TMS320F28069M: InstaSpin Lab 1c

Divyesh Patel

Part Number: TMS320F28069M

Hello Dear,

I develop new hardware as per TI design reference but I have an issue at lab 2b.It's not identify the motor. That is why I tested lab 1C and the angle voltage and current waveform are terrible.

I cross verify my USER Parameter it's perfect like ADC and IQ current and voltage and POLE_HZ but the result I get is attached below.

If you see than the voltage and current are not as per the Inspin lab manual. Please suggest what should I have to correct in new hardware other than main User.h parameter because it is proper.

over 3 years ago

0 Ryan Ma over 3 years ago

TI__Mastermind 27736 points

Hi Divyesh,

The subject matter expert is out of office due to holiday break. Please expect response by 1st week of January. Sincere apology for inconvenience.

Regards,

Ryan Ma

0 Genatco over 3 years ago

Guru 56103 points

Hi Divyesh,

Check the MCU is running the correct XLTL frequency, PLL divider etc.. Looks like the PWM TBPRD clock module is running very slow, perhaps the pre-scale divisor could be set to high. Also CMPA load period could be set for very low count value, if up/down mode 1/2 the PWM clock frequency sets the period to get 50% duty cycle via CMPA.

0 Divyesh Patel over 3 years ago

Intellectual 835 points

The Lab 1b and 1c is not much matter if you get proper result on hardware with motor spin with lab 1c and 1b.

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TMS320F28069M: InstaSpin Lab 1c