That's the only properly supported way Allstarlink/HamVoIP's
SimpleUSB driver does PTT. The DINAH and other interfaces like it
just converts that to essentially a continuous volume down press.
I understand Direwolf has a configuration option to support this
method of PTT as well, though it didn't used to. Even echolink on
Windows now supports this keying method, I believe, with URI
support, though I don't know how it gets around turning the output
volume down at the same time if it does.
You can use an unmodified fob from a MPOW 071 USB headset on
Linux with ASL/HamVoIP's SimpleUSB as a radio-less node
configuration to test this. Volume down is momentary PTT.
On 6/16/2022 3:36 PM,
al@... wrote:
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So I'm hitting the standard problem in Windows that Pin6 of the
DIN is connected to the VOLDN pin on the CM119B in DINAH. This
results in the volume being turned down every time the squelch
opens on the radio.??
So here is the question:? Why didn't DINAH use one of the
available GPIO pins instead of VOLDN?? Is it because the software
that is typically used with DINAH doesn't support that?
I'd love to use DINAH on Windows.? I'm perfectly happy to update
the client software to support a GPIO in open source projects.?
I'm an embedded software developer, and I've recently re-joined
the Windows team at Microsoft As well.? So I'd be pleased to help
fix this... But I'll need a bit more information on what drove
that electrical decision in the schematic. And I'll need to know
the key pieces of software that DINAH is targeting.? I'm aware of
DireWolf, but what else?
Alan Ludwig
N7JTI -- and Packet user as well as:
Principal Software Development Engineer?
Device Security Team
Enterprise and Security?
Microsoft
