[amsat-bb] Error accessing FunCube Pro from FoxTelem
Joseph Armbruster
josepharmbruster at gmail.com
Thu Jan 30 22:45:00 UTC 2020
Chris,
There's a predict4java source folder and a predict4java.jar?
Which is the correct one to use? :-)
Joseph Armbruster
On Thu, Jan 30, 2020 at 5:17 PM Joseph Armbruster <
josepharmbruster at gmail.com> wrote:
> Chris,
>
> What version of the fun cube pro do you have, and does it make a
> difference which one is used? I have an older v1.1 that I'm going to
> connect in a few (Serial 3354). Pulling the code down now...
>
> Joseph Armbruster
> KJ4JIO
>
> On Thu, Jan 30, 2020 at 9:58 AM Chris Thompson <g0kla at arrl.net> wrote:
>
>> A couple of people sent out the git repo URL. If you have time to look
>> at this, that would be great. It's not an area where I am a deep expert.
>> The FCD has two USB interfaces, as noted. The Soundcard interface uses
>> standard Audio IO APIs and works fine. USB access is transparent and you
>> don't need to worry about it. But the HID interface has been difficult.
>> It was a great idea to not need any libraries, but the flip side issue is
>> that every platform has its own libraries. Writing a single application
>> that works on the PI (ARM), Linux (x86), Mac, Windows has been difficult in
>> this area. The HID approach is great for the end user, difficult for the
>> developer.
>>
>> I've used three different libraries so far. I started with direct Java
>> wrapping of the C libraries. It worked to a degree in Windows, but I
>> struggled on other platforms. I moved to the PureJavaHID library and that
>> worked across platforms. But it holds the connection so only one program
>> could connect to the device. It did not play well with the Funcube
>> Dashboard for example. And it had issues where commands would not be
>> sent. I'm now using usb4Java which wraps LibUSB. I understand you can
>> talk HID through LibUSB, which is just a lower level library. But I could
>> be wrong. I leveraged code that Denis Sheirer wrote for SDRTRunk. But
>> that also has strange difficult to track down issues, as we can see.
>>
>> So I am open to a better way to do this that works on all the platforms
>> people are using. Any help is really appreciated.
>>
>> 73
>> Chris
>>
>>
>> On Wed, Jan 29, 2020 at 12:13 PM Joseph Armbruster via AMSAT-BB <
>> amsat-bb at amsat.org> wrote:
>>
>>> Stephen,
>>>
>>> If someone shoots me a link to the foxtelem code, I'll gladly help debug
>>> it. I have a Funcube dongle Pro here I can use.
>>>
>>> Joseph Armbruster
>>>
>>>
>>> On Wed, Jan 29, 2020 at 7:30 AM Stephen E. Belter <seb at wintek.com>
>>> wrote:
>>>
>>> > Joe,
>>> >
>>> > I believe the FUNcube dongle uses *two* virtual USB interfaces over the
>>> > single physical USB port. The IQ stream looks like a standard sound
>>> card
>>> > and is one of the virtual USB interfaces.
>>> >
>>> > The control functions like frequency, preamp gain, etc., use the
>>> standard
>>> > HID (Human Interface Device) interface, USB-HID.
>>> >
>>> > Jim's problem is unusual, but I have the same problem with FoxTelem on
>>> my
>>> > Windows 10 machines. I haven't discovered a solution, yet.
>>> >
>>> > 73, Steve N9IP
>>> > --
>>> > Steve Belter, seb at wintek.com
>>> >
>>> >
>>> > On 1/28/20, 10:00 PM, "AMSAT-BB on behalf of Joseph Armbruster via
>>> > AMSAT-BB" <amsat-bb-bounces at amsat.org on behalf of amsat-bb at amsat.org>
>>> > wrote:
>>> >
>>> > Lib USB!? I thought Howard told me at the symposium (circa 2008)
>>> that
>>> > they
>>> > were using usb-hid ?!?!?
>>> >
>>> > Howard...? Or was that on the hardware-side?
>>> >
>>> > Joseph Armbruster
>>> > KJ4JIO
>>> >
>>> > On Tue, Jan 28, 2020 at 9:27 PM James Jipping via AMSAT-BB <
>>> > amsat-bb at amsat.org> wrote:
>>> >
>>> > > Good Evening!
>>> > > While attempting to use my FunCube Pro directly from FoxTelem I
>>> get
>>> > an
>>> > > error:
>>> > > LIBUSB_ERROR_NOT_FOUND. An internet search has found mentions
>>> of
>>> > the
>>> > > error but no solutions for my situation. I am using Windows 10
>>> for
>>> > the
>>> > > OS on my comupter. Any thoughts or suggestions ??
>>> > >
>>> > > By the way, I use SDRConsole and feed the audio via VB_Audio
>>> Virtual
>>> > > Cable with GREAT results. I even have RSDConsole with WispDDE
>>> > running
>>> > > the antenna rotor controller. I thought I would try the direct
>>> feed
>>> > > FoxTelem- to-FunCube before I set up My Raspberry Pi for
>>> > "Fox-in-a-Box"
>>> > >
>>> > > One last question, while I'm here: Is there any way FoxTelem
>>> without
>>> > > SDRConsol, with a DDE program , could run the rotor controller?
>>> > >
>>> > > Thank you for you help.
>>> > >
>>> > > Jim Jipping, W8MRR
>>> > > AMSAT # 5512
>>> > > _______________________________________________
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>>> >
>>> _______________________________________________
>>> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership.
>>> Opinions expressed
>>> are solely those of the author, and do not reflect the official views of
>>> AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite
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>>>
>>
>>
>> --
>> Chris E. Thompson
>> chrisethompson at gmail.com
>> g0kla at arrl.net
>>
>
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