TMS320F28377D: TMS320F28377D

vadim piskun

Part Number: TMS320F28377D

Hi,

How can I plot FFT of a variable or watch expression? When I right click on any expression i have only one option to graph, in time domain. From tools it plot empty graphs.

How do i select expression to plot from tools menu?

thanks vadim

2 months ago

0 Omer Amir 2 months ago

TI__Mastermind 29810 points

Hello Vadim,

If you select the drop-down as you show in the screenshot and select the FFT plot you want to use, you should get a window which prompts you to enter in configuration for the plot. A similar window would pop up for the graph tool:

0 vadim piskun 2 months ago in reply to Omer Amir

Expert 2220 points

Hi Amir,

Thanks for your support! In the last window where should i tell to plot adcBuf1

thanks vadim

0 Omer Amir 2 months ago in reply to vadim piskun

TI__Mastermind 29810 points

Hi Vadim,

You should be able to just use the variable name, this should work for something like an array (although you will have to configure it to read all the array values if that's what you want). If you're just trying to read the ADC results, you can have a global temporary variable for the result which is read by the graph tool (the variable must be global for the graph tool to read it).

0 vadim piskun 2 months ago in reply to Omer Amir

Expert 2220 points

Hi Amir,

Do you have any documentation with an example ? From your response i do not see how this variable is selected.

thanks vadim

0 Omer Amir 2 months ago in reply to vadim piskun

TI__Mastermind 29810 points

You can find documentation for the Graph Tool here, although you should be able to just type in the name of the variable into the Start Address field. Did this not work for you?

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TMS320F28377D: TMS320F28377D