Hi
1. After disconnecting the external input source, write ‘1 ’to 'BATFET_DIS' of register Reg09 of BO25895, and make the chip enter sleep mode (with battery at this time), then input 6V/2A power to VBUS terminal. I have ensured that there is power input to VBUS, but found that there is no power output of SYS pin in some machines.At the same time, the BAT pin is not charging. Only when the external input power supply and battery are disconnected at the same time, and then the battery or external power supply is connected, the SYS pin will have the power output. For example, the BQ25895 can output or charge normally if the power is reset.
2. Question 1 appears probabilistically, we guess whether it is related to DMDP or I2C Watchdog Timer Setting, because I wrote 'I2C Watchdog Timer Setting' as' 00 '.
3.'I2C Watchdog Timer Setting' is written as' 00 '，What are the effects?
4.What is the effect of writing 'I2C Watchdog Timer Setting' as' 01 '?
The register configuration of BQ25895 when external power is connected
0X0 = 0X3F
0X1 = 0X5
0X2 = 0XBC
0X3 = 0X3A
0X4 = 0X10
0X5 = 0X7
0X6 = 0X5E
0X7 = 0X8D
0X8 = 0X3
0X9 = 0X54
0XA = 0X93
0XB = 0X16
0XC = 0X0
0XD = 0X94
0XE = 0X4C
0XF = 0X4E
0X10 = 0X50
0X11 = 0XA3
0X12 = 0X14
0X13 = 0X1B
0X14 = 0X39
BQ25895 register configuration when external power is not connected（NO ship mode）
0X0 = 0X3F
0X1 = 0X5
0X2 = 0XBC
0X3 = 0X3A
0X4 = 0X10
0X5 = 0X7
0X6 = 0X5E
0X7 = 0X8D
0X8 = 0X3
0X9 = 0X54
0XA = 0X93
0XB = 0X2
0XC = 0X0
0XD = 0X94
0XE = 0X4C
0XF = 0X4F
0X10 = 0X4F
0X11 = 0X23
0X12 = 0X14
0X13 = 0X3F
0X14 = 0X39
