How do I convert an integer into a binary vector?

Asked by Justin Mellor on 8 Aug 2014

Latest activity Commented on by dpb on 11 Aug 2014

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I would like to use the General CRC Generator to calculate a CRC based on 32 bit integer value that is going to be transmitted as serial (ARINC 429 data) using Simulink Real-Time. My 32 bit integer is computed every frame based on a number of dynamic input values. The problem is that the CRC block requires a binary column vector as its input and so I need to create this from my 32 bit integer value. Is there a block that does this? Surely I don't need to pick off each bit individually to create a vector??

Justin

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Answer by dpb on 8 Aug 2014

v=dec2bin(intval)-'0';

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Answer by Justin Mellor on 11 Aug 2014

Thanks - I am doing this with a Simulink model - I have tried putting this in a MATLAB function block, but get the following error:

Data 'y' (#38) is inferred as a variable size matrix, while its specified type is something else.

Is there an example that you can point me to that shows the General CRC generator block being used in a Simulink model where the input is a dynamically changing value (the example just shows an input vector defined as a constant).

Regards

Justin

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dpb on 11 Aug 2014

I've never seen a Simulink installation even, sorry...

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