Hi Hasu ,
First thanks for the reply,
I connected the logic analyzer to pins 12 and 13 because the pins 4 and 5 are too small.
I looked at the I2c protocol details and found this
Acknowledge—The “ACK” is the condition under which
the master generates a 9th clock pulse on the SCL line
(for each byte) while the receiving device pulls the SDA
line low in order to signify that the last byte was received.
A “NAK” is only generated by the master; it signals the
slave that no additional data need be sent.A NAK is used
prior to a STOP to prevent the slave from driving the bus with additional data when the master is about to terminate the communication
Source
http://www.analog.com/static/imported-files/application_notes/54305147357414AN686_0.pdfand then I started looking into the data file i sends setup and write instructions like that though I am not sure what they mean yet. (I am looking into the datasheet of AD5258 to understand that).
I am gonna test it again to see if something got short-circuited and post the results.
I have ordered a cable for the connector as it is standard and really small AWG28 .
Meanwhile Please see the file attached to this post to see the I2c data(the instructions) maybe that means something ?