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Jon Titus
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Re: Part IV: Fundamentals of Digital Debugging
Jon Titus   1/19/2012 5:32:28 PM
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Q:  Pleaes define "bit bashing" for this newbie.  Thx.

 

A:  A UART accepts a byte and transmits it automatically in the selected format and at the selected bit rate.  Bit bashing means you select a standard output pin and use software to change its state from a logic 1 to a logic 0 and vice versa to create the proper sequence of bits with the proper bit periods (times) for a serial transmission.  It takes a bit of doing, but if you don't have an available UART, it's an alternate approach. You might find some "bit bashing" UART code examples with a Google search.



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