I want to achieve battery voltage sampling using bq76920. The following graph is the schematic which I adopt in the circuit, and the pin SDA and SCL connect to TI launchpad msp430g2553 directly, and the pin BAT voltage is 16.5V, pin REGOUT is 2.52V, pin CAP1 is 3.28V, pin TS1 is 1.84V, pin ALERT is 2.52V. The program I use is download in TI website http://www.ti.com/product/cn/BQ76920/toolssoftware.
When I debug the program, I find that the Result is -1, and there is no waveform output from pin SCL and SDA in oscilloscope. Now I don't know whether there are errors in hardware or software.