TMS320F28075: valley switching

Hi Weilun,

The software is inside DigitalPower Software Development Kit (SDK)
www.ti.com/.../c2000ware-digitalpower-sdk

Also we have a TI design that contains more details on valley switching implementation as below:
www.ti.com/.../TIDM-1022

Regards,
Chen

Hi Weilun,

Can you check the CCS updates to see whether you can install the CCS C2000 package 4.2.7.0? This contains all the valley switching registers. Thanks.

Regards,
Chen

Which version of CCS are you using? I have tried on my end to use CCS 8.2 with 4.2.7 package and 18.1.4 C2800 compiler tool update without any problem.

Regards,

Chen

Hi wei lun,

Glad to hear it works. So is the problem caused by the the CCS version?

Regards,
Chen

Yes,I think the problem caused by the the CCS version.

Actually I want to find program about valley switching function by search register like VCAPCTL,DCFCTL in this project.

But I only find those messages  shown below.Is my idea correct?

Hi Wei lun,

The reason you cannot directly find the register is that we are using the driverlib function right now instead of bit field code. You can search for EPWM_O_VCAPCTL to replace VCAPCTL. In that case, you will see the function declaration in epwm.h.

Let's say if you want to set VCAPCTL.VCAPSTART , you have to check the function EPWM_startValleyCapture in the code.

Thanks.

Regards,
Chen