Hi
I use the STEVAL-SPIN3204 board to control a motor without datasheet.
It's a 10 pole pairs motor with 36V nominal voltage, and Hall sensors. It's the only parameters I have.
I use the STSW-SPIN3204 software with IAR IDE.
My final application needs very slow speeds (10-60rpm).
I can't use the Motor Workbench because I need to use Hall sensors.
I use the current control because if I use the voltage control, the board detects instantly an overcurrent.
With the STSW-SPIN3204, my motor achieves to spin, but the motor's speed isn't my target speed (target: 200rpm, motor peed: 800rpm).
If I send a target higher than 800rpm, this speed is achieved, but for speeds lower than 800rpm, the speed is limited to 800rpm.
How can I change this "threshold"?
Is it with the LF Timer prescaler?
An other thing: How can I increase the torque? When my motor is spinning, I can stop it with one finger, and the motor don't try to send more current. (I'm not limited by the power supply)
I tried with others motors, and the result is the same. So I think it's a bad software configuration.
Thanks for your help.
