Re: Finding how much DSP56001 RAM is installed via program??

Article View: comp.sys.next.programmer

Article #800

Back to comp.sys.next.programmer Previous Next

#800

From: william burchill
Date: Wed, 26 Aug 1992 18:10

16 lines
1104 bytes

I see a problem.  You are reading back immediately after writing out.  This 
can allow bus capacitance to appear as a valid memory location.
I suggest you write out a pair of different test patterns.  Since memory
is organized into even lengths, when it comes time to read back for compares,
your first read (at the start of memory) will be different from your last 
write (at the end of memory).
Do all writes first.
Do all reads last.
Use an even # of test patterns.
#addr0	patt1
#addr1	patt2
#addr2	patt1
#addr3	patt2
#addr4	patt1
etc.

Technical Details

Message-ID: <1992Aug26.181006.6623@ee.ubc.ca>

Path:

arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!wupost!usc!sol.ctr.columbia.edu!destroyer!ubc-cs!fs1.ee.ubc.ca!williamb

References: <1992Aug26.060638.10407@ee.ubc.ca> <17fb61INN572@agate.berkeley.edu>

Show Full Headers

Complete Article Headers

Newsgroups: comp.sys.next.programmer,comp.dsp
Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!wupost!usc!sol.ctr.columbia.edu!destroyer!ubc-cs!fs1.ee.ubc.ca!williamb
From: williamb@ee.ubc.ca (william burchill)
Subject: Re: Finding how much DSP56001 RAM is installed via program??
Message-ID: <1992Aug26.181006.6623@ee.ubc.ca>
Keywords: DSP, 56001, NeXT
Organization: University of BC, Electrical Engineering
References: <1992Aug26.060638.10407@ee.ubc.ca> <17fb61INN572@agate.berkeley.edu>
Date: Wed, 26 Aug 1992 18:10:06 GMT
Lines: 17

Reply to Parent Message