Battery Charger issues on Imp006 breakout

Hardware
1

I’m having some issues with the battery charger IC on my Imp006 breakout. The board is configured to run on battery power, with all jumpers on positions 1-2. It will run from either USB power, or LiPo. I am enabling the charger with appropriate settings for my battery, but when I run the example code, I always get this:

|2021-02-05T00:34:25.331 +00:00|[Device]|VBUS status: OTG|
|2021-02-05T00:34:25.335 +00:00|[Device]|Input Current Limit: 1400|
|2021-02-05T00:34:25.335 +00:00|[Device]|Fault Report|
|2021-02-05T00:34:25.335 +00:00|[Device]|--------------------------------------|
|2021-02-05T00:34:25.340 +00:00|[Device]|Watchdog Timer Fault reported|
|2021-02-05T00:34:25.340 +00:00|[Device]|Boost Fault reported|
|2021-02-05T00:34:25.340 +00:00|[Device]|VBAT too high|
|2021-02-05T00:34:25.340 +00:00|[Device]|Charging NOT OK - Safety Timer expired|

If I try to reset() the charger, I get:
|2021-02-05T00:47:09.830 +00:00|[Device]|ERROR: [ERROR]: I2C write error -4|
|2021-02-05T00:47:09.835 +00:00|[Device]|ERROR: in _setReg …p#bq25895.device.lib.nut#3.0.0:464|
|2021-02-05T00:47:09.835 +00:00|[Device]|ERROR: from reset …p#bq25895.device.lib.nut#3.0.0:271|

Thanks in advance, Joel

2

The charger on the 006 breakout is the bq24295, not the bq25895 (which was on the impC001). That’s probably the issue here?

3

That is the problem. The link on this page states the correct chip, but the link takes you to the bq25895 page, which is where I was led astray.

https://developer.electricimp.com/hardware/resources/reference-designs/imp006breakout#power-management-libraries

4

Ah! @smittytone one for you :slight_smile:

5

Fixed!      

6

This topic was automatically closed after 60 days. New replies are no longer allowed.