Simulink: uint8 vector to individual uint8s

Question

Andreas Nagl 2017-10-14

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https://ww2.mathworks.cn/matlabcentral/answers/361372-simulink-uint8-vector-to-individual-uint8s

评论： Andreas Nagl 2017-10-17

Hello,

I need to send 6 bytes via the Arduino TCP/IP Send block (be careful: the ethernet one, not the wifi one, which accepts uint8 vectors): The problem is that it only allows uint8.

However, I have a vector of 6 uint8 values, let's say [1,2,3,4,5,6] returned by my custom MATLAB function:

Now as you see, I have become rather desperate to bring my uint8s into a form suitable to send. Is there a way to use that Unbuffer properly? Or is it possible to somehow loop through the uints8 and pass them on to the block? Any other workaround?

Any help is appreciated - thanks a lot!

Best, Andreas

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Answer 1

David Ding 2017-10-17

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Hi Andreas,

I see that you are trying to serialize the vector of uint8s coming from a MATLAB Function block. In this case, instead of using the "unbuffer" block, consider using a "Byte Unpack" block from the "Utilities" folder of the Simulink Support Package for Arduino Hardware, found in the Simulink Library Browser. I have attached the image for your reference.

For more information about the "Byte Unpack" block in the Arduino Support Package, please refer below:

https://www.mathworks.com/help/releases/R2017b/supportpkg/arduino/ref/byteunpack.html

Sincerely,

David

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David Ding 2017-10-17

Hi Andreas,

That is exactly correct! The "Byte Unpack" block of the support package is especially designed to serialize data to communicate to the Arduino Hardware.

Thanks,

David

Andreas Nagl 2017-10-17