Assembly And Test; I2C Interface - Mcube MC3635 Quick Start Manual And Demo

MC3635 3-Axis Accelerometer

2 ASSEMBLY AND TEST

Please note that the SPI and I2C interfaces cannot both be active at the same time as
the clock (SCK) and data (SDA) are shared between the two protocols.

2.1 I2C INTERFACE

The EV3635B evaluation board can be easily wired to any microcontroller. This example shows
a typical Arduino DUE platform. For other microcontrollers, be sure it has I2C with repeated-start
support, then port the code. Please refer to the illustration below to connect the related pins.
•
Connect DVDD to the power supply, 3.3V. (WARNING: attempting to power the part at
a voltage exceeds the maximum rating of 3.6V is likely to damage it.)
•
Connect GND to common power/data ground.
•
Connect the SCL pin to the I2C clock SCL pin on your Arduino.
•
Connect the SDA pin to the I2C data SDA pin on your Arduino.
The MC3635 has a default I2C address of 0x4C and it can be changed to 0x6C by tying
the SDO pin to VDD.
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EV3635B Quick Start Guide and Demo
APS-045-0018v1.2 7 / 20