I would think the problem will creep in with non-addressable VFOs.
So if one is trying to read VFOA and the other VFOB (like in split mode) then
VFOs can get confused...
This sequence is not guaranteed to be atomic
S VFOAfS VFOBf
The other app could come in between the S/f commands and switch VFOs.
As long as everybody is asking for VFOA it should work OK other than
conflicting commands as you noted.
Mike
On Thursday, June 11, 2020, 07:56:45 AM CDT, Bill Somerville
<[email protected]> wrote:
Mike,
the microHAM uRouter application provides two sets of virtual serial ports
per rig. I have been using this facility with issues for many Years. Proper
arbitration of CAT commands is provided. Obviously conflicting commands cannot
be reconciled, but control from two applications is reasonable and practical
using this application with devices like the micro KEYER 2 and 2R+.
73
Bill
G4WJS.
On 11/06/2020 13:05, Black Michael via wsjt-devel wrote:
Reading the documentation it's implied and refers to a "control channel".
The thing just does a passthru so I don't know how it could possibly share the
rig with CAT control. That's likely why he got a bus collision error. I also
can't find a single youtube video of anybody doing CAT control using two
programs. The 2nd cat port is just for monitoring.
Unless I'm reading the wrong documentation. Nowhere in the docs does it say
you can have two CAT control channels. If it did they'd be bragging about it
for sure. They just don't explicitly state the limitation (should be obvious
to the casual user I'm sure :-)
From https://www.microham.com/Downloads/U2_English_Manual.pdf for example:
The virtual COM port assigned for Control can be shared with CW and/or PTT
but sharing must be specifically supported by the application. Many
applications do not know how to share the radio port with other functions, use
the control lines (RTS, CTS, DTR, DSR) for handshaking, or apply a fixed level.
Mike
On Thursday, June 11, 2020, 06:43:56 AM CDT, Bill Somerville
<[email protected]> wrote:
On 11/06/2020 12:36, Black Michael via wsjt-devel wrote:
> You can't have two programs doing CAT control to the MKII at the same
> time.
>
Mike,
that's not correct. The microHAM uRouter provides two sets of COM ports
per radio.
73
Bill
G4WJS.
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