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Re: TFMSX Arrives
Posted: Thu Jul 08, 2021 6:32 pm
by Gooeyblob
MSX2 mostly use the Ricoh-RP5C01 clock chip:
https://www.msx.org/wiki/Ricoh_RP-5C01
Not just for retrieving the time but for config data like screen resolution etc.
Further down the line you could emulate this using the ARM?
Re: TFMSX Arrives
Posted: Thu Jul 08, 2021 6:34 pm
by terriblefire
That’s exactly the plan. But the first board was a total drunk fest
Re: TFMSX Arrives
Posted: Thu Jul 08, 2021 8:06 pm
by arkadiusz.makarenko
terriblefire wrote: ↑Thu Jul 08, 2021 6:34 pm
That’s exactly the plan. But the first board was a total drunk fest
That was pretty successful prototype!
Re: TFMSX Arrives
Posted: Fri Jul 09, 2021 2:22 am
by Cheshire Noir
Not sure it's any help at all, but the Omega MSX2 clone is GPL3, so may be of some assistance?
(I may be trying to teach Granny how to suck eggs here
)
https://github.com/skiselev/omega
Chesh
Re: TFMSX Arrives
Posted: Fri Jul 09, 2021 8:58 am
by terriblefire
There aint no fun in copying someone elses design. Its all about the process not the end result.
Re: TFMSX Arrives
Posted: Fri Jul 09, 2021 11:08 pm
by 8 Bit Dreams
You can make it better though,
like packing all glue logic into a single cpld..
Re: TFMSX Arrives
Posted: Sat Jul 10, 2021 1:59 pm
by terriblefire
Well this one is all about me being drunk.
Re: TFMSX Arrives
Posted: Wed Sep 22, 2021 8:01 am
by Matej
Any chance to buy 2x of those?
Re: TFMSX Arrives
Posted: Wed Sep 22, 2021 8:17 am
by terriblefire
Yes but let me sort out the issues first. They need a bunch of patch wires right now. I've fired these bad boys up for the first time lately.
I may actually respin them instead of trying to continue with the rev0s.
Re: TFMSX Arrives
Posted: Wed Sep 22, 2021 2:21 pm
by PhilC
@terriblefire I'd be happy to help out with this as well once you are ready.