After all that it's time to give something back.
Here are a some photos with instructions on how to attach the various wires, jumpers etc, in case others are wondering as well...
(this is for the MegaSTe version of the MonSTer).DMA interrupt wire (for booting from an IDE drive connected to the MonSTer)
This is pin 10 of the ACSI connector, but finding it difficult to solder in a wire there, I used one side of R525 instead, as shown here (I'll be soldering it to the resistor later).
The other end of the wire goes to one of the two "ACSI" pins of the MonSTer's JBLOCK (see photo further down)Re-enabling the Blitter chip
You need to attach wires from 2 ICs on the MegaSTe main board which go to the MonSTer board.
First locate these ICs on the Mega STe main board:
- U1 (74F244) found underneath IDC-cable attached to the VME-port
- U6 (22V10) found just right to the MonSTer IDE ports
- U11 (22V10) found just right to the MonSTer IDE ports
You need to connect the wires from U1 to the MonSTer.
Then connect a wire from U6 or
U11 to the MonSTer.
Here are the connection pins of the MonSTer which goes to those ICs. You also need to insert a jumper to actually enable the Blitter as shown here:JBLOCK connection pinout
The JBLOCK (jumper block) contains the two ACSI DMA interrupt pins (see "DMA interrupt wire" above), connections for activity LEDs (for each of the two IDE buses), connections to a realtime battery backed clock and jumpers for various functions. The MegaSTe already has a built in battery backed clock so this is probably not of much interest to most people, but I'm considering one of those cheap DS1338 based modules (available on eBay etc) because of the more handy batteryMonSTer orientation/placement and CPU insertion and removal
This information should probably be in the beginning, but anyway...
The removal part of the 68000 is mostly when you unplug it from the MegaSTe main board, then insert it (the correct way -see photo) into the MonSTer which in turn is inserted into the (now) empty 68000 CPU socket on the main board.
If something's incorrect please let me know
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