Another more verbose update...
TFMSX rev1
Moderators: terriblefire, Terriblefire Moderator
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Re: TFMSX rev1
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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- Moderator Team
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Re: TFMSX rev1
Figured out the Joystick issue. The joystick port is mirrored despite using a DB9 component from farnell.
Grrr thats annoying i thought the numbers would be standard.
Grrr thats annoying i thought the numbers would be standard.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
-
- Moderator Team
- Posts: 5389
- Joined: Mon Aug 28, 2017 10:56 pm
- Location: Glasgow, UK
Re: TFMSX rev1
little bit of work this evening on the MSX2 support....
Using a hacked out version of fmsx i determined that while you dont need the RTC clock to be working you do need the CMOS to be present (at least as volatile RAM) or the machine will not boot.
Using a hacked out version of fmsx i determined that while you dont need the RTC clock to be working you do need the CMOS to be present (at least as volatile RAM) or the machine will not boot.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TFMSX rev1
Looking good. Always nice to see a development detail video.
You mentioned about a potential case for it, as well as the possible addition of a headphone jack. If another hardware revision is in the pipeline then adding some strategic M3/M4 mount holes near the RHS corners and maybe behind those DB9s if possible might aid the case creation.
I can't see any mount holes on the current prototype unless they're hidden from view on the video?
You mentioned about a potential case for it, as well as the possible addition of a headphone jack. If another hardware revision is in the pipeline then adding some strategic M3/M4 mount holes near the RHS corners and maybe behind those DB9s if possible might aid the case creation.
I can't see any mount holes on the current prototype unless they're hidden from view on the video?
Re: TFMSX rev1
What's the plan - are you going to emulate the RTC/CMOS using the Arm?terriblefire wrote: ↑Tue May 17, 2022 7:47 pm little bit of work this evening on the MSX2 support....
Using a hacked out version of fmsx i determined that while you dont need the RTC clock to be working you do need the CMOS to be present (at least as volatile RAM) or the machine will not boot.
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Re: TFMSX rev1
Unsure. Just want to see an MSX2 Bios booting TBH. I mean nobody cares about RTC do they?Gooeyblob wrote: ↑Wed May 18, 2022 11:14 amWhat's the plan - are you going to emulate the RTC/CMOS using the Arm?terriblefire wrote: ↑Tue May 17, 2022 7:47 pm little bit of work this evening on the MSX2 support....
Using a hacked out version of fmsx i determined that while you dont need the RTC clock to be working you do need the CMOS to be present (at least as volatile RAM) or the machine will not boot.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TFMSX rev1
No nobody will care about the RTC function.
Only the msx2 standard will care about the missing 52 nibbles of storage!
You could always patch the bios to bypass it...
Only the msx2 standard will care about the missing 52 nibbles of storage!
You could always patch the bios to bypass it...
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Re: TFMSX rev1
Well its booting MSX Basic 2.1 now and has 512K of RAM available.
All thats keeping it from being an MSX2+ at this point is the soft reset.
I can also play games with SCC and MSX2 games.
All thats keeping it from being an MSX2+ at this point is the soft reset.
I can also play games with SCC and MSX2 games.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: TFMSX rev1
Nice one!
Another update video please
Another update video please
Re: TFMSX rev1
I'm certainly interested in building up one of these once it's at the right stage always been interested in these obscure Japanese computers! From what I gather the MSX2 standard had all the nice things like hardware scrolling and such?