LIS3DH高通滤波器不工作

在工作中我使用LIS3DH加速度计来检测身体运动。它配置为+/- 2 gs，每秒50个样本，带有流式FIFO。水印可以很好地确定FIFO何时需要清空。


该规范说明所有三个XY和Z轴都可以使用CTRL_REG2（地址0x21）进行高通滤波，但文档并不完全清楚。我正在向滤波器寄存器写入0x11而没有运气。 HPM1-HPM0设置为1,0。截止频率位设置为0,0应该以每秒50个采样的速率提供1Hz截止频率。

希望有人有关于配置高通滤波器的文档，但我没有。或者有人成功实施了过滤器，可以告诉我他们使用了什么。
＃lis3dh-hpfilter



以下为原文




At work I am using the LIS3DH accelerometer to detect body motion.  It is configured for +/-2 gs, 50 samples per second, with Streaming FIFO.  The watermark works fine for determining when the FIFO needs to be emptied.  


The specification says that all three XY&Z axis can be high-pass filtered using CTRL_REG2 (address 0x21), but documentation is not totally clear.  I'm writing 0x11 to the filter register with no luck.   HPM1-HPM0 are set to 1, 0.  The cut off frequency bits are set to 0, 0 which should give a 1Hz cutoff at 50 samples per second.   

Hopefully someone has documentation on configuring the high-pass filter that I do not.  Or someone has successfully implemented the filter and can tell me what they used.  
#lis3dh-hpfilter