10xx headway

The 10xx custom is nearly done. The system resets and passes all self tests, but the watchdog goes off right before the track appears. Which tells me it's a bus control scenario between the 10xx and the 08xx. I'm tracing the Z80 bus to see where it gets lost in the weeds and once I figure that out, should be an easy fix. Stay tuned for a complete overview on how I've helped automate the reverse engineering of the customs. It's saved me tons of time.

Holy crap has it been that long??? Been working more on this project these past few weeks but still not as often as I would like. :-(

CPLD success

Apparently it helps when you:

1. Install the ByteBlaster Driver (see the ByteBlaster II PDF)
   
2. Choose ByteBlaster and not ByteBlasterMV (I have to unplug mine for this option to show up)
3. Have continuity between the ByteBlaster and the CPLD.

Anyways... now I can see how close my customs are to the real deal....deals....(deals?).... eh you get the point.

"Can you read me?"

Picked up my programmable device and built my own ByteBlaster but can't seem to program the device. Comparing my byteblaster to the schematic found in the ByteBlaster II datasheet they appear to be different so I may have to modify mine so it looks to be the real thing. Stay tuned....

Breadboard goodness

Got the 08xx just about figured out. All I need now is a programmable replacement from www.fpgaarcade.com and I can see how close I am. Should also be a good starting point for the 10xx. The pinouts are identical so I suspect there may be some subtle internal differences to accommodate the z8002's Z-bus architecture.

Off and running again

Spent a few hours working on the Pole board that I have... did some praying...and got it working again.
Now on to the next custom....

One step forward.. two steps back

Got custom 07xx figured out and was moving onto another when my board started flaking out. :-( Looks like I'll have to go over it and see if I can get it working again. Cloning this system without a 'golden board' is not impossible, but reverse engineering customs and especially comparing simulation to real hardware is going to be tricky.