How to enable I2C - STM32F411

[ezioall]

how to activate I2C
Good morning
I'm trying to make a project that requires the I2C1 bus work
if I load the compiled project on arduino
from debug the application crashes because it can't read the EEPROM on RTC
I've read various documents but I can't understand how to activate the bus on the STMF411 processor
I'm quite new to STM
with esp32 there are no problems
here it seems more complicated to me

[Tesla DeLorean]

Yes, programming hardware frequently more complicated than presented by Arduino where someone else has worked out the drivers and libraries

The 7-bit Slave Address on STM32 is the High Order 7-bits, not the Low Order. So frequently (SlaveAddr << 1) in translation/conversion.

Look at the documentation for the IC you are connecting, usually sets forth the expectations.

[MOBEJ]

Hello @ezioall , 

You can refer to this example from STMicroelectronics: I2C_TwoBoards_ComPolling Example. This example demonstrates how to handle I2C communication between two boards, which might be helpful for your case involving STM32 and Arduino.

Br

[ezioall]

hi

Il MOBEJE
this code should be fine
but i have to insert my code which is composed of several .H files and the src folder
i will have to study a little

[ezioall]

hi  Il MOBEJE
this code should be fine
but i have to insert my code which is composed of several .H files and the src folder
i will have to study a little

[MOBEJ]

Hello @ezioall 
You can get started with this article that explains how to use I2C in STM32 examples: Getting started with I2C. It should help you integrate your code with the example.

Thank you