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   comp.sys.ibm.ps2.hardware      Discussing IBM PS/2 hardware      42,985 messages   

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   Message 42,183 of 42,985   
   RickE to Christian Holzapfel   
   Re: POSitively confused   
   16 Oct 23 06:07:45   
   
   From: ekblaw@vnet.ibm.com   
      
   On Monday, October 16, 2023 at 4:58:24 AM UTC-4, Christian Holzapfel wrote:   
      
   > I started looking for a proper 100 MHz capable, multi-channel logic analyzer   
   like the HP 16700 series to capture the initialization sequence directly on   
   the bus, but those machines all look either dead or incomplete and still very   
   expensive, if    
   available at all in my old world.    
   > Any suggestions for an alternative?    
      
   Sadly, no.  About 25 years ago, it was possible to pick up a Biomation logic   
   analyzer for a relatively good price (around USD1000), those days are long   
   gone, and finding a Biomation AT ALL these days requires arduous searching.    
   One might get lucky with    
   a herd of 4-channel digital scopes that have external triggers that actually   
   work properly (many don't), but you would need a lot of luck.  Your best bet   
   is likely to find/make a friend with someone in the technical services   
   department of a well-equipped    
   university, you might be able to come into a lab and use one of their logic   
   analyzers with some kind words and a bit of handwaving.  I don't know of any   
   makerspaces with logic analyzers, but maybe they exist -- or maybe one of the   
   makers in the community    
   knows of a way to get access to a logic analyzer at their day job.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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