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I2C STOP

David.Cheng
Associate II

hardware I2C: my stm8l152 have two i2c slave device, it works well when does not connect to a oscilloscope.

when connect to oscilloscope, mcu may be stop i think oscilloscope has effect on i2c, I2C communicate by polling

2 REPLIES 2
Cristian Gyorgy
Senior III

An oscilloscope probe should not influence I2C bus. Do you have pull-up resistors on the pins?

YES i have