> When you plug in a high speed USB disk you wouldn't expect > the data to be handled via rs232 emulation would you?
High speed USB disks use serial protocol - the transport is the same as RS-232 but does not include the +/- 10-12V drivers. Support for high speed serial data transfer (e.g., USB hard drives, cameras, etc.) is the primary reason that "modern" USB adapters no longer support 45.45 baud 5 bit codes! 73, ... Joe, W4TV > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Jeff Herr > Sent: Monday, March 15, 2010 11:10 AM > To: [email protected] > Subject: Re: [Elecraft] USB to serial angst - move beyond emulation > > > Why use rs232 emulation at all? > > Emulation = not necessarily a good thing > > When you plug in a high speed USB disk you wouldn't expect > the data to be handled via rs232 emulation would you? > When you plug in a Ethernet device you wouldn't expect the > data to be handled via rs232 emulation would you? > > Why use emulation at all? I know, I know, HRD.... > > > > A "telnet" interface on the Elecraft side via Ethernet, all > native, would require no drivers on the pc side. A native USB > interface could be done the same way. > > Both would require a supporting application and/or library on > the pc side, but would work well and be very high performance > and stability. Both would require firmware support on the > Elecraft side......as does the existing rs232 methodology. > > But the result ... No drivers to load, no silly > configuration, no conflicts with other serial devices, no > baud rates to set. > > Let's face it, 232 emulation over USB is "messy" and it's a > remnant of the past. Just the fact that all of us have been > exposed to so much trouble is a bad indicator. > > My bet is the chipset isn't the problem it's the interface on > the pc side. I think that lack of standards in this niche > have resulted in a lot of sloppy code that "sort of works" > but does not tolerate change. i.e. using a diff USB port. > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
