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DRV8308EVM: FGOUT输出的精度

许小兵
Prodigy 20 points
Part Number: DRV8308EVM

使用8308驱动电机，使用AEDR-9930编码器采集转速值误差在0.08%，同时用FGOUT信号计算转速误差在1.5%，请问是什么原因，FGOUT的精度是多少？