Hi Forum,
I needed to draw a real-time graph, whose X-axis should read from 2000 Mhz to 18000Mhz (stepping up by 100) and its Y axis to read from -20db to 100db (stepping up by 10) with grid facility on the screen while graph plotted in real time the data captured from the serial port.

I managed to create screen layout but cannot able to display the X and Y axis range as I intend to do, I am wondering if there anyone who can put me in the right direction or any tip to accomplish the task?
I will be much appreciated, any help in this area,
Thank you,