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[Tlf-devel] Re: USB, success!

From: rein couperus PA0R
Subject: [Tlf-devel] Re: USB, success!
Date: Fri, 10 Oct 2003 10:31:51 +0200

Good evening Wilbert,

thanks for the testing, I will upload a new version on sunday including the 
changes. If I read the TRlog mailing list the USB capability is a hot issue.

Can you explain what is additionally needed   to make it work (drivers, 
hardware)? Would  this also be possible for the LPT (CWdaemon)?

For tlf-0.9.3 I  have done the same for the TNC port, that will also work with 
Would appreciate if you could test that also some time next week...

Agn, tnx for the help!

Have a nice weekend....

Rein PA0R

P.S.: The transceive mode CT uses was the cause of several network crashes 
during our cqww-cw at CT9L last year. Every time an op spun the dial of the 
FT1000MP the network was flooded with freq. update packets, and the DOS 
systems crashed. Once all 3 at the same time :-) This meant rebooting the 

On Thursday 09 October 2003 23:53, Wilbert Knol wrote:
> Hi Rein,
> It's working perfectly now. On both /dev/ttyS0 and /dev/ttyUSB[0-3].
> I performed surgery on the rig, cutting the diode to take it out of what
> Icom calls 'transceive mode'. What was happening is this: in 'transceive
> mode', the rig broadcasts frequency  updates on the CI-V bus, as the VFO
> is being tuned.
> The transceive mode broadcasts were obviously colliding with the TLF poll
> frames, causing bus collisions and time-outs.
> The reason for having the 'transceive mode' activated is, that CT uses it.
> It is also the factory default.
> I believe CT doesn't poll the radio, but relies on serial port interrupts
> to catch mode and frequency changes.
> For my old IC725, this is a simple hardware modification, but I think
> modern Icom radios have it as a simple menu change.
> Perhaps it is worthwhile to mention this in the TLF docs. I will mention
> it to the hamlib guys too, for inclusion in the hamlib FAQ.
> Thanks for doing the USB changes.
> 73,
> Wilbert, ZL2BSJ.

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