{"id":524,"date":"2012-05-13T15:57:11","date_gmt":"2012-05-13T13:57:11","guid":{"rendered":"http:\/\/pdp2011.sytse.net\/wordpress\/?p=524"},"modified":"2012-05-13T15:57:11","modified_gmt":"2012-05-13T13:57:11","slug":"pdp2011-has-been-to-vcf","status":"publish","type":"post","link":"https:\/\/pdp2011.sytse.net\/wordpress\/pdp2011-has-been-to-vcf\/","title":{"rendered":"PDP2011 has been to VCF"},"content":{"rendered":"<p>Jack Rubin sent me this picture of his DE0 board running RT11 in front of a real PDP11\/70. Taken during the VCF East 8.0, which took place last weekend. It&#8217;s something of a classic &#8216;old meets new&#8217; picture &#8211; there being something like 40 years of age difference in it. Would have liked to be there and see it for real &#8211; but it&#8217;s on the other side of the ocean from where I live. Still makes me proud to see my work on display. Thanks Jack!<br \/>\nOver the last weeks, I&#8217;ve been working on an Ethernet interface for the PDP &#8211; a DEUNA, to be more exact. And it&#8217;s basically only the implementation of the controller; the real Ethernet stuff is implemented in a tiny Michrochip ENC624J600 device that I interface via SPI. The DEUNA is working a bit already, but there is still a major bug in it &#8211; it appears to cause memory corruption. I&#8217;ve been able to do some pings to a board running BSD2.11, and even telnetted to it a couple of times, but it tends to crash often. I expect that there is a bug in the bus master logic, and that will take me some time to find. Especially since the summer is here, and it&#8217;s time to go outside and spend time on outdoor projects.<br \/>\n<a href=\"\/wordpress\/wp-content\/uploads\/2012\/05\/DSCF3518.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-525\" title=\"DSCF3518\" src=\"\/wordpress\/wp-content\/uploads\/2012\/05\/DSCF3518.jpg\" alt=\"PDP2011 in front of a real PDP11\/70\" width=\"700\" height=\"525\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jack Rubin sent me this picture of his DE0 board running RT11 in front of a real PDP11\/70. Taken during the VCF East 8.0, which took place last weekend. It&#8217;s something of a classic &#8216;old meets new&#8217; picture &#8211; there being something like 40 years of age difference in it. Would have liked to be [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,6],"tags":[],"class_list":["post-524","post","type-post","status-publish","format-standard","hentry","category-pdp11","category-update","missing-thumbnail"],"_links":{"self":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/posts\/524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/comments?post=524"}],"version-history":[{"count":0,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/posts\/524\/revisions"}],"wp:attachment":[{"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/media?parent=524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/categories?post=524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pdp2011.sytse.net\/wordpress\/wp-json\/wp\/v2\/tags?post=524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}