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AR# 56367

LogiCORE IP Video Scaler v8.1 - Why does the Video Scaler test bench sometimes fail with a timeout error after the first frame?

Description

Why does the Video Scaler test bench sometimes fail with a timeout error after the first frame?  

###
 2325000 : [AXI-S Video Master 1] STARTED
@ 2325000 : [AXI-S Video Slave  1] STARTED
@ 20325245000 : [AXI-S Video Master 1] TIMEOUT ERROR : TREADY has not asserted for       10000 cycles .. Terminating the test....

Solution

Depending on the configuration of the core, the clock speeds and the input resolution, the time between frames may vary.  

The default timeout in the test bench is not long enough in some cases.

You can work around this by modifying the timeout value in the Test Bench on line 200 of the axi4s_video_mst.v file to be the size of the largest supported frame in order to avoid the time out situation.


From:
 

timeout        = 10000;

To:
 

timeout        = (4096*4096);

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
54540 LogiCORE IP Video Scaler - Release Notes and Known Issues for Vivado 2013.1 and newer tool versions N/A N/A
AR# 56367
Date Created 06/12/2013
Last Updated 08/26/2014
Status Active
Type General Article
IP
  • Video Scaler