TMS320F280049C: What is the Maximum Frequency that I can Run a CLA task, being triggered from EPWM1 Interrupt?

Hi Chandana,

Can you try enabling both CPU1 interrupt(with GPIO toggling) and CLA task(toggling another GPIO) for the same EPWM1 interrupt and check if you are sill facing the issue? This will help to check if the EPWM is the problem or CLA.

Alternatively, you can also do a SW trigger of the CLA from the CPU1 interrupt service routine to see if the CLA is running at the same rate at which the interrupt is occurring.

You can refer to the C2000ware example: cla_ex4_pwm_control to cross check the configurations.

Regards,
Praveen

hi Praveen,

We have tried both the workarounds that you have suggested.

But these didn't solve my problem,

The example code I am working on was taken from C200ware itself.

So could you please tell me what else I need to check or am I missing something?

Chandana,

Is it possible for you to send us a reference code with the modifications that you made on top of the c2000ware example for us to understand the scenario better?

cla_ex4_pwm_control.7z

Hi,

Attaching the project file for your refrence

Hi Praveen,

thanks for the reply.

When I directly wrote into register I was able to achieve the frequency I wanted.

Currently I am trying to load the CLA task to 50% of it's execution period, to make sure I am achieving the Frequency I desire.

Will update the results on that soon. I want to keep the thread open till then.

Thanks,

Chandana

Sure Chandana. Let us know how it goes 

Glad to know that it got resolved