Hello,
I'm using custom omap4460 based board with twl6032 as PMIC.
There is an external charger bq24156a. Signals CHRG_EXTCHRG_STATZ and CHRG_EXTCHRG_ENZ are connected to corresponding pins of bq24156 (STAT and CD). There is a 10K pull-up resistor between CHRG_EXTCHRG_STATZ and VAUX1 and 10K pull-down resistor between CHRG_EXTCHRG_ENZ and ground.
The problem is that if I try to enable the external charger (0x18 is written to CONTROLLER_CTRL1 register) the signal CHRG_EXTCHRG_ENZ remains HIGH and bq24156 is in "charger disabled" mode.
Do I understand right, that only setting CONTROLLER_CTRL1=0x18 should cause HIGH to LOW transition at CHRG_EXTCHRG_ENZ?
Any ideas how to debug this?
Best regards,
Eugen Wagner