Again I'll differ with Andy. With the sample code mChip was going to put on
their website (at least they promised it would be posted when I took the USB
class at the Masters) it would be VERY EASY for a relative beginner to get a
HID device working with the mChip devices.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)



----- Original Message -----
From: "Andrew Warren" <aiw@CYPRESS.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, October 15, 2001 6:34 PM
Subject: Re: [EE]: USB options for a hobbyist


> Chetan Bhargava <PICLIST@mitvma.mit.edu> wrote:
>
> > I have done a small research on Cypress USB devices and found that
> > they are only available in OTP (not even window cerdip). People at
> > Cypress suggested me to buy a development kit and that is too
> > expensive for a hobbyist. I would say that even the PIC is low
> > speed, but good for a hobbyist. USB PIC is available in window
> > cerdip and soon be available with flash ! :)
>
> Chetan:
>
> True, Cypress's low-speed USB micros are available only in OTP.
> Mostly, that's because those parts are designed for use in very high-
> volume applications like mice and keyboards, so the cost of an
> emulator and/or a few tubes of OTP parts is trivial.
>
> If you're a hobbyist who wants to make a USB device, though, I would
> HIGHLY recommend Cypress's full-speed "EZ-USB" micros over the low-
> speed parts.  Low-speed USB is dumb; full- and high-speed USB
> (especially with the "smart" SIE in the EZ-USB parts) is MUCH nicer.
>
> The EZ-USB parts are RAM-based, so you only need to buy one.  Code is
> downloaded to them either over the USB connection or from a serial
> EEPROM.
>
> An EZ-USB development kit is available from Cypress for around $400;
> if that's too expensive, there are a number of third-parties who sell
> <$100 EZ-USB development boards.
>
> -Andy
>
>
> === Andrew Warren -- aiw@cypress.com
> === Principal Design Engineer
> === Cypress Semiconductor Corporation
> ===
> === Opinions expressed above do not
> === necessarily represent those of
> === Cypress Semiconductor Corporation
>
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