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AD9361 FMCOMMS3: TX tuning failed

Question asked by Luis_P on Oct 4, 2017
Latest reply on May 11, 2018 by DragosB

Hi everyone,

 

I'm using the Analog FMCOMMS3 kit plugged in a KC705 Xilinx board and i'm using the example design 2016_r2 version together with the last version of the No-OS application from github configured to Xilinx platform, but i'm having some problems to run the digital interface tuning process:

 

Problem found:

When i try to run the application i get the TX tuning failed error and the following report in the terminal:

 

MPL CLK: 40000000 tuning: RX
  0:1:2:3:4:5:6:7:8:9:a:b:c:d:e:f:
0:o o o o o o o # # # # o o o o o
1:o o o o o o o o o o o o o o o o

 

SAMPL CLK: 61440000 tuning: RX
  0:1:2:3:4:5:6:7:8:9:a:b:c:d:e:f:
0:o o o o o o o # # # # o o o o o
1:o o o o o o o o o # # # # o o o

 

SAMPL CLK: 25000000 tuning: TX
  0:1:2:3:4:5:6:7:8:9:a:b:c:d:e:f:
0:# # # # # # # # # # # # # # # #
1:# # # # # # # # # # # # # # # #

 

SAMPL CLK: 40000000 tuning: TX
  0:1:2:3:4:5:6:7:8:9:a:b:c:d:e:f:
0:# # # # # # # # # # # # # # # #
1:# # # # # # # # # # # # # # # #

 

SAMPL CLK: 61440000 tuning: TX
  0:1:2:3:4:5:6:7:8:9:a:b:c:d:e:f:
0:# # # # # # # # # # # # # # # #
1:# # # # # # # # # # # # # # # #

 

SAMPL CLK: 61440000 tuning: TX
  0:1:2:3:4:5:6:7:8:9:a:b:c:d:e:f:
0:# # # # # # # # # # # # # # # #
1:# # # # # # # # # # # # # # # #

 

By the reports, It seems that the RX digital interface is OK but the TX is not. I have tried a lot of solutions without any success. Does Anybody can help me?

 

Best regards,

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