reVISION Getting Started Guide 2018.2
1. Introduction	2. Overview	3. Software Tools and System Requirements	4. Design File Hierarchy
5. Installation and Operating Instructions	6. Tool Flow Tutorials	7. Run the Application	8. Platform Details
9. Known Issues and Limitations		10. Additional References

9. Known Issues and Limitations

9.1 Known Issues

SDSoC accelerator code runs very slowly in pure software implementation when Debug configuration is used.

Solution: Set project build configurations to Release which sets sdsoc compiler to optimize most (-O3).
The following error message is shown when compiling the SDx project:

WARNING: [DMAnalysis 83-4492] Unable to determine the memory attributes passed to _mapx_mat.data of function w1_xf_remap at /home/workspaces/ws_sv/stereo/src/stereo_sds.cpp:257, please use mem_attribute pragma to specify

Solution: The message is benign and can be ignored

Do not connect a DisplayPort cable and HDMI Tx at the same time.
Make sure the DisplayPort or HDMI Tx cable is plugged in when you power on the board.
DP-to-HDMI adapters are not supported, see AR 67462
HDMI Rx:
- Does not support YUV 4:2:0 input.
- Does not support HDCP encrypted input.
- Does not support hotplug or dynamic resolution changes while the application is running.
The provided image signal processor (ISP) pipeline does not include any auto algorithms. The IMX274, gamma, and color correction controls have to be adjusted manually based on the surrounding environment.
The optical_flow live IO sample does not have a software implementation of the algorithm, only the hardware optimized implementation is available.
SDSoC does not support “Estimate Performance” for the xfopenCV library and in general for all the C++ templates (the part of Performance Estimation flow not yet supported is the estimate of software performance for function templates). Once the HLS estimate of HW resources pops up, the Ethernet P2P communication process between the SDSoC GUI and the board stalls forever and no error message is displayed.

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