[En-Nut-Discussion] Re: [btnode-development] Re: Nut/OS goes Real-Time?

[Ole Reinhardt]

Hi Harald,

> Did you consider the implementation of the separate
> interrupt stack in your thoughts? It had been implemented
> by Oliver Schulz some time ago to allow reliable stack
> usage calculation. I think it is disabled by default,
> but if every driver does its own complete interrupt
> handling, then this feature will become useless.

you'r right... I again did not thought about it. As I just wrote to
Matthias there _must_ be a possibility to run the UART with 400kbps
without loosing any byte. Dr. Harbaum is doing it with his BlueMP3. And
I can't understand why NutOS shall be that slow compared to the BlueMP3.
Of yourse the BlueMP3 does not have a real OS, but pure interrupt
processing should not be that different. At least we don't have that
much critical secations any more, don't we? So I don't havy any more
idea where to search...

I'll try to compare the BlueMP3 UART routines with the one of NutOS
later...

Ole

-- 
kernel concepts    Tel: +49-271-771091-14
Dreisbachstr. 24   Fax: +49-271-771091-19
D-57250 Netphen    E+ : +49-177-7420433
--