5/19

STR71X CLOCK CONFIGURATIONS EASY SETUP

3 I2C

The I2C has two functioning modes:

■

The Standard I2C mode,

■

The Fast I2C mode.

Figure 4. I2C calculation sheet

In this calculation sheet, it is necessary to select the functioning mode (Standard or Fast) by

pushing the “Mode” button, and then to input the required Prescaler. We obtain as a result the

working frequency of the I2C bus.

Figure 4 illustrates how to configure the I2C mode to Standard mode and the working fre-

quency of the Bus to 50KHz.

Note: For more information about the calculation formulas, refer to the I2C section in the ref-

erence manual.