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AR# 52939

Vivado Lab Tools - "ERROR: [Labtools 27-147] and ERROR: [Labtools 27-146]"


What do the following error messages mean?

   "ERROR: [Labtools 27-147] cse_server: XSDB Master timed out."

   "ERROR: [Labtools 27-146] cse_client: API command [CseXsdb_getSlaveCount] failed."


This means that the clock connected to the CLK input of the ILA core is probably not running. You need to make sure that the clock signal connected to the CLK input is clean, free-running, and meets all timing constraints.

In 2012.4, the error message has being improved. Following is an example:

   "ERROR: [Labtools 27-1437] Failed to get a response from the Debug Core Hub on device XC7K325T (JTAG device index = 0) in user chain = 1."

   The Debug Core Hub has become unresponsive to requests for information. This could be due to a number of factors such as the clock signal connected to the debug core being slow or stopped or some other interruption in the communication path to the core.


   1) Verify that the clock signal connected to the debug core is clean and free-running.

   2) Verify that the clock connected to the debug core meets all timing constraints.

AR# 52939
Date Created 11/15/2012
Last Updated 03/28/2013
Status Active
Type General Article
  • Vivado Design Suite - 2012.1
  • Vivado Design Suite - 2012.2
  • Vivado Design Suite - 2012.3