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PLL lock failure detection and Timeout Handling

Question asked by konduru ramu on Jul 27, 2016
Latest reply on Aug 4, 2016 by konduru ramu


Iam currently working on PLL for MPC 577xx series and would like to know some information on handling PLL lock failure detection.

1. whenever there is a loss of clock during PLL initialization,in this case if there is a lock failure then system reset is generated.

2. Can i Implement a safe solution(by timeout handling) in avoiding the system reset.

3. O have gone through the application note AN4880: Handling Crystal Failure for MPC57XX but couldnot find the complete source code in handling the timeout solution.


Please suggest me how to implement the timeout solution ?



ramu konduru