LSM9DS1 datasheet(21/72 Pages) STMICROELECTRONICS

部件名	LSM9DS1

功能描述	iNEMO inertial module: 3D accelerometer, 3D gyroscope, 3D magnetometer

PDF	72 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

21 / 72 page

DocID025715 Rev 3

21/72

LSM9DS1

LSM9DS1 functionality

3.3

Accelerometer and gyroscope multiple reads (burst)

When only accelerometer is activated and the gyroscope is in power down, starting from

OUT_X_XL (28h - 29h) multiple reads can be performed. Once OUT_Z_XL (2Ch - 2Dh) is

read, the system automatically restarts from OUT_X_XL (28h - 29h) (see Figure 6).

Figure 6. Multiple reads: accelerometer only

When both accelerometer and gyroscope sensors are activated at the same ODR, starting

from OUT_X_G (18h - 19h) multiple reads can be performed. Once OUT_Z_XL (2Ch - 2Dh)

is read, the system automatically restarts from OUT_X_G (18h - 19h) (see Figure 7).

Figure 7. Multiple reads: accelerometer and gyroscope

Table 12. Gyroscope turn-on time

ODR [Hz]

LPF1 only(1)

1. The table contains the number of samples to be discarded after switching between low-power mode and

normal mode.

LPF1 and LPF2(1)

14.9

LPF2 not available

59.5 or 119

238

476

952

LSM9DS1 数据表(PDF) 21 Page - STMicroelectronics