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ATmega16 搭配 MPLAB X IDE V5.30 又發生無法模擬中斷事件
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高級會員
 
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MPLAB X IDE V5.30
之前 ATtiny85 無法中斷,更新 V5.30 版之後就正常. 這次 ATmega16 搭配 MPLAB X IDE V5.30 又發生無法模擬中斷事件.. MPLAB X IDE V5.30 之後又無法使用 32bit MPASM Compiler,所以不想升級了. #define F_CPU 1000000UL #include #include #include #include volatile unsigned char porta; void initialize_cube (void) { /* Frame buffer interrupt */ TCNT2 = 0x00; /* Initial counter value 0 */ TIMSK |= (1 << OCIE2); /* Enable CTC interrupt */ /* Every 1024th cpu cycle, a counter is incremented. * Every time that counter reaches 5, it is reset to 0 * and the interrupt routine is executed. * 1000000/1024/5 = 195 hz refresh * There are 5 layers to update.. * 195 hz / 5 layers = 39 FPS */ OCR2 = 50; /* Interrupt if counter hold value 5 */ TCCR2 = 0x02; /* Prescaler set to 1024 */ TCCR2 |= (1 << WGM01); /* Clear Timer on Compare Match (CTC) mode */ /* Set data direction on all ports to output */ DDRA = 0xFF; /* Data direction PORTA to output */ /* Enable interrupts */ sei(); } ISR(TIMER2_COMP_vect) { porta++; PORTA = porta; } int main (void) { initialize_cube(); /* Set timers, interrupts, I/O ports */ while(1) { __asm__("nop"); __asm__("nop"); __asm__("nop"); __asm__("nop"); } }
發表於: 2022/5/12 0:32
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