📄 manual_da_calibration_verification.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html lang="en"><head><title>DA Calibration Verification - 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'>DA Calibration Verification</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'><h3><a name="Description"> Description </a></h3>
<p>
On supported boards (-AT boards), after performing a D/A autocalibration, you can verify the accuracy of the calibration. This function will return the offset and gain error of each range in LSBs.
<p>
The default D/A calibration tolerance for all boards is +/-2LSBs. In general autocalibration will result in errors of +/-1LSB or less.
<p>
<h3><a name="Step-By-Step_Instructions"> Step-By-Step Instructions </a></h3>
<p>
Create and initialize a D/A auto-calibration settings structure (<a href="manual_DSCDACALPARAMS.html" class='printable' title ="DSCDACALPARAMS">DSCDACALPARAMS</a>).
<p>
Call <tt><a href="manual_DscDACalVerify.html" class='printable' title ="DscDACalVerify">dscDACalVerify</a>()</tt> and pass it a pointer to this structure in order to verify the D/A calibration of the board. The elements offset and gain of <tt><a href="manual_DSCDACALPARAMS.html" class='printable' title ="DSCDACALPARAMS">DSCDACALPARAMS</a></tt> will contain the error in LSB counts for D/A operations. Values of less than 2 are within tolerance.
<p>
<h3><a name="Example_of_Usage_for_D/A_Calibration_Verification"> Example of Usage for D/A Calibration Verification </a></h3>
<p>
<pre>...
DSCB dscb;
DSCDACALPARAMS dscdacalparams;
BYTE result;
...
/* Step 1 - verify the programmable range calibration from previous example */
dscdacalparams.da_range = 4.096;
/* Step 2 */
if ((result = dscDACalVerify(dscb, &dscdacalparams)) != DE_NONE)
return result;
...</pre>
<p></div><p><em> <br> This page was last modified 00:30, 31 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
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -