Tool/software:
I have design the 4 Cell 10A Non-Smart BMS using BQ76930 IC, for the basic Protection when i wanted to change the internal register value using I2C by connecting ESP32. Then get the Non Acknowledgement error from the IC.
As per the document to run the IC internal Logic REGOUT is need to be created, for the REGOUT first we need to enable the discharge FET. On the other side we can't able to communicate with BQ76930 without the REGOUT.
I have try to give the external Supply & try to communicate with the IC but get the "Not Acknowledgement" error message from the device.
I have checked the below points.
1) Visual Inspection for Soldering Bridge
2) Connectivity of I2C Lines
3) Pull-Up registers
4) By applying external 3.3V signal at GATE terminal of discharge MOSFET
Kindly suggest a solution to solve this error.