📄 manual_dscoptostate.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"        "http://www.w3.org/TR/html4/loose.dtd"><html lang="en"><head><title>DSCOPTOSTATE - Universal Driver Documentation</title><meta http-equiv="Content-type" content="text/html; charset=iso-8859-1"><meta name="robots" content="index,follow"><link rel="shortcut icon" href="/favicon.ico"><link rel="stylesheet" href="/dscud/style/wikiprintable.css"><script type="text/javascript" src="/dscud/style/wikibits.js"></script><style type='text/css'><!--a.new, #quickbar a.new { color: #CC2200; }#quickbar { position: absolute; top: 4px; left: 4px; border-right: 1px solid gray; }#article { margin-left: 152px; margin-right: 4px; }//--></style></head><body bgcolor='#FFFFFF'><div class='titlebox'><h1 class='pagetitle'>DSCOPTOSTATE</h1><span class='subtitle'>Universal Driver Documentation</span></div><div class='navbox'><a href="manual_Main_Page.html" class='printable' title ="Main Page">Main Page</a> || <a href="manual_Table_of_Contents.html" class='printable' title ="Table of Contents">Table_of_Contents</a> || <a href="http://www.diamondsystems.com/">Diamond Systems Website</a></div></div><div class='bodytext'>Structure containing information on the current optoinput state of the board.  For use with the dscOptoGetState and dscOptoSetState functions.
<p>
<h2><a name="Structure_Definition">Structure Definition</a></h2>
<p>
<pre> #define DSCUD_MAX_OPTO 8
</pre><p>
typedef struct {
<p>
<pre>    BYTE edge_polarity[DSCUD_MAX_OPTO];		
    BYTE edge_detect_enab[DSCUD_MAX_OPTO];	
    BYTE edge_status[DSCUD_MAX_OPTO];		
    BYTE oint_state[DSCUD_MAX_OPTO];		
    BYTE dmm48at_oint_state;
</pre><p>
} DSCOPTOSTATE;
<p>
<h2><a name="Structure_Members">Structure Members</a></h2>
<p>
<table border=1><tr ><TH>Name</TH><TH>Description</TH></tr><tr ><TD>edge_polarity</TD><TD>Polarity state of each optoinput</TD></tr><tr ><TD>edge_detect_enab</TD><TD>Edge detect enable state of each optoinput		0 = disabled, 1 = enabled
</TD></tr><tr ><TD>edge_status</TD><TD>Edge detect status for each optoinput.		0 = no edge detected since last check
		1 = edge detected since last check
</TD></tr><tr ><TD>oint_state</TD><TD>Optoinput state (depends on polarity for boards which support this feature.)</TD></tr><tr ><TD>dmm48at_oint_state</TD><TD>When using opto edges to drive interrupts on the Diamond-MM-48-AT, the edge registers must be read (and subsequently reset) by the kernel interrupt handler before the user has a chance to read them back.  The kernel interrupt handler will save the opto state register in this location so that the user can see which edge triggered the interrupt inside of the user interrupt function.</TD></tr></table><p></div><p><em> <br> This page was last modified 01:04, 30 Jan 2004.<br>Copyright (c) 2004 Diamond Systems.  All Rights Reserved.</em><!-- Time since request: 0.15 secs. --></body></html>
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