MM9Z1_638 Filter

[Boris_Bloxsberg]

Hi,

some weeks ago I added a question regarding the Filter of the MagniV.

Now, I´ve got an additional question....

At page 139 of the manual of the MM9Z1_638  I found the main structure of the implemented low pass filter. In table 192, I found the value conversation: "Data Format: MSB = Sign (“1” minus)"

Does it mean, you are using the twos complement? and is there an excel sheet aviable to calculate new values?

regards.

[StanoA · Accepted solution]

Hi Boris,

It is used the fractional arithmetic in this case so the MSB is sign bit. The number is in range of +-1.000 on 15-bits (14:0).

Attached is the excel sheet for this calculation too.

I hope it could help you in your task.

Best Regards,

Stano.