{"id":57,"date":"2014-05-11T16:39:05","date_gmt":"2014-05-11T15:39:05","guid":{"rendered":"http:\/\/www.randomorbit.co.uk\/wordpress\/?p=57"},"modified":"2015-02-21T13:48:43","modified_gmt":"2015-02-21T13:48:43","slug":"first-boot","status":"publish","type":"post","link":"https:\/\/www.randomorbit.co.uk\/?p=57","title":{"rendered":"First boot."},"content":{"rendered":"

I was a complete novice with the PDP-11 and so I asked for some help on the www.vintage-computer.com forums<\/a>. Thanks to the help of the folks there I got the machine to boot.<\/p>\n

 <\/p>\n

This is what I did…<\/p>\n

Downloaded the TU58 emulator from Don’s site here<\/a>. This enables a PC to emulate a TU58 which is a tape drive unit that talks to the PDP using a serial port.
I downloaded a disk image for the TU58 emulator to load and present to the PDP when asked, from here<\/a>.<\/p>\n

I used Win Xp on my rather old laptop and used Hyperterm on COM1 (19200) to act as my terminal to the PDP.
I started a command prompt on Xp and then started tu58em<\/strong> with the options -p5 -s 9600 -r 11xxdp.dsk. This starts tu58em talking on COM5 at 9600 baud with the disk image mounted as read only.<\/p>\n

I had COM1 connected to the console port and COM5 to the printer port.<\/p>\n

I started the PDP, watched it go thorough its self test and the numbers 1 to 9 and when it started rattling the RX50 I pressed ctrl-C to break the boot. It asked for a command and I used…<\/p>\n

\n
Code:<\/div>\n
BOOT DD0<\/pre>\n<\/p><\/div>\n
and watched as it started up.<\/p>\n
 One point I didn’t pick up on until I saw it was that it has both DD0 and DD1 are on the same port. I thought they would be on two serial lines (SLU) and they are not \"\"<\/p>\n
 Now I’ve booted up the PDP I’ll sit down with the manuals and boot myself.<\/p>\n","protected":false},"excerpt":{"rendered":"
I was a complete novice with the PDP-11 and so I asked for some help on the www.vintage-computer.com forums. Thanks to the help of the folks there I got the machine to boot.   This is what I did… Downloaded the TU58 emulator from Don’s site here. This enables a PC to emulate a TU58 … Continue reading First boot.<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[46],"tags":[],"class_list":["post-57","post","type-post","status-publish","format-standard","hentry","category-pdp-1153"],"featured_image_src":null,"author_info":{"display_name":"andy","author_link":"https:\/\/www.randomorbit.co.uk\/?author=1"},"_links":{"self":[{"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/57","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=57"}],"version-history":[{"count":1,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/57\/revisions"}],"predecessor-version":[{"id":811,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/57\/revisions\/811"}],"wp:attachment":[{"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=57"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=57"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=57"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}