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Total: 10 results found.

... KayPlus ROM worked but there were a few odd behaviours running some CP/M applications that needed further investigation. In May 2014 a Kaypro II was purchased from eBay by phorgen on the Vintage Computer ...
... and sold as a "controller".  Apparantly it was also sold as a basis for a complete Z80 machine with a disk controller and could run CP/M. I don't know the history of this particular board.  There ...
... case would still close! Kaypro FreHD SHIM installed in a Kaypro II (81-110n) SHIM with FreHD attached CP/M running from the FreHD I discovered two ...
... a WD1010 Hard Disk controller + Hard Disk combination.  Western Digital Hard Disk controllers were fairly common in the early 80's with many available as after market additions for the Z80 + CP/M ...
... CP/M recognized the extra memory promptly created a 64K ram disk as drive M:.  PIP had no difficulties copying files to and from M: What a great way to spend 30 minutes.   Not wanting ...
I have written about my home built Z80 CP/M computer in earlier posts.  Based on a design by Grant Searle (http://searle.hostei.com/grant/cpm/index.html) this fabulous litle machine is easily built ...
... but USB but something I hadn't even considered when I started down the USB track. The next step (after replacing the serial boards and adding the extra LED's) is to install an updated CBIOS for CP/M ...
Boots CP/M 2.2 off the compact flash card.... 8 x 8mb drives (luxury in 1980). Rather than wire directly to the Compact Flash connector like Grant did on this prototype, I ordered a low cost ...
Replaced a 7417 open collector driver on the KY11-LB controller board hoping this would solve the display problem but not so.... time to work further back through the board.   I think it is ...
...  I haven't tried CP/M yet and need to free up some space or add some additional flash memory. In the mean time... on to the blinking lights.  The DSL-502T does not have enough free GPIO ...

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Contact Andrew Quinn

jaquinn@ihug.co.nz http://twitter.com/jaquinn