nuttxs commented on PR #16658:
URL: https://github.com/apache/nuttx/pull/16658#issuecomment-3034185283

   @hartmannathan 
   Sorry, there might have been some ambiguity in the previous description.
   1. ARP actual comparison requires conversion to tick values, and the unit of 
tick is microsecond-level, so conversion to microsecond level is needed.
   2. The detailed macro expansion is as follows:
      ```
      SEC2TICK(10 * 8640) → MSEC2TICK(10 * 86400 * 1000)
                            → USEC2TICK(10 * 86400 * 1000 * 1000)  // Exceeds 
uint32_t range, causing overflow
      ```


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