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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>DSCDACALPARAMS - 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'>DSCDACALPARAMS</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 parameters used in D/A auto-calibration.
<p>
<h2><a name="Structure_Definition">Structure Definition</a></h2>
<p>
typedef struct {
<pre> DFLOAT darange;
FLOAT offset;
FLOAT gain;
BOOL ch0pol, ch0prog, ch0ext;
BOOL ch1pol, ch1prog, ch1ext;
</pre><p>
} DSCDACALPARAMS;
<p>
<h2><a name="Structure_Members">Structure Members</a></h2>
<p>
<table border=1><tr ><TH>Name</TH><TH>Description</TH></tr><tr ><TD>darange</TD><TD>Desired full-scale voltage for custom D/A range setting, in volts. Used only when in Programmable mode, otherwise ignored. Range is anywhere between 1.0 and 10.0 in increments of .001.</TD></tr><tr ><TD>offset</TD><TD>Error in D/A LSB counts at the mid-scale of the D/A range</TD></tr><tr ><TD>gain</TD><TD>Error in D/A LSB counts at the full-scale (high end) of the D/A range</TD></tr></table><p>
The following parameters are used only on Diamond-MM-AT. This board has independent D/A settings for each analog output channel. The parameters below correspond to the jumper settings on the board.
<p>
<table border=1><tr ><TH>Name</TH><TH>Description</TH></tr><tr ><TD>ch0pol, ch1pol</TD><TD>Polarity setting for each D/A channel: 0 = bipolar, 1 = unipolar</TD></tr><tr ><TD>ch0prog, ch1prog</TD><TD>Programmable setting for each D/A channel: 0 = fixed range, 1 = programmable range</TD></tr><tr ><TD>ch0ext, ch1ext</TD><TD>Reference source for each D/A channel: 0 = internal, 1 = external</TD></tr></table><p></div><p><em> <br> This page was last modified 00:08, 30 Jan 2004.<br>Copyright (c) 2004 Diamond Systems. All Rights Reserved.</em><!-- Time since request: 0.15 secs. --></body></html>⌨️ 快捷键说明
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