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AFE7950EVM: JESD204B Subclass 0 operation

AK
Prodigy 250 points
Part Number: AFE7950EVM
Other Parts Discussed in Thread: AFE7950

Can the AFE7950 be operated in JESD204B subclass 0 mode, without the sysref, using all the ADCs, considering only one chip is present. How to configure it using Latte?

  • 0
    TI__Mastermind 18011 points

    Hi AK,


    If deterministic latency is not a system requirement then you can use an internal sysref signal for the AFE bringup. To do this you can add the following parameter to your bringup script. This parameter will configure the AFE so that it ignores any signals on the sysref pins and instead uses an internally generated signal for the required pulses during bringup. 

    sysParams.useSpiSysref=True (Please make sure this parameter is added before the AFE.deviceBringup() line)


    Regards,

    David Chaparro