加速器的输出采样频率不能超过1000Hz,超过1000hz可能会从FIFO,DMP中输出,应该是这样的。
Note:
The accelerometer output rate is 1kHz. This means that for a Sample Rate greater than 1kHz,the same accelerometer sample may be output to the FIFO, DMP, and sensor registers more than once. 这是数据手册中的注意事项,看看对你有帮助不!