TMS320F280049C: TMS320F280049C

Karthikeyan R1

Prodigy 120 points

Part Number: TMS320F280049C
Other Parts Discussed in Thread: C2000WARE

Hello,

Is there a sample code which will guide me to read the Current value "ACS723 "of the motor.

Regards,

over 4 years ago

0 Karthikeyan R1 over 4 years ago

Prodigy 120 points

Im using C2000Ware_MotorControl_SDK_2_01_00_00 SDK for my project, so please guide me on how to read the AC current, with this current value I need to calculate the RMS value.

0 Karthikeyan R1 over 4 years ago

Prodigy 120 points

Hello TI,

Im already using C2000Ware_MotorControl_SDK_2_01_00_00 SDK for my project, so please guide me on how to read the AC current, with this current value I need to calculate the RMS value.

Thanks,

0 Yanming Luo over 4 years ago in reply to Karthikeyan R1

TI__Guru** 109810 points

No such sample code in MotorControlSDK. You just need to connect ACS723's output to an ADC pin of F280049C, and then convert the sampling result of ADC to the real current value. You must add a signal processing circuit to transfer the voltage range to 0~3.3V for F280049C.

0 Karthikeyan R1 over 4 years ago in reply to Yanming Luo

Prodigy 120 points

Thank you Yanming Luo, for explaining,

As im using the "C2000Ware_MotorControl_SDK_2_01_00_00", Scould you please explain me what all the proccess is happening in the ADC in "HAL_setupADCs (HAL_Handle handle)" API.

(i.e) (1) : What is the sampling rate?

(2): Why the ADC clock is set to 50 Mhz?

(3): Purpose of Sampling window?

(4):Purpose of ADC_setInterruptPulseMode()?

(5):Purpose of ADC_setInterruptSource()?

In addition, do you have a routine for calculating RMS?

Thanks,

0 Yanming Luo over 4 years ago in reply to Karthikeyan R1

TI__Guru** 109810 points

You don't need to change anything in the example labs except the linked ADC channel according to your own board. For a more detailed description of Q1~Q5, if you haven't had a chance to look at the workshop material, I think this will help demystify some of the terminology and architecture as well. Or you might take a look at the C2000Ware about the example of the peripherals drive as well.

https://training.ti.com/c2000-f28004x-microcontroller-workshop?context=1137791-1137780

Unfortunately, we don't have, the MotorControl just focuses on generic motor control algorithms without needing RMS value.

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TMS320F280049C: TMS320F280049C