Accessing an externally defined array's elements in the generated code

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Macko
Macko 2013-1-15
Hi,
I need to define an interface signal to my model, that will actually get data from the second element of an external uint16 array. My problem is that I have no idea how to specify this...
What I woold like to achive is something like this:
mod_Y.out1 = myArray[1];
where myArray is a 10-elements array, defined in another module.
Any suggestion is more than welcome! Many thanks in advance!

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回答（1 个）

TAB
TAB 2013-1-15
Create a poiter to you data in your code.
uint16 *myArrayPtr = &array[1];
Now in your model, for the signal which read this array element, set name of signal to myArrayPtr and its the storage class to ImportedExternPointer.
In the generated code this signal will be generated as extern pointer
extern uint16 *myArrayPtr;
So this will return the value of array[1] when being read.
mod_Y.out1 = *myArrayPtr;
  2 个评论
Macko
Macko 2013-1-15
Thanks, Tab! However, this will return the value of myArray[0] instead of myArray[1].
TAB
TAB 2013-1-16
We are initializing pointer with the address of array[1]. So offcourse pointer will give the value of array[1].

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