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Re: tethered Forth

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On Sunday, September 15, 2013 3:48:00 PM UTC-4, Paul Rubin wrote:
> ... (Stephen Pelc) writes:
> 
> >>I do have an MSP430 Launchpad but with 16k flash / 512B ram, some of the
> >>tiny ATmega boards are actually more powerful (plus smaller). 
> 
> > How is an AVR more powerful than an MSP430? Just because the chips
> > on the Launchpad are RAM limited says nothing about the relative
> > merits of the families. 
> 
> The comparison is specifically between the Atmega processors found on
> (e.g.) the Teensy boards, vs the MSP430 processor found on the
> Launchpad.  The Atmegas are more powerful than the largest Launchpad
> processor in the sense of having more program capacity and ram.  There
> may be other members of the MSP430 family that have more capacity than
> the Atmega, but they are not compatible with the Launchpad.  The bigger
> MSP430's are rather expensive and it probably makes more sense to use an
> ARM.  The most interesting MSP430's are the FRAM models and it would be
> great if they made some Launchpad compatible versions.
> 
There are two flavors of the TI MSP430 Launchpad.  The $10 value line version and the $13 one with more memory - 8k RAM, 128k flash.  That should be big enough.  The two are binary compatible so moving from one to the other is trivial.
As to which family is more "powerful" - memory size is not a good determination of "power" of an embedded processor.

As Stephen has noted, the 32bit ARM boards are also quite available and run rings around the 8/16 bit chips.  And the mA/MIPS numbers rival the best as does the price.  Hard to justify sticking with the old other than familiarity and inertia.

Gary

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tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-07 12:25 -0700
  Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-07 10:40 -1000
    Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-07 15:05 -0700
      Re: tethered Forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-07 17:09 -0500
        Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-07 15:38 -0700
          Re: tethered Forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-08 02:09 -0500
      Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-07 22:21 -1000
        Re: tethered Forth Lars Brinkhoff <lars.spam@nocrew.org> - 2013-09-08 11:39 +0200
        Re: tethered Forth "Ed" <invalid@invalid.com> - 2013-09-09 22:42 +1000
        Re: tethered Forth Matthias Koch <matthias.koch@hot.uni-hannover.de> - 2013-09-16 15:16 +0200
          Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-16 07:20 -1000
  Re: tethered Forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-07 16:13 -0500
    Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-07 18:00 -0700
    Re: tethered Forth Brad Eckert <hwfwguy@gmail.com> - 2013-09-08 11:00 -0700
      Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-08 08:55 -1000
        Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-14 15:59 -0700
          Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-14 17:56 -1000
            Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-15 22:27 -0700
              Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-15 21:18 -1000
                Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-16 22:46 -0700
                Re: tethered Forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-17 02:45 -0500
              Re: tethered Forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-16 03:19 -0500
          Re: tethered Forth Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-15 12:56 -0500
          Re: tethered Forth Brad Eckert <hwfwguy@gmail.com> - 2013-09-15 19:47 -0700
            Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-15 18:49 -1000
              Re: tethered Forth Brad Eckert <hwfwguy@gmail.com> - 2013-09-16 11:58 -0700
    Re: tethered Forth hughaguilar96@yahoo.com - 2013-09-10 20:47 -0700
  Re: tethered Forth bob.nash1@gmail.com - 2013-09-10 17:27 -0700
  Re: tethered Forth stephenXXX@mpeforth.com (Stephen Pelc) - 2013-09-11 12:54 +0000
    Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-14 15:53 -0700
      Re: tethered Forth stephenXXX@mpeforth.com (Stephen Pelc) - 2013-09-15 17:14 +0000
        Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-15 12:48 -0700
          Re: tethered Forth Gary Bergstrom <forthprgrmr@gmail.com> - 2013-09-17 13:46 -0700
            Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-17 18:55 -0700
              Re: tethered Forth "Elizabeth D. Rather" <erather@forth.com> - 2013-09-17 15:51 -1000
              Re: tethered Forth stephenXXX@mpeforth.com (Stephen Pelc) - 2013-09-18 11:19 +0000
                Re: tethered Forth Matthias Koch <matthias.koch@hot.uni-hannover.de> - 2013-09-18 15:46 +0200
                Re: tethered Forth Paul Rubin <no.email@nospam.invalid> - 2013-09-18 08:43 -0700
              Re: tethered Forth Brad Eckert <hwfwguy@gmail.com> - 2013-09-18 09:10 -0700
              Re: tethered Forth rickman <gnuarm@gmail.com> - 2013-09-18 20:20 -0400

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