Re: [CAD_CAM_EDM_DRO] EZ-USB

Hi again Chris,

I just posted some comments on the Cypress CY7C68013 to you! And I
think you must have been the one who originally mentioned the AN21xx
series to me! I haven't started anything on USB, still trying to talk
to Gene Rice and Cypress about their chips. CD and tech ref coming...

Alan KM6VV


Chris Stratton wrote:

>
> Is anyone actively working on a USB motion control interface?
>
> I've been doing some looking into what would be involved,
> and am getting tempted by the EZ-USB line from Cypress
> (they bought out Anchor, which started it).
>
> Basically these are 8051 microcontollers that hang off the USB bus.
> The cool part is that the code for them can be downloaded over the
> bus. The newer EZ-USB2 chips (which are all PQFP surface mount) go
> for about $35. Development boards based on the older chips are about
> $60-80.
>
> It seems like it should be possible to get these devices to emulate a
> subset of the ISA bus to work with existing designs, to talk to
> something like the LS Digital encoder chips, and possibly to do step
> pulse generation or direct PWM for a servo amp.
>
> Chris
>
> Unfortunately, I'm having trouble tracking down the state of USB
> support under rtlinux - which is needed before EMC could use such a
> device - in my mind a gating issue to making it worthwhile.
>
>