pci7422.htm

c语言经典教程

style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>1</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．通道数：</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>单端</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>32</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>路模拟量</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>2</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．输入电压：</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'>0</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>～</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>5V</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>，</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'>0</span><span style='mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;letter-spacing:.25pt'>～</span><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>10V</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>，±</span><span lang=EN-US style='font-family:Arial;
mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'>2.5V</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>，±</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>5V</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>，±</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'>10V<o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>3</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．输入阻抗：</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span></span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>大于</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>1M</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>Ω</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>4</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．</span><span lang=EN-US style='font-family:Arial;
mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'>AD</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>转换时间：</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'><span style='mso-spacerun:yes'>&nbsp;
</span>10</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>μ</span><span lang=EN-US style='font-family:Arial;
mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'>S <o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>5</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．转换误差：</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span></span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>≤</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>0.1</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>％电压满量程</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>6</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．分辩率：</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>二进制</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>12</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>位</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>7</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．输出码制：</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span></span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>二进制偏移码</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>8</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．</span><span lang=EN-US style='font-family:Arial;
mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'>AD</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>启动方式：</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'><span style='mso-spacerun:yes'>&nbsp;
</span></span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>程序启动</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>9</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．</span><span lang=EN-US style='font-family:Arial;
mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'>16</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>路</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>TTL</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>电平开关量输入</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:24.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>10</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．</span><span lang=EN-US style='font-family:Arial;
mso-bidi-font-family:"Times New Roman";letter-spacing:.25pt'>16</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>路</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>TTL</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>电平开关量输出，输出带锁存，上电清零</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:22.8pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>11</span><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:
Arial;letter-spacing:.25pt'>．</span><span style='mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial'>电源电压</span><span lang=EN-US style='font-family:
Arial;mso-bidi-font-family:"Times New Roman"'>:<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span>+5V</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>±</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>5</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>％，</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>+12V</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>±</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>5</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>％，</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>-12V</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>±</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>5</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>％</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:22.8pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>12</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>．物理</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>I/O</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>地址：</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'>BASE+0H</span><span style='mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;letter-spacing:.25pt'>～</span><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'>BASE+07H</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman"'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>12</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>．工作温度范围：</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>0</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>～</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'>55</span><span style='mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;letter-spacing:.25pt'>℃</span><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:18.0pt'><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'><span style='mso-spacerun:yes'>&nbsp;</span>13</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>．外形尺寸：</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'><span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>126mm(</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial;letter-spacing:
.25pt'>长</span><span lang=EN-US style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";letter-spacing:.25pt'>)</span><span style='mso-ascii-font-family:
Arial;mso-hansi-font-family:Arial;letter-spacing:.25pt'>×</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
letter-spacing:.25pt'>106.7mm</span><span style='mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;letter-spacing:.25pt'>（宽）</span><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";letter-spacing:
.25pt'><o:p></o:p></span></p>

<h2><span style='mso-ascii-font-family:Arial'>三、工作原理</span><span lang=EN-US
style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'><o:p></o:p></span></h2>

<h3><span style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>工作原理框图：（图</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'>1</span><span
style='mso-ascii-font-family:Arial;mso-hansi-font-family:Arial'>）</span><span
lang=EN-US style='font-family:Arial;mso-bidi-font-family:"Times New Roman"'><o:p></o:p></span></h3>

<p class=MsoNormal><!--[if gte vml 1]><v:rect id="_x0000_s2051" style='position:absolute;
 margin-left:191.95pt;margin-top:.65pt;width:24pt;height:66pt;z-index:1'
 o:allowincell="f">
 <v:textbox style='mso-next-textbox:#_x0000_s2051' inset="1mm,1mm,1mm,1mm">
  <![if !mso]>
  <table cellpadding=0 cellspacing=0 width="100%">
   <tr>
    <td><![endif]>
    <div>
    <p class=MsoNormal align=center style='text-align:center'><span
    style='mso-ascii-font-family:"Times New Roman"'>多选开关</span><span
    lang=EN-US style='font-family:"Times New Roman"'><o:p></o:p></span></p>
    </div>
    <![if !mso]></td>
   </tr>
  </table>
  <![endif]></v:textbox>
</v:rect><v:line id="_x0000_s2055" style='position:absolute;z-index:4' from="149.95pt,33.75pt"
 to="192.45pt,33.75pt" o:allowincell="f"/><v:shapetype id="_x0000_t202"
 coordsize="21600,21600" o:spt="202" path="m,l,21600r21600,l21600,xe">
 <v:stroke joinstyle="miter"/>
 <v:path gradientshapeok="t" o:connecttype="rect"/>
</v:shapetype><v:shape id="_x0000_s2057" type="#_x0000_t202" style='position:absolute;
 margin-left:221.95pt;margin-top:27.25pt;width:18pt;height:24pt;z-index:5'
 o:allowincell="f" strokecolor="white">
 <v:textbox style='layout-flow:vertical-ideographic;mso-next-textbox:#_x0000_s2057'>
  <![if RotText]><![if !mso]>
  <table cellpadding=0 cellspacing=0 width="100%">
   <tr>
    <td><![endif]>
    <div>
    <p class=MsoNormal><span style='font-size:6.5pt;mso-bidi-font-size:10.0pt'>。。。<span
    lang=EN-US><o:p></o:p></span></span></p>
    </div>
    <![if !mso]></td>
   </tr>
  </table>
  <![endif]><![endif]></v:textbox>
</v:shape><v:shape id="_x0000_s2059" type="#_x0000_t202" style='position:absolute;
 margin-left:245.95pt;margin-top:16.35pt;width:24pt;height:18pt;z-index:6'
 o:allowincell="f" strokecolor="white">
 <v:textbox style='mso-next-textbox:#_x0000_s2059' inset=".5mm,.3mm,.5mm,.3mm">
  <![if !mso]>
  <table cellpadding=0 cellspacing=0 width="100%">
   <tr>
    <td><![endif]>
    <div>
    <p class=MsoFooter><span lang=EN-US>AD</span><span lang=EN-US
    style='font-size:7.5pt;mso-bidi-font-size:10.0pt'>1</span></p>
    </div>
    <![if !mso]></td>
   </tr>
  </table>
  <![endif]></v:textbox>
</v:shape><v:line id="_x0000_s2061" style='position:absolute;z-index:7' from="216.05pt,23.85pt"
 to="246.05pt,23.85pt" o:allowincell="f"/><v:shape id="_x0000_s2070" type="#_x0000_t202"
 style='position:absolute;margin-left:245.95pt;margin-top:1.75pt;width:24pt;
 height:18pt;z-index:9' o:allowincell="f" strokecolor="white">
 <v:textbox style='mso-next-textbox:#_x0000_s2070' inset=".5mm,.3mm,.5mm,.3mm">
  <![if !mso]>
  <table cellpadding=0 cellspacing=0 width="100%">
   <tr>
    <td><![endif]>
    <div>
    <p class=MsoFooter><span lang=EN-US>AD</span><span lang=EN-US
    style='font-size:7.5pt;mso-bidi-font-size:10.0pt'>0</span></p>
    </div>
    <![if !mso]></td>
   </tr>
  </table>
  <![endif]></v:textbox>
</v:shape><v:shape id="_x0000_s2074" type="#_x0000_t202" style='position:absolute;
 margin-left:245.35pt;margin-top:47.05pt;width:30pt;height:18pt;z-index:10'
 o:allowincell="f" strokecolor="white">
 <v:textbox style='mso-next-textbox:#_x0000_s2074' inset=".5mm,.3mm,.5mm,.3mm">
  <![if !mso]>
  <table cellpadding=0 cellspacing=0 width="100%">
   <tr>
    <td><![endif]>
    <div>
    <p class=MsoFooter><span lang=EN-US>AD</span><span lang=EN-US
    style='font-size:7.5pt;mso-bidi-font-size:10.0pt'>31</span></p>