If you're using something like an FT232 to convert from usb to TTL on the
device side, Windows will automatically install a virtual com port driver,
and you just need to look in the device manager to see which COM port # it
set for that device. When you open the SerialPort object in Cuis, just
provide the port # as the port argument, and it should work with no issues.

- Jon


On Sat, Feb 25, 2012 at 5:22 AM, David T. Lewis <lewis at mail.msen.com> wrote:

> On Fri, Feb 24, 2012 at 08:38:29PM -0800, Overcomer Man wrote:
> > How do I make a Serial ComPort to text I/O with a USB device?
> >
> > I am currently trying to emulate most of this simple software so I can
> > build better tools in Smalltalk:
> >
> http://www.parallax.com/Portals/0/Downloads/sw/propeller/Parallax-Serial-Terminal.exe
> >
> > I am using Cuis 3.3 under Win XP and/or Vista but am willing to use any
> VM,
> > .dll, or package to get started.  Thanks.
>
> Hi Kirk,
>
> This may turn out to be a complicated question, so I am copying the
> squeak-dev list also.
>
> Since you are starting with a Cuis image, you will want to add the
> class SerialPort from a Squeak image (probably you can just file it
> out from Squeak, and file it in to Cuis). This will give you the basic
> access to COM ports from your image. I think (but I'm not certain) that
> any of the usual VMs (standard VM or Cog) will have the necessary
> support for using SerialPort on Windows.
>
> I think that on Windows using USB serial ports is a matter of mapping
> the serial ports to something that looks like e.g. COM3:, but I am
> not a windows user so I don't know the specifics. Probably someone
> on the squeak-dev list will be able to give some advice.
>
> HTH,
> Dave
>
>
>
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