who here works for Garmin Inc?

In article ,
Jonathan Goodish wrote:

Though I'm not Windows fan, I believe that Avidyne and others use
Windows as the foundation for their avionics systems.

I don't believe that Avidyne uses windows in any form for their PFD
or MFD products.

--
Bob Noel
Looking for a sig the
lawyers will hate

In article ,
Bob Noel wrote:
In article ,
Jonathan Goodish wrote:

Though I'm not Windows fan, I believe that Avidyne and others use
Windows as the foundation for their avionics systems.

I don't believe that Avidyne uses windows in any form for their PFD
or MFD products.


If they don't, it must have been a recent change. It has been a poorly
kept secret over the years that the Avidyne systems run a stripped-down
version of Windows. I believe the same is true for the MX20, though I'm
not sure how much for the MX20 Garmin retained in the new GMX200.



JKG

In article ,
Jonathan Goodish wrote:

Though I'm not Windows fan, I believe that Avidyne and others use
Windows as the foundation for their avionics systems.

I don't believe that Avidyne uses windows in any form for their PFD
or MFD products.

If they don't, it must have been a recent change.

It had to be when they went from simply a situational awareness display
to a PFD. No way is any certified PFD going to be running any form
of windows - you simply can't meet DO-178B Level B or Level A objectives
with windows.

It's not proof, but look at avidyne's job openings. The sw jobs want
RTOS and DO-178B experience/knowledge. Zip about windows.


It has been a poorly
kept secret over the years that the Avidyne systems run a stripped-down
version of Windows.

Hardly a secret. What is proprietary is how they got that first box with
windows certified (Level C) in the first place.

--
Bob Noel
Looking for a sig the
lawyers will hate

In article ,
Bob Noel wrote:
It had to be when they went from simply a situational awareness display
to a PFD. No way is any certified PFD going to be running any form
of windows - you simply can't meet DO-178B Level B or Level A objectives
with windows.

It's not proof, but look at avidyne's job openings. The sw jobs want
RTOS and DO-178B experience/knowledge. Zip about windows.

You're right, it's not proof. The standards you reference are
standards, not operating systems.

I'm not an operating system expert, but I don't see why the Windows
kernel couldn't be modified as required to meet whatever standards were
necessary. Companies who have these type of requirements likely have
extensive access to the source code and/or have access to the
appropriate resources at Microsoft. So I don't think it's as impossible
as you contend.


It has been a poorly
kept secret over the years that the Avidyne systems run a stripped-down
version of Windows.

Hardly a secret. What is proprietary is how they got that first box with
windows certified (Level C) in the first place.

I guess that's why I said "poorly kept secret." I don't remember
Avidyne or Apollo advertising that their system used Windows, even
though it was fairly obvious that was the case.




JKG

In article ,
Jonathan Goodish wrote:

I'm not an operating system expert, but I don't see why the Windows
kernel couldn't be modified as required to meet whatever standards were
necessary. Companies who have these type of requirements likely have
extensive access to the source code and/or have access to the
appropriate resources at Microsoft. So I don't think it's as impossible
as you contend.

I'm not an OS expert either, but I considerable experience with the relevant
certification requirements. Windows, like pretty much any COTS OS, would require
so much modification that it would cease to be windows. And I doubt that
microsoft would expose themselves to the potential liability.


Hardly a secret. What is proprietary is how they got that first box with
windows certified (Level C) in the first place.

I guess that's why I said "poorly kept secret." I don't remember
Avidyne or Apollo advertising that their system used Windows, even
though it was fairly obvious that was the case.

iirc, Avidyne did. In any case, the people at Avidyne that I've meet were
open about it being windows-based. They wouldn't say how they achieved
compliance with 178B Level C objectives however.

--
Bob Noel
Looking for a sig the
lawyers will hate