LIS2DH12数据速率ODR的频率容差？

你好，
我在高分辨率模式下将数据速率（ODR）设置为400Hz，并启用LIS2SH12的FIFO流模式。
对于3分钟的测量测试，我除了接收每个轴的72000（400 * 60 * 3）数据，但是我只收到大约68220个数据，其数据速率约为379Hz（约5％容差）。
我还测试了另外两个LIS2DH12样品，一个是378Hz，另一个是399Hz。
因此，我认为数据速率具有容忍度。
我的问题是：
1由于数据表仅提供
“典型”值，任何应用笔记都描述了数据速率的容差？
2是否可以通过寄存器设置校准数据速率？
非常感谢你。

#lis2dh12 #odr #fifo #data-rate



以下为原文




Hello,
I set the data rate (ODR) to 400Hz in high resolution mode with fifo stream mode enable of LIS2SH12.
For 3 minutes measurement test, I excepted to receive 72000 (400 * 60 * 3) data for each axis, however I only received around 68220 number of data, which the data rate is around 379Hz (~5% tolerance).
I also tested with two other LIS2DH12 samples, one is 378Hz, and the other one is 399Hz.
Therefore I suppose the data rate has tolerance with it.
Myy question are:
1 Since the data sheet only provide the
'typical' value, any application note describe the tolerance of data rate?

2 Is it possible to calibrate the data rate with register setting?


Thank you very much.

#lis2dh12 #odr #fifo #data-rate