NXP Semiconductors Freedom FRDM-KV11Z, Руководство пользователя, Страница: 11 / 20

Accelerometer and magnetometer
FRDM-KV11Z Evaluation Board Users Guide
NXP Semiconductors 11
Figure 10. FRDM-KV11Z MCU clock source
To generate the max system frequency of the MCU, initialize the external clock source the OSC module,
divide the input clock for the FLL in the MCG module and then multiply the FLL clock up to the 75
MHz clock frequency.
All of these settings and configurations can be managed with the MCUXpresso Clocks tool available on
http://www.nxp.com/mcuxpresso .
6. Accelerometer and magnetometer
An FXOS8700CQ, 6-axis accelerometer and magnetometer sensor is interfaced through an I2C bus and
two GPIO signals, as shown in the following table. By default, the I2C address is 0x1D (SA0 pull-up
and SA1 pull-down).
Accelerometer and magnetometer signals connections
FXOS8700CQ KV11Z connection
SCL PTC6/I2C0_SCL
SDA PTC7/I2C0_SDA
INT1 PTB3
INT2 PTB2