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Re: AVR GCC Simulator 模擬無中斷?
#3
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x8051你好,目前使用AVR 8-bit Toolchain v3.62,在MPLAB X IDE v6.00和AVR-GCC(v5.4.0)中測試程式可以正常進入中斷函式。 Optimization-Level設定0或1皆可正常進入中斷。

方便的話可以將專案壓縮後上傳由我們協助測試,或嘗試將AVR-GCC設定值Reset再做測試。

發表於: 2022/4/8 15:41
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Re: AVR GCC Simulator 模擬無中斷?
#2
高級會員
高級會員


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反編發現 ISR(TIMER0_COMPA_vect) 被優化不見了
變量已經使用 volatile 況且優化使用 -O0 ,但是仍然無效?

發表於: 2022/4/4 10:20
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AVR GCC Simulator 模擬無中斷?
#1
高級會員
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MPLAB X ID 5.20版本
模擬 ATtiny85 AVR_GCC (v5.4.0)
TCNT0 跑到 125 後,但是中斷程式跳不進去?

#include
#include
volatile uint8_t timer1;
ISR(TIMER0_COMPA_vect)
{
if (timer1) timer1--;
}
int main(void)
{
timer1 = 250;
uint8_t timer2 = 1;

DDRB | = (1 << DDB3 );

TCCR0A = (1 << WGM01);
TCCR0B = (1 << CS01) | (1 << CS00);
OCR0A = 125;
TIMSK = (1 << OCIE0A);
sei();
while (1)
{
if (!timer1)
{
timer1 = 250;
if (!timer2)
{
PORTB ^= (1 << PORTB3);
timer2 = 1;
} else timer2--;
}
}
}

發表於: 2022/4/2 23:56
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