ADC12DJ4000RFEVM: bringup / connection with TSW EVM issue

Hi Neeraj, please my answers below:

Can you please make sure the the Jumper J13 labeled REFSEL is installed?

>> YES, it is correctly installed.

Current limit for ADC and TSW boards is set to 3 amps and 5 amps?

>> YES both power supplies are set at 12V, are drawin about 2amps

The clock signal generator and ref clock signal generator are locked with 10M ref with each other?

>> YES, both clocks are coming from the same JBERT . Ref CLK=130MHz(J12) and Sampling CLK=1300MHz (J10)

Also when you click the update temperature does it update the temperature? if it does it will tell us there is communication between ADC board and GUI. 

>> YES, the temprature changes, so there is a link between ADC EVM and the GUI. I have made sure that the FMC is properly connected.

Additionally: D3 LED on TSW EVM is yellow but NOT blinking. D4 LED is Off. When I press the 'Program clocks and ADC' button on the ADC GUI, the D1:D5 LEDs on TSW EVM go OFF for a moment before reverting to final state.

Under the JESD tab of the ADC EVM, the Serdes PLL locked button is green but SYNC status and Link up status button is black,

thanks

Gaurav

Yes Neeraj, I confirm, that is the correct file 'ADC12DJxx00RF_JDMODE0' 

thanks

Gaurav

D1,D2,D3 LEDs should be off and D4 LED labeled RX_CLK on TSW14J57 should be blinking. if it is not blinking means the reference clock is not going to the FPGA or firmware is not getting loaded properly to the FPGA. Again can you please check both clock signal on the Oscope and make sure they look ok. 

Regards,

Neeraj 

Yes, i have checekd the clock signals on the scope mutiple times, but i'll plug out all connrectors and do it again and update.

D4 never blinks, I am also suspicious something on the 'clock' side hampering propoer communication between the 2 EVMs. i'll revert back. thanks

Hi Neeraj, I checked the clocks on the scope again, they are fine. RefClk=130MHz, SamplingCLK=1300MHz, Data=2000MHz. I also tried RefClk=260MHz, SamplingCLK=1300MHz just in case.

Now one thing that I want to confimr is that we are in external reference clokc mode, and the manual says that it is the default mode, so i assume that we don't have to make any change to the board.

I want to confirm this as the manual also says to :

• Remove C2 and C3, populate R171 and R174
• Remove C60 and C61, populate C52 and C306

But i assume that the board is already in this configuration. Please confirm that we don;t have to modify the board.

thanks

Gaurav