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Where is KEEPALIVE_TIMEOUT_MAX in Z-Stack Home 1.2.2?

Kyle Zhou
Expert 1240 points

In Home 1.2.1 there is a parameter KEEPALIVE_TIMEOUT_MAX that controls the child aging timeout.

But I cannot find it in the new 1.2.2. Am I missing something?

  • 0
    Guru 735695 points
    I see some changes about this CHILD AGING. I think is KEEPALIVE_TIMEOUT_MAX replaced by zgEndDeviceTimeoutValue in ZGlobals.c.
  • 0 in reply to YiKai Chen
    Expert 1240 points
    Thanks Yikai.
    After comparing the source files carefully, I found that NWK_END_DEV_TIMEOUT_DEFAULT (defaults to 8, or 256 minutes, in ZGlobals.h) is playing the role of the old KEEPALIVE_TIMEOUT_MAX.
    But NWK_END_DEV_TIMEOUT_DEFAULT is defined as an index to an array timeoutValue[] in nwk_globals.c, which enumerates all possible timeout values from 10 sec to 16384 min. I think that is in compliance with zigbee spec r21, which has not released to the public yet.
    END_DEV_TIMEOUT_VALUE (and zgEndDeviceTimeoutValue) is similar, but is used by ZED when sending End Device Timeout request, as suggested in the comments in ZGlobals.h.
  • 0 in reply to Kyle Zhou
    Guru 735695 points

    No idea why TI makes it an array. However, you can change the values in array to whatever you want if you need to change the timeout to a specific value that is not in the array.