<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi Dave,</div><div><br></div><div>No mystery, just got my hands on a 8049 from an "upgraded" SH as a loner, and decided to have a stab at reading the firmware. It's all described in the Intel 1990 Embedded Controllers Handbook.</div><div>Didn't even realize you can do that.</div><div><br></div><div>Just for learning, but ordered some 8749s to play with (eprom version) , and building two versions of a programmer for that one. </div><div><br></div><div>One is a kludge using my old DOS eprom programmer and the other is a parallel port job from an article in Circuit Cellar Ink, and uses (cough) Pascal little proggie.</div><div><br></div><div>Someone more clever than moi has already done upgrades for 8048/9 mono and polys, but I am not interesting in buying anything nor do I own an SH-101.</div><div><br></div><div>Anyway nothing earth shattering actually.</div><div><br></div><div>I don't mind sharing the annotated source code once it's done, by the way. </div><div><br></div><div>Tony K</div><div><br>On Mar 17, 2017, at 2:19 PM, "Dave Magnuson" <<a href="mailto:abide@dmdrafting.com">abide@dmdrafting.com</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><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> </o:p></span></p><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Synth-diy [<a href="mailto:synth-diy-bounces@synth-diy.org">mailto:synth-diy-bounces@synth-diy.org</a>] <b>On Behalf Of </b>Tony Kalomiris<br><b>Sent:</b> Friday, March 17, 2017 2:07 PM<br><b>To:</b> Synth DIY<br><b>Subject:</b> [sdiy] Fwd: Odp: Re: Analysis of the TB-303 CPU timing<o:p></o:p></span></p><p class="MsoNormal"><o:p> </o:p></p><div><p class="MsoNormal"><o:p> </o:p></p><div><p class="MsoNormal" style="margin-bottom:12.0pt">---------- Forwarded message ----------<br>From: <b>Tony Kalomiris</b> <<a href="mailto:weplar@gmail.com">weplar@gmail.com</a>><br>Date: Fri, Mar 17, 2017 at 2:06 PM<br>Subject: Re: [sdiy] Odp: Re: Analysis of the TB-303 CPU timing<br>To: <a href="mailto:chromatest@azburners.org">chromatest@azburners.org</a><br><br><o:p></o:p></p><p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><snipped bits re:303><o:p></o:p></span></p><div><div><div><p class="MsoNormal">Yes I am a masochist, I read out the SH-101 bit by bit before I wired something up to do it automatically.<o:p></o:p></p></div><div><p class="MsoNormal"><o:p> </o:p></p></div><div><p class="MsoNormal">Tony K <o:p></o:p></p></div></div></div><div><div><div><p class="MsoNormal"><o:p> </o:p></p><div><div><div><div><p class="MsoNormal"><br><span style="color:#1F497D">So Tony, what are you up to with the SH-101? You’ve mentioned it twice and I’m getting curious now…. </span><span style="font-family:Wingdings;color:#1F497D">J</span><span style="color:#1F497D"><o:p></o:p></span></p><p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="color:#1F497D">Dave M</span><br><br><br><br><o:p></o:p></p></div></div></div></div><p class="MsoNormal"><o:p> </o:p></p></div></div></div></div><p class="MsoNormal"><o:p> </o:p></p></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Synth-diy mailing list</span><br><span><a href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a></span><br><span><a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a></span><br></div></blockquote></body></html>