BMA400 datasheet(14/121 Pages) BOSCH

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BMA400 Datasheet(PDF) 14 Page - Bosch Sensortec GmbH

Part #	BMA400

Description	3-axes ultra-low power accelerometer

PDF	121 Pages

Scroll/Zoom	100%

Manufacturer	BOSCH [Bosch Sensortec GmbH]

Direct Link	https://www.bosch-sensortec.com

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14 / 121 page

Bosch Sensortec | BMA400 Data sheet

14 | 121

Modifications reserved | Data subject to change without notice

Document number: BST-BMA400-DS000-13 Revision_2.2_012025

-checking communication via chipid, check power mode, read acceleration data if not in sleep

mode

unknown

mode

STATUS.power_mode

chipid = read_reg(0x00)

chip_ID = 0x90 ?

End

power_mode = (read_reg(0x03)>>1) & 0x03

power_mode = 0x00 ?

YES

sleep mode, no accel

data available

power_mode = 0x01 ?

YES

low power mode

acc_data = read_reg_burst(0x08,6)

X = acc_data(0) + 256*acc_data(1)

if ( X>2047 ) X=X-4096

6 byte Burst read

X,Y,Z data

registers

in normal or low power

mode, calculate X data

normal mode

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