I am developing a setup using a custom AD9371 board with the ZC706 for the baseband processor. On some units, I intermittently get the following debug message during configuration:
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clock locked
BBIC JESD204B Initialization
Mykonos Initialization
MESSAGE: 0: MYKONOS_resetDevice()
MESSAGE: 0: MYKONOS_initialize()
MESSAGE: 0: MYKONOS_verifyDeviceDataStructure()
MESSAGE: 0: MYKONOS_verifyProfiles()
MESSAGE: 0: MYKONOS_setSpiSettings()
MESSAGE: 0: MYKONOS_initDigitalClocks()
MESSAGE: 0: MYKONOS_calculateScaledDeviceClk_kHz()
MESSAGE: 0: MYKONOS_waitForEvent()
WARNING: 233: Clock PLL Charge Pump Cal event timed out in MYKONOS_waitForEvent()
Clock PLL Charge Pump Cal event timed out in MYKONOS_waitForEvent()
MESSAGE: 0: MYKONOS_checkPllsLockStatus()
PLL not locked
As this does not happen on all boards or consistently on all power ups, what should I look at for troubleshooting?