TMS320F28379D: DRV3201-Q1 , TMS320F28379D , Motor Driver , ePWM

Saurabh Khobe

Part Number: TMS320F28379D
Other Parts Discussed in Thread: DRV3201-Q1, CONTROLSUITE, MOTORWARE

Hi All,

I am working with BLDC - Block commutation control using DRV3201-Q1 and TMS320F28379D.

I am facing issue regarding DRV3201 that I can not turn off the both the GHSx and GLSx at the same time. As I am using block commutation i need to turn off gate (MOSFET) High and Low at same time.

I can use force trip function from TMS320F28379D to make ePWMxA and ePWMxB OFF But its not reflecting on the output of DRV3201.

Note :

I am using 6-pwm mode in DRV3201.

Configuration through SPI for DRV: SPIHAL_WriteRegister(CFG0,0x38);
SPIHAL_WriteRegister(CFG1,0x84);

Need help.

Anyone suggest is it possible to make both GHSx and GLSx OFF in DRV3201 ?

Thank you.

over 4 years ago

0 Yanming Luo over 4 years ago

TI__Guru** 109730 points

From C2000 side, you may enable Trip-Zone to connect to ePWM module, and then set the OST bit of TZFRC to force both EPMWA and EPWMB to turn off.
DRV3201 should have a bit to put all MOSFETs in the Hi-Z state to turn off it, please refer to the datasheet of DRV3201.

0 Saurabh Khobe over 4 years ago in reply to Yanming Luo

Intellectual 425 points

Hi Yanming Luo ,

Thanks for your reply.

As I mentioned above , I can Trip off EPWM1A and EPWM1B on MCU side But when I am giving these signal to DRV it is making One MOSFET high and Other MOSFET low , As I am using block commutation one pair of MOSFET should be off at given time for one Phase of BLDC.

Any suggestion will help.

Thanks.

0 Yanming Luo over 4 years ago in reply to Saurabh Khobe

TI__Guru** 109730 points

You have to take a look at the datasheet of DRV3201 to set the related control register. In this C2000 forum, we may provide support on the reference design on C2000 in such controlSUITE, motorWare or MotorControl SDK.

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28379D: DRV3201-Q1 , TMS320F28379D , Motor Driver , ePWM