H6 plan.

Post by **exxos** » Sun Mar 14, 2021 6:02 pm

DoG wrote: Sun Mar 14, 2021 5:33 pm Is anyone using the full 25 pin serial port for anything now a days? Could we make it 9 pin and put it to either ends and get the space that is left over for switches/outlets? Or has that already been considered?

Its been talked about a lot in the past.. It would save space, but there would be nothing to really go there anyway ? Things like LAN would be under the PSU as that is where the main chips are.and more free space.

Darklord · Post by **Darklord** » Sun Mar 14, 2021 8:46 pm

Just checking - at least one 9 pin serial port will still be included, right?

Thanks.

DoG · Post by **DoG** » Sun Mar 14, 2021 8:55 pm

Darklord wrote: Sun Mar 14, 2021 8:46 pm Just checking - at least one 9 pin serial port will still be included, right?

Nothing has changed on that. Still a normal 25 pin on the back. I was just sparking an idea.

Darklord · Post by **Darklord** » Sun Mar 14, 2021 10:25 pm

DoG wrote: Sun Mar 14, 2021 8:55 pm Nothing has changed on that. Still a normal 25 pin on the back. I was just sparking an idea.

Okay, thanks. I'd be good with either the 9 pin or 25 pin, just as long as there's a
serial port.

Smonson · Post by **Smonson** » Mon Mar 15, 2021 6:38 am

exxos wrote: Sun Mar 14, 2021 12:16 pm Though I hope once we get the cores running on CPU & RAM can run at 32MHz and with our FPGA shifter by @Smonson , we are already ready for higher resolutions and colours. We just need faster RAM, and the suska cores in FPGA opens up this door!

A theory - if you're running an FPGA MMU and shifter, then you may be able to increase the resolution/colour depth without faster RAM by widening the data path between the RAM and shifter from 16 to 32 data lines or even more.

Post by **exxos** » Mon Mar 15, 2021 10:15 am

Smonson wrote: Mon Mar 15, 2021 6:38 am A theory - if you're running an FPGA MMU and shifter, then you may be able to increase the resolution/colour depth without faster RAM by widening the data path between the RAM and shifter from 16 to 32 data lines or even more.

Yeah that's been a goal mixed in with the 020 CPU.

Smonson · Post by **Smonson** » Mon Mar 15, 2021 10:29 am

exxos wrote: Mon Mar 15, 2021 10:15 am Yeah that's been a goal mixed in with the 020 CPU.

And make everything 32-bit? Yeah, that would make it simpler, I guess!

stephen_usher · Post by **stephen_usher** » Mon Mar 15, 2021 10:43 am

Smonson wrote: Mon Mar 15, 2021 10:29 am
exxos wrote: Mon Mar 15, 2021 10:15 am Yeah that's been a goal mixed in with the 020 CPU.
And make everything 32-bit? Yeah, that would make it simpler, I guess!

Might as well go the whole hog and build a fully 32 bit machine from the ground up with a 68000 in there for game compatability. There seem to be lots of cheap QFP 68030s on Chinese web sites to throw in there. TT clone anyone?

alienkidmj12 · Post by **alienkidmj12** » Sat Apr 03, 2021 8:12 pm

this sounds brilliant, can't wait for next board

Post by **exxos** » Sat Apr 03, 2021 11:46 pm

I've locked this tread as it's got off-topic and giving the impression the H6 will be 32bit when we are a long way away from that.

exxos's Atari, Amiga & retro forum

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