Lpc2000

Prior to grilling my distributors:

Does anyone have any experience with a suitable low-cost USB Host peripheral
with the LPC21xx series?

Or even perhaps a low-cost Flash based ARM7 MCU that implements USB OTG?

I solely need to support thumb drives for data logging.  I've already seen
this:  http://www.ghielectronics.com/


Thanks,
Joel

> Prior to grilling my distributors:
> 
> Does anyone have any experience with a suitable low-cost USB Host
> peripheral
> with the LPC21xx series?
> 
> Or even perhaps a low-cost Flash based ARM7 MCU that implements USB OTG?
> 
> I solely need to support thumb drives for data logging.  I've already seen
> this:  http://www.ghielectronics.com/

I should point out the USBwiz from http://www.ghielectronics.com uses a
Phillips ISP1160 host, which uses 22 I/O.  Perhaps someone knows of a host
that uses less I/O?

Joel

Take a look at Cypress SL811HS, which uses an 8-bit data interface.
I have a schematic showing connection to an ARM720T, but I can't
remember where they came from. There is an app note on the Cypress
site on external processor connection.

   -- Doug



Joel Winarske wrote:
> Phillips ISP1160 host, which uses 22 I/O.  Perhaps someone 
 > knows of a host that uses less I/O?

Thanks Doug!

This looks good, a reasonable match with the LPC213x.  At least once they
address the silicon errata.

It sure would make sense if Phillips implemented an OTG controller.

Regards,
Joel

> -----Original Message-----
> From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf
> Of Doug Sutherland
> Sent: Friday, December 23, 2005 3:18 PM
> To: lpc2000@yahoogroups.com
> Subject: Re: [lpc2000] OT: USB Host peripheral
> 
> Take a look at Cypress SL811HS, which uses an 8-bit data interface.
> I have a schematic showing connection to an ARM720T, but I can't
> remember where they came from. There is an app note on the Cypress
> site on external processor connection.
> 
>    -- Doug
> 
> 
> 
> Joel Winarske wrote:
> > Phillips ISP1160 host, which uses 22 I/O.  Perhaps someone
>  > knows of a host that uses less I/O?
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
>

Yes Phillips makes OTG controllers.  

Correction:  It sure would make sense if Phillips implemented an OTG
controller as a peripheral in an LPC21xx part.

Joel

Though not integrated as you want, the ISP1362 OTG is available in
6x6mm BGA, nice and small. One thing I noticed about most embedded
USB devices, they are not high speed, just full speed USB. This is
true of all ARMs with USB I have looked at. I'm planning to use
the ISP1583 to provide 480mb/sec for ATAPI and audio streaming.
This chip can connect directly to ATAPI devices. Has a nice split
bus architure.

   -- Doug




Joel Winarske wrote:
> Correction:  It sure would make sense if Phillips implemented an OTG
> controller as a peripheral in an LPC21xx part.