HDL Coder no clock signals detected
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Hello,
I was wondering how to set clock signals for MATLAB code. I noticed that the demo (corner detection found in HDL coder demos image processing) had a clock signal: clk | BUFGP | 1701
as well as an asynchronous control signal:
reset | IBUF | 861
Hence, I was wondering how to set these in my own design. I am not using simulink and want to find out how to set clock in MATLAB code.
Thank you, Alvin
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Answers (1)
Tim McBrayer
on 22 Apr 2013
MATLAB code is untimed, sequential code. HDL Coder synthesizes this code to a cycle-accurate HDL implementation. The clock and reset signals are not present in the original MATLAB code in any form. They are synthetic signals, added to the user design.
2 Comments
Tim McBrayer
on 23 Apr 2013
Any state data, such as persistent MATLAB variables or a delay object instance, indicates state. When there is state in the design, HDL Coder infers a clock and reset signal.
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