ST意法半导体
直播中

欧竞仲

8年用户 189经验值
私信 关注
[问答]

如何配置LIS2DE12以支持ODR=5.3kHz?

大家好,


我正在开发用LIS2DE12加速度计分析振动的设备。
我遇到了传感器无法使用ORD = 5.3kHz的问题,它适用于所有其他ODR。
如何配置传感器工作ODR = 5.3kHz?
我的配置如下
CTRL_REG1:0x97
CREL_REG3:0x10
CTRL_REG4:0x10
所有其他寄存器都是默认的

我预期的处理步骤如下
1.传感器数据准备就绪时,INT1引脚使能
2. MCU获得INT1信号,发送事件处理中断
3.中断处理程序读取传感器数据
据我测量,INT1信号的周期约为1.3kHz

请看一下我的配置,让我知道要检查的任何内容。

问候,
海龙

以上来自于谷歌翻译


以下为原文




Hi All,

  
I am developing device to analyze vibration with LIS2DE12 acceclerometer.
I have encountered problem that sensor did not work with ORD=5.3kHz, it worked fine for all other ODRs.
How to configure sensor to work ODR=5.3kHz ?
My configuration is as follows
CTRL_REG1 : 0x97
CREL_REG3 : 0x10  
CTRL_REG4 : 0x10
All other registers are default.
  
My expected processing steps are as follows
1. INT1 pin is enabled when sensor data is ready
2. MCU got INT1 signal, send event to handle interrupt
3. interrupt handler read sensor data.
As I have measured, the period of INT1 signal is around 1.3kHz
  
please take a look at my configuration and let me know anything to check.
  
Regards,
Hae Ryong

回帖(2)

欧竞仲

2018-10-8 11:47:36
大家好,
我得到了当地FAE的回复。
=====
要使用ODR = 5.3kHz,应设置CTRL_REG1的LPen位。数据表上有错误,将在下一个版本中修复。
=====
感谢你的关心。

以上来自于谷歌翻译


以下为原文




Hi All,
I've got following answer from local FAE.
=====
To work with ODR=5.3kHz, LPen bit of CTRL_REG1 should be set. there is error at data sheet, it will be fixed at next release.
=====
Thanks for your concern.
举报

曾玲娟

2018-10-8 11:52:36
新版数据表
http://www.st.com/resource/en/datasheet/lis2de12.pdf
 被释放了。
修改了第8.6节CTRL_REG1(20h)以正确描述ODR = 5.3kHz的配置。

以上来自于谷歌翻译


以下为原文




New version of the datasheet for
http://www.st.com/resource/en/datasheet/lis2de12.pdf
was released.
Section 8.6 CTRL_REG1 (20h) was modified to properly describe also configuration for ODR=5.3kHz.
举报

更多回帖

发帖
×
20
完善资料,
赚取积分