[news.eclipse.dsdp.rtsc] Re: Issue with declaring structure variable and

[dave russo <d-russo@xxxxxx>]

The following Carr module generates an error because we require 
_explicit_ initialization of all instance configs.

Although it may be possible to initialize these in the module's .xs 
file, it requires accessing a structure we don't yet document.  So, 
instance configs should be _fully_ initialized in the .xdc file.

module CArr {

instance:
    config int iarr[2];    // fails: due to lack of initial values
}

The following alternatives also fail:
    config int iarr[2] = [0];      // fails: too few initial values
and
    config int iarr[2] = [0,0,0];  // fails: too many initial values

But the following variants do work:
    config int iarr[2] = [0,0];    // works: just the right number
and
    config int iarr[] = [0, 0];    // works: same as above

So, there is really no reason to ever explicitly place a dimension in 
the array.  Doing so only makes it clearer to the reader how many 
initial values appear in the initializer.


Ravindranath wrote:
> Hi,
>
> I have to declare a variable of type array/structure in my xdc file 
> under instance label so that the <module>_Params structure will contain 
> the structure/array variable.
>
> But xdc is giving error saying that element should be statically 
> initialized.   Can anybody know how to initialize the structure 
> variable/array declared under instance label with some default values?  
> I am using xdctools_3_15_00_50.
>
> Regards,
> Ravindranath Andela