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723791_zh-CN
723791_zh-CN
该设备有一份飞思卡尔勘误表文档，其中列出了两个已知问题。勘误表第 2 项：这是否意味着任何/所有 I2C 总线流量都会导致磁力计的噪音问题，无论总线上的哪个设备被寻址？另外，"变通 "的 "快 "是什么意思，如何知道自己是否 "够快"。该设备中的磁强计是否可以在 I2C 总线上使用，尤其是在与其他设备共享总线时——我很难看出情况如何。感谢您在这个问题上的见解和帮助。干杯
嗨，安迪、
在回答您的第一个问题时，正确地说，噪音问题只出现在 FXOS8700 的磁力计读数上，而且只有在 AFE 和 I2 C 信号同时激活时才会出现。即使在同一个设备中，但读取加速度计数据不会导致这种噪音问题。
至于第二个问题，"快速 "的本意是一个时序值，指的是在接收到传感器的中断后立即读取测量值，然后立即完成 I2C 通信。
我希望这能澄清这个问题。
何塞
恩智浦半导体
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