BNO055 Fusion Interrupt

[Nico1]

Hello,

To my best knowledge, this question is not answered elsewhere. It appears that I am misunderstanding the datasheet, but I can't see what I am doing wrong.

We are using the BNO055 IMU-fusion submode. I have three questions:

1.) The datasheet (November 2020), states:

Footnote 6: "This field is only available with software versions 3.14 and above".

Footnote 7: "The current pre-programmed software version is 3.11 ..".

I do not understand this. Are the devices deliberately delivered with outdated software? And why?

2.) Footnote 6 (mentioned above), is about the ACC_BSX_DRDY interrupt. Can anyone please explain, what is the use of any fusion-mode, if I don't know when new data is available. What should I do to, *immediately* read the data, when it comes available?

3.) When are the devices with new firmware (versions 3.14 and above) being delivered?

Thank you for your attention,

Best regards,

Nico Zink

[Nico1]

Ok, thank you.

From your answer, I must conclude that the fusion interrupt is indeed not functioning with the pre-installed firmware.

Personally, I find it quite disturbing that Bosch allows this to happen. Effectively, the fusion submode cannot be used in any serious application, without first upgrading the firmware.

[BSTRobin · Accepted solution]

Hello Nico1,

You could got new firmware from the following download link.

https://www.bosch-sensortec.com/software-tools/tools/development-desktop-software/

[BSTRobin]

Hello Nico1,

Do you have any further updates?

[BSTRobin]

As no update for a long time, we close this ticket first.

You could also update it here in the future.