<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:13px"><div id="yui_3_16_0_1_1456398745805_3101" dir="ltr"><span id="yui_3_16_0_1_1456398745805_3169">The MAX11300 is quite impressive. I like the fact that is has its own GUI software for design. Check out these video <a href="https://www.maximintegrated.com/en/design/videos.html/vd_3706719587001" id="yui_3_16_0_1_1456398745805_3273">https://www.maximintegrated.com/en/design/videos.html/vd_3706719587001</a> </span></div><div></div><div id="yui_3_16_0_1_1456398745805_3097"> </div><div class="signature" id="yui_3_16_0_1_1456398745805_3046"><div id="yui_3_16_0_1_1456398745805_3045"><font size="2" id="yui_3_16_0_1_1456398745805_3096">Sincerely, <br> </font></div><div id="yui_3_16_0_1_1456398745805_3119"><font size="2" id="yui_3_16_0_1_1456398745805_3118">Chris Juried <br>Audio Engineering Society (AES) <var id="yui-ie-cursor"></var>Member <br>InfoComm-Recognized AV Technologist</font><span class="postbody" id="yui_3_16_0_1_1456398745805_3121"><br><a rel="nofollow" target="_blank" href="http://www.juriedengineering.com/" id="yui_3_16_0_1_1456398745805_3120">http://www.JuriedEngineering.com</a> (Juried Engineering, LLC.)</span></div><div id="yui_3_16_0_1_1456398745805_3126"><font size="3" id="yui_3_16_0_1_1456398745805_3125"><font size="2" id="yui_3_16_0_1_1456398745805_3128"><br>This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any distribution or copying of this email, and any attachments thereto, is strictly prohibited. If you have received this email in error, please immediately notify me at (754) 300-9972 and permanently delete the original and any copy of any e-mail and any printout thereof.</font></font><br></div></div><div class="qtdSeparateBR" id="yui_3_16_0_1_1456398745805_3170"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1456398745805_3174" style="display: block;"> <div style="font-family: verdana, helvetica, sans-serif; font-size: 13px;" id="yui_3_16_0_1_1456398745805_3173"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1456398745805_3172"> <div dir="ltr" id="yui_3_16_0_1_1456398745805_3171"> <font size="2" face="Arial" id="yui_3_16_0_1_1456398745805_3175"> <hr size="1" id="yui_3_16_0_1_1456398745805_3190"> <b><span style="font-weight:bold;">From:</span></b> Johannes Taelman <johannes.taelman@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> Colin Hinz <lists@meccanion.com> <br><b><span style="font-weight: bold;">Cc:</span></b> synth diy <synth-diy@dropmix.xs4all.nl><br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, February 24, 2016 5:15 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [sdiy] Axoloti CV capabilities?<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1456398745805_3176"><br><div id="yiv2258783154"><div id="yui_3_16_0_1_1456398745805_3179"><div dir="ltr" id="yui_3_16_0_1_1456398745805_3178"><span class="yiv2258783154im" id="yui_3_16_0_1_1456398745805_3177">(just noticed I replied off-list, replying to the list is not the default?)<br clear="none"></span><div id="yui_3_16_0_1_1456398745805_3180"><span class="yiv2258783154im" id="yui_3_16_0_1_1456398745805_3281"><br clear="none">On Tue, Feb 23, 2016 at 7:48 PM, Colin Hinz <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:lists@meccanion.com" target="_blank" href="mailto:lists@meccanion.com">lists@meccanion.com</a>></span> wrote:<br clear="none"><br clear="none"></span><blockquote class="yiv2258783154gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;" id="yui_3_16_0_1_1456398745805_3182">
- A/D hardware on Axoloti is optimized for low-precision things like<br clear="none">
pots and similar sensors, so CV in requires external buffer/scaling<br clear="none">
and its own A/D. (For want of a proper Vref??? :( :( :( )<br clear="none"></blockquote><div id="yui_3_16_0_1_1456398745805_3282"><br clear="none"></div><div>You could inject your own precision supply to VDDA after removing R1.<br clear="none"></div><div id="yui_3_16_0_1_1456398745805_3283">Check the Axoloti schematics and STM32F427 datasheet for details.<br clear="none"></div><div id="yui_3_16_0_1_1456398745805_3284">Still STM32F4 is not exactly famous for low noise ADC.<br clear="none"></div><span class="yiv2258783154im"></span><div id="yui_3_16_0_1_1456398745805_3285"> <br clear="none"></div><blockquote class="yiv2258783154gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;">
Has anybody developed a generic CV I/O board for use with digital<br clear="none">
beasties?<br clear="none"></blockquote><div id="yui_3_16_0_1_1456398745805_3218"><br clear="none"></div><div>One option perhaps is the MAX11300, there is a cheap eval kit for it : MAX11300PMB1<br clear="none"></div><div>less than 99 channels, but still 20, and every port can be adc, dac, digital in or digital out...<br clear="none"></div><div id="yui_3_16_0_1_1456398745805_3192">I haven't tried it or developed a specific object for it.<br clear="none"><br clear="none"></div><div>Has anyone used MAX11300 in a eurorack context?<br clear="none"></div><span class="yiv2258783154im"></span><div id="yui_3_16_0_1_1456398745805_3216"> </div><blockquote class="yiv2258783154gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;">
Though it sounds like, at least at the moment, the axoloti platform<br clear="none">
lacks the software 'hooks' to talk SPI to an interface. Aaaargh.<br clear="none"></blockquote><div><br clear="none"></div><div>Not true, you'll find SPI master examples in the community forum.<div class="yiv2258783154yqt4319318632" id="yiv2258783154yqtfd90691"><br clear="none"></div></div><div class="yiv2258783154yqt4319318632" id="yiv2258783154yqtfd64967"><span class="yiv2258783154im"></span><div> </div></div><blockquote class="yiv2258783154gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;" id="yui_3_16_0_1_1456398745805_3187"><div class="yiv2258783154yqt4319318632" id="yiv2258783154yqtfd86749">
Very interesting platform, even though it's a bit of a 'diamond<br clear="none">
in the rough'....</div><span><font color="#888888"><br clear="none"></font></span></blockquote><div><br clear="none"></div>Thanks!<br clear="none"><br clear="none"></div><div>Diamonds are forever :)<div class="yiv2258783154yqt4319318632" id="yiv2258783154yqtfd37815"><br clear="none"></div></div></div></div></div><br><div class="yqt4319318632" id="yqtfd31640">_______________________________________________<br clear="none">Synth-diy mailing list<br clear="none"><a shape="rect" ymailto="mailto:Synth-diy@dropmix.xs4all.nl" href="mailto:Synth-diy@dropmix.xs4all.nl">Synth-diy@dropmix.xs4all.nl</a><br clear="none"><a shape="rect" href="http://dropmix.xs4all.nl/mailman/listinfo/synth-diy" target="_blank">http://dropmix.xs4all.nl/mailman/listinfo/synth-diy</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>