[nos-bbs] CPU consumption change after 4(?) days

[Tim Gorman]

I don't have a multiport card in my linux box but I do have on in the box I 
use to run my Winlink Classic BBS (HF and VHF port + serial port to radio) 
and I have never had a minutes trouble with it. It is a NetMos card with 2 
serial ports and 1 lpt port (I use the extra lpt port to run a PIC 
programmer). 

I have used a USB-to-RS232 adapter with a robot I have that uses an oopic-R 
control board. I program it using my wife's windows XP laptop which doesn't 
have a serial port. It works ok too.

I don't see enough difference between them to have a preference. If the 
programming for USB interfacing is difficult, certainly the multiport card 
would be the  path to take.

tim ab0wr

On Thursday 13 April 2006 23:10, maiko at pcs.mb.ca wrote:
> George wrote :
> > Yes - I am using a USB/RS-232 device ...
>
> I'm concerned about the fact that USB is replacing RS-232. There are
> many applications in the control field, modems, tncs, robotics is a
> big one. Although in all fairness, alot of robotics stuff is now in
> the form of PIC controller boards that are programmed using USB.
>
> Writing USB drivers for JNOS was a thought, but that thought didn't
> last very long :-) There are apparently ALOT of different standards
> to deal with, each USB vendor seems to have an implementation a tiny
> bit different than the others (or so I read). As a result, I can not
> imagine supporting such software - it could be time consuming.
>
> Solution ? How about a multiport serial I/O card ?
>
> I use an older STB 4 port serial card. I think anyone running NOS should
> consider getting a modern multiport serial card, and the price does not
> seem to be that bad. Easy-Sync for example has them for under $30, and
> these are modern units if I am not mistaken with full PCI support, etc.
>
> In my professional opinion, I think one is saved ALOT of headache by
> using true /dev/tty ports, and not using the pseudo tty ports created
> by the USB <-> RS232 converter drivers. Get a multiport I/O card !
>
> What's the cost of a USB <-> RS232 converter ? Would that money
> be better spent getting a MODERN multiport serial I/O card ?
>
> I think so. BUT, it would be nice to hear from others that have some
> real experience with the multiport cards. Please share this with us,
> especially if you have had BAD experiences with them as well. That's
> only fair. It can't all be good of course, but I'm happy with mine.
>
> Maiko
>
>
>
> _______________________________________________
> nos-bbs mailing list
> nos-bbs at lists.tapr.org
> https://lists.tapr.org/cgi-bin/mailman/listinfo/nos-bbs