About joe2

joe2 · 2014-03-27

Posted on March 28, 2014 at 00:53Hi,I successfully used the 3.4 Library to drive a small brushless motor using an STM32F103 and 3 current shunt resistors. My new design uses the STM32F303CB and onboard PGA for current sensing. This new 303 version d...

joe2 · 2013-08-24

Posted on August 24, 2013 at 20:33Hi,I am trying to get sensorless FOC working on a 14 pole surface mounted outrunner motor. It has a Rs of 0.35 Ohm and Ls of 1.0 mH.I installed Motor Library v3.0 and applied the IFN003V1 patch. I set all of the boa...

joe2 · 2014-03-31

Posted on March 31, 2014 at 20:10Thank you, changing the execution rate to 2 pwm periods did the trick. Now both motors spin simultaneously.

joe2 · 2014-03-30

Posted on March 30, 2014 at 22:53Another question: now that I have 2 motors running I cannot figure out how to get them to run simultaneously. I can start motor 1, but it stops as soon as I start motor 2. I can start motor 2 but it stops as soon as ...

joe2 · 2014-03-29

Posted on March 29, 2014 at 20:03Now that I have it working, I have another question. When I used the STM32F103, I was able to go to much higher pwm values which worked well for my small motor. I found that 32 - 36 kHz worked well.With SMT32F303 I c...

joe2 · 2014-03-28

Posted on March 29, 2014 at 04:58Found the bug that was at fault. I have selected PB5 as the motor 2 phase 3 low side pwm, but the library sets the alternate function register incorrectly. The alternate function for TIM8 on PB5 is 3.GPIOB_AFRL is se...

joe2 · 2013-08-28

Posted on August 29, 2013 at 05:34Hi Gigi,Would an oscilloscope capture of the current shunt op amp outputs be ok?It definitely seems to be a problem in the feedback from the motor. If I enable open loop FOC the motor spins smoothly. I do notice tha...

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FOC SDK 3.4 with STM32F303CB

STEVAL-IFN003V1

Re: FOC SDK 3.4 with STM32F303CB

Re: FOC SDK 3.4 with STM32F303CB

Re: FOC SDK 3.4 with STM32F303CB

Re: FOC SDK 3.4 with STM32F303CB

Re: STEVAL-IFN003V1