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SM320C6748-HIREL: uPP receive mode issues

Pawan Ghotikar
Expert 1140 points
Part Number: SM320C6748-HIREL

Hi,
We did uPP prototyping on EVAL board for receive only mode for both uPP ports and it worked at 10MHz clock frequency. 
When we try the same on our project does not work, the memory location does not read the data correctly against data observed on uPP data lines. We have the same settings, the only difference is we are trying to run it at 80MHz clock frequency as Core frequency is 375MHz. Are we missing anything here? Please advise.
Is there an example code that we can take a look at?

Thanks,
Pawan

  • +1
    Expert 1140 points


    Hi,
    We resolved this issue. We found that Lower byte data [7:0] for I & Q was read by UPP_D and upper byte data [15:8] was read by UPP_XD with our configuration and we read it incorrectly initially. We were trying to read I[15:0] data from UPP_D and Q[15:0] data from UPP_XD.