Timer

good evening to everybody

Sorry for my english , i'm italian

I'm a Plc-Pc programmer , and now i start this new adventure

with fpga .I order , and waiting too , a stratix2 dev. board.

In the meantime , i my free time , a started to download and study

different .pdf files from Altera , about Nios II , Quartus II , and else .

I want to ask if is possible create a vhdl file , describeing a component Timer

;this component will accept these parameters :

-start

-stop

-Preset

Like using timer in plc , TON and TOF timer.

In his hw it elaborate every 100 ms a counter if the start-bit is true ,and when

the the counter il >= then Preset it return Done .

In Nios II ide i want to use like this

IF (mycondition=true)

{

Timer.start=true;

Timer.Preset=1000; // 1 Sec

}

else

{

Timer.stop=true;

Timer.start=false;

}

...........................// other logical

IF (Timer.done=true)

{

//.......excute something

}

When i test done my Timer , i can to use a lot of this component .

It's possible make this using SOPC?

i suppose "of course" , but how ?

Regards and thanks

Walter