For those who are interested in some Apple-1 logic analyzer captures

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For those who are interested in some Apple-1 logic analyzer captures

I have been helping somone remotely work on their Mimeo.    It was a bit complicated sending videos back and forth, but then he mentioned he had access to a Saleae logic analyzer.   This made it faster and easier since we could send captures back and forth over email.  So in the process of troubleshooting his system, I created captures on a good Apple-1 mimeo using my Saleae logic pro 16.   I origionally bought it to troublshoot my Scelbi CPU board, and have only used it on a few ocassions with an Apple-1 or Mimeo, though it's very good for working on un-documented vintage keyboards to reverse engineer them.  

 

Anyway, here is a zip file of some of the captures with reset as the trigger.  The coolest one was for when we were troublshooting ram where I captured the DO on the RAM.  We got the system to get as far as Wozmon failing when the 6502 went to pop the return address out of the stack after trying to return from printing the initial '\' to the terminal section after reset.  

 

If you don't have an Saleae you can still dowload the eval software in read only mode to view the files.

 

http://myapplecomputer.net/LogicCaptures/Working%20Apple-1%20Saleae.zip