nimize the risk of data loss due to a sudden blackout, wrong media removal or unrecoverable disk error. For more information, refer to <a href="appnote.html#critical">application note</a>.</p>
<pre>
Case 1. Normal write sequence

                                Time --&gt;                                     ↓Normal shutdown
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Case 2. Without using f_sync()

                                Time --&gt;          