- Open a blank Simulink model, go the configuration parameters (Ctrl+E) > Hardware Implementation > Select the board you are using (i.e. F28379D LaunchPad)
- Drag a DAC block in your model from the Simulink library browser, under Embedded Coder Support Package for TI C2000 > F2837xD
- Drag a sine wave source block from Simulink source blocks, double-click on the sine wave and select "Sample based" for the sine type, set the Amplitude to 2047.5, Bias 2047.5, Samples per period: 100, Sample time: .01 --> this will generate a 1Hz sine wave with 100 points oscillating from 0 to 4095, which is the range that the DAC wants.
- Connect the Sine wave to the DAC
- Make sure your board is connected to your computer and generate code for the model (Ctrl+B)
- Put a scope on the DAC pin (Pin 30 on connector J3 is using the Launchpad) and enjoy watching the sine wave oscillate
- Accept this answer and post your model so others can benefit from it :-), go to this page and rate the package 5 stars, feel free to share with the rest of the world how easy it was to run your first model with our TI C2000 support package.
How can I create sinus wave by using TI C2000 launchpad and simulink?
19 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I am new to microcontrollers. I want to create sinus wave and read it with oscilloscope by using F28379D but I couldn't manage to do that. Which blocks should I use to do that?
Thanks.
0 commentaires
Réponse acceptée
Antonin
le 31 Oct 2018
Hello Batuhan,
8 commentaires
Ayesha
le 18 Fév 2024
@Antonin Hello,
I have designed MPC controller in simulink and I want to send the output of MPC controller to my real time device, and receive two input from device.
How can I configure F2837xD for the my configuration. Another quesyion is why you switched to sample based from time based configuration for sine wave and another question is whyd did you choosed Amplitude to 2047.5, Bias 2047.5?
Roshan EIE
le 13 Juin 2024
It is because it has a 12bit DAC and it can take values from 0- 2^12-1. 2^12 is 4096. 2047.5 comes from 4095/2. The sine wave generated by matlab is by default [-1,1]. A bias of 1 would make it [0,2]. Similary if we enter amplitude to be 4095 it will oscillate from [-2047.5,2047.5] but negative values should not be there hence the bias of 2047.5.
Plus de réponses (0)
Voir également
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!