help for programming enhanced pwm in pic micro controller

hi dear i am beginner of pic programmer i am using pic 16f690 .enhanced pwm half bridge mode .my doubt is how to generate pwm with smooth start from 0-60% duty cycle ..
i am using 8Mhz crystal and varying frequency with fixed duty cycle

give me some sample c code with ccs c complier

the frequency is 35 Khz to 25 khz

plz help me on this

CCS has oodles of documentation on enhanced PWM.... I know this as I was reading through it the other day... It's quite comprehensive. All the routines you ever need are incorporated within the libraries.