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ADC32RF45: Channel A work only

user6006318
Prodigy 30 points
Part Number: ADC32RF45

Dears:

I only want to use Channel A，but when I PD CHB，EVM Board can not linked with FPGA，is it possible to use only Channel A?

  • 0
    TI__Mastermind 44680 points
    Hello
    I have notified the ADC32RF45 expert regarding your question.
    He will provide a more detailed response soon.
    Best regards,
    Jim B
  • 0 in reply to Jim Brinkhurst1
    TI__Genius 10865 points
    Hi user,

    It is possible to use only channel A.
    Are you able to link up and capture ADC output data when both channels are turned on and losing link when you PDN chB?
    Can you send the SPI writes you are using to PDN chB?

    Regard,
    Vijay
  • 0 in reply to Vijayendra Varma Siddamsetty
    Prodigy 30 points

    Vijay

    Thanks for you reply,yes,I am able to link up and capture data but when I PDN chB，link is breaking.

    I am using ADC32RF45 EVM Board and PDN chB from EVM GUI.

  • 0 in reply to user6006318
    TI__Genius 10865 points

    Hi user,

    The TSW capture card is currently programmed to look for valid JESD data on all 8 JESD lanes from ADC32RF45. When PDN chB is selected, only the top four lanes (lanes that carry chA output) will be active. So configuration file for TSW card has to be modified. Please follow the below steps to achieve this. 

    1. Program both ADC32Rf45EVM and TSW capture card as described in the user's guide.
    2. If you are using TSW14J56 rev D capture card, copy the attached 'ADC32RF45_LMF_82820_only_chA.ini' to 'C:\Program Files (x86)\Texas Instruments\High Speed Data Converter Pro\14J56revD Details\ADC files' in your PC.
    3. In HSDC pro, click on Instrument options --> Disconnect from the Board. Connect to board again and select 'ADC32RF45_LMF_82820_only_chA' instead of 'ADC32RF45_LMF_82820'  
    4. Assert PDN chB En and PDN chB in ADC configuration tab in ADC32RFxx tab in GUI.
    5. In HSDC pro, click on Instrument options --> Reset board.
    6. Click on 'Capture' to capture data from chA 

    https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/73/ADC32RF45_5F00_LMF_5F00_82820_5F00_only_5F00_chA.ini

    Regards,
    Vijay

  • 0 in reply to Vijayendra Varma Siddamsetty
    TI__Genius 10865 points

    Hi user,

    I'm closing this post due to inactivity. If you still need my help, please open a new e2e post.

    Regards,

    Vijay