Re: [ECOS] common x86 features support

["Simon Johanson" <simon_johanson at hotmail dot com>]

Thanks Andrew,

that's true....but e.g. several hard-realtime OS (not embedded Linux
variants) such as VxWorks include support for all PC-features

My system - from one side controls Real-Time devices (via network and serial
ports, and CAN), from another side interacts with user, stores huge data on
HDD, and allows almost complete PC-like functionality for machine-operator.

Could you please refer to eCos source code - where I can find VGA text mode
driver?
Mabye PC keyboard is supported too?

PS.
I know that one of other famous free RTOS - RTEMS provides support for ATA
and FAT filesystems


----- Original Message -----
From: "Andrew Lunn" <andrew@lunn.ch>
To: "Simon Johanson" <simon_johanson@hotmail.com>
Cc: <ecos-discuss@sources.redhat.com>
Sent: Thursday, July 08, 2004 11:49 AM
Subject: Re: [ECOS] common x86 features support


> On Thu, Jul 08, 2004 at 02:51:59AM +0400, Simon Johanson wrote:
> > Dear ecos-developers...
> >
> > Possibly I've not read whole e-mail-lists to find the right answer to my
> > question, sorry for that, maybe someone could provide references to
previous
> > discussions.
> >
> > I'm looking for eCos running on my X-86 based board...
> >
> > as I understand -
> > 1). there's no chances to get Video support under eCos (even simple
> > VGA-text-mod driver)
>
> Text mode should work as far as i know. Getting graphics working
> should not be too hard. eCos uses the Microwin code for its
> graphics. Im sure there must be a basic VGA driver around somewhere
> you can port to eCos.
>
> > 2). No PC keyboard driver
>
> Again,
>
> > 3). No ATA devices support, I'm not able to run eCos with my FSs on HDD
or
> > Floppy
> > 4). USB support - I'm looking for OHCI driver for Opti82c861 controller
> > (USB1.compliant)
> > Is it possible to get "finger in air" estimation for such USB controller
in
> > eCos. Which  USB-device classes available?
> > 5). No parallel port driver
> > 6). No PS/2 mouse driver
>
> You have quite high requirements. eCos was designed to be used in
> deeply embedded system, and your requirements don't fit what i would
> normally consider a deeply embedded system.
>
> So lets take a step back and look at the system as a whole. What are
> you trying to build? What are the requirements in terms of real time?
> Do you need an RTOS or will an plain OS do? If you don't need an RTOS,
> Linux seems like a much more sensible way to go.
>
>         Andrew
>

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