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stm32 - i2c communication fail after disconnecting oscilloscope probe - Electrical Engineering Stack Exchange
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![c - Why STM32 I2C slave is returning unwanted NACK or indefinitely clock stretching? - Stack Overflow c - Why STM32 I2C slave is returning unwanted NACK or indefinitely clock stretching? - Stack Overflow](https://i.stack.imgur.com/cr18c.png)