Forum Discussion

DMose2's avatar
DMose2
Icon for New Contributor rankNew Contributor
5 years ago

sharing access to the internal JTAG interface

I'm implementing Encryption in the JTAG secure mode as per AN556 in my design. I want to have access to the internal JTAG interface to be able to unlock / lock the JTAG interface for reprogramming t...
DMose2's avatar
DMose2
Icon for New Contributor rankNew Contributor
5 years ago

haven't heard from you....

The reason I'm asking is because my design already has 2 instances to the internal JTAG:

  1. JTAG UART
  2. NIOS debugger

So, there must be a way to share the internal JTAG with multiple entities.

Do you know of an application note that can help me?

Thanks