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David.Cheng
Associate III
December 27, 2019
Question

I2C STOP

  • December 27, 2019
  • 2 replies
  • 1653 views

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

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    2 replies

    Cristian Gyorgy
    Associate II
    December 28, 2019

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

    David.Cheng
    Associate III
    December 30, 2019

    YES i have