DRV8301-69M-KIT : how to use SW1 and SW2 with the "Speed Control" poti?

Robin Probst

Prodigy 20 points

Other Parts Discussed in Thread: DRV8301-69M-KIT, MOTORWARE

Hello together,

I´m a german Student, so sorry for my english writing ;)

My question, how can I use the Buttons SW1 and SW2 in combination with the "Speed Control"-Potentiometer?

I must regulate the BLDC-Motor without any Computer.

Actually we use the DRV8301-69M-KIT with SpinTAC-Motion.

Do you have any idea for a solution?

Best regards

over 7 years ago

0 Daniel Mueller over 7 years ago

Intellectual 905 points

hi, a tip, take a look at this -> C:\ti\motorware\motorware_1_01_00_18\docs\tutorials -> motorware_hal_tutorial
There are two chapter:

6.3. Adding a Potentiometer Read
6.5. Reading Push Buttons

I had the same problem.

0 Rick Duncan over 7 years ago in reply to Daniel Mueller

TI__Guru** 114905 points

Hi Daniel,

Thanks for providing this information.

0 Daniel Mueller over 7 years ago

Intellectual 905 points

ps: the iq potentiometer value goes from 0 to 1 which means from 0 to 1000rpm, you have to adjust this value for your max motor speed.

I solved it this way: max_rpm_pot=(((USER_IQ_FULL_SCALE_FREQ_Hz*120)/(USER_MOTOR_NUM_POLE_PAIRS*2))/1000);
gPotentiometer =_IQmpy(HAL_readPotentiometerData(halHandle),_IQ(max_rpm_pot));
or you can enter a number.

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DRV8301-69M-KIT : how to use SW1 and SW2 with the "Speed Control" poti?