VL6180X范围偏移怎么更改

偏移数据不存储在传感器内。程序应该是：
 按照偏移校准程序获取偏移结果。将偏移结果保存在CPU的内存中。每次重启时，重新编程偏移寄存器。



以下为原文




The offset data is NOT stored within the sensor. The procedure should be:

• Follow the offset calibration procedure and get the offset result.
  
• Save that offset result in your CPU's memory.
  
• At every restart, reprogram the offset register.
  

你好，约翰
感谢您的回复，我为迟到的回复道歉。
请让我问一个关于以下内容的问题：
＆gt;偏移数据不存储在传感器内。
本文档中有以下代码（
http://www.st.com/content/ccc/resource/technical/document/datasheet/c4/11/28/86/e6/26/44/b3/DM00112632.pdf/files/DM00112632.pdf/jcr：内容/翻译/ en.DM00112632.pdf
 零件到零件范围偏移在制造期间被校准并存储在NVM中。
VL6180的NVM中是否保持偏移值？
根据这份文件（
https://my.st.com/content/ccc/resource/technical/document/user_manual/group0/ba/47/75/5e/d2/80/47/7e/DM00247018/files/DM00247018.pdf/jcr：内容/翻译/ en.DM00247018.pdf
 ），VL6180有一个NVM。
最好的祝福
石川



以下为原文




Hi, john
Thank you for your response and I apologize my late reply.

Please let me ask you a question about the following:

>The offset data is NOT stored within the sensor.
There are the following codes in this document (
http://www.st.com/content/ccc/resource/technical/document/datasheet/c4/11/28/86/e6/26/44/b3/DM00112632.pdf/files/DM00112632.pdf/jcr:content/translations/en.DM00112632.pdf
).>The part-to-part range offset is calibrated during manufacture and stored in NVM.
Isn't the offset value hold in the VL6180's NVM?
According to this document(
https://my.st.com/content/ccc/resource/technical/document/user_manual/group0/ba/47/75/5e/d2/80/47/7e/DM00247018/files/DM00247018.pdf/jcr:content/translations/en.DM00247018.pdf
), VL6180 has a NVM.
Best regards
Ishikawa

你好，约翰
请让我再问你一个问题。
＆gt;我在自定义主板上使用了一些VL6180X设备。
 
然后，它们的范围偏移似乎每次启动都会改变大约±5mm，尽管我按应用说明中的指示调整偏移。
 
＆gt;影响范围偏移的因素是什么？
现在，我补偿范围数据如下：
1.转到我的董事会
2.将传感器前面的白板放在50mm处
3.多次记录范围数据
4.按照应用说明4.1.1的程序计算补偿
https://cdn.sparkfun.com/datasheets/Sensors/Proximity/VL6180_ApplicationNote.pdf
 目前，我每次重启都会重复此过程。
但是，这非常麻烦。
有一次，我打算通过将数据保存在我的文件中来重用偏移数据，
但是当我重新启动我的电路板时，偏移数据似乎不合适。
如果我重新启动电路板，我可以重复使用偏移数据吗？
最好的reagrds
石川



以下为原文




Hi, John
Please let me ask you a question again.

>I'm using some VL6180X devices on my custom board.

Then, their range offset seem to change every start up about ±5mm, although I adjust the offset as directed in application note.

>What affects the range offset?
Now, I compensate the range data like following:
1.turn on my board
2.put a white board in front of the sensor at 50mm
3.get the range data many times
4.calculate the offset in accordance with procedure of application note 4.1.1

https://cdn.sparkfun.com/datasheets/Sensors/Proximity/VL6180_ApplicationNote.pdf
At present, I repeat this procedure every restart.
However, this is very very bothersome.
Once, I intended to reuse the offset data by saving the data in my file,
but when I restarted my board, the offset data seemed to be inappropriate.

Can I reuse the offset data, if I restart the board?

Best reagrds

Ishikawa

一旦进行了偏移校准，它永远适用于该芯片。进行校准，从芯片读取校准数据并将其存储在您的应用程序中。重启时，将保存的校准数据写入传感器。



以下为原文




Once you do the offset calibration, it's good for that chip forever. Do the calibration, read the cal data from the chip and store it in your application. At reboot, write the cal data you saved to the sensor.