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AWR1843: SDK 3.4 AWR18XX demo bring up failed

Part Number: AWR1843

Hi all

     I encountered a problem when I bring up xwr1843..I use the parameter configuration in the xwr18xx demo profiles, but the configuration fails,the error is mmwave start failed  [mmwave  error:-3122,Subsys 125]

     SDK version:sdk3.4

     CCS:8.3

     profile:profile_2d.cfg\profile_3d.cfg

     error:  mmwave start failed  [mmwave  error:-3122,Subsys 125],which means mmwave bss calibration trigger failed

     really need your help

thanks