Comments on: Generating PWM with PIC Microcontroller using CCP Module

By: Ligo George

Ligo George — Sun, 11 Dec 2022 10:03:25 +0000

In reply to Khairul. Thanks for helping others.

By: Khairul

Khairul — Thu, 03 Nov 2022 20:00:55 +0000

In reply to Virender Kumar. current_duty_1–; => wrong current_duty_1––; => true

By: Virender Kumar

Virender Kumar — Fri, 12 Jan 2018 11:28:00 +0000

HI,
I have programmed the pic16f88 the below program. Pin RA0 & RA1 are connected to 2 push buttons for increment or decrement the Pwm & Pin RB0 is used for ccp1 out & connected to Led . After powering the circuit i can see the pwm on RB0 Led and on scope also but no change happens after pushing 2 push buttons … Can you please help ? Internal Oscillator frequency is set to 8 Mhz.

void main()
{
short current_duty_1 = 16; // initial value for current_duty_1

TRISA = 0xFF; // PORTA as input
TRISB = 0x00; // PORTB as output

PWM1_Init(5000); // Initialize PWM1
PWM1_Start(); // start PWM1

PWM1_Set_Duty(current_duty_1); // Set current duty for PWM1

while (1) // endless loop
{
if (!RA0_bit) // if button on RD0 pressed
{
Delay_ms(40);
current_duty_1++; // increment current_duty_1
PWM1_Set_Duty(current_duty_1); //Change the duty cycle
}

if (!RA1_bit) // button on RD1 pressed
{
Delay_ms(40);
current_duty_1–; // decrement current_duty_1
PWM1_Set_Duty(current_duty_1);
}

Delay_ms(10); // slow down change pace a little
}
}

By: harun kürk

harun kürk — Mon, 18 Dec 2017 16:19:00 +0000

hello sir can we use this code for half bridge mosfet driver

By: Mark Alfeche

Mark Alfeche — Fri, 16 Jun 2017 15:37:00 +0000

Sir our thesis is all about buck-boost converter using pic16f877a..can you help me how to use the pins on that microcontroller so that the switch of our microcontroller is that pic

By: Rolando Aguilera

Rolando Aguilera — Mon, 05 Jun 2017 19:06:00 +0000

Do you know how to generate SPWM with a TI microcontroller?

By: Phunsukh Wangdu

Phunsukh Wangdu — Sat, 08 Apr 2017 12:21:00 +0000

Please help me…i want to control light brightness by using PIC Micro
controller with button (PWM)..I found this in your site. Why my LED
always blinking…in oscillation PWM working. Please give me a proper
solution or give me a source code for light brightness control PIC with
push buttons

By: nj

nj — Sat, 01 Apr 2017 14:21:00 +0000

in which software i do the programming

By: eee angels

eee angels — Wed, 01 Mar 2017 09:47:00 +0000

how to generate 3 different delayed pulses to switch on 3 mosfets in micro c?

By: Umair Rehman

Umair Rehman — Wed, 22 Feb 2017 21:41:00 +0000

Do anybody have a code for PLECS [C-subscript] for PWM generation of three phase induction motor?