how to generate hdl code for edge detection block in simulink

Answer 1

[Walter Roberson]

Serialize and Deserialize. See http://www.mathworks.com/help/hdlcoder/examples/using-ip-core-generation-workflow-sobel-edge-detection.html

[GOKUL GK]

please explain it for above edge detection block

[Walter Roberson]

If I understand correctly, there is one Edge Detection Block that can be configured for different detectors including Sobel and Canny. The link above shows an example of using a Serialize block to pass an array in to an Edge Detector block, and a Deserialize block to decode.

http://www.mathworks.com/matlabcentral/fileexchange/16855-edge-detection-algorithm-in-embedded-matlab

http://www.mathworks.com/help/hdlverifier/examples/sobel-edge-detection-algorithm-with-computer-vision-system-toolbox-1.html#zmw57dd0e3758

Unfortunately I do not have that product so I cannot open the models to find out exactly which blocks they used.

Answer 2

[Bharath Venkataraman]

The Vision HDL Toolbox has an Edge Detection block that is suitable for HDL code generation. That block takes in serial input, much like you would expect the FPGA or ASIC to do. I suggest using that block instead of the one from Computer Vision System Toolbox.