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  3. User defined data registers in JTAG

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User defined data registers in JTAG

Leo1008
Leo1008 over 16 years ago

 Hi all,

I have just started reading about jtag boundary scan architecture and need to implement it
in an application where jtag port is used to read and write to register banks.
For this purpose, I need to add two user defined data registers ( one for reading and writing each).
I want to know how to customize the architecture in order to insert the above said user defined registers .
 
Also, I need to define two user defined instructions for the same purpose of sending and receiving data from register banks. From my understanding, I presume that can be done by defining these instructions in the BSDL file? Is my understanding correct?

Thanks.

Insiya

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  • Andy Hughes
    Andy Hughes over 16 years ago

     Insiya,

     

       My first question would be, are you planning on implementing this jtag architecture on your own or are you using RTL Compiler to insert it for you?

     

    Andy Hughes

    Core Comp Architect

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  • ahnnelopez
    ahnnelopez over 16 years ago

     Also curious and want to know more about this, just need it for my study...

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