AD9163 JESD204B Interface

While trying to debug why AD9163 is not detecting /K/ chars for CGS, FIFO is responding to characters but snap shots are not capturing bytes. What could be wrong

Kindly help is any one can.

UC Shrivastava

DAC PHY FIFO FULL EMPTY <030C>= 00BF <030D>= 00FF 

<0x31E>=,(gtxchannel<<2)+2);
<0x31E>,(gtxchannel<<2)+2+1);
 for (i=0;i<5;i++) {  k=ReadDac(0x31F+i); // snap    WriteHexByte(k);    }


Snap Lane 0  00 00 00 00 00
Snap Lane 1   00 00 00 00 00
Snap Lane 2  00 00 00 00 00
Snap Lane 3  00 00 00 00 00
Snap Lane 4  00 00 00 00 00
Snap Lane 5  00 00 00 00 00
Snap Lane 6  00 00 00 00 00
Snap Lane 7  00 00 00 00 00
Status of CGS ETC 0x470..0x473....<00 00 00 00 >
LFMC Phase ...37 38 <80 0F >
Sysref Count ...FF

Temp 8E07

  • +1
    •  Analog Employees 
    on Jul 29, 2019 4:27 PM

    Hello, you can start by going through some basic JESD204B link debugging procedures.  The attached is a little dated but still applies to devices using 204B interface.  Pages 3-4 give an overview of the processes while the DAC-related details start on page 22.PDF