CCS/LAUNCHXL-F28069M: Encoder array data export to GUI Composer with PLOT or CVS file?

Hi

To supplement my effort to understand this.

I have a test array code:

#define GRAPH_SIZE 300
volatile _iq Graph_QEP1[GRAPH_SIZE];
volatile _iq Graph_QEP2[GRAPH_SIZE];
volatile _iq Graph_EST3[GRAPH_SIZE];

... and in main().....just to experiment with GUI Composer V2.

//---------------------------Populate data for test.
for (int i=0; i<GRAPH_SIZE; i++)
{
Graph_QEP1[i]=_IQ24(((float)(i)/10.0));
Graph_QEP2[i]=_IQ24((((float)(100-i))/10.0));
}
which is binded to linechart widget in GUI Composer V2 via testarray.gui (attached)
I do get linear ramp between QEP1 and QEP2 based on value in the linechart properties

myXDS|Graph_QEP1
myXDS|Graph_QEP2

It seems the array data do passed to the linchart widget which is good, but the number needs scaling.

However when I change value to

myXDS|Graph_QEP1.$q24

myXDS|Graph_QEP2.$q24
It fails to work along with red circle and white cross.

I tried this value below.

myXDS|Graph_QEP1/16777216
myXDS|Graph_QEP2/16777216
It fails to work along with red circle and white cross.

I tried this value below.

myXDS| 0.00000596 * Graph_QEP1

myXDS|0.00000596 * Graph_QEP2

It fails to work along with red circle and white cross.

What I have done wrong here, is there way to scale the number to Q24?

document.addEventListener('gc-databind-ready', function() 

{
    /* 
	*   Add custom computed value databindings here, using the following method:
	*
    *   function gc.databind.registry.bind(targetBinding, modelBinding, [getter], [setter]);
	*
	*   param targetBinding - single binding string or expression, or array of binding strings for multi-way binding.
	*   param modelBinding - single binding string or expression, or array of binding strings for multi-way binding.
	*   param getter - (optional) - custom getter function for computing the targetBinding value(s) based on modelBinding value(s).
	*   param setter - (optional) - custom setter function for computing the modelBinding value(s) based on targetBinding value(s).
    */

	    gc.databind.registry.bind(
	        'widget.ti_widget_linegraph.series_0_values',       // A numberbox labeled OUTPUT. MUST preceded the widget name with "widget."
	        "Graph_QEP1",                                       // A numberbox labeled INPUT.  MUST preceded the widget name with "widget."
            function(value)
            {
                var i;
                //var data2 = []; data2.length = value.length;  // One Method.
                var data2 = new Array(value.length); 
                for (i=0; i<value.length; i++)
                {
                    data2[i]=value[i]/(Math.pow(2, 24));
                }
                //templateObj.$.ti_widget_linegraph.series_2_values = data2;
                templateObj.$.ti_widget_linegraph.series_0_values = data2;
                return (value);
            }
        ); 
        
        	gc.databind.registry.bind(
	        'widget.ti_widget_linegraph.series_1_values',       // A numberbox labeled OUTPUT. MUST preceded the widget name with "widget."
	        "Graph_QEP2",                                       // A numberbox labeled INPUT.  MUST preceded the widget name with "widget."
            function(value)
            {
                var i;
                for (i=0; i<value.length; i++)
                {
                    value[i]=value[i]/(Math.pow(2, 24));
                }
                templateObj.$.ti_widget_linegraph.series_1_values = value;
                return (value);
            }
        ); 
});

Not sure what the difference between

gc.databind.registry.bind
and
gc.databind.registry.getBinding

Is here documentation/example details to cover this?

Anyway above code  is the working solution to modify array data before it goes to linegraph.

Please confirm:

targetBinding = Mean GUI object end?
modelBinding = Mean MCU object end (global variable)?, why it named as 'model'

Hello,

Sorry for the delay. I have forwarded this issue to our GUI Composer expert. He is currently away but will return Tuesday so I hope to have an update for you then.

Thanks

ki

Any progress?