AR# 41135

描述

解决方案

This is a known bug in the Image Statistics v2.0 release that is fixed in the Image Statistics v3.0.

Expected Usage:

• Typically, you are expected to assert the READOUT flag, then wait for the DONE flag to come high.
• At this point, you can read out the statistical information.
• When you have completed the readout, you can deassert the READOUT.
• After this, the core enters the clear_rams phase, but due toa bug, the sum, pow, min, max, hifreq, lofreq,edge, and so on are not reset.

Workaround:

• Youcan work around this issue by waiting for another frame, for example, the core cycles through an acquisition => clear_rams transition.
• The signals in question will then transition to zero, and you can assert theREADOUT again and resume statistics collection.

Additional Information:

(Xilinx Answer 33748) - List of LogiCORE IP Image Statistics Release Notes and Known Issues.

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