gnupic: New processor in gpsim
Subject:
Re: New processor in gpsim
From:
Matthew Bowles ####@####.####
Date:
27 Feb 2000 23:04:29 -0000
Message-Id: <38B9ABB1.FED49793@dsp.com.au>
Thomas Lundin wrote:
>
> Anyone who has worked with the 14000? I haven't used the analog parts of
> it yet, and I've been told after I decided to use this cpu that the
> analog parts aren't that good. So I don't know if I should change cpu
> before I get too involved with it.
>
> Thomas
>
The 14000 is well used in data acquisition, I nearly used it on a
project of mine, but ended up using the 16F877 for the extra RAM and
I/O. the 14000 basically sells itself by offering extra peripherals like
the temp. sensor. But essentially it is nothing special. same
instruction set as 16XXXX, I don't think the A/D is 16 bit unless you
play around and fiddle. here's a good way of getting higher resolution
A/D from your basic 8-bit A/D channels; use over-sampling. Take say 100
samples, add the results, and divide by 100. gives you better resolution
the more samples you take, but isn't as effective on very quiet (low
noise) signals.
my advice is take a look at C76 and C77 and f876/7. You'll find good
trade off oppurtunities for more RAM, more I/O, less pins, different
peripherals, etc..
matt
