The above command scans the i2c-1 bus and reports the device address attached to it. In this case 0x54, 0x55, 0x56 and 0x57 are the device addresses, which are EEPROMs. The "UU" indicates, the address is already occupied by some driver. You can check the p9_20 (I2C2_SDA) for sent data and ack replied back by devices in a oscilloscope, and p9_19 (I2C2_SCL) for i2c clock source.
For better understanding regarding the i2c-tools follow the below mentioned link - http://www.lm-sensors.org/wiki/i2cToolsDocumentation Thanks, S.B. On Sun, Sep 7, 2014 at 1:39 PM, <[email protected]> wrote: > Hi all, > I would like use I2C, but l'm newbie > i throw this > i2cdetect -y -r 1 > > this is response > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: -- -- -- -- -- -- -- -- -- -- -- -- -- > 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- -- > 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 70: -- -- -- -- -- -- -- -- > > How read this response ? > What we need for read the componement > if I mesure P9_19 and P9_20 i have a signal when i throw commande > > thianks for help :) > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
