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AFE7950: About Latte script

Yoonsun Kim
Expert 1740 points
Part Number: AFE7950

Hi,

The application I am developing is radar system. I think that FB channels are not needed and TDD mode is enabled.

1> How can I disable FB channel in Latte script file?

After disabling FB, RRFMode 5 and 6 operate equally for TDD mode?

2> sysParams.serdesFirmware should be 'True' ? 

If this param is set to 'True', which firmware would be downloaded? Where can I see the serdesFirmware source?

3> AFE.systemStatus.loadTrims should be '1'?

4> sysParams.topLevelSystemMode

Where can I find the description about topLevelSystemMode.

Regards,

YS

  • 0
    TI__Genius 11980 points

    Hi YS,

    1. To disable the FB channel in Latte you can use the following command: sysParams.fbEnable = [False,False]

    2. Yes, this parameter should be set to 'True'. When this is set to 'True' the AFE loads the serdesFirmware internally and the source cannot be shared.

    3. Yes, the AFE.sysStatus.loadTrims should be '1'.

    4. I will check with the team on more information about this parameter. 

    Regards,

    David Chaparro

  • 0 in reply to David Chaparro
    Expert 1740 points

    Hi David,

    I added sysParams.fbEnable = [False,False] then faced following errors after 'Buffer'

    ==============================================

    #Error: list index out of range

    # "AFE79xx/bringup/exRefClk_12G_fb off_2023_0202.py", line 188, in

    # File "C:\Users\RFPT-0up.DESKTOP-584IQR1\Documents\Texas Instruments\Latte\lib\\AFE79xxLibraries\\AFE79xxLibraryPG1p0\resourceFiles\mFuncDecorator.py", line 88, in inDecorator

    # a=func(*args,**kwargs)

    # File "C:\Users\RFPT-0up.DESKTOP-584IQR1\Documents\Texas Instruments\Latte\lib\\AFE79xxLibraries\\AFE79xxLibraryPG1p0\mAfeLibrary.py", line 488, in deviceBringup

    # self.powerSaveFunctions()

    # File "C:\Users\RFPT-0up.DESKTOP-584IQR1\Documents\Texas Instruments\Latte\lib\\AFE79xxLibraries\\AFE79xxLibraryPG1p0\resourceFiles\mFuncDecorator.py", line 88, in inDecorator

    # a=func(*args,**kwargs)

    # File "C:\Users\RFPT-0up.DESKTOP-584IQR1\Documents\Texas Instruments\Latte\lib\\AFE79xxLibraries\\AFE79xxLibraryPG1p0\mAfeLibrary.py", line 2526, in powerSaveFunctions

    # device.RRF[validPage/3].EC_DIG[validPage%3].clkgen.REGGROUP_2.Property_b0h_5_5 = 1

    # IndexError: list index out of range

    Regards,

    YS

  • 0 in reply to Yoonsun Kim
    TI__Genius 11980 points

    Hi Yoonsum,

    Can you share the script that you are testing?

    Regards,

    David Chaparro

  • 0 in reply to David Chaparro
    Expert 1740 points

    extref_fb_off.zip

    Hi David

    I attached the script I am testing.

    Regards,

    YS

  • +1 in reply to Yoonsun Kim
    TI__Genius 11980 points

    Hi Yoonsun,

    I can run the script without any errors. Can you confirm that you are using the latest version of the Latte software?

    Regards,

    David Chaparro

  • 0 in reply to David Chaparro
    Expert 1740 points

    Hi David,

    I found out I am using old version Latte and checked no error after installing the latest Latte.

    Thank you for your help

    Regard,

    YS