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Re: MiniMax8085 - Extension Board [message #9593 is a reply to message #9234] Sat, 08 January 2022 00:19 Go to previous messageGo to previous message
Sergey is currently offline  Sergey
Messages: 236
Registered: October 2015
Location: Portland, OR
Senior Member
Well, it's been a while.
I made a stupid mistake in the first revision - used wrong footprint for DC-DC converter. Updated/reordered PCBs.
Spent some time building and testing the board over new year's break.
All seems to work properly. The only minor annoyance is that Am9511A APU's END signal is connected to TRAP, so it causes a non-maskable interrupt on completion of every instruction.
Anyway, as promised the design is here: https://github.com/skiselev/minimax8085-apu-ext

I have a few extra PCBs in case someone is interested. Probably just for the price of shipping...

/forum/index.php?t=getfile&id=2605&private=0

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