Hello,
i have the drv3201 board and want to move a bldc motor.
My problem is, that the driver writes after every change of the IHSx and ILSx signals undervoltage and VGS comparator into the status registers. If i reset the status registers after every step, the motor moves full speed.
I control the driver with pwm signals on the ILSx pins (pwm mode is active).
The IHSx are high or low.
The IHSx and ILSx correspond to the picture and depends on the status of the hallsensor.
At the moment cfg0 is 0xBF, cfg1 = 0xE0 and cfg3 = 0x00.
RSTN, Boost and CSM-pins are HIGH and DRVOFF is LOW.
In the safety manual stands:
PWM Mode (3-input operation) allows controlling all six gate drivers with only three PWM signals. The valid controls in PWM Mode are the IHSx inputs. The device derives the low side controls from the corresponding IHSx signals.
But when i change the pwm to the IHSx-pins the motor dont move.
What am i doing wrong?