[Coco] CoCoNet status

[Darren A]

I believe bit banger emulation in MESS is restricted to printer output
only.  A quick scan of the MESS source code (devices directory) didn't
reveal anything that would indicate support for emulation of an RS232
pak.  The VCC emulator currently lacks support for these devices as
well.

David Keil's emulator supports the bit banger, but it's not clear to
me if it handles bidirectional I/O, or output only. It also emulates
the RS232 pak at baud rates up to 19200.

Darren

---

On 12/21/08, Torsten Dittel wrote:
>
> I guess you're talking about the following scenario:
>
> [Instead of connecting a real CoCo with CoCoNet-ROM via serial cable
> (CoCo: Bit Banger port) to PC (PC: RS-232 serial port) running CoCoNet
> PC-software], you want to run a CoCo emulator on the PC (with "virtual"
> CoCoNet ROM providing the new commands), and the CoCoNet PC-software on
> the same PC.
>
> Sounds interesting.
>
> However, is there any current CoCo emulator providing bit banger port
> emulation? I'm not aware of any (could be done using bi-directional
> parallel port I/O lines (difficult under Windows XP then) and an
> external MAX232-like circuit, but should be extremely timing critical
> with 115kb/s (I don't think any CoCo emulator's timing is accurate
> enough, even on the fastest PC and with a (hypothtically) interrupt-free
> OS). The emulated "Parallel Port Bit-Banger" would then be connected via
> Null-Modem cable to the same PC's serial port.
>
> Another approach: CoCoNet would support an RS-232-Deluxe PAK (and the
> like, maybe even an ACIA supporting the 115kb/s) too, instead of the
> bit-banger port (would be anyway nice to have CoCoNet-ROM installed on a
> Deluxe-PAK for that purpose, replacing the original ROM). I darkly
> remember, there are CoCo emulators out emulating the Deluxe-PAK by
> routing the PAK's serial I/O to the PC's serial port. Then you could run
> all on the same PC like described above, using either a Null-Modem cable
> connecting  two PC serial ports, or even by a (to be done) virtual
> (cable-less) COM scenario, cross-linking two virtual serial COM ports
> under Windows.
>
>
> Regards,
> Torsten
>
>
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