Ok, I now that Rabbit supply a USB-232 converter as a solution to the
non existence of serial ports on recent computers.
Wouldn't it be nice if the programming cable could have a native USB
interface instead of 232.
USB-232 converters are not all equal as I have found from my own
experiments where some converters simply don't work with the RFU let
alone running the development environment. Any idea what is "special"
about the converter that Rabbit supply?
Programming cable & USB
Started by ●May 3, 2006
Reply by ●May 3, 20062006-05-03
I have two converters from different manufacturers(Chinese or Taiwanese) and
both worked with a little bit of tweaking like disabling board detection,
reducing stop bits to 1, enabling USB converter option. Although I was not
satisfied but the point is that they work.
----- Original Message -----
From: Robert Horton
To: r...
Sent: Wednesday, May 03, 2006 3:25 PM
Subject: [rabbit-semi] Programming cable & USB
Ok, I now that Rabbit supply a USB-232 converter as a solution to the
non existence of serial ports on recent computers.
Wouldn't it be nice if the programming cable could have a native USB
interface instead of 232.
USB-232 converters are not all equal as I have found from my own
experiments where some converters simply don't work with the RFU let
alone running the development environment. Any idea what is "special"
about the converter that Rabbit supply?
SPONSORED LINKS Embedded module Microcontrollers Z-world
Intel microprocessors
------
YAHOO! GROUPS LINKS
a..
------
----- Original Message -----
From: Robert Horton
To: r...
Sent: Wednesday, May 03, 2006 3:25 PM
Subject: [rabbit-semi] Programming cable & USB
Ok, I now that Rabbit supply a USB-232 converter as a solution to the
non existence of serial ports on recent computers.
Wouldn't it be nice if the programming cable could have a native USB
interface instead of 232.
USB-232 converters are not all equal as I have found from my own
experiments where some converters simply don't work with the RFU let
alone running the development environment. Any idea what is "special"
about the converter that Rabbit supply?
SPONSORED LINKS Embedded module Microcontrollers Z-world
Intel microprocessors
------
YAHOO! GROUPS LINKS
a..
------
Reply by ●May 3, 20062006-05-03
In order to work with RCM modules, USB-RS232 converters have to provide
conversion for all RS signals, not just TxD and RxD.
A lot of cheap converters (sometimes labelled like "PDA compatible") skip a
signal or two.
There was a thread some time ago (and I think one is still alive at ZWorld
tech support board) listing adapters people find compatible. I have no
problems with Keyspan units, 19QW-HS. The FTDI USB-RS232 development kit
worked well for me as well.
HTH, George
-----Original Message-----
From: r... [mailto:r...]On
Behalf Of Robert Horton
Sent: Wednesday, May 03, 2006 12:56 PM
To: r...
Subject: [rabbit-semi] Programming cable & USB
Ok, I now that Rabbit supply a USB-232 converter as a solution to the
non existence of serial ports on recent computers.
Wouldn't it be nice if the programming cable could have a native USB
interface instead of 232.
USB-232 converters are not all equal as I have found from my own
experiments where some converters simply don't work with the RFU let
alone running the development environment. Any idea what is "special"
about the converter that Rabbit supply?
conversion for all RS signals, not just TxD and RxD.
A lot of cheap converters (sometimes labelled like "PDA compatible") skip a
signal or two.
There was a thread some time ago (and I think one is still alive at ZWorld
tech support board) listing adapters people find compatible. I have no
problems with Keyspan units, 19QW-HS. The FTDI USB-RS232 development kit
worked well for me as well.
HTH, George
-----Original Message-----
From: r... [mailto:r...]On
Behalf Of Robert Horton
Sent: Wednesday, May 03, 2006 12:56 PM
To: r...
Subject: [rabbit-semi] Programming cable & USB
Ok, I now that Rabbit supply a USB-232 converter as a solution to the
non existence of serial ports on recent computers.
Wouldn't it be nice if the programming cable could have a native USB
interface instead of 232.
USB-232 converters are not all equal as I have found from my own
experiments where some converters simply don't work with the RFU let
alone running the development environment. Any idea what is "special"
about the converter that Rabbit supply?
Reply by ●May 6, 20062006-05-06
Zworld's tech bulletin board has a good long discussion of this.
There is good stuff, and there is junk. NO adapter is as good as a
real serial port on the motherboard. Check it out from their site
"Support" >
"Bulletin Boards and FAQs" >
"Rabbit-based products" >
"USB Cable list"
There are a lot of quirky RS232 details that rabbit takes advantage
of to get speed and reliability. It ani't rocket surgery or brain
science, but it takes some attention to detail. The junk adapters
work kinda sorta with easier communications.
--- In r..., "Tausif Kazi"
wrote:
>
> I have two converters from different manufacturers(Chinese or
Taiwanese) and both worked with a little bit of tweaking like
disabling board detection, reducing stop bits to 1, enabling USB
converter option. Although I was not satisfied but the point is that
they work.
> ----- Original Message -----
> From: Robert Horton
> To: r...
> Sent: Wednesday, May 03, 2006 3:25 PM
> Subject: [rabbit-semi] Programming cable & USB
>
>
> Ok, I now that Rabbit supply a USB-232 converter as a solution to
the
> non existence of serial ports on recent computers.
>
> Wouldn't it be nice if the programming cable could have a native
USB
> interface instead of 232.
>
> USB-232 converters are not all equal as I have found from my own
> experiments where some converters simply don't work with the RFU
let
> alone running the development environment. Any idea what
is "special"
> about the converter that Rabbit supply?
>
>
>
>
>
> SPONSORED LINKS Embedded module Microcontrollers Z-world
> Intel microprocessors
>
>
> --------------------------------
----------
>
There is good stuff, and there is junk. NO adapter is as good as a
real serial port on the motherboard. Check it out from their site
"Support" >
"Bulletin Boards and FAQs" >
"Rabbit-based products" >
"USB Cable list"
There are a lot of quirky RS232 details that rabbit takes advantage
of to get speed and reliability. It ani't rocket surgery or brain
science, but it takes some attention to detail. The junk adapters
work kinda sorta with easier communications.
--- In r..., "Tausif Kazi"
wrote:
>
> I have two converters from different manufacturers(Chinese or
Taiwanese) and both worked with a little bit of tweaking like
disabling board detection, reducing stop bits to 1, enabling USB
converter option. Although I was not satisfied but the point is that
they work.
> ----- Original Message -----
> From: Robert Horton
> To: r...
> Sent: Wednesday, May 03, 2006 3:25 PM
> Subject: [rabbit-semi] Programming cable & USB
>
>
> Ok, I now that Rabbit supply a USB-232 converter as a solution to
the
> non existence of serial ports on recent computers.
>
> Wouldn't it be nice if the programming cable could have a native
USB
> interface instead of 232.
>
> USB-232 converters are not all equal as I have found from my own
> experiments where some converters simply don't work with the RFU
let
> alone running the development environment. Any idea what
is "special"
> about the converter that Rabbit supply?
>
>
>
>
>
> SPONSORED LINKS Embedded module Microcontrollers Z-world
> Intel microprocessors
>
>
> --------------------------------
----------
>
