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PICList Thread
'[OT]:Rabbit Processor'
2002\02\06@103753 by Mitch Miller

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Has anyone used the Rabbit processor (http://www.rabbitsemiconductor.com)?
I used Z-World's Dynamic C about 10 years ago with a Zx80 development
board, but the company I was designing for went bankrupt before system
ever went into service.

Would like anyone's thoughts regarding this micro. vs. a high end PIC.

-- Mitch

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2002\02\06@120742 by Jennifer Loiacono

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I have looked into it; the processor seems to be buggy and ill-supported.
Actually, the sales rep talked me OUT of buying it, warning that it could
not be counted on for timing sensitive applications.  However, it seems that
it might work well for simple apps that don't have a lot of real-time or
critical components.

Jen

> Has anyone used the Rabbit processor
> (http://www.rabbitsemiconductor.com)?
> I used Z-World's Dynamic C about 10 years ago with a Zx80 development
> board, but the company I was designing for went bankrupt before system
> ever went into service.
>
> Would like anyone's thoughts regarding this micro. vs. a high end PIC.
>
> -- Mitch

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2002\02\06@124254 by Martin Peach

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I have used the development kits for the Rabbit, the TCP/IP, and the
RCM-2200, the last one being the best so far. They are mutant Z80s. THe
RCM-2200 has support for TCP/IP over 10BaseT ethernet as well as rs-485 and
rs-232. Good as some kind of internet or LAN interface to a network of
micros communicating by rs-485. A PIC 16F877 has better basic I/O
functionality (more pins, more functions: a lot of the rabbit pins are used
for serial comms and the ethernet controller chip) but the RCM-2200 has a
_lot_ more RAM (128K) and FLASH (256K) and has more serial ports. Dynamic C
comes with the dev. kit and so far works OK but I haven't really put it
through the wringer, just used telnet protocol to switch relays with it.
Individual modules are small and relatively cheap (about the same as a Basic
Stamp but way more powerful). You don't need an expensive box like a
picstart, just the special serial cable (has a max232 in it).
/\/\/\/*=Martin

{Original Message removed}

2002\02\06@224939 by Alan Gorham

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I have the standard Rabbit devkit. I have to say that personally I don't get
on with it.
(Psychologists could have a field day with that statement!).
I bought it because it seemed to have good memory size, a nice set of
peripherals (!sorry)
and a fair amount of memory.

However, even though it comes with a library of device drivers I find
development much slower on it
than with a PIC. Maybe the 'grown-up' architecture is too advanced for me.

The price was SO attractive though, but it has sat in a box under my desk in
the 'must do something with it one day'
category.

A classic case of paying your money and taking your choice?

Alan

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