Offset calibration

hjhjhj — Tue, 03 Feb 2026 22:06:29 GMT

I want to configure my MMA8652FC with simple offset calibration method according to the AN4069.How can I get the values below.

±2g:

X_offset_2G_12_bit

Y_offset_2G_12_bit

Z_offset_2G_12_bit

±4g:

X_offset_4G_12_bit

Y_offset_4G_12_bit

Z_offset_4G_12_bit

±8g:

X_offset_8G_12_bit

Y_offset_8G_12_bit

Z_offset_8G_12_bit

Can anyone help me?

Best regards,

Re: Offset calibration

TomasVaverka — Thu, 22 Nov 2018 13:10:24 GMT

Hi HJ,

SENSITIVITY_2G_12bits 1024

SENSITIVITY_4G_12bits 512

SENSITIVITY_8G_12bits 256

±2g:

X_offset_2G_12_bit = Xout_12_bit / 2 * (-1);

Y_offset_2G_12_bit = Yout_12_bit / 2 * (-1);

Z_offset_2G_12_bit = (Zout_12_bit - SENSITIVITY_2G_12bits) / 2 * (-1);

±4g:

X_offset_4G_12_bit = Xout_12_bit * (-1);

Y_offset_4G_12_bit = Yout_12_bit * (-1);

Z_offset_4G_12_bit = (Zout_12_bit - SENSITIVITY_4G_12bits) * (-1);

±8g:

X_offset_8G_12_bit = Xout_12_bit * 2 * (-1);

Y_offset_8G_12_bit = Yout_12_bit * 2 * (-1);

Z_offset_8G_12_bit = (Zout_12_bit - SENSITIVITY_8G_12bits) * 2 * (-1);

Best regards,

Tomas