i2c


I2C Communication between 2 Beaglebone black


I want I2C communication between 2 Beaglebone Black. I am able to Communicate Beaglebone Black with MPU6050.
The Problem with Two Beaglebone Black is, after making the whole setup ready, I am using I2C2 Bus, in that i am connecting DATA line of one board to other and CLOCK line also. (Pin no.19 for clock and Pin no. 20 for DATA). As I2C2 bus does not have Pull ups Resistors, Ihave tried with different values: 5k 4.7k and 2k. But communication is not happening. For Pull up Resistor Setup: One side with Data line and one is VCC 3v (Pin no. 3), same for Clock line also.
But nothing is happening, If i am using i2cdetect command on shell, It is not even detecting that any other I2C device is connected on I2C bus, How to take it further.

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