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DS90UB913和914链接的I2C读写速率问题



DS90UB913和914链接没有问题,从914单个读写913寄存器和传感器寄存器均正常,但仍无法出图像,用示波器观察传感器端的SCL明显要比914端的SCL频率低的多,请问是不是要把两端的I2C都设置成一样,要怎样设置成Fast mode,需要的工作频率是400KHz。