when I implement QPSK signal transmit-receive by ad9361, the result is out of my expectation. By ILA IP, the tx_signal and rx_signal are shown as follow,
it can be viewed that Q signal is distorted totally.
then from SDK, I use function ad9361_bist_loopback(ad9361_phy, 1) to implement the loopback tx to rx in ad9361. the signals are shown below,
Q signal is still not right. (ADI provided reference HDL design and no-OS platform are adopted)Can you help me?
thanks in advance,