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Dual LIS3DH Dilemma

Question asked by Vengeful on Nov 5, 2013
Latest reply on Nov 18, 2013 by Thiago.Reis@ST

So time to get right to it, I am using 2 LIS3DH Accelerometers ( Two Different Addresses Assigned to them), they are both using the same I2C lines and the same INT line on my microcontroller.

That is the way it was designed and now have to make them both work ( NOT at the same time).

The problem that I see now is that when I put one accelerometer in Power Down Mode, and configure the remaining device, after the first interrupt sequence all communications seems to die down. The INT line remains low ( configured for active low ) and thats it dead.

What I have noticed is that if I remove the INT1 connection from anyone of the devices and address the other, it works perfectly. Just never when they are completely plugged in.

Any particular help on the problem is appreciated.