BQ33100: LLEN

Jelly li

Part Number: BQ33100
Other Parts Discussed in Thread: BQEVSW

i've tried to write regiter 0x37 to setup the LLEN pin high. It worked fine. But one day, capacitance learning failed, the LDTO bit in register OperationStatus (0x54) was 1. Then i tried to setup LLEN pin again by write 0x37, and i failed. So, is there any register should i set to setup LLEN?

over 6 years ago

0 Onyx Ahiakwo over 6 years ago

TI__Guru* 76230 points

hi Jelly
Issue a reset command 0x41 and the retry the command 0x37 and let me know if that fixes your issue
thanks
Onyx

0 Jelly li over 6 years ago in reply to Onyx Ahiakwo

Intellectual 290 points

I’ve tried to issue reset command 0x41, and then retried the command 0x37. It’s still the same. The LLEN pin is 0 all the time.
i want to know: Will other registers affect the setting of LLEN or what state will affect this parameter?
thanks
Jelly

0 Onyx Ahiakwo over 6 years ago in reply to Jelly li

TI__Guru* 76230 points

the gauge needs the learn load to learn the capacitance and ESR of the capacitor. Can you send a screen shot of bqEVSW .Also attached your gg file.

thanks
Onyx

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BQ33100: LLEN