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7<TITLE>CTRDG_EraseAgbFlashChip</TITLE>
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11<H1 align="left">CTRDG_EraseAgbFlashChip <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>u16 CTRDG_EraseAgbFlashChip(void);
17  </CODE></PRE>
18Corresponding AGB function: <A href="coordinate.html"><CODE>u16 (*EraseFlashChip)()</CODE></A>
19</DL>
20<H2>Arguments</H2>
21<p>None.</p>
22<H2>Return Values</H2>
23<P>Returns zero if the erasure succeeds. Returns a nonzero value if it fails.</P>
24<H2>Description</H2>
25<P>Completely erases all data on the AGB backup device chip.</P>
26<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>
27<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>
28<P>Note that the AGB backup device cannot be accessed normally with IS-NITRO-DEBUGGER version 1.66 or earlier.</P>
29<H2>See Also</H2>
30<P><A href="CTRDG_EraseAgbFlashSector.html"><CODE>CTRDG_EraseAgbFlashSector</CODE></A><BR> <A href="CTRDG_EraseAgbFlashChipAsync.html"><CODE>CTRDG_EraseAgbFlashChipAsync</CODE></A><BR> <A href="CTRDG_EraseAgbFlashSectorAsync.html"><CODE>CTRDG_EraseAgbFlashSectorAsync</CODE></A></P>
31<H2>Revision History</H2>
32<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>
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