[proteus simulation] timer 1 external counting interrupt

【Proteus Simulation 】 Timer 1 External count interrupt

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• Proteus Simulation
  

Program code

/* Main.c file generated by New Project wizard * * Created:  Monday  6 month  27 2022 * Processor: AT89C51 * Compiler: Keil for 8051 */

#include<reg52.h> // Include header file , In general, there is no need to change , The header file contains the definition of special function registers 

sbit LED=P1^2;    // Definition LED port