[Coco] Dragon & Drivewire

[Aaron Wolfe]

The new 4.3.0 version has an option for this, untested...  (if this
works, I'll add Dragon to the setup wizard with it preset, etc).

For now, to enable:

In the Config menu, choose "Configuration Editor".

Along the top of the editor, toggle "Device" and "Show Advanced Items".

Look for "ProtocolXORInputBits".  Toggle to true.

Click "Write to Server" so the config is sent to the server.

You'll have to then either Choose "Restart Instance Device" from the
config menu or just restart DriveWire before it takes effect.  I'll
make that smoother once we have it working correctly.

-Aaron


On Sun, Oct 21, 2012 at 12:22 PM, Ken H. <dragon.atv at gmail.com> wrote:
> Aaron,
> I now have the hardware part of the Dragon Driverwire adapter ready and
> it's time to start testing.
>
> The max232 circuit takes care of the signal level shifting.
>
> I think that all we need the Drivewire server to do is to invert (xor) the
> data bits coming from the Dragon to the PC.
> Outgoing data from the PC to the Dragon should remain intact.
>
> If you could build a test version that takes care of this inversion I'd
> like to give it a try.
>
> Thanks,
> Ken
>
> On Sat, Oct 13, 2012 at 2:07 PM, Aaron Wolfe <aawolfe at gmail.com> wrote:
>
>>
>>
>>
>> If that means xor the data bits, sure.  We already flip bit order and some
>> other things for 230k mode, so there is an existing interface to support
>> transformation of the data.  If we also need to change level of start
>> bits..hmmm I don't think its possible in software..?  But I'm no serial
>> guru.
>> If it can be done, happy to do it.
>>
>
> On Oct 13, 2012 7:52 AM, "Ken H." <dragon.atv at gmail.com> wrote:
>>
>> Aaron,
>> The Dragon's PA1 Tx line is internally inverted. Phill's Dragon parallel
> to
>> bitbanger adapter design includes a level shifter and an LS04 to invert
> the
>> signal again.
>> The hardware design could be simplified if it would be possible to have
> the
>> Drivewire server handle the inversion of the output signal coming from the
>> Dragon.
>>
>> Do you think it would it be possible to add a "Dragon Tx Invert" option to
>> the Drivewire server code?
>>
>
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