UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

cancel
Showing results for 
Search instead for 
Did you mean: 
Explorer
Explorer
5,403 Views
Registered: ‎06-19-2015

cannot access jtag-dp: invalid ack value

Hi,

 

Am using XC7Z045FFG900 device, Vivado and SDk version 2015.1. Using Vivado Hardware manager and SDK am able configure the PL properly. In SDK, while entering into debug mode am getting this error:

 

unexpected error while launching program:error while running ps_7 init method

" cannot access jtag-dp: invalid ack value (0x00, expected = 0x02)"

    

   Please send the solution

Debug_2.png
0 Kudos
4 Replies
Xilinx Employee
Xilinx Employee
5,388 Views
Registered: ‎07-23-2012

Re: cannot access jtag-dp: invalid ack value

Can you please check the boot mode and ensure that it is in JTAG mode? By the way are you using GDB or system debugger?
-----------------------------------------------------------------------------------------------
Please mark the post as "Accept as solution" if the information provided answers your query/resolves your issue.

Give Kudos to a post which you think is helpful.
0 Kudos
Explorer
Explorer
5,365 Views
Registered: ‎06-19-2015

Re: cannot access jtag-dp: invalid ack value

Hi 

 

 

 

 

 

Debug_GDB.png
Debug_SystemDebugger.png
0 Kudos
Xilinx Employee
Xilinx Employee
5,284 Views
Registered: ‎07-23-2012

Re: cannot access jtag-dp: invalid ack value

It is mandatory to initialize PS through ps7_init (or FSBL) before you use PS/PL.

One quick way to determine whether the issue lies with ps7_init or not is to make use of ps7_init generated from the latest version of SDK.
-----------------------------------------------------------------------------------------------
Please mark the post as "Accept as solution" if the information provided answers your query/resolves your issue.

Give Kudos to a post which you think is helpful.
0 Kudos
Visitor btrainy
Visitor
717 Views
Registered: ‎08-08-2018

Re: cannot access jtag-dp: invalid ack value

Hi 

               I meet the same question!  can you give me some suggestion?微信图片_20181023153207.jpg

0 Kudos