Re: Pulse Gen

--- In CAD_CAM_EDM_DRO@egroups.com, Jeff Barlow <jeff@b...> wrote:

> Jon,
>
> I sent Mariss a message off list in which I tried to explain this

same

> issue. I suspect he is a bit naive when it comes to PC interfacing.

The

> sad truth is that the PC interrupt system is very flaky, even with
> Linux.
>
> Jeff

Hi,

I'm more than naive, I am actually ignorant when it comes to any high
level programming language or OS.

As I understand it, the problem is one of latency with WIN95/98/2K. I
am also given to understand this latency can be as much as 20 ms.

Is this a worst case time, and am I correct in assuming this would be
a problem with any other WIN PC port, be it serial, USB etc.?

The way around it may be to use a FIFO. The worst case latency time
would set the minimum size of the FIFO.

Mariss