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JackAsser
Registered: Jun 2002 Posts: 1989 |
Eye of the Beholder
Resumed. Easy Flash.
https://youtu.be/dvWrimZUk40 |
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JackAsser
Registered: Jun 2002 Posts: 1989 |
Quote: I'd buy that for a dollar!
Many dollars, actually. How is the cart programmed? I have an EasyFlash project myself, that's been dormant for some years...
It’s programmed exactly the same as EF, with EasyProg. |
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chatGPZ
Registered: Dec 2001 Posts: 11114 |
Quote:Gmod2 is only 512kb. I need 1Mb.
btw, we are just working on Gmod3, which will come in 2/4/8/16 Mb versions :) |
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hedning
Registered: Mar 2009 Posts: 4595 |
Quote: Quote:Gmod2 is only 512kb. I need 1Mb.
btw, we are just working on Gmod3, which will come in 2/4/8/16 Mb versions :)
Nice. Have you fixed the bug in gmod2 that makes the cart not work with all c64 revisions? I think it's a timing issue of sorts (haven't experienced it myself, just read about it). Quite problematic if it's made for commerical stuff. |
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chatGPZ
Registered: Dec 2001 Posts: 11114 |
only the flashing does not work on all revisions, which is no problem, since the customer is not supposed to do that anyway.
but yes, flashing gmod3 will work on all c64, and it will be available to endusers too. |
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JackAsser
Registered: Jun 2002 Posts: 1989 |
Quote: Quote:Gmod2 is only 512kb. I need 1Mb.
btw, we are just working on Gmod3, which will come in 2/4/8/16 Mb versions :)
Would be very interesting to compare BOMs. |
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chatGPZ
Registered: Dec 2001 Posts: 11114 |
contact jens, i cant tell any of that... all i know is that the emulation is half working =P |
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JackAsser
Registered: Jun 2002 Posts: 1989 |
Quote: contact jens, i cant tell any of that... all i know is that the emulation is half working =P
I see! I kept it simple and just replicated Skoe’s logic into the PLD including the delay of 1 dotclk etc. If I find cheap 2 or 4 MB chips I’ll add option for that. Up to 4MB would still remain EF1 compatible (256 banks). |
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chatGPZ
Registered: Dec 2001 Posts: 11114 |
WIP specs are here... its a bit "different". probably due to the low cost design jens is aiming for (it uses a SPI flash). |
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JackAsser
Registered: Jun 2002 Posts: 1989 |
Quote: WIP specs are here... its a bit "different". probably due to the low cost design jens is aiming for (it uses a SPI flash).
I did a similar experiment using cheapo SPI also but got tired of not being able to bring the chip into qspi which is needed to meet bus requirements. I have a design based around an stm32 arm controller at 80mhz + a qspi chip which in theory just barely will meet timing requirements. Got totally bored of coding it so I designed this new cart instead. |
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JackAsser
Registered: Jun 2002 Posts: 1989 |
The adapter board hosta the qspi-flash and then a Nucleo dev board is attached on top, just for quick experimenting using arm-based bus logic.
https://ibb.co/S5dtBVw
https://ibb.co/6Dxjpvd |
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