Re: [hatari-devel] SCC-B support

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Am Tue, 1 Jan 2019 13:19:40 +0200
schrieb Eero Tamminen <oak@xxxxxxxxxxxxxx>:

> Hi,
> 
> Le 30/12/2018 à 20:07, Christian Zietz a écrit :
>  > Eero Tamminen schrieb:  
>  >> If I've understood correctly:
>  >> * ST / MegaST / STE: 1 MFP serial port
>  >> * MegaSTE & TT: 1 MFP, 2x SCC serial ports  
>  >
>  > Actually: Real TT: 2 MFP, 2 SCC serial ports, although one of the
>  > SCC ports is shared with the so-called "LAN" port of the TT.
>  > However, the second MFP of the TT isn't emulated by Hatari.  
> 
> 
> On 1/1/19 10:40 AM, Thomas Huth wrote:> Am Sun, 30 Dec 2018 20:43:10
> +0200
> > schrieb Eero Tamminen <oak@xxxxxxxxxxxxxx>:  
> >> * Falcon: 2 SCC serial ports >  
> > As far as I know, the Falcon has only one serial port. SCC-A is
> > hard-wired to the "LAN" connector here (while it can be switched to
> > a normal serial connector for the TT and Mega-STE). The code that
> > I've copied from Aranym does not fully support the SCC-A channel
> > yet, so not sure whether it makes sense to provide a "--scc-a"
> > parameter already... Let's focus on SCC-B for now which is way more
> > important, since it is the only serial port of the Falcon.  
> 
> In that case it could be more user-friendly if the file options
> would talk about ports instead of Atari internal chips.
> 
> I.e. with these:
> 
>    --rs232-in <file>  Enable serial port, use <file> as input device
>    --rs232-out <file> Enable serial port, use <file> as output device
> 
> being wired on Falcon to SCC-B, and to MFP-1 everywhere else.

So when you have a program that uses the SCC, you have to adjust the
options depending on the machine type that you are using? ... I don't
think that I'll like that idea.

> With MegaSTE/TT eventually supporting additionally:
> 
> --rs232-2-in
> --rs232-2-out
> --rs232-3-in
> --rs232-3-out
> --rs232-4-in
> --rs232-5-out
> 
> And those being mapped to MFP-2, SCC-A, SCC-B as explained
> in the documentation.
> 
> Opinions?

Sounds also rather confusing to me, and this will make the code a lot
uglier, so I'd rather not do this.

 Thomas



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