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Old 20th Oct 2020, 11:43 pm   #28
Slothie
Octode
 
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
Posts: 1,287
Default Re: MK14 programming interface - Arduino version

Quote:
Originally Posted by DeltaAlpha52 View Post
So the revised versions of the MK14 have another inverter in the reset circuit.

Is there an updated schematic for the MK14 "issue Vi" ?
Yes, Here is the latest schematic for rev 1,2 of the Issue VI. Note that this is not the same as the JMP or Martin replicas, it has an extra logic IC to allow ram at 0x200-7FF and optional support for 65X61 RAM chips, as well as having all the signals required for the VDU brought to the edge connector.
Attached Files
File Type: pdf mk14_v6_1_2.pdf (398.9 KB, 73 views)
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