Community Home
★ Community Points System ★ Must read for newbies ★ Moderator Application★
 

Forum
Return list
2060 views|5 replies
chenbingjy

3180

Posts

0

Resources
The OP
Published on 2019-12-29 14:49 Only look at the author
 

AD7190 Issues [Copy link]

I recently worked on AD7190, and the sampling results when no-load are roughly as follows:

Is this correct? I don't understand, please help me. Thank you!

This post is from stm32/stm8

Latest reply

littleshrimp
If you are not sure whether the ADC is working properly, you can short IN+ IN- to the ground and see the result. If the ADC problem is ruled out, check the analog front-end circuit. Or you can convert the current data into signed decimal data and collect multiple data. Use EXCEL and other software to analyze and see if it is consistent with your expectations.  Details Published on 2019-12-29 18:25
Personal signature为江山踏坏了乌骓马，为社稷拉断了宝雕弓。
 
chenbingjy

3180

Posts

0

Resources
2
 The OP| Published on 2019-12-29 15:00 Only look at the author
 


Sometimes it happens again, also empty.

This post is from stm32/stm8
 
Personal signature为江山踏坏了乌骓马，为社稷拉断了宝雕弓。
stm32学习  stm8学习  sem32
 
littleshrimp

9702

Posts

24

Resources
3
Published on 2019-12-29 15:18 来自手机 Only look at the author
 
Do not leave the input pin floating as the measurement will not make sense
This post is from stm32/stm8

Comments

chenbingjy
I mean the sensor is connected, but no force is applied.  Details Published on 2019-12-29 18:16
 
stm32论坛  stm8论坛  stm32开发  stm8开发  MicroPython教程  MicroPython教程论坛
 
chenbingjy

3180

Posts

0

Resources
4
 The OP| Published on 2019-12-29 18:16 Only look at the author
 
littleshrimp posted on 2019-12-29 15:18 Don't leave the input pin floating. It is meaningless to measure it.

I mean the sensor is connected, but no force is applied.

This post is from stm32/stm8

Comments

littleshrimp
If you are not sure whether the ADC is working properly, you can short IN+ IN- to ground and check the result. After eliminating the ADC problem, check the analog front-end circuit. Or you can convert the current data into signed decimal data and collect multiple data. Use EXCEL and other software to analyze and see if it is consistent with your expectations.  Details Published on 2019-12-29 18:25
 
Personal signature为江山踏坏了乌骓马，为社稷拉断了宝雕弓。
 
 
littleshrimp

9702

Posts

24

Resources
5
Published on 2019-12-29 18:25 来自手机 Only look at the author
 
chenbingjy posted on 2019-12-29 18:16 I mean the sensor is connected, but no force is applied.
If you are not sure whether the ADC is working properly, you can short IN+ IN- to the ground and see the result. If the ADC problem is ruled out, check the analog front-end circuit. Or you can convert the current data into signed decimal data and collect multiple data. Use EXCEL and other software to analyze and see if it is consistent with your expectations.
This post is from stm32/stm8
 
 
 
chenbingjy

3180

Posts

0

Resources
6
 The OP| Published on 2019-12-29 19:26 Only look at the author
 

Thank you! I'll try it

This post is from stm32/stm8
 
Personal signature为江山踏坏了乌骓马，为社稷拉断了宝雕弓。
 
 
Return list
Guess Your Favourite
Just looking around
Find a datasheet?
Search

EEWorld Datasheet Technical Support

Hot tag
Related articles more>>
New Posts
Featured

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews

User Search：

Room 1530, Zhongguancun MOOC Times Building, Block B, 18 Zhongguancun Street, Haidian District, Beijing 100190, China Tel:(010)82350740 Postcode：100190

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号
快速回复 返回顶部 Return list