Page 320 - ARM Based Microcontroller Projects Using MBED

306 11. I C BUS PROJECTS
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FIG. 11.1 I C bus with one master and three slaves.

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TABLE 11.1 Mbed I C Master Node Functions
Function Description
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frequency Set the frequency of communication on the I C bus
read Read from a slave
write Write to a slave
2
start Create a start condition on the I C bus
2
stop Create a stop condition on the I C bus

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11.2 NUCLEO-F411RE I C GPIO PINS

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There are three I C modules on the Nucleo-F411RE development board. The following are
the GPIO pins for these modules:

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I C Module Signal GPIO Pin
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I C1 SDA PB_7, PB_9
2
I C1 SCL PB_6, PB_8
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I C2 SDA PB_3
2
I C2 SCL PB_10
2
I C3 SDA PB_4, PC_9
2
I C3 SCL PA_8