Subject:
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RIS memory usage
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 7 Apr 1999 22:26:46 GMT
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Reply-To:
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MDF@TELEPORT.COMstopspam
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Viewed:
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1103 times
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I'm anxiously awaiting the time when I can buy my Mindstorms package,
but until then I'm spending time learning about it. One thing that
has gotten me a little confused is how the RCX brick uses memory. I
keep reading about the memory usage being: 16k ROM, 512 bytes of SRAM
for firmware, and 32k of SRAM for user code and other applications.
Yet I also have run across mention of only 6k being available for user
code, the rest of the 32k being full of firmware. So which is it?
Being an embedded systems programmer myself, 16k of ROM seems ample
for the OS required, does the Mindstorms OS also spill over into that
much of the 32k of SRAM?
Thanks.
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Message has 1 Reply:
 | | Re: RIS memory usage
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| (...) The RCX has a 64k address space. Here is how it is split up: Addr Len Usage 0000 4000 On-chip ROM 4000 4000 Reserved (for on-chip ROM of other chip models) 8000 7b80 External RAM fb80 0200 Reserved (for on-chip RAM of other chip models) fd80 (...) (26 years ago, 8-Apr-99, to lugnet.robotics)
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