STEVAL-MKI109V3 does not interpret Z axe value

[sch0bert]

Hello, I'm using the STEVAL-MKI109V3 board in combination with STEVAL-MKI175V1 and trying to read the X, Y and Z values through the serial port using the commands described in the STEVAL-MKI109V3 documentation and I'm unable to see the Z axe value after running the *debug command:

The initialization commands that I'm doing are:

1. *setdb175v1
2. *zoff
3. *w206F
4. *debug

And then I start getting the data through the terminal as the picture below. When I stop it and I read directly the registers that has the X, Y and Z values, I get the next:

As you can appreciate register 2D, which stands for OUT_Z_H, has a value of 0x36h and not 0 as in *debug.

The firmware version that I'm using on the STEVAL-MKI109V3 is V3.53.3

If I use Unico-GUI with the same register configuration, the tool is able to graph and read from the register the value of Z without any issue. For that reason is my believe that there might be something wrong in the STEVAL-MKI109V3 firmware.

Please let me know if you need more information.

Regards,

Pascal.

[sch0bert]

I just repeated the test with a STEVAL-MKI238A and it works well on that one:

The commands that I sent to that board were:

1. *setdb238a
2. *zoff
3. *w1204
4. *w1490
5. *debug

Regards,

Pascal.

[sch0bert]

Hello, is any from ST support working on this?

[Federica Bossi]

Hi @sch0bert ,

It is a bug in the debug mode of the fw that will be fixed in the new release.

In the meantime you can you use the command *start to have the correct data.

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