清空筛选条件
清空筛选条件

Get array size in Simulink

207 次查看（过去 30 天）
Thomas LE DIOURON
Thomas LE DIOURON 2012-10-18
评论： Shankar Santhosh 2021-2-26
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 个评论
Azzi Abdelmalek
Azzi Abdelmalek 2012-10-18
编辑：Azzi Abdelmalek 2012-10-18
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?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Sachin Ganjare
Sachin Ganjare 2012-10-18
You can use 'Width' block from simulink library.
Hope it helps
  1 个评论
Shankar Santhosh
Shankar Santhosh 2021-2-26
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).

请先登录，再进行评论。

更多回答（2 个）

Thomas LE DIOURON
Thomas LE DIOURON 2012-10-18
Thanks for this answer. With the help of this block and the "select rows" block, I have all that needed.
javad sh
javad sh 2015-4-22
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 个评论
Ali Bars Gunduz
Ali Bars Gunduz 2018-10-12
You can use demux block to divide your array into 255 element arrays and compute each arrays lengths

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Simulink Environment Customization 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by