Hi,
I'n an electrical engineering student, trying to develop a battery application for my master thesis. Using the BQ34Z100 I want to monitor a LiFePO4 battery pack at 14.4V, but I'm having a hard time communicating with this IC.
To every two-byte command, the chip seems to respond with NACK, but on the attached images you can see, the clock signal is beeing pulled down! (by the IC!)
Reading the chem-ID just for any initial communication, I followed a post within this forum where it said:
Using "Read/Write I2C Byte"
enter I2CCommand00 Byte 08 press Write Byte button (The scope waveforms occur in this order. AA, 00, 08)
Unfortunately every second byte is being responded to with a NACK.
Thanks a lot for your help in advance, I'd appreciate any hint,
Ralf
P.S. There's nothing else connected to the I2C bus, just a MSP430 MCU and the BQ34Z100.
(@94kHz)
(@13kHz)
