1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<HTML> 3<HEAD> 4<META http-equiv="Content-Type" content="text/html; charset=windows-1252"> 5<META name="GENERATOR" content="IBM WebSphere Studio Homepage Builder Version 7.0.0.0 for Windows"> 6<META http-equiv="Content-Style-Type" content="text/css"> 7<TITLE>OS_ClearIrqCheckFlag</TITLE> 8<LINK rel="stylesheet" href="../../css/nitro.css" type="text/css"> 9</HEAD> 10<BODY> 11<H1 align="left">OS_ClearIrqCheckFlag <IMG src="../../image/NTR.gif" align="middle"><IMG src="../../image/TWL.gif" align="middle"></H1> 12<H2>Syntax</H2> 13<DL> 14 <DD><CODE>#include <nitro/os.h></CODE><BR> 15 <BR> 16 <CODE>void OS_ClearIrqCheckFlag( OSIrqMask intr );</CODE> 17</DL> 18<H2>Arguments</H2> 19<TABLE border="1"> 20 <TBODY> 21 <TR> 22 <TD><B><I>intr</I></B></TD> 23 <TD>Shows, as a logical sum, the IRQ interrupt cause that will clear the check flag.</TD> 24 </TR> 25 </TBODY> 26</TABLE> 27<H2>Return Values</H2> 28<P>None.</P> 29<H2>Description</H2> 30<P>Clears IRQ interrupt check flags</P> 31<P>These flags are normally set by the interrupt handler of each IRQ interrupt. For information on the types of flags, see <a href="OS_SetIrqCheckFlag.html"><code>OS_SetIrqCheckFlag</code></a>.</P> 32<H2>See Also</H2> 33<P><a href="OS_SetIrqCheckFlag.html"><code>OS_SetIrqCheckFlag</code></a>, <a href="OS_GetIrqCheckFlag.html"><code>OS_GetIrqCheckFlag</code></a></P> 34<H2>Internal Operation</H2> 35<P>In the ARM9, the predetermined location <code>DTCM_END - 8</code> in DTCM is designated as the check flag region. This function operates on this region. In the ARM7, the predetermined location of the ARM7 WRAM (highest address - 8) is designated as the check flag region. The function operates on this region.</P> 36<H2>Revision History</H2> 37<P> 382005/03/08 Standardized Japanese term for "interrupt."<br>2004/11/02 Deleted <CODE>SVC_WaitIntr()</CODE> from "See Also."<BR> 2004/04/06 Initial version.</P> 39<hr><p>CONFIDENTIAL</p></body> 40</HTML>
