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Altera_Forum
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17 years ago

jtag interface from user aplication

Hi, I'm trying to access the jtag port inside the fpga with the alt_jtag_atlantic block (also used in the jtag_uart for the niosII processor). I need access to the jtag port from a custom...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hey guys, I was attempting to follow these instructions, and you will have to forgive me, as I am software guy...

So I downloaded the sample aplication, and planned to test it out by writing to my device through the uart jtag, and seeing it recieved using the NIOS IDE debugger.

Unfortunately, I think you can only use 1 device at a time, so I have tried closing out the debugger after programming (to my fpga's ram) and I still could not recieve any text using the sample application.

This lead me to believe that maybe my app wasn't running after I closed out the NIOS IDE, so I preprogrammed the ram with my flashed and redownloaded the image. This also did not work.

Anyone have some tips on what I might be doing wrong? Thanks.