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Jtag implementation with spi

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mail2mahesh123@gmail.com

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Hi all,

I am using LM3S9B96 microcontroller for my project. In My project we implemented JTAG interface with GPIO's and its working fine. Using this jtag i am able to

transfer 1MB of data in 1 min to ML605. To improve the data rate we are planning to implement JTAG interface with SPI. Is it possible to implement JTAG with

SPI?. If so how? Please provide me code if any body implemented.

Thanks & Regards,

Mah Kon
 

Is it possible to implement JTAG with SPI?
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Yes. The TMS related part of the protocol needs still to be implemented through bit-banging. You need to switch the JTAG interface pins between GPIO and dedicated SPI mode. I guess, it's possible with your processor.
 

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