Proteus and Keil Cx51 microcontroller simulation (measure pulse width)-EEWORLD

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The width of the pulse appearing on the INT0 pin is tested using the gate bit and displayed by the light-emitting diode in the form of a number of machine cycles.

Circuit Diagram:

[Repost] Proteus and Keil Cx51 MCU simulation (measure pulse width)

U1 source program:

#include
sbit P1_1=P1^1;
void main(void)
{
TMOD=0x02;
EA=1;
ET0=1;
TH0=256-250;
TL0=256-250;
TR0=1;
while( 1);
}
void Time0(void)interrupt 1 using 0
{P1_1=~P1_1;}

U2 source program:

#include
#include
void main(void)
{
TMOD=0x0a;
EA=1;
ET0=0;
TR0=1;
TH0=0;
TL0=0;
while(1)
{
while (INT0==0);
TL0=0;
while(INT0==1);
P1=TL0;
}
}

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