LAUNCHXL-F28379D: How to configure 24 PWM's with MATLAB embedded coder support package using GPIO Out?

Hi Jiahui,

We need help from MathWorks team to help on this. I have requested the MathWork engineer to provide the help. Please expect response by tomorrow.

Thanks & Regards,

Santosh

Hi Santosh，

Ok， thanks！

Best regards，

Vivian

Hi Jiahui,

I am not able to extract the attached rar file. I have attached the screenshot of the epwm configuration parameters for GPIO pin assignment from PWM1A to PWM12B.

If you still face any issues, you may contact MathWorks technical support as we need more information to understand the issue better. When we have a support ticket, our internal process enables us to involve right people on this issue and we will immediately get in touch with you to understand the case in more detailed way. 

Please connect to us at:

https://www.mathworks.com/support.html 

Best Regards,

Ram Alla | MathWorks

Hi Vivian,

Just to add to Ram's post, here is the configuration for PWM which allows to configure all 24 channels. Here is the screen-shot.

Thanks & Regards,

Santosh

Hi Santosh

Hi Vivian,

I have sent reminder for follow-up question to Ram @ MathWorks. We should expect response by tomorrow.

Thanks & Regards,

Santosh

Hi Santosh，

Thanks for your quick reply! We'll wait!

Best regards，

Vivian

Vivian,

MathWorks team and I had a call today. We looked at the issue. It looks like it is conflicting with UART. You may have to use other pin for PWM10B and above. Please take a look at the datasheet for other GPIO pins that can be used.

Thanks & Regards,

Santosh

Hi Santosh，

I forwarded your answer to the customer. The customer hasn't replied for a long time.

Thank you for your help

Regards,

Vivian

Hi Santosh，

The customer finally replied，

Thank you for your continuous support.
I have gone through the answer, What I understood is try avoiding GPIO19 and is equal to GPIO164 i.e. EPWM10B.
I am able to get PWM from EPWM 1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B, 5A, 5B, 6A, 6B, 8A,8B, 9A, 10A, 12A.
I am not able to find the pin numbers of other EPWMS in texas launchpad F28379D, those are EPWM's 7A,7B, 9B, 11A,11B, 12B and their corresponding GPIO's (12/157),(13/158),(17/162),(20/165),(21/166),(23,168) respectively. Please find the attachment of pin number source for F28379D as well.
Able to get total of 17 EPWM's only.
Please support to access the total of 24 EPWM's or at least 18 EPWM's

Thanks！

Regards,

Vivian

Jiahui,

I do not see the attachment. Can you please attache it again?

Hi Santosh，

Attachment is a picture, I upload it again. Can you see it?

Thanks！

Regards,

Jiahui

Hi,

Yes, I can see the image. Let me review the list and get back to you later today.

Thanks & Regards,

Santosh

Jiahui,

Looks like these pins are not brought out on Launchpad. You will need to use controlCARD.

Thanks & Regards,

Santosh

Hi Santosh，

Thanks for your reply.

Customer reply “according to Santhosh TI launchpad F28379D is not capable of providing 24 ePWM's and the pins are not accessible.
But the datasheet of F28379D describes 24EPWM's. Please verify and confirm. As a student, we bought the launchpad that it fulfills our requirement at low cost. So, please kindly update any possible way.”

Regards,

Jiahui