I am using now bq40z50 R1 in a configuration of 3 cells series (3*4.2=12.6 volts) (5400mAh cell), one thermistor (TS1), 2mOhm shunt resistor, communication with EV2300 over SMB; PRES pin is tied to ground
the bq reports no protection is active (all allert and protection alarm flags are off)
i have send the command FET_EN and then CHG_TEST and DSG_TEST; so now the mosfets should be on and voltage should appear on the PACK side. But i get just 5.49 V on CHG pin and 0V on DSG pin (the same at FETs gates).
SMB communications are working, bq reports battery and cells voltage correctly; it display capacity turning LEDs on...Everything except charging and discharging
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I attached the srec file