ICG-20660; Gyro Data Format

By anilanalineartechcom , 4 February 2020

Hi,

We are using ICG-20660 device in our application and trying to read the GYRO data but we are getting data around 16'hFFFF and varies between low values like 16'h0020 and 16'hffbf.

We are not sure whether the data is signed or unsigned or two's complement as it is not mentioned in the datasheet, unlike accelerometer data which is in Two's Complement.

We have configured the following register

0X6B --> 0X01
0X1B --> 0X10

and the data that we have received on X, Y and Z is divided by 65.5 as the register is configured in Full scale.
We are getting x Angular rate as 1000 , 999.6.....SOmething like this

Please suggest what could be the issue as this is the first time we are working with Gyroscopes and we need to understand the interpretation of the data correctly.

--Anil

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