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Old January 27th, 2015   #6
Join Date: Feb 2006
Posts: 432
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Originally Posted by alvangee View Post

On the other hand, for me it looks just not right to send an ACK to any "change important parameter" command before this parameter was securely stored in nonvolatile memory of any sort. There is a possibility that after sending ACK the power of device was shut down and after restart there will be undesirebale parameter value.
Was this issue ever been discussed?
Yes, its been discussed a number of times. It really is up to the implementer. In some cases where the write operation is considered to be reliable enough a regular ACK will be used. Others that are more concerned with the outcome of the write operation will use the ACK_TIMER so they can verify the write occurred successfully. In the end it's really your choice.
Scott M. Blair
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