*i2cdetect -r 0* *i2cdetect -r 1* *i2cdetect -r 2* *not possible* *i2cdetect -r 3*
2015-06-20 13:28 GMT+03:00 Erkan Güzeler <[email protected]>: > Thanks a lot for your reply, > > I clearly understand when I reading some paper about beagle board i2c. > So I changed i2c bus from 4 to 3. > When I tried to "i2cdetect -r (number)" I have some trouble. > if I write *i2cdetect -r 1 * > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: -- -- -- -- -- -- -- -- -- -- -- -- -- > 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 40: -- -- -- -- -- -- -- -- UU UU UU UU -- -- -- -- > 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 70: -- -- -- -- -- -- -- -- > > if I write *i2cdetect -r 2 * > it gives me like that. > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: -- -- -- -- -- -- -- -- -- -- -- -- -- > 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 30: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- > 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 70: -- -- -- -- -- -- -- -- > > if I write *i2cdetect -r 3* > > it gives me some error. > > 00: [ 1047.269256] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.297790] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.321289] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.336639] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.351989] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.374084] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.397430] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.420715] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.433746] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.459899] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.483276] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.506652] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.519683] i2c_omap i2c_omap.3: Arbitration lost > -- > 10: [ 1047.543640] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.554473] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.574829] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.585754] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.606048] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.617095] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.627838] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.652984] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.664093] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.684265] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.707824] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.731109] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.754699] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.777832] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.801544] i2c_omap i2c_omap.3: Arbitration lost > -- [ 1047.824737] i2c_omap i2c_omap.3: Arbitration lost > -- > > So I do't know why it is working like this. > I can't use i2c-3 . > How should I do to fix it ? > > > > > > 19 Haziran 2015 Cuma 19:58:10 UTC+3 tarihinde lisarden yazdı: >> >> i2c4 is for PMIC only. You can't use it. ever >> >> 2015-06-19 17:44 GMT+03:00 Erkan Güzeler <[email protected]>: >> >>> Hi everyone, >>> >>> I'm working on Beagleboard XM RevC2 and I need to read I2C4. So I can't >>> see anything in */sys/bus/i2c/devices/i2c-(1-2-3) * bu I2C4 has not in >>> there. Is there a way to learn it ? >>> >>> Thanks a lot. >>> >>> -- >>> 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. >>> >> >> >> >> -- >> LinkedIn - http://www.linkedin.com/in/maximpodbereznyy >> Company - http://www.linkedin.com/company/mentorel >> Facebook - https://www.facebook.com/mentorel.company >> > -- > 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. > -- LinkedIn - http://www.linkedin.com/in/maximpodbereznyy Company - http://www.linkedin.com/company/mentorel Facebook - https://www.facebook.com/mentorel.company -- 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.
