用CodeWizardAVR编译attiny13A和attiny85，INT0死活不能用
如题，代码只是一个测试INT0的最小程序，请解决过的朋友帮忙给看一下，这是源码/*****************************************************
This program was produced by the
CodeWizardAVR V2.05.1b Evaluation
Automatic Program Generator
?Copyright 1998-2011 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project :
Version :
Date : 2014-5-8
Author: Freeware, for evaluation and non-commercial use only
Company :
Comments:
Chip type : ATtiny85
AVR Core Clock frequency: 8.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 128
*****************************************************/
#include <tiny85.h>
#include<delay.h>
// Pin change interrupt service routine
//interrupt void pin_change_isr(void)
interrupt void ext_int0_isr(void)
{
// Place your code here
PORTB&=0xfe;
}
// Declare your global variables here
void main(void)
{
// Declare your local variables here
// Crystal Oscillator division factor: 1
#pragma optsize-
CLKPR=0x80;
CLKPR=0x00;
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif
// Input/Output Ports initialization
// Port B initialization
// Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State5=1 State4=1 State3=1 State2=1 State1=1 State0=1
//PORTB=0x3F;
//DDRB=0x3F;
DDRB = 0x3F; //将所有I/O口均初始化为输出状态
PORTB = 0x3F;
DDRB&=0XFD; //PCINT1设为输入
PORTB=0X3F;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0A output: Disconnected
// OC0B output: Disconnected
TCCR0A=0x00;
TCCR0B=0x00;
TCNT0=0x00;
OCR0A=0x00;
OCR0B=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFF
// OC1A output: Disconnected
// OC1B output: Disconnected
// Timer1 Overflow Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
PLLCSR=0x00;
TCCR1=0x00;
GTCCR=0x00;
TCNT1=0x00;
OCR1A=0x00;
OCR1B=0x00;
OCR1C=0x00;
// External Interrupt(s) initialization
// INT0: Off
// Interrupt on any change on pins PCINT0-5: On
//GIMSK=0x20;
//MCUCR=0x00;
//PCMSK=0x02;
//GIFR=0x20;
GIMSK=0x40;
MCUCR=0x00;
GIFR=0x40;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// Universal Serial Interface initialization
// Mode: Disabled
// Clock source: Register & Counter=no clk.
// USI Counter Overflow Interrupt: Off
USICR=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
ACSR=0x80;
ADCSRB=0x00;
DIDR0=0x00;
// ADC initialization
// ADC disabled
ADCSRA=0x00;
// Global enable interrupts
#asm("sei")
while (1)
{
// Place your code here
#asm("sei") // 开放全局中断 while(1);
}
}
INT0没有响应，仿真也是如此，有哪位朋友知道原因，请告知一下！ 本帖最后由 biying 于 2014-5-24 01:16 编辑
根据马老师的指点，我重新新建了工程，修改了程序后，INT0终于有反应了。我发现个现像，当设置为任意电平触发时，快速按下再放开按键，等再次开中断时，依然会再执行中断程序一次，似乎像是有记忆能力一样，也就是说第二次开中断时，会先对比上一次中断时的电平状态。
但是ATTINY85依然不能用INT0
/*****************************************************
This program was produced by the
CodeWizardAVR V2.05.1b Evaluation
Automatic Program Generator
?Copyright 1998-2011 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project :
Version :
Date : 2014-5-23
Author: Freeware, for evaluation and non-commercial use only
Company :
Comments: PB3和PB4接LED灯，PB1为INT0接按键
Chip type : ATtiny13A
AVR Core Clock frequency: 9.600000 MHz
Memory model : Tiny
External RAM size : 0
Data Stack size : 16
*****************************************************/
#include <tiny13a.h>
#include<delay.h>
// External Interrupt 0 service routine
interrupt void ext_int0_isr(void)
{
// Place your code here
GIMSK=0x00; //禁用INT0中断，等合适的时候再打开
GIFR=0x40;
PORTB ^= 1<<4;
}
// Declare your global variables here
void main(void)
{
// Declare your local variables here
// Crystal Oscillator division factor: 1
#pragma optsize-
CLKPR=0x80;
CLKPR=0x00;
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif
// Input/Output Ports initialization
// Port B initialization
// Func5=In Func4=Out Func3=Out Func2=Out Func1=In Func0=Out
// State5=P State4=1 State3=1 State2=1 State1=P State0=1
PORTB=0x3F;
DDRB=0x1D;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0A output: Disconnected
// OC0B output: Disconnected
TCCR0A=0x00;
TCCR0B=0x00;
TCNT0=0x00;
OCR0A=0x00;
OCR0B=0x00;
// External Interrupt(s) initialization
// INT0: On
// INT0 Mode: Low level
// Interrupt on any change on pins PCINT0-5: Off
GIMSK=0x40;
MCUCR=0x01;
GIFR=0x40;
// Timer/Counter 0 Interrupt(s) initialization
TIMSK0=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
ACSR=0x80;
ADCSRB=0x00;
DIDR0=0x00;
// ADC initialization
// ADC disabled
ADCSRA=0x00;
// Global enable interrupts
#asm("sei")
while (1)
{
// Place your code here
delay_ms(4000);
PORTB ^= 1<<3;
GIMSK=0x40;
}
}
看下ATtiny85和ATtiny13A的寄存器名字是否一样～～～～～ xinhoujue 发表于 2014-5-27 18:06
看下ATtiny85和ATtiny13A的寄存器名字是否一样～～～～～
谢谢提醒，原来TINY13A的INT0是PB１，而TINY85的INT0是PB2，原来看的数据手册是中文的TINY13A，误以为同一系列应该是一样的，就忽略了TINY85的引脚定义，再次感谢你的提醒！
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