How to implement a I2C communication in NUCLEO-L152 board

YOEL BEN NAIM · ‎2018-12-13

Hi

I am a newbie to ST microcontrollers.

I want to connect a simple I2C slave device to my NUCLEO-L152RE board. I also used CUBEMX to configure the I2C and generated the code.

Does anyone know a simple step by step tutorial for the communication itself (video or note)?

Amel NASRI · ‎2018-12-14

Hi @YOEL BEN NAIM ,

Why don't you start with examples provided in STM32CubeL1 package? There are already ones that are dedicated to be used with STM32L152RE-Nucleo with one or 2 boards.

Please refer to projects under following folders:

STM32Cube_FW_L1\Projects\STM32L152RE-Nucleo\Examples_LL\I2C
STM32Cube_FW_L1\Projects\STM32L152RE-Nucleo\Examples\I2C

-Amel

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YOEL BEN NAIM · ‎2018-12-18

Thank you Amel!

I will look into it.

Can you tell me what is the difference between the examples and the examples_LL?

Tesla DeLorean · ‎2018-12-18

The Low Level (LL) is a more simplistic abstraction closer to bare-metal/register level.

Don't have the L1 repository installed, but there are usually I2C drivers for assorted board, sensors and EEPROM type devices.

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