Forum Discussion
Altera_Forum
Honored Contributor
21 years agoDude, where are my JTAG pins
Hi, To my surprise, after creating a Nios-II system using SOPC builder and specifying 'level1' for the 'JTAG debug module', I see no JTAG pins on the symbol when I return to the...
Altera_Forum
Honored Contributor
16 years agoThanks Jake
Unfortunately I have thoroughly looked at these documents and I do not feel that they are pointing me in the right direction. From what I can see the only usefull simulation advice in these documents refers to either at an sopc level (the sopc functionality on its own not as part of a bigger design) or physically exercising the design in the actual hardware. What I am after is some way to drive the (invisible) Jtag pins from the device top-level (with the sopc block buried within the device) for the purpose of simple software independant sopc register writes / reads during an RTL simulation. This is required as part of our system testing (and follows a standard design flow). I assume there is some method of doing this by using the RTL testbench, a tcl script, or a combination of the two. The trouble is I cannot find any information on this. Using command windows like system console is fine for testing the physical hardware implementation. However I cannot find a way to do this under RTL simulation conditions (I have looked at the PLI, but it is not supported for the sopc Jtag UART). I am sure the information I need exists somewhere but I cannot find this in any of the multiple searches that I have done. Please advise. Thanks, Winston. :)