MiSTer FPGA Forum

uberyoji

Updated neogeo core 60hz to latest version. Run update_all with the the custom db set.

uberyoji

Anyone know if it got merged in main afterall?

uberyoji

Please, could anyone make a TurboGFX / PC Engine core with 60hz? Dont need anymore, i have learned how to do It, i maked my own custom core, works great!!!! Sorry to not do this via PM, but since I just lurk here and never post I can't send PMs. Would you mind sharing that modified core? Aside from Neo Geo TurboGrafx is the only core that I play t...

uberyoji

Sorge is against it. His answer was to a) buy a better tv or b) fork the core. Which I did.

uberyoji

Primeira_Fase wrote: ↑Wed Oct 05, 2022 12:45 am
Primeira_Fase wrote: ↑Tue Oct 04, 2022 4:00 pm Please, could anyone make a TurboGFX / PC Engine core with 60hz?
Dont need anymore, i have learned how to do It, i maked my own custom core, works great!!!!

Good for you. It is not that hard. I mentionned the steps in the posts.

uberyoji

Oh after reading about github actions, I believe some automation could be performed after all as Quartus seems available on linux and could potentially called from command line. Maybe I should start a new thread for further discussion about this.

uberyoji

Unfortunately it is very difficult to automate :-/ as each source files are different. On top of that, I don't believe you can automate the compilation online with github tasks for example. As for the neogeo, no worries, I will maintain this fork for a long time. My setup is done and it takes me just a couple of minutes to sync, compile and deploy ...

uberyoji

Eheh i updated also. If you run update_all with the custom db

uberyoji

It is mainly for crts.

uberyoji

Core updated. Just run the updater if you configured the custom db.
On my end I didnt notice any difference in any roms.

uberyoji

There is nothing to activate as both aes and mvs have their timing set to 60hz. However what I could do is change the timing only on the mvs. This way 60hz be toggled by using the menu.

uberyoji

Done. Now you can use the update_all script to update the custom core. Enjoy! Add the following to the bottom of /media/fat/downloader.ini on your MiSTer: [uberyoji_neogeo_mister_60hz] db_url = https://raw.githubusercontent.com/uberyoji/NeoGeo_MiSTer_60hz/master/releases/uberyoji_neogeo_mister_60hz.json If you want to update manually, I will put th...

uberyoji

Eheh all good lufeig. I'll make it happen now that I know how to make custom mister DBs.

uberyoji

lufeig wrote: ↑Fri Mar 25, 2022 1:15 am Latest 20220212 core patched to 60Hz

https://mega.nz/file/qShQjAjD#5J6MJsUah ... TC_W1AVwgo

Maybe we should start an github fork together and release those thru a custom db. What do you think?

uberyoji

Happy you like them.

uberyoji

Updated the latest neogeo core to 60hz. See mega folder.

uberyoji

Wow. This is a neat trick. I am tempted to create roms for each cores. I think can tackle gb,gba,nes. Other systems I will have to research how to program them.

uberyoji

Updated the mega folder with 60hz gameboy and gba core test builds.

uberyoji

Wow. By the man himself

thank you. I'll do the mods right away.

uberyoji

Arg. I am a bit screwed. The timings are already tweaked on the pll component. I would need base timings to recalculate the ratios. Anyone knows the proper timings? Gameboy is quite far from the 96/48 baseline.

Currently this is what is set:
GBA
- 100.663296
- 50.331648

Gameboy
- 67.108864
- 33.554432

uberyoji

Ok I'll check over the weekend and make builds.

uberyoji

Hi everyone, would it be possible to make a similar change to the Game Boy/GBA cores? So, adjusting the core clock from 59.7Hz to 60Hz? These systems are really the only ones giving my TV (Sony XH90) trouble, I get frequent stuttering even with vsync_adjust=2. I'm not able to build the change myself unfortunately as I'm on MacOS. What I do on my e...

uberyoji

Updated folder with a patched version of the Sept 8th release.
https://mega.nz/folder/xlUVEIzB#vKdNV8vkMuQixxPgItnV2w

uberyoji

Here's the latest version fixed at 60hz.
https://mega.nz/file/sxUi3BrC#CBxoZxTKy ... h3eQ9Abz44

uberyoji

Since there is now a clock switch used in the core you'll have to change it to 60Hz in a different way. There are 2 numbers here: https://github.com/MiSTer-devel/NeoGeo_MiSTer/blob/44ba7a7d813d80b974c3f62360754ee5fc46935e/neogeo.sv#L373 cfg_data <= sys_mvs_r ? 2576980378 : 2865308404; The first is for MVS and the second for AES. The number for 60H...

uberyoji

Sure. But if I read the github thread correctly, sorgelig agreed to make the mvs and aes timing different. It might fix our crt problem by selecting aes. I will have to check if I can still apply the mod.
You can see the discussion here: github.com/MiSTer-devel/NeoGeo_MiSTer/pull/134

uberyoji

Thank you for this. This has fixed the issue of stuttering scrolling on my TCL 55R617. I'd like to try this with the double dragon core as well, as the 57hz refresh rate causes stuttery scrolling on my TV. However speeding that game up to 60hz would probably affect gameplay more noticeably than the neo's slight increase? I can have a look for you....

uberyoji

Ganondork wrote: ↑Sun Apr 04, 2021 6:03 pm You are actually wrong here, vsync_adjust only applies to hdmi-output.

I think this is what I said

vsync_adjust applies to hdmi output.

uberyoji

Maybe I am mistaken, but I always though the vsync_adjust param to be related to the scaler and therefore attached to the hdmi output (unless you are using the scaler on vga). I personally don't have any issues with hdmi output on any of my lcd tvs using the original neogeo core. The tweak is aimed more at forcing 60hz for crt usage. Without this f...

uberyoji

Not too complicated honestly if you have a little xp in software devs. It is basically those steps high level: 1) install Quartus lite v17.0 (once) 2) Install git (once) 3) Get/update source code from repo 4) Modify Entity pll from 96 to 97.330180 and 48 to 48.665090 5) Compile core 6) Profit I plan to maintain the 60hz fork forever so no worries, ...

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