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7<TITLE>CTRDG_EraseAgbFlashChipAsync</TITLE>
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11<H1 align="left">CTRDG_EraseAgbFlashChipAsync <IMG src="../image/NTR.gif" align="middle"></H1>
12<H2>Syntax</H2>
13<DL>
14  <DD>
15  <PRE><CODE>#include &lt;nitro/ctrdg.h&gt;</CODE></PRE>
16  <PRE><CODE>void CTRDG_EraseAgbFlashChipAsync(CTRDG_TASK_FUNC callback);
17  </CODE></PRE>
18</DL>
19<H2>Arguments</H2>
20<TABLE border="1">
21  <TBODY>
22    <TR>
23<TD><SPAN class="argument">callback</SPAN></TD>
24<TD>Callback function called when the data erase process ends</TD>
25    </TR>
26  </TBODY>
27</TABLE>
28<H2>Return Values</H2>
29<P>None.</P>
30<H2>Description</H2>
31<P>Completely erases all data on the AGB backup device chip asynchronously. To find out whether the Erase process succeeded, access the result member of the <CODE>CTRDGTaskInfo</CODE> structure used as an argument to the callback function that returns after this routine is called. Returns zero if the Erase process succeeded and a nonzero value if it failed.</P>
32<P>The access cycle setting does not need to be set beforehand because it is created inside the function. In addition, the <A href="../os/time/OS_InitTick.html"><CODE>OS_InitTick</CODE></A> function must be called in advance because clock ticks are used by this function to measure timeouts.</P>
33<P><B>Note:</B> All interrupts are disabled inside this function, and the cartridge bus is locked for a set period. In particular, when this function is called, do not use DMA that starts automatically during direct sound and V/H blank synchronization, display synchronization, cartridge request, and so on.</P>
34<P>Note that the AGB backup device cannot be accessed normally with IS-NITRO-DEBUGGER version 1.66 or earlier.</P>
35<PRE>/*  callback  function  */
36typedef u32 (*CTRDG_TASK_FUNC) (struct CTRDGiTaskInfo_tag *);
37</PRE>
38<H2>See Also</H2>
39<P><A href="CTRDG_EraseAgbFlashChip.html"><CODE>CTRDG_EraseAgbFlashChip</CODE></A><BR> <A href="CTRDG_EraseAgbFlashSector.html"><CODE>CTRDG_EraseAgbFlashSector</CODE></A><BR> <A href="CTRDG_EraseAgbFlashSectorAsync.html"><CODE>CTRDG_EraseAgbFlashSectorAsync</CODE></A></P>
40<H2>Revision History</H2>
41<P>2006/05/25 Added a description that the AGB backup device cannot be accessed normally with IS-NITRO-DEBUGGER version 1.66 or earlier.<BR> 2006/04/07 Initial version.</P>
42<hr><p>CONFIDENTIAL</p></body>
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