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BQ25756: Getting started

Part Number: BQ25756

Tool/software:

I am having some issues to get the BQ25756 running.

I tried to follow the steps from the demoboard manual: send the value 9 to the register 0x15 to clear the WATCHDOG and the value 1 to the register 0x17 to set the ENA_CHG.

The 5V regulator is on and the FBG goes low by clearing the pin CE\, but the device doesn't start charging.

I tried also to get the battery voltage by enabling the ADC control (send the value 64 to the register 0x2B) and read the register VFB_ADC (0x39), but it returns 0.

What should be the first steps to start charging?