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[问答]

LSM6DS3US启动延迟最佳方法是什么?

嗨,
我是 '
LSM6DS3US
'传感器仅用于I2C模式下的陀螺仪。我有以下与陀螺相关的查询:


1.上电后boot20ms 启动程序加载微调参数需要延迟。这个延迟是强制性的吗?
2.根据文件(AN4650),起始条件必须稳定至少200ms 。这是否描述我必须在读取陀螺仪数据之前将延迟强制为200ms(包括开机/关机)。
3.如果我将ODR设置为 52HZ ,我是否需要在我的应用程序中丢弃前两个陀螺仪数据样本?
4.我应该使用 BDU 功能来减少启动过程中的上述延迟。减少延迟和读取陀螺仪的最佳方法是什么?
5.如果可能,请使用I2C模式与我分享一些示例代码。
问候,
Purusothaman R.

#gyroscope#lsm6ds3us #software-i2c

以上来自于谷歌翻译


以下为原文




Hi,
I am '
LSM6DS3US
' sensor only for Gyroscope in I2C mode.I have the following queries related to the Gyro:



1. After Power On is �20ms� delay needed for bootup procedure to load trimming parameters.Is this delay mandatory?
2. As per the document(AN4650) �the starting condition must be stable for at least 200 ms�. Is this describes I have to put the delay mandatory of 200ms(includes Power On/Power OFF) before reading the Gyroscope Data.
3. Also if I set the ODR to �52 HZ� do I need to discard the first two samples of Gyroscope Data in my application?
4. Shall I use the �BDU� feature to reduce the above delay in bootup procedure. What is the optimal way in reducing the delay and reading the Gyroscope?
5. If Possible share me some example code using I2C mode.
Regards,

Purusothaman R

#gyroscope #lsm6ds3us #software-i2c

回帖(1)

曾玲娟

2018-9-11 16:43:22
1.是的,上电后20ms的延迟是强制性的。
2. + 3.请检入应用程序节点
http://www.st.com/content/ccc/resource/technical/document/application_note/group0/9a/dd/66/c3/bd/0c/4f/68/DM00302340/files/DM00302340.pdf/jcr:内容/翻译/ en.DM00302340.pdf
 确定不同模式转换时的上电时间和丢弃样本数。 BDU - 块数据更新对任何延迟都没有任何影响。
请检查一下
http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32cube-expansion-software/x-cube-mems1.html
 包的例子。

以上来自于谷歌翻译


以下为原文




1. Yes, the 20ms delay after power up is mandatory.
2. + 3. Please check in application node
http://www.st.com/content/ccc/resource/technical/document/application_note/group0/9a/dd/66/c3/bd/0c/4f/68/DM00302340/files/DM00302340.pdf/jcr:content/translations/en.DM00302340.pdf
to determine power-on time and number of samples to be discarded for different mode transition.4. BDU - Block Data Update doesn't have any impact on any delay.
5. Please check
http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32cube-expansion-software/x-cube-mems1.html
package for examples.
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