{"id":181,"date":"2009-01-08T21:35:51","date_gmt":"2009-01-08T19:35:51","guid":{"rendered":"http:\/\/dh5ym.hopto.org\/wiki\/?p=181"},"modified":"2009-01-08T21:35:51","modified_gmt":"2009-01-08T19:35:51","slug":"atmega-8515-at-18mhz","status":"publish","type":"post","link":"https:\/\/dh5ym.hopto.org\/wiki\/?p=181","title":{"rendered":"Atmega 8515 at 18MHz&#8230;"},"content":{"rendered":"<p>I assembled a small board containing a Atmega8515 microcontroller. I used a 18.432MHz crystal for clock generation. I discovered that the circuit is very sensitive in terms of routing the ground in a correct way and keeping the crystal connections as short as possible. Now it seems to work more or less stable. The board you can see is similar to the Atmega boards a german company sells as kit. But since these boards do not support the Mega8515 and i want to use its external memory bus feature i had to create a new one&#8230;<br \/>\n<div id=\"attachment_182\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/dh5ym.hopto.org\/wiki\/?attachment_id=182\" rel=\"attachment wp-att-182\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-182\" src=\"..\/wiki\/wp-content\/uploads\/2009\/01\/dsc01735-300x225.jpg\" alt=\"Mega8515 in action making some LED\u00b4s blink ;)\" title=\"Atmega8515\" width=\"300\" height=\"225\" class=\"size-medium wp-image-182\" srcset=\"https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2009\/01\/dsc01735-300x225.jpg 300w, https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2009\/01\/dsc01735-1024x768.jpg 1024w, https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2009\/01\/dsc01735-624x468.jpg 624w, https:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2009\/01\/dsc01735.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-182\" class=\"wp-caption-text\">Mega8515 in action making some LED\u00b4s blink ;)<\/p><\/div> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>I assembled a small board containing a Atmega8515 microcontroller. I used a 18.432MHz crystal for clock generation. I discovered that the circuit is very sensitive in terms of routing the ground in a correct way and keeping the crystal connections &hellip; <a href=\"https:\/\/dh5ym.hopto.org\/wiki\/?p=181\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-181","post","type-post","status-publish","format-standard","hentry","category-microcontroller"],"_links":{"self":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=181"}],"version-history":[{"count":0,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/181\/revisions"}],"wp:attachment":[{"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}