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BQ34Z100-G1: BQ34z100-g1 I2C communication

Part Number: BQ34Z100-G1
Other Parts Discussed in Thread: EV2400

Hi,

I am trying to communicate with the BQ34Z100-g1 and I am using a PIC18f46K22 to do it in I2C mode.

However it is being impossible to get any data of BQ34z100-g1 because data line is always down.

I have connected a sniffer when EV2400 is connected to BQ and I have obtained this pictures I show below

This is the frame to obtain the battery voltage.

However when I try to do the same with the ucontroller (obviusly never EV2400 and ucontroller are connected at the same time) I can not obtain any data because data line is always down.

1. Is it necessary to send any command before trying to obtaine voltage, current,..

2. I just inicialize the program and send start, after send (0xAA), after send (0x08), after start again, after send (0xAB) nad after that two read commands. I obviusly take into account the acknowledge in all de bytes and send the stop command at the end. 

3. What am I not doing correctly?

4. Perhaps it is necessary to send any command to start communictions with BQ34z100-g1?

Thankyou very much in advance,