TMS320F28379D: Can not trigger other epwm interrupt when use CLA trigger for one of epwm on MATLAB

HI everyone

I use matlab 2022a. test on F28379D Launchpad

I use CLA task trigger source for epwm1 for toggle led, it's ok

but when i use C28x_Hardware_Interrupt block trigger epwm6 interrupt, cla_subsystem not operation, led not toggle.

i remove the interrupt vector of epwm6 cla_subsystem operation, led toggle.

when i use matlab 2021a i can use CLA and epwm interrupt. How to fix this issue

Answer 1

[Ravi]

Hi Dang Thai Son,

I see the same issue. As a workaround you can use CLA task number 2 for CLA task trigger. If there is a need to use only the task number 1, then you need to clear the epmwx interrupt with a custom code. You can use the system outputs block inside CLA_Task_1 subsystem and the following code:

EALLOW;
EPwm1Regs.ETCLR.bit.INT = 1;
EDIS;

I hope this answer resolves the issue you are facing.

Thanks,

Ravi