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[news.eclipse.dsdp.rtsc] Re: Issue with declaring structure variable and array under instance label in xdc fi
dave, you said

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.


please let me know how to initialize arrays and structures in params through xs file.

dave russo wrote:

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