The Papilio Arcade Kit is a DIY kit thatprovides everything needed to recreateclassic Arcade games such as Pac-Man.Open Source HDL projects provide thehardware definition for study,implementation, and extending.The Papilio Arcade Wing provides, 12bitVGA, Delta-Sigma Audio, and DB9 Joystickports.
ZPUino is an implementation of the 32-bit Open Source ZPU processor. It is a small implementation that is meant to be used with the Arduino IDE. It is capable of speeds up to 100Mhz and can run on the Papilio Platform.
I'm working on a couple new experimental Papilio Designs that utilize a PCI Express Mini connector for SDRAM or any other high pin count and high speed peripheral.
One of them is the Papilio Nano with a reduced size DIP form factor. I should be posting more information soon.
It is going to be a matter of getting the Buffers setup right, you might want to keep experimenting with different options or read the Xilinx Clocking Guide for Spartan6.
Or, maybe the easiest thing, the clock should already be coming into a DCM/PLL, just change the settings of that to a 24Mhz oscillator instead of 32Mhz. Then the buffers should all be setup correctly.
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