TMS320F280049: High Resolution Phase Shift running in CLA

Mohamed Kamel

Part Number: TMS320F280049
Other Parts Discussed in Thread: C2000WARE-DIGITALPOWER-SDK, C2000WARE

Hello,

I am using TMS320F280049 for a design with a couple of half bridges. At any point in time, I have a reference leg, a leading leg, and a lagging leg. There is a control loop that adjusts the phase shift between the legs (PWMs). The phase shift can be either positive or negative relative to the reference. I could not find any reference examples on implementing the high resolution phase shift with leading or lagging phases.

Also, I wanted to run the phase shift through a control loop in CLA.

Thanks,
Mohamed

over 2 years ago

0 Lori Heustess over 2 years ago

TI__Guru* 90995 points

Hi Mohamed. I am looking into this and will respond back before end of Wednesday US time.

+1 Lori Heustess over 2 years ago in reply to Lori Heustess

TI__Guru* 90995 points

Hi Mohamed,

The software for https://www.ti.com/tool/TIDA-010054 in C2000WARE-DIGITALPOWER-SDK supports HR phase shift for both leading and lagging.

Design guide: https://www.ti.com/lit/pdf/tidues0

In the SDK the project is located here: C:\c2000ware_digital_power_sdk\solutions\tida_010054

Best regards

Lori

0 Ansong Qin over 2 years ago in reply to Lori Heustess

TI__Prodigy 70 points

Hi, Lori,

I have looked at the tida_010054 source code, and I have a question about the CLA code. According to C2000 documentation, CLA source code has to have *.cla file name that will invoke the CLA compiler. But in tida_010054 source code, I have not seen any *.cla file. Where is the CLA source code?

Thanks.

0 Lori Heustess over 2 years ago in reply to Ansong Qin

TI__Guru* 90995 points

Hi Ansong,

My apologies for the delay - I have been out of office. Let me check with my colleagues and see if I can locate an example specifically running on the CLA. The concept would be the same. Any ISR content moved to a CLA task.

Regards

Lori

0 Lori Heustess over 2 years ago in reply to Lori Heustess

TI__Guru* 90995 points

Hi Ansong, Unfortunately I have not been able to locate an example specifically executing on the CLA.

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TMS320F280049: High Resolution Phase Shift running in CLA