TMS320F280049: SDFM

Rajeswari kagitha

Part Number: TMS320F280049
Other Parts Discussed in Thread: C2000WARE

We are using TMS320F280049(100 pin) board, in this we are going to use SDFM for measuring current( for motor control) I have question is SDFM has ADC nternally Or we connect it Externally.

over 5 years ago

0 Vasudha Bhadoria over 5 years ago

TI__Genius 10845 points

Hi,

The SD modulator needs to be connected externally and SDFM is used as digital filter for SD modulator bit-stream output.

Thanks

Vasudha

0 Rajeswari kagitha over 5 years ago in reply to Vasudha Bhadoria

Intellectual 710 points

Hi sir, but SDFM is an input pin, where we get that's output .

0 Vasudha Bhadoria over 5 years ago in reply to Rajeswari kagitha

TI__Genius 10845 points

Hi,

Yes, the output of external sigma delta ADC is input for SDFM module.

Thanks

Vasudha

0 Rajeswari kagitha over 5 years ago in reply to Vasudha Bhadoria

Intellectual 710 points

Ok sir, where we get the ouput of SDFM?

0 Vasudha Bhadoria over 5 years ago in reply to Rajeswari kagitha

TI__Genius 10845 points

Hi,

The output of each filter available in SDFM module is available in SDDATx registers namely SDDATA1, SDDATA2, SDDATA3 and SDDATA4. Refer to device TRM and SDFM examples present under C2000Ware for more details on SDFM features.

Thanks

Vasudha

0 Rajeswari kagitha over 5 years ago in reply to Vasudha Bhadoria

Intellectual 710 points

Ok sir thank you..

0 Rajeswari kagitha over 5 years ago in reply to Vasudha Bhadoria

Intellectual 710 points

Is there application note showing SDFM usage for 280049 CPU? I think in olden days it should be like what you said.but now a days Normally they provide all parts needed into CPU .

0 Rajeswari kagitha over 5 years ago in reply to Vasudha Bhadoria

Intellectual 710 points

Is there application note showing SDFM usage for 280049 CPU? We are going to use SDFM in our project , is it need to connect sd module externally? because now a days cpu s are Delvelped all the required parts internally

0 Vasudha Bhadoria over 5 years ago in reply to Rajeswari kagitha

TI__Genius 10845 points

Hi,

The SDFM examples are present in latest C2000Ware package at location: C2000Ware_3_01_00_00\driverlib\f28004x\examples\sdfm

KAGITHA VENKATESWARARAO Rajeswari kagitha said:
We are going to use SDFM in our project , is it need to connect sd module externally? because now a days cpu s are Delvelped all the required parts internally

I think I have already replied to this question in above posts. The SDFM module is a digital filter module which filters the sigma delta ADC ouput. The sigma delta ADC needs to be connected externally. The sigma delta ADC needs to be connected externally even in the evaluation boards like controlcard and launchpads.

Thanks

Vasudha

0 Rajeswari kagitha over 5 years ago in reply to Vasudha Bhadoria

Intellectual 710 points

Hii sir/madam

You already replied to my question, sd module is conncetd externally to sdfm, but i have question how the sd module conncetd? Is there any app notes related to that connections.. We are using sdfm in motor control..

0 Vasudha Bhadoria over 5 years ago in reply to Rajeswari kagitha

TI__Genius 10845 points

Hi,

You can refer to SDFM examples present in C2000Ware. These examples also have connection related details as part of example description. Also, you can refer to device datasheet for checking SDFM related pin details.

Thanks

Vasudha

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TMS320F280049: SDFM