Alt-BEAM Archive
Message #04951
To: beam@sgiblab.sgi.com, beam@sgiblab.sgi.com
From: Terry Newton wtnewton@nc5.infi.net
Date: Wed, 30 Jun 1999 02:38:32
Subject: [alt-beam] Re: PIC on solar
At 10:48 PM 6/29/99 -0700, Yves Klein wrote:
>James,
>I would strongly suggest that you use SX28 from scenix because they are
>on board programmable and have extensive libraries for their chips. Also
>they run at 50Mhz and use very similar language.
Nice chips but you pay in other ways, like having to fiddle with page
bits to jump around boundries and only 2 sub levels, enough to make a
programmer barf. It is a fast 12 bit core. I'll take a slower 14 bit
core any day.
> with pic's you need to
>use uv to erase them for about 10 to 20 min and need a programmer.
Not true, the '84's (and maybe others) are flashable. You can solder
it in place if you want and still program it using 3 pins pwr & gnd.
I was tempted at first by the glitz of the scenix but when I dug
deeper I saw the limitations, the parts in common use might be only
4 mhz but that's 3 mhz more than really needed to drive a 'bot.
Terry Newton
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