problem with reading temperature from Dallas 1-wire devices

[Tammina.satyamurali bobi]

Hi,

I am trying to read temperature from Dallas 1-wire temperature device "DS18B20". I have loaded the device tree. enabled it in the "/sys/devices/bone_capemgr.*/slots" file. But when tried to read the temperature from the DS18B20 it always reads as ZERO degrees only. I have DEBIAN operating system installed on my Beagle Bone Black.

I get the following on giving "cat w1_slave"

00 00 00 00 00 00 00 00 00 : crc=00 YES

00 00 00 00 00 00 00 00 00 t=0

I am attaching the screen shot which shows the list of commands that i have given to read the temperature.

Please help. 

Thanks in advance

From Satya Murali.

[Tammina.satyamurali bobi]

I have connected my device to P9_22 and checked for  "dmesg | grep w1"  but it doesnot result in any thing. and I also could not find and devices listed under   "/sys/bus/w1/devices/"  except      "w1_bus_master"

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by   Tammina.Satya Murali