Thread: ADXL345 I2C Accelerometer NOT WORKING
View Single Post
  #13   Spotlight this post!  
Unread 06-02-2012, 02:47
Mr. Lim Mr. Lim is offline
Registered User
AKA: Mr. Lim
no team
Team Role: Leadership
  
Join Date: Jan 2004
Rookie Year: 1998
Location: Toronto, Ontario
Posts: 1,125
Mr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond reputeMr. Lim has a reputation beyond repute
Re: ADXL345 I2C Accelerometer NOT WORKING
We are having the same issue.

Tried multiple DB-37 cables - round, ribbon, several different connectors, etc.
Tried multiple 4-pin I2C cables.
Tried 2 different ADXL345 board.
Tried both a 4-slot and 8-slot cRIO.
Checked that the pull-up resistors in the DSC are working - we see about 3k between 5V and SDA, 5V and SCL.
SDA and SCL see about 4.6V.

We don't have a scope to check waveforms unfortunately.

We are programming in Java, and all we get back are 0.0 for all three axes.

There are no errors thrown.

I would love to get this working, but we opted to use a 2nd analog gyro turned sideways instead.
__________________
In life, what you give, you keep. What you fail to give, you lose forever...
Reply With Quote