CCS/C2000WARE-MOTORCONTROL-SDK: pwm_pin_allocation

makan

Part Number: C2000WARE-MOTORCONTROL-SDK

Tool/software: Code Composer Studio

Dear friends
the following is pwm gpio part of motorcontrolsdk for f280049c hal.c . My application is 3 phase pmsm motor and utilizes 3 half bridge classic inverter. In my hardware which is going to use F280049C control card, pin number 49 (gpio-00) is allocated to lower switch in leg. also pin number 51 (gpio-01) is allocated to upper switch. I have modified the code as following:

// EPWM1A
GPIO_setMasterCore(1, GPIO_CORE_CPU1);
GPIO_setPinConfig(GPIO_0_EPWM1A);
GPIO_setDirectionMode(1, GPIO_DIR_MODE_OUT);
GPIO_setPadConfig(1, GPIO_PIN_TYPE_STD);

// EPWM1B
GPIO_setMasterCore(0, GPIO_CORE_CPU1);
GPIO_setPinConfig(GPIO_1_EPWM1B);
GPIO_setDirectionMode(0, GPIO_DIR_MODE_OUT);
GPIO_setPadConfig(0, GPIO_PIN_TYPE_STD);

are these correct modifications considering my hardware?

Thanks for your help

Regards

Mak

over 5 years ago

0 Yanming Luo over 5 years ago

TI__Guru** 115420 points

It's correct for GPIO assignment, but you need to change the PWM handles in HAL_init(), and set up PWM register in HAL_setupPWMs() in hal.c also.

Please be careful of PWM register configuration since you use GPI00 for low side and GPIO-1 for high side, that's different from the default configuration of the lab example in motor control SDK.

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.

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

0 makan over 5 years ago in reply to Yanming Luo

Intellectual 390 points

Thank you very much Yanming for quick reply

I will analyze your feedback with extra materials given and then come back again

Kind regards

Mak

0 makan over 5 years ago in reply to Yanming Luo

Intellectual 390 points

Yanming

according to hal.c, gpio-13 (pin number 59 in controlcard) is for "FAULT" pin, is it correct?

Which pin is the default for "ENABLE" for switches?

Thanks for your help

Mak

0 makan over 5 years ago in reply to Yanming Luo

Intellectual 390 points

I will be waiting for your feedback Yanming

Regards

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CCS/C2000WARE-MOTORCONTROL-SDK: pwm_pin_allocation