Re: GA144 Programming

From	"Paul E. Bennett" <Paul_E.Bennett@topmail.co.uk>
Newsgroups	comp.lang.forth
Subject	Re: GA144 Programming
Followup-To	comp.lang.forth
Date	2012-07-16 19:43 +0100
Organization	Hidecs Consultancy
Message-ID	<a6j5nuF6heU1@mid.individual.net> (permalink)
References	<1121f776-65ff-4d4a-9246-f8e3d50e0318@googlegroups.com> <a6j3o8FiubU1@mid.individual.net> <9cffb93a-9c6c-4d1d-80b1-a7d52bae573e@googlegroups.com>

Followups directed to: comp.lang.forth

Show all headers | View raw

rickman wrote:


> What data did you use for the actual curve?  The problem is that the curve
> is not static, but a function of PVT (Process, Voltage and Temperature). 
> Will you be able to adjust for that?

Initially just the curve in the data-book. Yes, I should be able to adjust 
for the PVT variations once I start in on the programming side. Just not 
really there yet (main part of day job just a bit too hectic at present).
 
> To be honest, this the one of the last things I plan to deal with given
> the higher sample rates I'll be working with.  At 40 MSPS there are less
> than 6 bits of significance.  I bet the non-linearity in the sweet spot
> range of around 1 Vpp is not much more than 1 lsb.  Of course at slower
> rates and higher resolutions linearity will need to be corrected.
> 
> If you want to code this efficiently, I recommend that you study Chuck's
> current "blog" site postings.  There are getting to be lots of examples of
> how to efficiently program the GA144.

I shall be sure to have a read.

-- 
********************************************************************
Paul E. Bennett...............<email://Paul_E.Bennett@topmail.co.uk>
Forth based HIDECS Consultancy
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************

Back to comp.lang.forth | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

GA144 Programming rickman <gnuarm@gmail.com> - 2012-07-15 13:29 -0700
  Re: GA144 Programming rickman <gnuarm@gmail.com> - 2012-07-15 14:31 -0700
  Re: GA144 Programming Clyde Phillips <cwpjr02@gmail.com> - 2012-07-15 21:43 -0700
    Re: GA144 Programming rickman <gnuarm@gmail.com> - 2012-07-16 07:52 -0700
    Re: GA144 Programming "Clyde W. Phillips Jr." <cwpjr02@gmail.com> - 2012-07-16 17:47 -0700
  Re: GA144 Programming "Paul E. Bennett" <Paul_E.Bennett@topmail.co.uk> - 2012-07-16 19:09 +0100
    Re: GA144 Programming rickman <gnuarm@gmail.com> - 2012-07-16 11:17 -0700
      Re: GA144 Programming "Paul E. Bennett" <Paul_E.Bennett@topmail.co.uk> - 2012-07-16 19:43 +0100
  Re: GA144 Programming rickman <gnuarm@gmail.com> - 2012-07-25 15:10 -0700
    Re: GA144 Programming Paul Rubin <no.email@nospam.invalid> - 2012-07-25 16:23 -0700
      Re: GA144 Programming rickman <gnuarm@gmail.com> - 2012-07-27 21:49 -0700

csiph-web