@Dreamora: You're right that my method is not flexible, and the timing can vary a few milliseconds each call. But Robo asked how to call a function, not any potential function, and he did not specify how accurate he needed the timing to be.
My way works and is simple, and there is no reason to use a bulldozer to do a shovel's job. If my way suits him, he can use it. If he needs more flexibility, or doesn't like my method for some reason, then he can choose from other methods that have been posted.
My way works and is simple, and there is no reason to use a bulldozer to do a shovel's job. If my way suits him, he can use it. If he needs more flexibility, or doesn't like my method for some reason, then he can choose from other methods that have been posted.