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DRV2605: DRV2605 Not Work with External PWM.

Part Number: DRV2605

Hi Sir,

We are using PWM Mode, external PWM frequency=20khz  duty cycle:90%

Buy cannot active motor, here are registers setting as below,

Would you pls kindly help to check if something wrong? thanks.



//Mode (Address: 0x01) = 0x03
//Real-Time Playback Input (Address: 0x02) = 0x00
//Waveform Sequencer 0x04  = 0x04
//Waveform Sequencer 0x05  = 0x00
//Overdrive Time Offset (Address: 0x0D) = 0x00
//Sustain Time Offset, Positive (Address: 0x0E) = 0x00
//Sustain Time Offset, Negative (Address: 0x0F) = 0x00
//Brake Time Offset (Address: 0x10)  = 0x00                
//Rated Voltage (Address: 0x16) = 0x53
//Overdrive Clamp Voltage (Address: 0x17) = 0xA0
//Feedback Control (Address: 0x1A) = 0xB6
//Control1 (Address: 0x1B) = 0x93
//Control2 (Address: 0x1C) = 0xF5
//Control3 (Address: 0x1D) = 0x80
//LRA Resonance Period (Address: 0x22)= 0x04

Thanks, Ian.