Part Number:DRV8323R
My motor driver is implemented using the DRV8323RX+CSD88584Q5DC
In the application, a mismatch between the gate drive signal and the PWM signal is encountered, causing the motor to start desynchronizing.
The waveforms measured using a normal MOS driver IC are as follows: (CH1pwm waveform, CH2 drive waveform)
Then measure the output waveform and PWM waveform of the DRV8323RX:
The settings for the DRV8323RX in the program are:
SPI_ReadWriteByte(0x1000);
SPI_ReadWriteByte(0x1BFF);
SPI_ReadWriteByte(0x27FF);
SPI_ReadWriteByte(0x2D59);
SPI_ReadWriteByte(0x3203);
What is the reason for the abnormality of the drive signal? I never found the reason.