Lpc2000

--- In lpc2000@yahoogroups.com, "Rob Jansen" <rob@m...> wrote:
>
> Dear nonuckingfumber,
> 
> OT: would it be possible to change your name into your real name, my
> e-mail mind keeps thinking this is spam ...

I **hate** names with numbers in them, after an hour spent trying to 
get Yahoo to accept any reasonable name with no numbers I ended up
with this one out of desperation ;-) Perhaps I will have another go
sometime...

> 
> Note that the lpc2148 is the only device with the DMA buffer, other
> menbers of the lpc214x group do not have this function.
> 
> The ftdi solution will cost you something of 10-12 pins to interface to
> the lpc210x if you take an ftd245 or a similar parallel interface. Using
> an ft232 like device with a serial interface may not give you any
> (technical) advantage on top of a standard UART connection...
> 

The 'advantage' is the that that serial ports are rapidly disaspearing
on the latest generation of compact computers.


> The gotchas on the lpc2148 are still there. Look at the recent USB posts
> in this group, it looks like USB is not fully stable and defenitely not
> working on GCC (at least not publicly availale that is).
> 
> The qestion if you should go for ftdi or lpc2148 is not that easy to
> answer. If you want a standard mass storage or HID device I would go for
> lpc2148, if you do handle every driver detail in a specific
> (windows/linux) application I would currently still select the ftdi -
> shorter time-to-market.

Yep, I think the FTDI is looking a winner, it's another chip but we
all know how mysterious bugs and hiccups under a big OS can lead to
unknown delays and frustrations.

A collegue pointed out that RS232/USB adapters are available in bulk
for a few dollars each, so I might just put a good RS232 driver that
can do 230K and throw in an adapter free just in case the user has no
serial port.

BTW, this collegue also pointed out that RS232 can be used with line
driver adapters (RS422) and ether/serial adapters where remote
conection is desired (a possibility), something that cannot be done
with USB. 

Hmmm....RS232, a disguting 1960's interface for connecting modems to
mainframes that just refuses to day....it is still the most flexible
option :-)

Thanks for the info.