Error 0x0BAE0001 after PM_DEVICE_ACTION_RESUME

RE: Error 0x0BAE0001 after PM_DEVICE_ACTION_RESUME

Alexandre Desgagne — Fri, 01 Apr 2022 13:13:23 GMT

Hi,

We currently not having external pull-ups on our board and I think we never encountered this kind of issue because we never uninit the i2c. I will add a note to add it for the next board revision.

For now, I don't have any problem about not using this function pm_device_action_run(i2c_dev, PM_DEVICE_ACTION_SUSPEND);

I also think the lack of pull-ups resistors may be the cause of this issue.

Thanks,

Alexandre

RE: Error 0x0BAE0001 after PM_DEVICE_ACTION_RESUME

Håkon Alseth — Fri, 01 Apr 2022 12:59:09 GMT

Hi,

Do you use external pull-resistors? If not, could you try to add 10k pull-ups and see if this has any effect on the scenario?

Kind regards,

Håkon

RE: Error 0x0BAE0001 after PM_DEVICE_ACTION_RESUME

Alexandre Desgagne — Fri, 01 Apr 2022 12:10:12 GMT

Hi,

I checked and there's already a wait as per the electrical specifications. I'm using the bmi090l driver: https://github.com/BoschSensortec/BMI090L-Sensor-API.

I continued my examinations and I think the issue may comes from hardware side. The gyroscope answers a "NACK" when I try to wake it up only if uninit the i2c bus using this: pm_device_action_run(i2c_dev, PM_DEVICE_ACTION_SUSPEND); When I remove this instruction, It works properly. I suspect that the bmi090l has a strange behavior when I uninit i2c.

Thanks,

Alexandre

RE: Error 0x0BAE0001 after PM_DEVICE_ACTION_RESUME

Håkon Alseth — Thu, 17 Mar 2022 12:30:21 GMT

Hi,

When placing the external sensor in suspend, it usually has a power up time. This seems to be 1 ms on the accelerometer, but it is much higher on the gyro. Could you try waiting as per the electrical specifications on this sensor before fetching the sample?

Kind regards,

Håkon

RE: Error 0x0BAE0001 after PM_DEVICE_ACTION_RESUME

Alexandre Desgagne — Wed, 16 Mar 2022 20:56:34 GMT

[quote userid="109437" url="~/f/nordic-q-a/85898/error-0x0bae0001-after-pm_device_action_resume"]I'm using a BMI090L[/quote]

I also know that gyroscope and accelerometer both use different addresses.