{"id":4445,"date":"2011-08-03T02:05:06","date_gmt":"2011-08-03T00:05:06","guid":{"rendered":"https:\/\/monocultured.com\/blog\/?p=4445"},"modified":"2011-08-03T02:05:06","modified_gmt":"2011-08-03T00:05:06","slug":"doing-the-reprap-5-%e2%80%94%c2%a0the-fun-of-frying","status":"publish","type":"post","link":"https:\/\/monocultured.com\/blog\/doing-the-reprap-5-%e2%80%94%c2%a0the-fun-of-frying\/","title":{"rendered":"Doing the RepRap #5 \u2014\u00a0The fun of frying"},"content":{"rendered":"<p><em>Good god damn goat balls.<\/em><\/p>\n<p>I finally got the bootloader onto the ATMega \u2014\u00a0thanks to a lot of trial and error and handwringing and help from ethereal beings on the Internets and KKV, and with the motors and Pololus installed I hook the PSU into the board and the LEDs are shining and \u2014 wait a minute, isn&#8217;t the processor a teensy bit too hot? Oh, let&#8217;s touch it \u2014 well whaddayaknow, it&#8217;s blistering my finger, how peculiar!<\/p>\n<p>As it turns out, I&#8217;ve soldered the Molex connector the wrong way around, so am feeding 5V to where I need 12V and vice versa. Which means some components are now fucked, possibly including the ATMega. I guess I ought to be grateful that none of the capacitors blew up in my face, but right now I&#8217;m just going to bed.<\/p>\n<p>Below are some helpful links left for future reference<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/monocultured.com\/blog\/wp-content\/uploads\/2011\/08\/bild.jpg\" alt=\"\" title=\"bild\" width=\"640\" height=\"427\" class=\"alignnone size-full wp-image-4465\" \/><\/p>\n<p>I found a good description for what the bootloading process is about here: http:\/\/smileymicros.com\/blog\/2011\/03\/04\/busy-as-a-beavratmega644-on-a-breadboard\/<\/p>\n<p>Resources on what AVR&#8217;s are: <a href=\"http:\/\/www.evilmadscientist.com\/article.php\/avrstuff\">http:\/\/www.evilmadscientist.com\/article.php\/avrstuff<\/a><\/p>\n<p>A tutorial on what AVR programming is about, somewhat technical: <a href=\"http:\/\/www.ladyada.net\/learn\/avr\/\">http:\/\/www.ladyada.net\/learn\/avr\/<\/a><\/p>\n<p>Using the AVR ISP MkII as a programmer to bootload ATMegas. Relevant if I get me the programmer, but can give inside into the process: <a href=\"http:\/\/www.arduino.cc\/playground\/Code\/OSXISPMKII\">http:\/\/www.arduino.cc\/playground\/Code\/OSXISPMKII<\/a><\/p>\n<p>Crosspack is a complete AVR developing package, not sure how to implement the homebrewn boards there, but the bootloaders should be more or less generic, right? <a href=\"http:\/\/www.obdev.at\/products\/crosspack\/index-de.html\">http:\/\/www.obdev.at\/products\/crosspack\/index-de.html<\/a><\/p>\n<p>Wormfood has a baud to Mhz calculator here, which I&#8217;m sure is good for something down the line: <a href=\"http:\/\/www.wormfood.net\/avrbaudcalc.php?postbitrate=&#038;postclock=1&#038;bit_rate_table=on\">www.wormfood.net<\/a><\/p>\n<p>A thread started in 2006 about the process of getting the Arduino to act as an ISP, which I never succeeded in doing: <a href=\"http:\/\/www.arduino.cc\/cgi-bin\/yabb2\/YaBB.pl?num=1165363464\/0\">Turn Arduino into an ISP programmer<\/a><\/p>\n<p>The schematics for my model of Arduino, the old NG, are here: <a href=\"http:\/\/arduino.cc\/en\/uploads\/Main\/arduino_NG_schematic.png\">arduino_NG_schematic.png<\/a> and there&#8217;s a description of most of the parts and ports here: <a href=\"http:\/\/www.arduino.cc\/en\/Guide\/Board?from=Tutorial.ArduinoBoard\">www.arduino.cc<\/a><\/p>\n<p>I&#8217;m not sure of what this page does but it seems handy: <a href=\"http:\/\/www.sengpielaudio.com\/calculator-ohm.htm\">http:\/\/www.sengpielaudio.com\/calculator-ohm.htm<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Good god damn goat balls. I finally got the bootloader onto the ATMega \u2014\u00a0thanks to a lot of trial and error and handwringing and help from ethereal beings on the Internets and KKV, and with the motors and Pololus installed I hook the PSU into the board and the LEDs are shining and \u2014 wait &hellip; <a href=\"https:\/\/monocultured.com\/blog\/doing-the-reprap-5-%e2%80%94%c2%a0the-fun-of-frying\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Doing the RepRap #5 \u2014\u00a0The fun of frying<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,279,546],"tags":[829,1888,1504,1505,108,1507,1508,1506,1060,1393,1500],"class_list":["post-4445","post","type-post","status-publish","format-standard","hentry","category-found","category-photography","category-projects","tag-3d-printing","tag-art","tag-atmega644","tag-despair","tag-diy","tag-electricity","tag-failure","tag-mistake","tag-process","tag-reprap","tag-research"],"_links":{"self":[{"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/posts\/4445","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/comments?post=4445"}],"version-history":[{"count":21,"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/posts\/4445\/revisions"}],"predecessor-version":[{"id":4467,"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/posts\/4445\/revisions\/4467"}],"wp:attachment":[{"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/media?parent=4445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/categories?post=4445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/monocultured.com\/blog\/wp-json\/wp\/v2\/tags?post=4445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}