Hmm, sorry. Forgot that point :)

What I remember, certain USB controller chips come with a prefabbed
driver library for the PC side. So theoretically, you'll have a working
driver with that package. But that's the theory. Get a devkit from a USB
controller, try to get it working on a range of platforms. If that works
out and you're comfortable with the driver software design, go ahead
with it. Don't have any brands though, I was only sideways involved with
that project.

Regards,
Claudio

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Michael Rigby-Jones
Sent: dinsdag 5 maart 2002 10:40
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC]: Serial/USB to I2C interface


> -----Original Message-----
> From: Claudio Tagliola [SMTP:cptagliola@CHELLO.NL]
> Sent: Tuesday, March 05, 2002 9:28 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [PIC]: Serial/USB to I2C interface
>
> There are also solutions to get I2C into your PC. Skips the
> modification of the PIC. Some ppl have modified a parallel port to
> I2C. For testing only the USB seems a tad overkill to me, especially
> if you have to extend and modify an already working product.
>
In my original post I mentioned that we already have a parallel port
solution.  Customers do not like this solution, parallel ports are
notoriously difficult to get working correctly under all circumstances
due to software dongles and varying port capabilities etc.  This
interface is not part of the product, it sits between the product and a
PC for evaluation purposes.  Under normal field operation the PC would
be a 16 or 32 bit microcontroller, and the I2C would be a built in
peripheral.

USB is not a definate must have, but has been requested as a "would
like" simply because most all modern PC's have at least 2 USB ports, and
the plug and play driver installation simplifies getting things up and
running.

Regards

Mike

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