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tien168bn
Joined: 04 Apr 2014
Posts: 7
Location: Viet Nam
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| PWM with 18F4431 |
 Posted: Mon Jun 09, 2014 9:29 pm |
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I have 2 motor. I use PWM with PIC18F4431. but I use Proteus for simulation. It not run. Help me with problem. | Code: | #include "D:\Do line\main.h"
#fuses hs, nowdt, noprotect, nowrt, nolvp, hpol_low
#use delay(clock=20000000)
#byte porta=0xf80
#byte portb=0xf81
#byte portc=0xf82
#byte portd=0xf83
#byte porte=0xf84
/////////////
#use fast_io(a)
#use fast_io(b)
#use fast_io(c)
#use fast_io(d)
#use fast_io(e)
#bit dk0 = portb.5
#bit dk2 = portb.2
#bit start = portd.0
#bit stop = portd.1
#bit cb0 = porta.0
#bit cb1 = porta.1
#bit cb2 = porta.2
#bit cb3 = porta.3
#bit cb4 = porta.4
#bit cb5 = porta.5
int1 flag = 0;
void button(void)
{
if(start == 0 && stop == 1)/// && flag == 0)
{flag = 1;}
if(start == 1 && stop == 0)// && flag == 1)
{flag = 0;}
}
void main()
{
SET_TRIS_A (0xFF);
SET_TRIS_B (0X00);
SET_TRIS_C (0X00);
SET_TRIS_D (0X0F);
SET_TRIS_E (0B111);
SETUP_POWER_PWM_PINS(PWM_ODD_ON,PWM_ODD_ON,PWM_ODD_ON,PWM_ODD_ON);
SETUP_POWER_PWM(PWM_CLOCK_DIV_64|PWM_FREE_RUN,1,0,250,0,1,0); //15kHz--333
SETUP_TIMER_2(T2_DIV_BY_1,255,1);
dk0 = 0;
dk2 = 0;
set_power_pwm0_duty(0);
set_power_pwm2_duty(0);
while(true)
{
button();
if(flag == 1)
{
dk0 = dk2 = 1;
delay_ms(70);
set_power_pwm0_duty(700);
set_power_pwm2_duty(700);
}
if(flag == 0)
{
dk0 = dk2 = 0;
delay_ms(70);
set_power_pwm0_duty(0);
set_power_pwm2_duty(0);
}
}
} |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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tien168bn
Joined: 04 Apr 2014
Posts: 7
Location: Viet Nam
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| Posted: Mon Jun 09, 2014 9:44 pm |
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I use module PWM of 18F4431. but It not run. Have something wrong? This code, in last year, it run with my robot. and now, it not run :(. both simulation and in the circuit |
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tien168bn
Joined: 04 Apr 2014
Posts: 7
Location: Viet Nam
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| Posted: Mon Jun 09, 2014 9:49 pm |
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| The signal in RB5(PWM5) not change.@@ |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Tue Jun 10, 2014 12:36 am |
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| Quote: | | The signal in RB5(PWM5) not change |
The PWM5 signal does not come out on pin RB5. It comes out on pin RB4.
I ran the program in my link (in hardware) and I can see PWM pulses on:
PWM1 - pin 34 - RB1
PWM3 - pin 36 - RB3
PWM5 - pin 37 - RB4
PWM7 - pin 30 - RD7
This is with the 40-pin DIP package of the 18F4431. |
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