TMS320F280049C: TMS320F28P550SG

Bhaskar gupta yelamarthi

Part Number: TMS320F280049C
Other Parts Discussed in Thread: TMS320F28P550SG, LAUNCHXL-F28P55X, SFRA

Tool/software:

I am planning to use TMS320F28P550SG this microcontroller.

My application is Bi-directional DC-DC synchronous buck/boost converter for battery test application. For this i got transfer function related to Iout/duty and the same transfer function used in MATLAB to design the compensator. In MATLAB using sisotool i obtained the 2-pole and 2-zero compensator. After that i multiplied with compensator and plant to get open loop trnafer function. From that transfer function i generated bode plot. The Phase margin obtained is around 62.5 Degres and Cross over frequency is 2.5kHZ. So can i use the same frequency value for microcontroller’s control loop (ISR) frequency and ADC sample rate frequency.

over 1 year ago

0 Gus Martinez over 1 year ago

TI__Mastermind 30541 points

Hi, I am sorry, can you please clarify your question? What help is needed?

0 Bhaskar gupta yelamarthi over 1 year ago in reply to Gus Martinez

Prodigy 40 points

Hello,

I am planning to use TMS320F28P550SG this microcontroller. My application is Bi-directional DC-DC synchronous buck/boost converter for battery test application. I want to get the ISR frequency and ADC sample rate. How to calculate it.

0 Gus Martinez over 1 year ago in reply to Bhaskar gupta yelamarthi

TI__Mastermind 30541 points

No, you should not set the ISR/ADC frequency to the cutoff frequency. In your Matlab sim, did you assume a given sampling frequency to derive the 2p2z compensator parameters? If so, this is the frequency you should use when running on the micro.

0 Bhaskar gupta yelamarthi over 1 year ago in reply to Gus Martinez

Prodigy 40 points

Hello Martinez,

We are planning to buy LAUNCHXL-F28P55X. From this, can I design my ISR frequency using a software frequency response analyzer? For this I need any additional software to be installed.

0 Gus Martinez over 1 year ago in reply to Bhaskar gupta yelamarthi

TI__Mastermind 30541 points

Sure, you can use the C2000 SFRA tools and source code to develop your controller. SFRA is supported on the P55x device. You can learn more about SFRA here:

https://www.ti.com/video/4059874181001?keyMatch=sfra&tisearch=universal_search&f-videos=Video,Video%20series

https://www.ti.com/tool/SFRA

0 Bhaskar gupta yelamarthi over 1 year ago in reply to Gus Martinez

Prodigy 40 points

Hello Martinez,

Thank you for the links. I think it will be useful. if any doubts are there. I will get back to you.

Thanks

Bhaskar

0 Bhaskar gupta yelamarthi over 1 year ago in reply to Bhaskar gupta yelamarthi

Prodigy 40 points

Hello Martinez,

TMS320F28P550SG for this microcontroller, i am using JTAG as a connector for programming. For this, i need a programmable connector with a debugger features. Please suggest any product related to this.

My main Aim is C2000. I am implementing a control technique, and I need to transfer this control technique to my microcontroller in my control board. For that, i need programmable connector that is suitable for JTAG and has features of debugging also.

Thanks and Regards

Y Bhaskar S S Gupta

0 Gus Martinez over 1 year ago in reply to Bhaskar gupta yelamarthi

TI__Mastermind 30541 points

Hi,

Please start a new E2E thread when inquiring about a new topic.

Having said that, this app note describes & compares multiple JTAG debug probes which you can use with C2000 MCUs:

https://www.ti.com/lit/pdf/spracf0

Please note that for our evaluation boards, a JTAG emulator is normally embedded on the board. This make is easy for you to get started with your evaluation.

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F280049C: TMS320F28P550SG