CCS/TMS320F280041: GUI over SCI

Luis Alfonso Fernandez Serantes

Part Number: TMS320F280041
Other Parts Discussed in Thread: ENERGIA

Tool/software: Code Composer Studio

Hello,

I have done some programming of the F280041 for reading some ADC inputs (sine waves) and setting some PWM. Until now, I was controlling it with a GUI from the GUI composer and connected over the debug probe XDS110.

After a while using it and debugging some errors, now I want to read faster signals... so I have the issue that the update rate of the XDS110 is around 200ms, thus I decide to try to make a GUI through UART. I have seen the tutorials at the GUI composer, but they are for MSP chips... When using the F280041 I don´t really know how to proceed... Could someone help me, please?

- How should the data be sent?

- What messages need to be sent and how to select them in the GUI?

- How to read a variable from the GUI to the µC?

Thank you very much,

Luis

over 5 years ago

0 AartiG over 5 years ago

TI__Guru**** 173310 points

Luis,

We do not have a UART transport example tailored for F28x but you may use the MSP one as a reference.

Basically your target code would need to control when data is sent. The data can be sent as JSON formatted data or in a custom format. If the data is sent as JSON formatted data, the GUI Composer application can be created in a similar manner to creating one with global variables. If you decide to send custom data, then you would need to add a custom codec, which is a piece of javascript code to parse the incoming data and create objects which you can then bind to GUI Composer widgets.

Here are some related threads for reference:

https://e2e.ti.com/support/tools/ccs/f/81/t/788050

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/765370

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/865735

Hope this helps.

0 Luis Alfonso Fernandez Serantes over 5 years ago in reply to AartiG

Prodigy 170 points

Thanks a lot for the info. I was also thinking to do it in that way.

One further thing, how is the library called or where I can find the JSON library?

BR,

Luis

0 Luis Alfonso Fernandez Serantes over 5 years ago in reply to AartiG

Prodigy 170 points

Thanks a lot for the info. I was also thinking to do it in that way.

One further thing, how is the library called or where I can find the JSON library?

BR,

Luis

0 AartiG over 5 years ago in reply to Luis Alfonso Fernandez Serantes

TI__Guru**** 173310 points

The demos we provide use Energia framework and JSON library that comes with Energia. Besides that, we do not have a reference for a JSON library, but you can try searching online for a third-party C library.

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CCS/TMS320F280041: GUI over SCI