Việc dùng PWM trong pic 16f877a

[anh_gioi]

#include "C:\Documents and Settings\anh gioi\Desktop\dieu xung\dieu xung02.h"
#use fast_io(b)
#byte portb = 0x06
void ccp1(){
int8 a;
setup_timer_2(T2_DIV_BY_1,255,1);
SETUP_CCP1(CCP_PWM);

while(true){
for(a=1;a<1024;a++){
set_pwm1_duty(a);
delay_ms(2);
}
delay_ms(20);
for(a=1023;a>1;a--){
set_pwm1_duty(a);
delay_ms(2);
}}}

void ccp2(void){
int b;

setup_timer_2(T2_DIV_BY_1,255,1);
SETUP_CCP2(CCP_PWM);

while(true){
for(b=1;b<1024;b++){
set_pwm1_duty(b);
delay_ms(2);
}
delay_ms(20);
for(b=1023;b>1;b--){
set_pwm1_duty(b);
delay_ms(2);
}}}
void main(){

void ccp1(void);
void ccp2(void);
set_tris_b(0xff);
while(true){
if(input(pin_b0)==0)
ccp1();
else
ccp2();
}


}

code này có chỗ nào sai vậy anh? em ko cho hiển thi ccp2 được???