OK. So this sounds like either they are connected backwards, or there is some sort of SW issue at play here. Mkae sure you have the correct I2C bus. Linux likes to rename them while disregarding the actual HW port number. You might try using the uBoot program. Connect a terminal to the debug port and stop it before it boot the kernel. Then see the UBoot probe command. Make sure you use the I2C command to select the correct bus.
Gerald On Mon, Oct 21, 2013 at 9:39 AM, <[email protected]> wrote: > the pull up is 4.7k > > El lunes, 21 de octubre de 2013 09:53:48 UTC-3, Gerald escribió: >> >> What size are your pullup resistors on SDA and SCL? >> >> Gerald >> >> >> >> On Mon, Oct 21, 2013 at 7:47 AM, <[email protected]> wrote: >> >>> Hello everybody. I am new in this forum. I try read my MLX90620 whit a >>> beaglebone black board, and my i2cdetec not detect this in 0x50 and 0x60. I >>> power the sensor whit 3.3v on beaglebone board, which may be the problem. >>> >>> >>> >>> this is out to i2cdetec: >>> >>> https://docs.google.com/file/**d/0B6Uo2gxaAz-** >>> HQ2VjTkVDLTl1Smc/edit?usp=**sharing<https://docs.google.com/file/d/0B6Uo2gxaAz-HQ2VjTkVDLTl1Smc/edit?usp=sharing> >>> >>> >>> -- >>> 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 beagleboard...@**googlegroups.com. >>> >>> For more options, visit >>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>> . >>> >> >> -- > 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/groups/opt_out. > -- 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/groups/opt_out.
