Error accessing Swi_Param / Swi.Params statically defined in .cfg file (xdc.services.intern.xsr.Value$Obj): not an Instance)

Scott,

I'm not too sure if I'm using the right terminology here, but you can't assign a new Swi.Params to a global variable.  The new Semaphore.Params doesn't actually create a Swi instance by itself. You need to call Swi.create() and assign it to a global variable.

Have you tried using the graphical interface to create a Semaphore? It will create something like this in your .cfg file:

.cfg:

var swi0Params = new Swi.Params();
swi0Params.instance.name = "swi0";
swi0Params.priority = -1;
Program.global.swi0 = Swi.create("&yourSwiFunction", swi0Params);

.c:

Then you can call Swi_post() in your .c file if you #include <xdc/cfg/global.h>:

Swi_post(swi0);

Hi Tom,
Thanks for looking at this.

I have done exactly (mostly) as shown in your posting:
.cfg:

var swi0Params = new Swi.Params();
swi0Params.instance.name = "swi0";
swi0Params.priority = 10;
Program.global.swi0 = Swi.create("&yourSwiFunction", swi0Params);
.c:

Then you can call Swi_post() in your .c file if you #include <xdc/cfg/global.h>:

Swi_post(swi0);

I CAN do this with no problem, but EACH TIME before I call Swi_post(swi0) I want to pass in an argument to my function "yourSwiFunction" by way of the swi0Params structure. e.g
swi0Params.arg0 = 2; // this line causes the problem
Swi_post(swi0);

The build process error is:

js: "C:/ti/xdctools_3_30_05_60_core/packages/xdc/cfg/Main.xs", line 48: XDC runtime error: Program.global.swiParams2 (of type class xdc.services.intern.xsr.Value$Obj): not an Instance

Am I using this incorrectly? I mean is is ok to set the args in swi0Params each time prior to calling Swi_post(swi0)?

-Scott

Thanks Sasha. That makes sense to me now. Only problem is that this is too slow for me to do in my Hwi, so after all that I will just set a global var within my hwi that the swi will inspect.

-Scott