Kroger info - Issue with I2C Communication Stability on STM32F4

[jamesmivks]

Hi everyone,
I’m working on an STM32F4-based project and facing inconsistent I2C communication stability between the MCU and an external sensor. The issue appears mainly when the sensor performs clock stretching, which causes the STM32 to miss data or stall the bus.

[Andrew Neil]

Welcome to the forum.

You need to give more details - please see:

How to write your question to maximize your chances to find a solution

[TDK]

The STM32F4 allows clock stretching to take place and handles it correctly.