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Author Topic: Enterprise Deployment Attempt Over FPGA. (Read 54398 times)

Offline rampa

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WD1770 working OK!
« Reply #285 on: 2023.January.01. 22:37:19 »


   Thanks very much to everybody. Disk controller is working ok now....
 

Offline Zozosoft

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Re: WD1770 working OK!
« Reply #286 on: 2023.January.02. 02:30:59 »
Thanks very much to everybody. Disk controller is working ok now....
Great!
What is the final solution?

Offline rampa

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Re: Enterprise Deployment Attempt Over FPGA.
« Reply #287 on: 2023.January.03. 10:41:58 »

 Not sure what fixed the problem (may  be a compund)

- Implemented exact seek times.
- Got all the floppy lines from the "virtual" floppy
- Reimplemented the track functions.
- Implemented CRC calculation.


Offline Zozosoft

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Re: Enterprise Deployment Attempt Over FPGA.
« Reply #288 on: 2023.January.25. 22:59:51 »
Now when the full machine working right in FPGA...
Possible to put FPGA core of Nick and Dave to any FPGA chip, and produce replacement chips which can be installed to real chips place? Repair dead machines.

Offline Kyp

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Re: Enterprise Deployment Attempt Over FPGA.
« Reply #289 on: 2023.January.25. 23:28:19 »
It's possible but it's not that easy, doing an FPGA implementation is much easier than doing an actual chip replacement :(
To do a real chip replacement needs a lot of extra work.

Offline ergoGnomik

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Re: Enterprise Deployment Attempt Over FPGA.
« Reply #290 on: 2023.January.26. 16:33:19 »
And it is even harder to make it fit in the space and volume of the original QFP package.

Offline gflorez

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Re: Enterprise Deployment Attempt Over FPGA.
« Reply #291 on: 2023.January.26. 17:05:08 »
I think the main problem is to "tie" the modern technology with the old. The two devices behave the same on video or sound, but they are very different inside.

Kyp says that FPGA is easier, I think because in some way it is schematic. But he also says that a physical device made of real components can be created with the information. After all what he manages to design a FPGA core is a hardware descriptive language.

Imagine the possible turnarounds taken by the designer to make the chips real on the 80's, It can be that the contemporary FPGA circuit doesn't need so much pins for Dave and Nick, but you still need all the signals to "transplant" the hypothetical clone chip to the real Machine, to be able to return it to life...

-

I am not the best source of FPGA knowledge, sorry if I can't give a better explanation.