[Fwd: Re: [GreenKeys] USB-to-serial adapters, and baudot]

[H.E. Robert, [Just Bob!]]

Hi Lester,

Not sure if this helps, but I use a similar device from Belkin, model 
F5U109, which they advertise
as a PDA accy, USB computer end, DB-9 RS-232 PDA end, and have used it 
successfully
with hyperterm 8 bit ASCII down to 300 baud only.  The device needed no 
drivers with
Windows XP, and is full duplex/bi-directional, and internally uses an 
industry standard EIA driver chip, a HIN211CA, here's the specs...

http://www.alldatasheet.co.kr/datasheet-pdf/view/INTERSIL/HIN211CA.html

......it also uses a pic controller P87C52UBAA, that is an 8/16 bit 
processor, with built in UART Baud rate generator, etc.  There is some 
bit level manipulation available, but there are some restrictions.  You 
would have to be a pretty savvy coder to pull it off, and upload the 
code to the on-chip eprom, here's the specs....

http://www.alldatasheet.co.kr/datasheet-pdf/view/PHILIPS/P87C52UBAA.html

All that being said, I don't believe it supports a baud rate below 110.

So I think the answer to your question, will be a flat "no" from the 
manufacturer, as any of
them would have to re-write the pic code.  But a hobbyist so driven, 
might pull it off???

I didn't look at the original thread, so not sure what the original task 
was, (printing to a tty, or using a "real" keyboard to enter text on a 
PC???), but in my "Rube Goldberg-like brain", you could use one of these 
devices connected @ 110 baud, to an old ASCII > BAUDOT converter to do 
the 8 > 5 bit conversion, and baud rate match???

Okay, okay what the heck am I smoking...right?  I'm new to the list 
here, so just wanted to say hi to everybody out there, I'm sadly not a 
Ham, but Vintage Computer and Teletype guy, retired from Ma Bell, 
lookin' for a 35-ASR close to Detroit Mich. 

I use the little Belkin adapter to upload and talk to my Altair 8800, 
and it works flawlessly.  But the way they market it, it seems like it 
would only work with PDA's.

I do have a question, when an old-timer HAM passes beyond the 
ionosphere, he becomes a "Silent Key" right?  Then what happens to an 
old computer guy?  Does he/she become a "Silent Keyboard"?  Or do they 
just leave a bunch of Orphaned Mice behind?

"Just Bob!"

Veenstra, Lester wrote:

>No response received to date.
>
>Lester Veenstra
>Senior Engineering Program Manager
>Intelsat General
>6550 Rock Springs Drive, Suite 450
>Bethesda Maryland, 20817
>+1-301-571-1212
>e-mail: lester.veenstra at intelsatgeneral.com
> 
>
>-----Original Message-----
>From: greenkeys-bounces at mailman.qth.net
>[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Lester.veenstra
>K1YCM
>Sent: Monday, February 28, 2005 9:39 PM
>To: techsupport at hawkingtech.com
>Cc: greenkeys at mailman.qth.net; gil smith; teletype at buzbee.net;
>bythewayb at readysetsurf.com
>Subject: Re: [GreenKeys] USB-to-serial adapters, and baudot
>
>Question: For your H-UC232S Serial Port to USB Adapter
>Does it support baud rates down to 45.5 and will it support 5 bit 
>characters?
>     Thanks
>              Lester Veenstra   K1YCM/3
>-------------------------------------------------------------------
>
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