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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>One thought, maybe do something like:<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&nbsp;&nbsp;&nbsp; </span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:red'>If </span><span style='font-size:
10.0pt;font-family:"Arial","sans-serif";color:red'>length(sRaw) &gt;0 then</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
for i:=1 to length(sRaw) do<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try iData[i]:=
byte(sRaw[i])<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; except<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
end;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>This will only do the for loop if sRaw is not empty. Just a
thought. <o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I do agree with Paul, Async Pro is very good. I have used it for
YEARS and its very reliable.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If you want to try it out, its on sourceforge now. We actually
bought them before they went open source </span><span style='font-size:11.0pt;
font-family:Wingdings;color:#1F497D'>L</span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Jeremy<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> delphi-bounces@delphi.org.nz
[mailto:delphi-bounces@delphi.org.nz] <b>On Behalf Of </b>Marshland Engineering<br>
<b>Sent:</b> Sunday, 14 August 2011 21:57<br>
<b>To:</b> delphi@delphi.org.nz<br>
<b>Subject:</b> [DUG] Access Violation<o:p></o:p></span></p>

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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Not
sure where to go with this.</span><o:p></o:p></p>

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<p class=MsoNormal>&nbsp;<o:p></o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I'm
sending 3 bytes of&nbsp;data&nbsp; at 38400 baud every 500 ms. If I speed up
the&nbsp;rate to every 250 ms I get &nbsp;</span>&nbsp;<o:p></o:p></p>

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<p class=MsoNormal>&nbsp;<o:p></o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Access
Violation at address 004934CA in Mmodule Dyno.exe' Write address 000000F2&nbsp;</span><o:p></o:p></p>

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<p class=MsoNormal>&nbsp;<o:p></o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Code
&nbsp; </span><o:p></o:p></p>

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<p class=MsoNormal>&nbsp;<o:p></o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>&nbsp;&nbsp;&nbsp;
if SerialPortNG.NextClusterSize &gt;= 0 then begin<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
sRaw:=SerialPortNG.ReadNextClusterAsString;<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for i:=1 to length(sRaw) do<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; try iData[i]:=
byte(sRaw[i])<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; except<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
end;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><o:p></o:p></p>

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<p class=MsoNormal>&nbsp;<o:p></o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
don't know what I'm looking for. </span><o:p></o:p></p>

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<p class=MsoNormal>&nbsp;<o:p></o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks
Wallace</span><o:p></o:p></p>

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<p class=MsoNormal>&nbsp;<o:p></o:p></p>

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