Hey,
Trying to get some PWM code working. I really don't know much about how this works and just followed the steps in the PIC16f887 datasheet. I'm just trying to run a motor in one direction for now.
Thanks
Trying to get some PWM code working. I really don't know much about how this works and just followed the steps in the PIC16f887 datasheet. I'm just trying to run a motor in one direction for now.
Thanks
Rich (BB code):
//Stephen Ehle
//PWM programming
#define _LEGACY_HEADERS
#include <htc.h>
__CONFIG(INTIO & WDTDIS & PWRTDIS & BORDIS & BORDIS & LVPDIS & DEBUGEN & DUNPROTECT & UNPROTECT);
volatile unsigned int d_cycle=800;
volatile char pwm_init=0;
void main( void ){
TRISC=0xFF;
TRISD=0xFF;
PR2=0xFF;
PEIE=1;
GIE=1;
CCP1CON = 0b11001100;
CCPR1L = d_cycle>>2;
CCP1CON = CCP1CON | ( ( d_cycle & 0b00000011 ) << 4 );
TMR2IF=0;
T2CON=0b00000100;
while(pwm_init != 1);
TRISC=0x00;
TRISD=0x00;
while(1);
}
void interrupt isr( void ){
if( TMR2IF ){
pwm_init = 1;
}
}
