有什么问题。 The LED is always off.
LED始终熄灭。 What is wrong?
怎么了?
My Proteus connection is: 我的Proteus连接是:
http://i.stack.imgur.com/VGNYc.png http://i.stack.imgur.com/VGNYc.png
/*****************************************************
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 : 3/8/2015
Author :
Company :
Comments:
Chip type : ATmega16
Program type : Application
AVR Core Clock frequency: 16.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
*****************************************************/
#include <mega16.h>
#include <util/delay.h>
// Declare your global variables here
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A 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
PORTA=0x00;
DDRA=0x00;
// Port B 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
PORTB=0x00;
DDRB=0x00;
// Port C 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
PORTC=0x00;
DDRC=0x00;
// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=Out
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=1
PORTD=0x01;
DDRD=0x01;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=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
// INT2: Off
MCUCR=0x00;
MCUCSR=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 disabled
ADCSRA=0x00;
// SPI initialization
// SPI disabled
SPCR=0x00;
// TWI initialization
// TWI disabled
TWCR=0x00;
while (1)
{
PORTD.0=1;
_delay_ms(500);
PORTD.0=0;
_delay_ms(500);
}
}// end of program
Solution: 解:
It is because of your Atmega Clock. 这是因为您的Atmega Clock。 You set your clock on your code at 16 MHz.
您将时钟设置为16 MHz。 But proteus initial properties set it at 1 MHz.
但是变形蛋白的初始特性将其设置为1 MHz。 So Set your clock of your code at 1 MHz.
因此,将您的代码时钟设置为1 MHz。
Notes: 笔记:
1.As i know Atmega initial clock can not be more than 8 MHz. 1.据我所知,Atmega的初始时钟不能超过8 MHz。
2.If you want to use 16 MHz clock, you should use an external clock. 2.如果要使用16 MHz时钟,则应使用外部时钟。
3.If your clock is not 1 MHz (on your code), you should change proteus Atmega clock by this way: On Proteus: Right click on the Atmega -> Edit Properties -> CKSEL FUSES (Set it's clock) 3.如果您的时钟不是1 MHz(在您的代码上),则应通过以下方式更改proteus Atmega时钟:在Proteus上:右键单击Atmega-> Edit Properties-> CKSEL FUSES(设置它的时钟)
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