Re: GA144 Application Board

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From	Paul Rubin <no.email@nospam.invalid>
Newsgroups	comp.lang.forth
Subject	Re: GA144 Application Board
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rickman <gnuarm@gmail.com> writes:
> With the limited internal ram, yes, external RAM is required.  I find
> it interesting that with the internal word size being 18 bits, the GA
> eval board and SRAM board have 16 bit memory.  I looked for 18 bit
> memory, but it seems to be very expensive now.  At one time it was
> quite common and not so expensive.

Albert mentioned PC memory, and it occurs to me, PC memory is almost
always DIMM format, 32 bits wide (consumer PC's) or 36 bits(?)
(workstations and servers, for ECC).  Maybe you could use a 36 bit
module as two 18 bit words, or even use a 32 bit module as 18 bit
memory, simply discarding 14 of the bits.

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GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-10 17:24 -0800
  Re: GA144 Application Board Rafael Deliano <Rafael_Deliano@arcor.de> - 2012-03-11 10:10 +0100
    Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-11 04:33 -0700
      Re: GA144 Application Board emmanuel <emmanuel.said@cern.ch> - 2012-03-11 06:00 -0700
        Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-11 19:41 -0700
      Re: GA144 Application Board Rafael Deliano <Rafael_Deliano@arcor.de> - 2012-03-11 16:03 +0100
        Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-11 13:45 -0700
  Re: GA144 Application Board Jecel <jecel@merlintec.com> - 2012-03-11 12:33 -0700
  Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-11 19:45 +0000
    Re: GA144 Application Board Matthias Koch <koch@pci.uni-hannover.de> - 2012-03-15 14:11 +0100
  Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-14 19:53 -0700
    Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-20 20:15 -0700
      Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-21 13:08 +0000
        Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-21 12:13 -0700
          Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-22 11:36 +0000
            Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-22 17:50 +0000
              Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-22 14:50 -0700
                Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-23 12:24 +0000
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-23 10:11 -0700
                Re: GA144 Application Board Roger Ivie <rivie@ridgenet.net> - 2012-03-23 13:15 -0500
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-24 11:51 -0700
                Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-25 12:06 +0000
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-25 12:50 -0700
                GA144 memory interfacing was Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-26 13:00 +0000
                Re: GA144 memory interfacing was Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-26 20:03 -0700
                Re: GA144 memory interfacing was Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-28 12:21 +0000
                Re: GA144 memory interfacing was Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-28 07:59 -0700
            Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-22 14:26 -0700
          Re: GA144 Application Board hwfwguy@gmail.com - 2012-03-22 12:25 -0700
            Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-22 13:07 -0700
              Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-22 14:54 -0700
                Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-22 15:00 -0700
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-23 10:15 -0700
                Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-23 17:32 -0700
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-24 12:01 -0700
                Re: GA144 Application Board Jan Coombs <jan_2011-02@murray-microft.co.uk> - 2012-03-24 22:27 +0000
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-24 19:13 -0700
                Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-24 16:01 -0700
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-24 19:18 -0700
                Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-25 13:06 -0700
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-25 15:02 -0700
                Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-25 15:51 -0700
                Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-25 16:38 -0700
            Re: GA144 Application Board Richard Owlett <rowlett@pcnetinc.com> - 2012-03-22 16:54 -0500
              Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-23 10:17 -0700
            Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-22 14:52 -0700
            Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-23 12:34 +0000
              Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-23 10:24 -0700
            Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-23 14:22 +0000
      Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-22 08:12 -0700
        Re: GA144 Application Board Albert van der Horst <albert@spenarnc.xs4all.nl> - 2012-03-23 12:38 +0000
      Re: GA144 Application Board Paul Rubin <no.email@nospam.invalid> - 2012-03-22 08:52 -0700
        Re: GA144 Application Board rickman <gnuarm@gmail.com> - 2012-03-22 15:00 -0700
  Time to revisit S100 Bus? - was [Re: GA144 Application Board] Richard Owlett <rowlett@pcnetinc.com> - 2012-03-22 20:17 -0500
    Re: Time to revisit S100 Bus? - was [Re: GA144 Application Board] rickman <gnuarm@gmail.com> - 2012-03-23 10:29 -0700

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