[Simulink] I want to just switch two values with positive trigger

Question

Takatoshi Akamatsu 2022-10-5

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https://ww2.mathworks.cn/matlabcentral/answers/1817730-simulink-i-want-to-just-switch-two-values-with-positive-trigger

回答： Fangjun Jiang 2022-10-5

Hi,

I want to make a simple Simulink model, switching two values with positive trigger, as shown below.

How can I make it? I tried many things, but I could not.

# I want to use only HDL-compatible block.

Best,

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Answer 1

Fangjun Jiang 2022-10-5

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https://ww2.mathworks.cn/matlabcentral/answers/1817730-simulink-i-want-to-just-switch-two-values-with-positive-trigger#answer_1067245

Use the trig signal to trig a "triggered subsystem", the trigger type is "rising". Inside the subsystem is a "Not" logical block. Outside, feed the subsystem output to a "Unit Delay" block and then feed it to the input of the subsystem. Set the inital of "Unit Dela" to be 0.

All blocks are from HDL library.