From: VanBaren, Gerald (AGRE) <"VanBaren,>
Date: Mon, 8 Mar 2004 05:13:13 -0700

Hi Fred,

Correction: NASA uses WindRiver's vxWorks. VRTX was a Hunter & Ready product that no longer exists (I forgot who bought them out and let it die away). Incidentally, pSOS effectively no longer exists either: WindRiver bought it and has phased it out.

gvb


> -----Original Message-----
> From: rockbox-bounces_at_cool.haxx.se
> [mailto:rockbox-bounces_at_cool.haxx.se]On Behalf Of Fred Maxwell
> Sent: Friday, March 05, 2004 4:56 PM
> To: Rockbox development
> Subject: Re: Another possible candidate for expansion of Rockbox?
>
>
> eD\/ARd0 F/\KEn^M3 wrote:
>
> > I believe it's ALWAYS better to have an open OS.
>
> After 20+ years in the embedded systems arena, I'll have to disagree.
> The finest real-time OSs available are proprietary, closed source
> products. They weren't developed by taking a desktop or
> server OS and
> stripping stuff out. They were not designed to maintain
> compatability
> with old Unix apps. They were purpose-built to be small, fast, and
> bulletproof. If you want to know the worst-case interrupt latency in
> clock cycles, it's probably already been published. Try finding that
> for ucLinux.
>
> When building something, you want responsible vendors who
> have something
> to lose. If a failure of VRTX causes NASA to lose a satellite, it's
> going to hurt the people who make VRTX -- in a major, ugly
> way. If some
> piece of Linux code written by a 19 year old in the Ukraine
> fails, what
> does he have to lose?
>
> All things being equal, and open OS is the better choice, but
> things are
> seldom equal.
>
> Regards,
> Fred Maxwell
>
>
>
> _______________________________________________
> http://cool.haxx.se/mailman/listinfo/rockbox
>



******************************************
The information contained in, or attached to, this e-mail, may contain confidential information and is intended solely for the use of the individual or entity to whom they are addressed and may be subject to legal privilege. If you have received this e-mail in error you should notify the sender immediately by reply e-mail, delete the message from your system and notify your system manager. Please do not copy it for any purpose, or disclose its contents to any other person. The views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of the company. The recipient should check this e-mail and any attachments for the presence of viruses. The company accepts no liability for any damage caused, directly or indirectly, by any virus transmitted in this email.
******************************************
_______________________________________________
http://cool.haxx.se/mailman/listinfo/rockbox
Received on 2004-03-08