{"id":1204,"date":"2017-04-11T19:48:08","date_gmt":"2017-04-11T18:48:08","guid":{"rendered":"http:\/\/www.randomorbit.co.uk\/?p=1204"},"modified":"2017-04-11T19:48:08","modified_gmt":"2017-04-11T18:48:08","slug":"retrochallenge-20174-interak-cf-card-reader-revisited-part-1","status":"publish","type":"post","link":"https:\/\/www.randomorbit.co.uk\/?p=1204","title":{"rendered":"Retrochallenge 2017\/4 – Interak CF card reader revisited – Part 1"},"content":{"rendered":"

\"\"<\/a>Retrochallenge is well under way now and so it’s time I made a start and got something blogged about. Although my posts here don’t show a lot of activity, I do some work on one or other of my retro systems most weeks throughout the year but Retrochallenge is a good reminder to blog about some of this activity in the hope it may be useful to someone else or help to promote interest in our hobby.<\/p>\n

Catching up.<\/h2>\n

A little while ago<\/a> I tried to get a CF card adapter to work on my splendid little Interak-1. That didn’t work properly but an email conversation with a friend of mine who also has an Interak suggested that my cables were too long and that I needed to get the CF card as close to the CPU as possible.<\/p>\n

So, my first Retrochallenge project this time around is to re-visit that project and try and get it to work.<\/p>\n

In the previous attempt I used a CF card adapter intended for the RC2014<\/a> (itself a Retrochallenge project). In order to get that to talk to the Interak I needed to make a bus adapter and to do that I modified an Interak prototype board.<\/p>\n

As I said\u00a0 above, the suspicion is that the CF card was too far away from the CPU.<\/p>\n

Lets build a Mezzanine.<\/h2>\n

One way to get really close to the CPU is to slip a PCB between the CPU and its original socket and use this new PCB to link to the CF card adapter. This is the approach I’m using here.<\/p>\n

\"\"<\/a>I still want to use the CF adapter for the RC2014 and so I still need to convert from my Z80 CPU to the RC2014 bus. What better way to do that than to use an RC2014 CPU card?<\/p>\n

Spencer Owen of RC2014 had a small number of prototype CPU cards<\/a> in his Tindie store and bought one of those, soldered a wire-wrap socket to it, plugged that into a conventional socket and on into the socket my CPU originally sat in. (This is going on a bit, see the pictures).\"\"<\/a><\/p>\n

Now the Z80 sits on the RC2014 CPU board and the Interak CPU board with the CF adapter over to the side.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Retrochallenge is well under way now and so it’s time I made a start and got something blogged about. Although my posts here don’t show a lot of activity, I do some work on one or other of my retro systems most weeks throughout the year but Retrochallenge is a good reminder to blog about … Continue reading Retrochallenge 2017\/4 – Interak CF card reader revisited – Part 1<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[47,122,33,98,125],"tags":[],"class_list":["post-1204","post","type-post","status-publish","format-standard","hentry","category-c93-blog-posts","category-interak","category-c84-retro-tech","category-retrochallenge","category-retrochallenge-20174"],"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\/1204","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=1204"}],"version-history":[{"count":5,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1204\/revisions"}],"predecessor-version":[{"id":1213,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/1204\/revisions\/1213"}],"wp:attachment":[{"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.randomorbit.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}