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Andy Neil
03/04/13 04:00
Read: 1030 times
Basingstoke
Uk


 
#189536 - You *need* a proper external reset generator!
Responding to: Rohan Dey's previous message
Rohan Dey said:
What I meant was if I reset the uC externally then the thing starts working. By just powering the 2051 uC it does not work.

Exactly!

So what you need is a proper external reset generator to ensure that your chip gets a proper reset at power-up.

Such a circuit need only be a single 3-pin device - looking just like a transistor.

http://www.8052.com/faqs/119931

Andy Neil said:
You omitted to mention that in your cross-post

Rohan Dey said:
I figured that out after posting in the Keil forum


If you're going to post the same question on multiple forums, it behoves you to keep them all up-to-date...



List of 9 messages in thread
TopicAuthorDate
89C2051 not booting up      Rohan Dey      03/04/13 02:29      
   What you want and what you need        Oliver Sedlacek      03/04/13 03:13      
   cross-post      Andy Neil      03/04/13 03:22      
   Reset Circuit      Rohan Dey      03/04/13 03:38      
      You *need* a proper external reset generator!      Andy Neil      03/04/13 04:00      
         RC reset circuit works      Rohan Dey      03/04/13 05:41      
            it "works" (sic)      Andy Neil      03/04/13 05:54      
      A 2051 is not 4K      Jim Granville      03/04/13 04:32      
         Thanks for the solution      Rohan Dey      03/04/13 05:37      

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