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Old 7th Aug 2021, 7:42 pm   #90
Slothie
Octode
 
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
Posts: 1,287
Default Re: MK14 Programming Interface

If I were to make a full 40 key keyboard we might need a full uploader... just saying!

You could use the existing uploader PCB if you fitted only U2..U9, connected the keyboard to the column lines, fitted pull-down resistors to the columns and connected the common track between the optos (e.g. Pin 3 of U10) to +5v of the Triton. You could probably use the reset opto to provide the strobe in a similar manner. But I suppose after you've butchered the PCB that much you could have done the same on stripboard!
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