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18F452 PWM issue

 
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john_doe01



Joined: 28 Nov 2011
Posts: 1

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18F452 PWM issue
PostPosted: Mon Nov 28, 2011 6:26 am     Reply with quote

Hi
New to the forum.

I'm in my last year of uni, doing a two wheeled balancing robot for my last year project.

Being made to use a PIC18f452.

at the moment I've just started coding and I'm having difficulty setting up the second channel for the PICs PWM output.
The first PWM channel works fine and I'm not sure what I'm missing for the second.

Any help will be appreciated and ill keep updating the projects status.

Basic code below:
Code:

PR2= 0xff;    // Period
T2CON= 0x05;   // Timer 2 on and Prescaler = 4   
CCPR1L= 0x20;   // Dutycycle
CCP1CON= 0x0C; // PWM mode on

CCPR2L= 0x20;   // Dutycycle
CCP2CON= 0x0C; // PWM mode on

TRISC= 0x00;   // port C output (bit 2)
Ttelmah



Joined: 11 Mar 2010
Posts: 19350

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PostPosted: Mon Nov 28, 2011 8:14 am     Reply with quote

Are you using CCS C?. If so, then just use the setup_ccp2 function. If not, then ask on another forum. This forum is if CCS C.

Best Wishes
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