Re: F21c
- Subject: Re: F21c
- From: Penio Penev <penev@xxxxxxx>
- Date: Sun, 8 Jun 1997 14:11:43 -0400 (EDT)
- cc: MISC
- In-Reply-To: <3399FFED.1853@ca.com.au>
On Sat, 7 Jun 1997, Peter Jakacki wrote:
> The timer circuit which interrupts the CPU at programmed intervals is
> the basic building block of embedded systems, it is good to see F21
> with this timer.
It is not necessary, though. It you have a tight enough multitasking
loop, you can guarantee that a certain code will be executed no later than
a certain time it was previously executed. Then you can treat this as a
"clock interrupt". Even more, you can think of it as an "interrupt" in
general -- you can attach whatever I/O polling code you want there.
--
Penio Penev <Penev@pisa.Rockefeller.edu> 1-212-327-7423
