FPGA Replay Board

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Did you measure the connectin diagram of the non-working vs the working ones?

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@MikeJ, Perhaps some simple means to identify the FPGA mainboard and daughterboard might be a good idea to avoid feature electronic mayham

Ie some small jumpers or serial eeprom (or shiftregister with jumpers).

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The FPGA can pretend the keyboard input comes from 3rd and 4th joystick which can be wired to the GPIO port. No need for Atari 800

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@mikej, Does FPGA Arcade implement 4-bit parallel mode?

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mmm, well one would need a license to implement. I have wired all the required pins up to the ARM. The ARM does not support 4-bin mode with it's SPI peripheral so you would have to use the GPIO pins and bit-bang it. With a tight loop it may well be faster, and is something for future experimentation.

This is why the SSC bus (high speed serial) is wired up to the FPGA as well as the SPI bus, and this can be clocked faster than the SPI bus. So, you would 4-bit copy from the SD card into ARM while DMAing the previous block out over the SSC bus.

So no need to license wiring for a 4-bit interface. But an implementation needs license, correct?

Would it be a mess to wire the FPGA to access the SD-card 4-bit interface? ie no GPIO left..

(sw "updates" can then be distributed less official )

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Base boards on Friday? Daughterboard .. "future"

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Do you use DCM to adjust the DRAM clock signal?

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Completely OT: How does one find food in China that one dears to eat without getting lead or other slowly poisons?
(I read the party people has their own organisation for this purpose out of reach for ordinary people)

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When I worked over there we had a KFC, a McDonalds, an Irish pub that served fish n chips and a French steakhouse all within walking distance of the office.  :-)

Lead, pesticides, motor oil and other spices included free of charge?

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Just dip them in expoxy and packing + boxing is done in one go. Or was that "goo" ?

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The chinese ate it

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For laptop:
 * Any suitable discharge circuits that protect against too high discharge both momentarily and level?
 * Perhaps someone has the skill to implement cosine transform scaling? and appropriate  LVDS interface? for a direct flatscreen interface.

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I think there might be point in not writing too much about it yet as that will make it possible for people interested in creating software (cores) and addons to develop those. Otherwise there's a risk of all units going to a lot of people who's only interest is to have the latest gadget.

I somehow think the current batch will be sold without any problem

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Perhaps you could pay fellow passengers to carry them?

Suitcase = intelligence prothesis

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so sorry guys, _I_ can wait even if I want one

Perhaps there's something wrong with you?

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@mikej, Is there coding space in the ARM and time slices left over to make use of its built in A/D ..?
(I guess it might be hard to save to SD-card if it's too busy sampling, otoh there's RAM)

When do you estimate boards will be available for buy?