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On 2025-02-19 17:56, K9HZ wrote:
> Here’s another thing.? There are other ways to interface USB to the
> Teensy if you need more USB hardware.? The FT201, FT233, FT311, FT2222
> are all devices that sit on one of the I2C busses as a USB translation
> device.? There appear to be Arduino libraries for all of these
> devices.

*** For low-performance USB serial - like CAT, that would be fine.? But
then
we wind up with two USB cables, unless we shoehorn a little hub into the
radio
somewhere.? I *really* like the idea of having one cable from the radio
to the
computer.

? ? ? ? ? ? ? ? ? - Jerry




>
> DR. WILLIAM J. SCHMIDT - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ
> PJ2/K9HZ VP2EHZ
>
> Owner - Operator
>
> Big Signal Ranch – K9ZC
>
> Staunton, Illinois
>
> Owner – Operator
>
> Villa Grand Piton – J68HZ
>
> Soufriere, St. Lucia W.I.
>
> Rent it: www.VillaGrandPiton.com [1]
>
> Moderator: North American QRO Group at Groups.IO.
>
> Moderator: Amateur Radio Builders Group at Groups.IO.
>
> email:? bill@...
>
> FROM: [email protected]
> <[email protected]> ON BEHALF OF K9HZ
> SENT: Wednesday, February 19, 2025 7:41 PM
> TO: [email protected]
> SUBJECT: Re: [SoftwareControlledHamRadio] CAT
>
> That’s a good idea and actually, I think I saw an article on someone
> using a USB server device with their T41.? I don’t know how that
> works but its out there…
>
> DR. WILLIAM J. SCHMIDT - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ
> PJ2/K9HZ VP2EHZ
>
> Owner - Operator
>
> Big Signal Ranch – K9ZC
>
> Staunton, Illinois
>
> Owner – Operator
>
> Villa Grand Piton – J68HZ
>
> Soufriere, St. Lucia W.I.
>
> Rent it: www.VillaGrandPiton.com [1]
>
> Moderator: North American QRO Group at Groups.IO.
>
> Moderator: Amateur Radio Builders Group at Groups.IO.
>
> email:? bill@...
>
> FROM: [email protected]
> <[email protected]> ON BEHALF OF Mark J Culross
> SENT: Wednesday, February 19, 2025 7:34 PM
> TO: [email protected]
> SUBJECT: Re: [SoftwareControlledHamRadio] CAT
>
> Jerry: could you just use the standard Serial + Audio USB
> configuration on the primary microUSB port, then add an external
> USB-to-serial adapter plugged into the USBhost port & use that
> additional interface for your CAT control ??? Just a thought...
>
> Mark J Culross
>
> KD5RXT
>
> Sent from AT&T Yahoo Mail on Android [2]
>
>> On Wed, Feb 19, 2025 at 5:54 PM, jerry-KF6VB
>>
>> <jerry@...> wrote:
>>
>> All,
>>
>> I have been working on CAT ( remote control ) for the T41.? I
>> re-architected it to a data-driven approach that is much cleaner and
>>
>> will be easier to maintain and expand.
>>
>> I have the basics running:? read & set the frequency, read & set
>> the
>> volume and mike gain, set the operation mode, make it transmit.? It
>> is
>> an emulation of the Kenwood TS-2000.? There is a LOT of stuff that
>> we
>> don't do yet.
>>
>> I have given the code to Jack.? I hope it winds up in the
>> permanent
>> archive.
>>
>> Right now, I am getting nowhere fast with the next step:? piping
>> audio
>> over the USB.? With that, we would be able to run digital modes with
>>
>> nothing but a USB cable between the radio and a PC.
>>
>> USB function is selected by the "USB Type" pulldown at the Arduino
>>
>> IDE.? There are various combinations of functions, but not the one
>> that
>> we need:? two serial ports, plus audio.? One serial port for the
>> teensy
>> uploads & Serial printf()s, a second serial port for CAT control,
>> and an
>> audio port.
>>
>> The code that implements these USB functionalities is buried in
>> the
>> Teensy "core" - the actual TeensyDuino code.? In my system this is
>> at:
>>
> c/Users/Jerry/AppData/Local/Arduino15/packages/teensy/hardware/avr/1.59.0/cores/teensy4.
>>
>> The definitions of the USB choices are in usb_desc.h.? It's
>> basically a
>> big array of #define's.? Lots of sets of #defines, each set in an
>> #elif
>> section.
>>
>> ANYWAY, I hijacked the "USB_TRIPLE_AUDIO" section and replaced the
>> third
>> serial port with audio.
>>
>> Big fail.? It compiles and loads, but then the "composite USB
>> device"
>> does not start, there not only no audio, there are no serial ports.
>>
>> Without serial ports, I have to hit the button on the Teensy to
>> upload
>> new code to it.? I'm at a bit of a loss as to how to troubleshoot
>> it.
>> USB is pretty complicated...and no debugger.? Can't even do debug
>> printf's.? One possibility would be to hook up a not-USB serial
>> interface to a couple of
>> teensy pins.? Or do what I did once upon a time...find an unused I/O
>> pin
>> and have it emit morse code.
>>
>> The Teensy is limited to 8 USB "Endpoints".? That limits the number
>> of
>> USB devices you can have active.? Two serial ports plus audio maxes
>> it
>> out.? Which is too bad.? There's also a simulated disk drive, which
>> could come in handy.
>>
>> Any USB experts out there?
>>
>> - Jerry, KF6VB
>
>
>
> Links:
> ------
> [1]
> [2]
>
> [3] /g/SoftwareControlledHamRadio/message/32805
> [4] /mt/111280742/243852
> [5] /g/SoftwareControlledHamRadio/post
> [6] /g/SoftwareControlledHamRadio/editsub/243852
> [7]
> /g/SoftwareControlledHamRadio/leave/10484476/243852/1943518115/xyzzy