Which pins should I measure with oscilloscope to obtain the signal for DAC-A and DAC-B on TI F28379D LaunchPad?

I am trying to follow the instruction in the following link with MATLAB R2022a and TI Delfino F28379D LaunchPad.

https://www.mathworks.com/help/releases/R2022a/supportpkg/texasinstrumentsc2000/ug/cmpss-example.html

 

However, I am unable to observe the sine waves on the board with an oscilloscope after building and running the model. I have tried measuring between pin 32 (DAC1), 31 (DAC2) and 72 (DAC3) and ground but cannot detect any signals. Am I measuring the incorrect pins?

Answer 1

[MathWorks Support Team]

According to the user manual of F28379D Launchpad, the DAC-A Pin is pin 30 instead of pin 32 (note that pin10 in J3 is pin30 in general). Please refer to image and the link below:

https://www.ti.com/lit/ug/sprui77c/sprui77c.pdf?ts=1666986117389

When measuring between pin 30 (DAC-A) and pin 22 (GND), you would be able to observe the sinewave on the oscilloscope with a horizontal scale of 500ms/div and vertical scale of 20.0V/div.