Strange thing with I2C



  • Good day.
    When nothing connect to i2c bus on omega2+, i2cdetect give strange output
    i2cdetect 0
    WARNING! This program can confuse your I2C bus, cause data loss and worse!
    I will probe file /dev/i2c-0.
    I will probe address range 0x03-0x77.
    Continue? [Y/n] y
    0 1 2 3 4 5 6 7 8 9 a b c d e f
    00: -- -- -- -- -- -- -- -- -- -- -- -- --
    10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    30: 30 31 32 33 34 35 36 37 -- -- -- -- -- -- -- --
    40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    50: 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f
    60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    70: -- -- -- -- -- -- -- --
    I dont understand why



  • I try another board - the same result. Seems like it is not hardware problem



  • @Serg-Ivannikov i have seen message also. i think it is just to let you know that the scan could be destructive if you are using some of the addresses already. i have never seen used with 0.


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