Lpc2000

Guys,

It has to be USB.

I tried to convince the customer that a 1Gbyte SD card would suffice, but
they want to be able to walk up to the machine with a USB pendrive, and just
plug it in.

I have a lot of sympathy with their requirement.

USB has been so successful that it is a good standard.

Mike



-----Original Message-----
From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com]On Behalf Of
Rob Jansen
Sent: 06 October 2005 18:13
To: lpc2000@yahoogroups.com
Subject: Re: [lpc2000] Ethernet addon board for LPC

Mike Ward wrote:

> I need to be able to plug in a USB flash drive, or hard drive, and
> read and
> write FAT etc data format.
>
> So, it must be a host controller, or possibly OTG.

If type does not matter, why not use an SD card?
There was an article in CircuitCellar (see
http://www.circuitcellar.com/magazine/176toc.htm "Portable FAT library
for MCU Applications").
I bought the article ($ 1,50) and it contains a FAT filesystem interface
towards an SD/MMC including source code.

So if this is the only reason for USB host, go for the SD card (easier
to implement than USB).

Rob


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