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Re: [lpc2000] SPI comms with another micro

2006-03-06 by Tom Walsh

Robert Wood wrote:

>Hi Leon,
>
> >> I've used the Maxim chip (interfaced to a PIC) and it works OK. I've 
>also used 2313 AVRs interfaced to a PIC (using bit-banged SPI on the 
>AVRs) when I needed several UARTS. The latter also worked very well. <<
>
>I have no issues with Maxim stuff working, just their dire record in 
>actually having stuff available!
>
>  
>
BTDT, Maxim can be a pain with finding something nice and then find out 
it is not in production.  Seems they have a rich portfolio of ideas and 
wait until somebody orders a few thousand before the actually make the 
stuff..

That being said, I did incorporate the MAX3100 SPI UART into my design.  
There are three of them on the board.  I did this after looking at the 
inventory at DigiKey.  They seem to be selling significant quantities of 
them to others, so I bit.

If you do look to an SPI UART, I would recommend that one to you.  It 
even is capable of 9bit communication, although it is not automatic, you 
have to set the ninth bit but it is a 16bit word that is sent to the 
UART for each transaction.

TomW



-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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