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  3. AR# 52741: Video Timing Controller (VTC) v5.01.a - Why does the VTC Generation always produce 720p output timing signals at startup when the AXI4-Lite interface is used?

AR# 52741

Video Timing Controller (VTC) v5.01.a - Why does the VTC Generation always produce 720p output timing signals at startup when the AXI4-Lite interface is used?

Description

Why does the VTC Generation always produce 720p output timing signals at startup when the AXI4-Lite interface is used?

Solution

This usually happens if the REG_UPDATE bit in the CONTROL register is not set to '1' after changing the VTC Generator timing parameters.

Setting the REG_UPDATE bit to '1' tells the Video Timing Controller that the register settings have been changed. 

See the Video Timing Controller Product Guide PG016 for more information.
http://www.xilinx.com/support/documentation/ipaudiovideoimageprocess_processing_ef-di-vid-timing.htm

Please see (Xilinx Answer 32754) for a detailed list of LogiCORE Video Timing Controller Release Notes and Known Issues.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
32754 LogiCORE IP Video Timing Controller - Release Notes and Known Issues N/A N/A
54541 LogiCORE IP Video Timing Controller - Release Notes and Known Issues for Vivado 2013.1 and newer tool versions N/A N/A
AR# 52741
Date 08/12/2014
Status Active
Type General Article
IP
  • Video Timing Controller