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Can't read data from AD5933

Question asked by sepehrm on May 22, 2018

Hi, I'm using an AD5933 with ATxmega128A1U through an I2C interface with MCLK=1MHz. Everything seems to be working fine and I have been able to write data onto the slave successfully. The problem is, however, that I still can't read data from it. On the output of the oscilloscope, I expect a 0x90 value with NACK, but I keep getting 0x00 with NACK. I would really appreciate any help with this issue.

P.S.: I have attached my C code, along with screenshots of the output of the oscilloscope and also the schematics of the circuit I'm using.

 

S.M

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