PWM library help

[size=14][size=12]so did searching , couldn't find looking for.  i want able generate pwm @ duty cycle , frequency.  to create library can call upon during current project , future projects come.  i new here , apologize if asking question guys on daily basis (i hate guys), couldn't find answer.

so goal turn signal wii nunchunck pwm signal, them output motor.  i understand math involved, not sure how package together.
here got:

code: [select]

int pwmpin = 11
int hertz;
int duty;
int timehigh;
int timelow;
int totaltime;

void setup ()
{
 pinmode (pwmpin, output);
}

void loop ()
{
 totaltime = 1000000 / hertz;
 duty = duty / 100;
 timehigh = totaltime * duty;
 timelow = totaltime - timehigh;
 
 digitalwrite (pwmpin, low);
 delaymicroseconds (timelow);
 digitalwrite (pwmpin, high);
 delaymicroseconds (timehigh);
}
 
 

here know wrong.
duty , hertz never assigned anything, therefore no other variables assigned anything.  to fix want numbers inputed in manner:
setpwm (duty, hertz)
that how call upon library.  

so how do that?
i ok if don't want type response , link me somewhere.

also aware variables truncated.  that intentional.  and know need header file, after have working.

thanks,
mike[/size][/size]

i think have bit backwards. setup , loop functions not go in library.

a library defines class instantiated in sketch. @ of libraries available arduino examples of how library structured , used.

if want create library, have constructor , setpwm methods. setpwm method have 2 reference arguments defined store values.

if not make sense you, don't think ready creating libraries.

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