DRV10983: ..DRV 10983 SPEED CONTROLLING

Hi,

you need to change the SpdCtrlMd bit in register 0x2B to a 1 and keep the overdrive bit as 0.

Regards,

Michael W.

am making SpdCtrlMd bit in register 0x2B to 1 then also my motor speed was not changing.In question only am said that 0x2B IN PWM mode.if i read my spdbuffer then am getting different speed values.but motor speed was constant.

                                thank you sir

Hi,

What PWM duty cycle, PWM frequency and voltage level are you using? Have you tried applying 100% duty cycle?

Regards,

Michael

Am applying 50% duty cycle, pwm frequency 10kHz,voltage level am applying 22v(In datasheet they are mentioned 22 v supply for eeprom write).am not applying  100% duty cycle

NOTE: if am applying  below 10% dutycycle my motor was not rotating.In I2C Mode am loading  SpeedCtrl1 0x00 and SpeedCtrl2 0x80 so presently speed is zero so motor was not moving till now ok.......

but if am loading SpeedCtrl1 register with 0x01  also motor was rotating with 120(rpm).if am loading 0xFF also its rotating with same rpm(120).

so can i need to change any acceleration parameters.