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AM2434: what is the Time sync router and its relationship with Time Sync (CPTS) module?

Will Gao
Intellectual 2335 points
Part Number: AM2434

Hi experts, 

I don't find any device driver support in SDK for Time SYNC (CPTS) module, and neither examples. And I am very confused on the Time sync router, what is the function for Time Sync Router and its relationship with CPTS module? 

According to my understanding, the CPTS module could be used to latch a timestamp into event FIFO and to tell application the time  difference info for couples of events? And also it can generate events as well, the output events can be configured as Sync out or Comp out. But the output events has no any relationship with input events internally, right? 

Customer wants to evaluate following function structure: 

But don't know the architecture for Timer Sync Router and how to use it. 

Please help clarify and give the instruction. Thanks a lot. 

Regards, 

Will 

  • +1
    TI__Mastermind 46151 points
    Will Gao said:
    nd I am very confused on the Time sync router, what is the function for Time Sync Router and its relationship with CPTS module

    (+) [FAQ] AM64x: What is the Time Sync Router for? How do I use it? - Processors forum - Processors - TI E2E support forums Its a system level mux allows to connect SYNC_OUT from various peripherals to SYNC_IN of various peripherals without external loopback.

    Will Gao said:
    According to my understanding, the CPTS module could be used to latch a timestamp into event FIFO and to tell application the time  difference info for couples of events? And also it can generate events as well, the output events can be configured as Sync out or Comp out. But the output events has no any relationship with input events internally, right? 

    Correct, yes, it can measure time difference between events, as well as for measuring rate drift between different timers in SoC who can generate CPTS push event. Yes, output and input has no relationship..