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  1. Xilinx - All Programmable
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  3. AR# 46438: LogiCORE Video Scaler v3.0, v4.0, v5.0 - Why does the Video Scaler start producing outputs lines earlier than expected when using the cropping feature?

AR# 46438

LogiCORE Video Scaler v3.0, v4.0, v5.0 - Why does the Video Scaler start producing outputs lines earlier than expected when using the cropping feature?

Description

Why does the Video Scaler start producing outputs lines earlier than expected when using the cropping feature?

Solution

This is a known issue with Video Scaler v3.0, v4.0, and v5.0 that is to be fixed in a future version.

The problem occurs when the start line for the cropped section of the active area is a number that falls between the Frame Reset and the falling edge of VBLANK.

This issue is also addressed in the Video Scaler v4.0 Rev4 patch. To obtain the patch, see (Xilinx Answer 41488).

This issue is also addressed in the Video Scaler v5.0 Rev2 patch. To obtain the patch, see (Xilinx Answer 45439).

For a detailed list of LogiCORE IP Video Scaler Release Notes and Known Issues, see (Xilinx Answer 31958).

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
45439 LogiCORE IP Video Scaler v5.0 - Patch Updates N/A N/A
41488 LogiCORE IP Video Scaler v4.0 - Patch Updates for the Video Scaler N/A N/A
31985 10.1 PAR - "WARNING: Route:436 - Unroutable situation detected for Architecture Wizard PLL2DCM core" N/A N/A

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
45439 LogiCORE IP Video Scaler v5.0 - Patch Updates N/A N/A
41488 LogiCORE IP Video Scaler v4.0 - Patch Updates for the Video Scaler N/A N/A
AR# 46438
Date 10/22/2014
Status Active
Type General Article
IP
  • Video Scaler