Use PWM of PIC 16F887 to control 1 led

Requirements: Use PWM of PIC 16F887 to control 1 led. Let the frequency of the quartz capacitor be 20MHz. Given a PWM period of 0.8ms. Let's calculate the parameters and write a program to control the led light with level 1 equal to 1 tenth of the maximum brightness. 

 Circuit diagram on Proteus simulation software:

Figure 1. The control circuit changes the light intensity of the lamp using PWM

• Main program:

File: main.c

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#INCLUDE <16F887.H>

#FUSES NOWDT,PUT,HS,NOPROTECT,NOLVP

#USE DELAY(CLOCK=20M)

UNSIGNED INT16 BIEN_TOC_DO;

VOID MAIN()

{

   SET_TRIS_C(0X00);

   SETUP_CCP1(CCP_PWM);

   SETUP_TIMER_2(T2_DIV_BY_16,249,1);

   BIEN_TOC_DO=500;

   SET_PWM1_DUTY(BIEN_TOC_DO);

   WHILE(TRUE){}

}

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Link download: https://drive.google.com/file/d/1bTFkDOBbnVMOfTfktRKmekfiYAq1Ipf6/view