Re: [hatari-devel] SCC issues (vs. real MegaSTE) mentioned in Atari-forum

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 08/09/2024 à 13:06, Eero Tamminen a écrit :
> Hi,
>
> On 7.9.2024 16.34, Nicolas Pomarède wrote:
> > Le 04/09/2024 à 23:48, Eero Tamminen a écrit :
> > > There are couple of SCC issues mentioned on Atari forum compared to 
> > > how things work on real MegaSTE:
> > > https://www.atari-forum.com/viewtopic.php?p=459561#p459561
> >
> > just to be sure, from what the user is telling, doesn't he refer to 
> > serial port through MFP and not through SCC ?
> >
> > He made some tests in february, but at that time Hatari 2.5 was not 
> > released yet, so it was using the old SCC code.
> >
> > and it's not clear when he says he tried git version, what port did he 
> > try ?
>
> I asked about that, but it may be better for you to ask more detailed 
> questions there, as I'm not really familiar with MFP/SCC or SW using 
> those...

Hi

from his answer I see some code is not present in MFP case as in SCC to 
handle DCD signal.

I'm looking at this to make both code more similar but I see rs232.c is 
using File_Open to open the in/out file associated with the serial port, 
and not using open() directly as in scc.c

Is there any reason for that ? I see File_Open allows to use stderr and 
stdout as a filename but is that really used for rs232 emulation ?

If not, I'd rather replace use of "FILE *" handler by file descriptor 
number (as returned by open() )

Any idea on that ?

Nicolas