Problem L3GD20 with VDDIO, when this pin is low by mcu

Status
Not open for further replies.
V

volkii

Newbie level 5
Joined
Mar 30, 2010
Messages
10
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Location
turkey
Activity points
1,338
Hi Guys,

I want to disable/enable digital interface by VDDIOpin of L3GD20, But i can not be successful. I tried this pin pull down by my hand. But my power supply gave me high current warning. I use an accelerometer in same bus line, also its vddio pin is connected with vddio of gyro. I can pull Accelerometers vddio pin down correctly. I am thinking that
L3GD20 desgin is filed. (i tried on 2 L3GD20 separately )
Have you got any suggesion?

my design:
 

if you want to disable it , one option is to remove VDD and keeping VDD_IO at 3.3v.

this will not disturb the communication in other modules.
 

It's not good for me. I will use this pin for I2C recovery when communication stop in unintended consequences
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…