Why I get different data from 'to workspace' and 'scope'

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Shengnan Li 2016-6-16

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评论： Shengnan Li 2016-6-17

I have a switching signal, and a 'edge detector', try to count the pulses. The results from scope looks very good, the 'edge detector' catches all the pulses. I also connected the output of 'edge detector' to 'to workspace'. The data saved by 'to workspace' is not good any more. it loose a lot of impulses.

Can anyone help? Thanks,

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Answer 1

Azzi Abdelmalek 2016-6-16

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https://ww2.mathworks.cn/matlabcentral/answers/290403-why-i-get-different-data-from-to-workspace-and-scope#answer_225773

Decrease the sample time of your to worksapce block

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Shengnan Li 2016-6-17

Thanks for your answer. The output of the edge detector are needle impulses. I tried sample time=1us instead of inherited, it catches none of the impulses but zeros. I am wondering for a impulse output how to save the data? Thanks.

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