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8<title>GX_LoadBG1Char</title>
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14<h1 align="left">GX_LoadBG1Char <img src="../../image/NTR.gif"align="middle"><img src="../../image/TWL.gif" align="middle"></H1>
15<H2>Syntax</H2>
16
17<dl>
18  <dd>
19<PRE>
20<CODE>#include &lt;nitro/gx/gx_load.h&gt;</CODE><BR>
21<CODE>void GX_LoadBG1Char(const void *pSrc, u32 offset, u32 szByte);</CODE></PRE></dd>
22</dl><h2>Arguments</h2>
23<TABLE border="1" width="100%">
24  <TBODY>
25    <TR>
26      <TD width="190"><em><strong><font face="Courier New">pSrc</font></strong></em></TD>
27      <TD width="512">Pointer to transfer origin</TD>
28    </TR>
29    <TR>
30      <TD width="190"><em><strong><font face="Courier New">offset</font></strong></em></TD>
31      <TD width="512">Offset</TD>
32    </TR>
33    <TR>
34      <TD width="190"><em><strong><font face="Courier New">szByte</font></strong></em></TD>
35      <TD width="512">Transfer size (in bytes)</TD>
36    </TR>
37  </TBODY>
38</TABLE>
39<h2>Return Values</h2>
40<p>None.</p>
41<H2>Description</H2>
42<P>This function uses DMA to transfer character data to the BG1 character data base address in the Main 2D Engine BG-VRAM. An offset can be specified for the transfer destination address. The DMA channel that is used is <code>GX_DMAID</code> (defined in <code>gxcommon.h</code>). Both <em><strong><code>offset</code></strong></em> and <em><strong><code>szByte</code></strong></em> must be 4-byte aligned. The transfer destination address is <CODE>(u32) <A href="../g2/G2_GetBG1CharPtr.html">G2_GetBG1CharPtr()</A></CODE> + <SPAN class="argument">offset</SPAN>.</P>
43<P><B>Notes:</B> Because the DMA transfer is carried out internally, the transfer source data must be written to main memory in advance using a function such as <CODE><A href="../../os/cache/DC_FlushRange.html" target="_self">DC_FlushRange</A></CODE>.<BR>If the regions for transfer source and transfer destination overlap, the operation result is not guaranteed.</P>
44<h2>See Also</h2>
45<P><code><A href="GX_LoadBGPltt.html">GX_LoadBGPltt</A></code>, <code><A href="GX_LoadBG1Scr.html">GX_LoadBG1Scr</A></code></P>
46<H2>Revision History</H2>
47<P>2004/02/09</P>
48<UL>
49  <LI>Revised and expanded the description.
50</UL>
51<P>2004/01/19 Initial version.</P>
52<hr><p>CONFIDENTIAL</p></body>
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