[Discuss-gnuradio] Increment / Decrement Button

Hi All;

 

I’m trying to implement an “Increment” button that when pressed, increments a variable.

This will be used to increment the tuned frequency by say 1 MHz every time it is pressed.

 

I tried a Variable Chooser, configured it as a button and gave it only one choice. The variable name was tune_inc.

For the default value I used “tune_inc”.

For the only choice I used “tune_inc+1e6”, hoping that every time I pressed the button the variable “tune_inc” would increment itself …

 

What I got was an error stating that the name “tune_inc” was not defined.

Am I going about his the wrong way ??

I have no clue how to write my own processing block to do this L

 

Thanks …

 

Bill