suspicious RAM problems - mvo

suspicious RAM problems - mvo

Post by Mark » Fri, 01 Aug 2003 04:50:15



Hi group,

My company is doubting my applications; there are happening strange things
in the field. It's about terminal running a state-machine on an old H8/500
processor. The problems seems to be weird and like this.

When we write software in the terminal's flash it runs differently from
terminals that have another software-version pre-loaded. In both situations
the previous software has to be overloaded fully (well, thats what is
desired). A lot of people are 'against' us saying the previous version
affects the new version.

A guy made a loading sequence with functions copied to (and running from)
RAM (still don't get how you do that trick, with the source-code in front of
me but whatever). But I want to clear the RAM chip (512K) totally, first.

Any tips on how to check the size of the RAM-chip? (the tricky-part:) We use
hardware with both 256K and 512K RAM.

Some tips would be appreciated very much!

Best regards,
M/\RK

--

M/\RK

 
 
 

suspicious RAM problems - mvo

Post by Chia Ah Tee, Josep » Fri, 01 Aug 2003 10:17:10


Please try to download RAM testing or RAM checking at WWW.pcworld.com or www.cnet.com or
ftp://garbo.uwasa.fi

Joseph

-----Original Message-----

Posted At: Thursday, July 31, 2003 4:02 AM
Posted To: periphs
Conversation: suspicious RAM problems - mvo
Subject: suspicious RAM problems - mvo

Hi group,

My company is doubting my applications; there are happening strange things
in the field. It's about terminal running a state-machine on an old H8/500
processor. The problems seems to be weird and like this.

When we write software in the terminal's flash it runs differently from
terminals that have another software-version pre-loaded. In both situations
the previous software has to be overloaded fully (well, thats what is
desired). A lot of people are 'against' us saying the previous version
affects the new version.

A guy made a loading sequence with functions copied to (and running from)
RAM (still don't get how you do that trick, with the source-code in front of
me but whatever). But I want to clear the RAM chip (512K) totally, first.

Any tips on how to check the size of the RAM-chip? (the tricky-part:) We use
hardware with both 256K and 512K RAM.

Some tips would be appreciated very much!

Best regards,
M/\RK

--

M/\RK


 
 
 

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