Uwe Bonnes wrote:
> Before using that chip, think about the company politics about not releasing
> a linux open source driver (http://www.kroah.com/log/2004/11/18/).

thanks for that one! In your link Greg says:

"...If people are looking for a good usb to serial chip that is
supported on Linux, Windows, and OS-X, there's the PL2303 device from
Prolific, and the FTDI-SIO chip, and the MCT-U232 chip. All of these
work very well on Linux, and are fully supported by all distros. I think
they even might be cheaper than the CP2101 device..."

since I had much trouble in the past with binary-only distributed
"drivers" (not to mention the GPL violation in this special case), I
would also recommend not to use this CP2101. Or to write to "Silicon
Laboratories" and ask for source of drivers :-)

[topposting has been fixed]

On 2 Jul 2005 13:24:32 -0700, <picuser@hotmail.co.uk> wrote:

> joep wrote:
>> yea, it has a internal 48Mhz oscillator, I wonder if thats just a
>> trimmed R/C oscillator, usually they aren't good enough for serial
>> timing,
>
> All I can say is that I have used them with the 921600baud rate and it
> works perfectly.

But you have designed them, haven't you?  So you can provide the exact 
answer.

   Vadim

joep wrote:
> yea, it has a internal 48Mhz oscillator, I wonder if thats just a
> trimmed R/C oscillator, usually they aren't good enough for serial
> timing,

Presumably it is phase locked to the incoming USB clock so it will be
as accurate as the PC's clock.

kevin

All I can say is that I have used them with the 921600baud rate and it
works perfectly. I have had only bad experiences with the DLP ones
based on the FTDI chip and their support was terrible. I am sure Si
Labs will address the Linus issue in time...

joep wrote:
> yea, it has a internal 48Mhz oscillator, I wonder if thats just a
> trimmed R/C oscillator, usually they aren't good enough for serial
> timing,

yea, it has a internal 48Mhz oscillator, I wonder if thats just a
trimmed R/C oscillator, usually they aren't good enough for serial
timing,

PICUser <reubenwilcock@gmail.com> wrote:
> Check out:

> http://www.customidea.com/hr-usbuart.php

> VCP drivers for windows work great and its stand alone you just need to
> connect TX/RX and ground.

Before using that chip, think about the company politics about not releasing
a linux open source driver (http://www.kroah.com/log/2004/11/18/).

Bye
-- 
Uwe Bonnes                bon@elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

Andrew Jackson wrote:
> Its a Silicon Labs CP2101 according to the datasheet in an MLP form factor
> (5mm square). Neat though - minimal external components required.

Yes, kind of like we did making a board that has pads and holes
in the same pattern as a DE9 so we could retrofit our RS-232:
http://www.industrologic.com/usbprod.htm


-- 
Gary Peek                mailto:mylastname@mycompanyname.com
Industrologic, Inc.      http://www.industrologic.com
Phone: (636) 723-4000    Fax: (636) 724-2288

Yeah it works on its own - you dont have to have anything else there,
just the HR-USBUART connected to your micro via TX/RX and ground.

>> Pretty neat!  Will it work under 98SE?
>
> I suspect it's an FTDI chip on a neat little PCB- so the answer is
> probably yes.

Its a Silicon Labs CP2101 according to the datasheet in an MLP form factor
(5mm square). Neat though - minimal external components required.

    Andrew

Yes I think it does work with Win 98SE. Its not an FTDI chip - you
couldnt fit one in that small size I dont think.

Paul Burke wrote:
> Charles Jean wrote:
>
> >
> > Pretty neat!  Will it work under 98SE?
> >
>
> I suspect it's an FTDI chip on a neat little PCB- so the answer is
> probably yes.
> 
> Paul Burke