Get array size in Simulink
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Thomas LE DIOURON
il 18 Ott 2012
Commentato: Shankar Santhosh
il 26 Feb 2021
Hello,
I would like in Simulink have a block with an array as parameter. This array could have various size. In this code, I want to extract a specific element.
I tried to do this with a selector block to select the desired element and a size "Matlab function" to avoid an out of bounds conflicts.
However, the selector block needs to specify the input port size (wich is not always the same). Moreover, for example, for an array [10 12 17 20], how to extract the 4 from the 1x4 result of the size command?
Any idea?
1 Commento
Azzi Abdelmalek
il 18 Ott 2012
Modificato: Azzi Abdelmalek
il 18 Ott 2012
Can you specify where your array is coming from. Is it an output of another block or it's just an input to other blocks. Is your array size changing during simulation?
Risposta accettata
Sachin Ganjare
il 18 Ott 2012
You can use 'Width' block from simulink library.
Hope it helps
1 Commento
Shankar Santhosh
il 26 Feb 2021
Is there any alternate method to find the size than using 'width' block?
Because I have a requirement to create the model in Targetlink and not all Simulink blocksets are supported(especially this width block).
Più risposte (2)
javad sh
il 22 Apr 2015
I also used this method and found it useful\
I am reading from a serial port and i needed to know the length of massage that i am reading
now the problem that i have is this block will overflow if it become more than 255 what can we do when we have more than 255 byte to analysis
thank you for reply
fazareh
1 Commento
Ali Bars Gunduz
il 12 Ott 2018
You can use demux block to divide your array into 255 element arrays and compute each arrays lengths
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