I can't get more than 256 steps on PWM

[jruibarroso]

I'm using a 16F73 and i can't get more than 256 steps on duty cicle,
i made this manual counter to "see" where can duty cicle can go and when i get 1 the duty is a 1% and when i get 255 the duty is at 99%. I need a resolution 1024 , can anybody help me to solve this ?

MY CODE :

void main() {

int_count=INTS_PER_SECOND;
set_timer0(0);

setup_ccp1(CCP_PWM);
setup_ccp2(CCP_PWM);

setup_counters( RTCC_INTERNAL, RTCC_DIV_256 | RTCC_8_BIT);
setup_adc_ports(AN0_AN1_AN3);
setup_adc(ADC_CLOCK_INTERNAL);
enable_interrupts(INT_RTCC);
enable_interrupts(GLOBAL);

setup_timer_2(T2_DIV_BY_4,64,1);

lcd_init();
delay_ms(500);

while(1)
{
printf(lcd_putc,"\fCCP1 d.c. %Lu \nCCP2 d.c. %Lu",A,B);

if (input(UP)){(A=A+1);} // Increase duty, 1 step
if (input(DN)){(A=A-1);} // Decrease duty, 1 step
if (input(UP)&&(input(X10))){(A=A+10);} // Increase duty, 10 step
if (input(DN)&&(input(X10))){(A=A-10);} //Decrease duty, 10 step
set_pwm1_duty(A);
set_pwm2_duty(A);

delay_ms(10);
}
}

[Ttelmah]

You don't show how 'A' is defined. It needs to be a _long_ integer, or the PWM, will only give 256 steps.
On top of this, you will need to have timer 2 set as:

setup_timer_2(T2_DIV_BY_1,255,1);

The maximum number of PWM 'steps', is the division value in ths (255) plus one, times 4. To give nearly the same PWM frequency, I have dropped the prescaler to /1.

Best Wishes