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2018-05-13 17:25:41 +08:00
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commit be65a42cb8
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75
Interrupt_1.c Executable file
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// Timer 0 take as interrupt
// Timer 1 take as delay
#include <reg51.h>
// <20>ŧi<C5A7><69><EFBFBD>ɨ禡
void delay10ms(void);
unsigned int timer0_counter = 150;
void main(void){
//<2F>}<7D><> Timer0 <20>M Timer1
TMOD = 0x11;
//interrupt control
TL0 = (65536 - 9216) % 256;
TH0 = (65536 - 9216) / 256;
TF0 = 0;
TR0 = 1; //<2F>}<7D>ҭp<D2AD>ɾ<EFBFBD> timer0
ET0 = 1; //<2F>}<7D><> TF0 <20><><EFBFBD><EFBFBD><EFBFBD>_<EFBFBD>Ҳն}<7D><>
EA = 1; //<2F>}<7D>Ҥ<EFBFBD><D2A4>_<EFBFBD>Ҳ<EFBFBD><D2B2>`<60>}<7D><>
delay10ms();
while(1){
// do LED move up to down per 1.5 sec
// using Timer 1 Mode 1 to generate 10ms delay
}
}
void delay10ms(void){
//<2F>]<5D>w<EFBFBD><77><EFBFBD>l<EFBFBD><6C>
TF1 = 0;
TR1 = 0;
TL1 = (65536-9216) % 256;
TH1 = (65536-9216) / 256;
//<2F>}<7D>ҭp<D2AD>ɾ<EFBFBD> timer1
TR1 = 1;
//<2F><> TF1 <20>S<EFBFBD><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
while(TF1 == 0);
//<2F><><EFBFBD><EFBFBD><EFBFBD>p<EFBFBD>ɾ<EFBFBD>
TR1 = 0;
//<2F>N TF1 <20>k<EFBFBD>s
TF1 = 0;
}
// timer0 <20>b<EFBFBD>p<EFBFBD>ɨ쪺<C9A8>ɭ<EFBFBD>(TF0 = 1)<29>|<7C>I<EFBFBD>s<EFBFBD><73><EFBFBD><EFBFBD><EFBFBD>_<EFBFBD>ƨ禡
void my_timer0(void) interrupt 1 {
//<2F>]<5D>w<EFBFBD><77><EFBFBD>l<EFBFBD><6C>
TL0 = (65536 - 9216) % 256;
TH0 = (65536 - 9216) / 256;
TF0 = 0;
// timer0_counter <20>@<40><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
timer0_counter--;
//<2F><> timer0_counter <20><> 0 <20>ɡA<C9A1><41><EFBFBD>@<40>C<EFBFBD>q<EFBFBD><71><EFBFBD>ܾ<EFBFBD>
if (timer0_counter == 0){
// <20><><EFBFBD>@<40>C<EFBFBD>q<EFBFBD><71><EFBFBD>ܾ<EFBFBD>
//<2F>N timer0_counter <20><><EFBFBD>ȳ]<5D>^ 150
timer0_counter = 150;
}
}