[TinyOS-Help]In Blink.nc, Why we need code "Main.StdControl -> BlinkM.StdControl; "??

[Renee Azhen]

Dear all:
  I am newer to TinyOS,  when studying the case Blink, I am quite puzzled about the code "Main.StdControl -> BlinkM.StdControl;" in Blink.nc.
   
  Why we need this?
   
  I think it is because that we need we need to initilize the Timer when this  application inits. So can we delete this code but write a function init() in Timer interface, and in the function init() of BlinkM, we call the timer.init().
   
  Does this work?
  thanks!
  Sam

       
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