refresh_hw_device : invalid vector<T> subscript

[zaid786]

Hardware manager of vivado 2016.2 , I get this error message after a resfresh device command:

refresh_hw_device [lindex [get_hw_devices] 0]
invalid vector<T> subscript

and hardware window get empty (no more server and device shown).

Any idea ??

Thanks a lot

[arpansur]

Hi @zaid786,

Can you try reducing JTAG frequency and check again?

[pligroup]

I am facing the same problem. Everything worked fine before and then it came all of a sudden.

I've tried to reduce the frequency of the JTAG but no the problem it still there.

Can anyone help?

[dpaul24]

I am getting this message from today!

Windows 7 Pro + Vivado 2017.2

The 4 ILA cores inside are being detected properly.

Any hints why this is happening?

[iguo]

Check if the JTAG frequency is higher than dbg_hub clock frequency. If it is, lowers it down.

Besides, do not connect multiple cable to PC at the same time.

[ceerqingting_ld]

hi，I got the same error with you,have you get any answer about it?

[kwame.kyere]

Hallo,

i am having similar issues with my ILA as well. 

Pls are there any known Solutions to this?

Thanks.

Best regards,

Kwame

[kwame.kyere]

Problem solved after reducing the ILA(JTAG) clock as mentioned previously in this thread.

Thanks.

[prevankar76]

I tried reducing the JTAG clock frequency as indicated, but did not help, still get the following error

refresh_hw_device [lindex [get_hw_devices] 0]
INFO: [Labtools 27-2302] Device xc7vx690t (JTAG device index = 0) is programmed with a design that has 1 ILA core(s).
invalid vector<T> subscript

There was no additional information in the error message to debug as well.

[kwame.kyere]

Hi , my question is how fast is your ILA clock? What is the width of your probe?

Perhaps you could try this: 

Workaround: if an eFuse programing error occurs, the user needs to manually execute refresh_hw_device to update all the device settings.

It was a suggestion from a similar thread. I havent tried it out myself.

Best regards