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AD9361 receive data is the reverse of the transmit data

Question asked by on May 9, 2017
Latest reply on May 10, 2017 by larsc

Hi, everyone:


I am using AD9361+zc706 platform. And I have tested the data loopback mode(0X3F5=0x01), it seems that my digital interface timing is correct. Then I test the RF loop. I directly connected to the RF transceiver interface with a SMA cable, and I saw something strange:


Sometimes, The received I-channel data becomes the transmitted Q-channel data;

Sometimes, The received I-channel data is the transmitted I-channel data,But data polarity is reversed.



I am using No-os software,  Can anyone help me ?