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DRV8711: 驱动57步进电机振动大,达不到用DRV8711EVM测试的效果。

Part Number: DRV8711
Other Parts Discussed in Thread: , CSD18531Q5A

同样的配置放在DRV8711EVM的测试板上震动就小,我用的mos管是AO4826,感应电阻0.05Ω,请问与PCB的线的粗细有关吗,B2LS和BISENP的线由于没注意,这两根线画的有点细。

配置如下:

SPI_DRV8711_Write(0x00,0x0E21);//E25细分32 调整最高位是改变死区时间
SPI_DRV8711_Write(0x01,0x01AB);//0x170
SPI_DRV8711_Write(0x02,0x0000);//低8位是改变TOFF时间
SPI_DRV8711_Write(0x03,0x0000);//低8位改变TBLANK时间
SPI_DRV8711_Write(0x04,0x0304);//低8位设置TDECAY时间
SPI_DRV8711_Write(0x05,0x0F32);
SPI_DRV8711_Write(0x06,0x00A0);//
SPI_DRV8711_Write(0x07,0x0000);