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how to write a memory bist module?

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jjww110

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mem bist howto

writ in hand or generate by tool?
3x in advance!
 

mopengfei

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can you tell me what is the memory bist module?
you mean it is memory module which used in verfiacation envirnment (simulation )
----------------------
if you want to write a simulative-module --
please use a Verilog OR vhdl --but you must grip the behavior of your memory
 

ami

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Hi,
usually, bist_insertion is done by script(perl,..) on the netlist.
you need to write 2 scripts to do the following things on your netlist:
1. bist_wrapper insert:
search RAM in netlist
insert bist_wrapper
2. bist_wrapper join
join alll bist_wrapper and connect them to you bist_controller.

Your can search Internet fow bist doc, and write script yourself.

rgrds
 

jjww110

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hi,mopengfei
write a module to do meory built in test .
 

anjali

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ami's words are correct.
 

moneychaser

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If you want to write the actual BIST logic from scratch (i.e. not use someone elses code), the you need to web search for the "March G" algorithm. Look for a paper by AJ van de Goor. Most March tests are for bit oriented memory, so also look for his paper about word-orientated March tests.
 

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