OSSC v1.xx series beta firmware

[oguzog]

Somehow it works now. Didn’t change anything.

[Denoiser]

I have fixed this. It was bad soldering on resistor pad.

[Raph_friend]

@marqs fw 1.11a broken every JAMMA PCB sync.

[oguzog]

I couldn’t get image as well on jamma. It syncs and stays synced but no image only solid black screen.

[marqs]

@Raph_friend it’s likely caused by ADC PLL BW option introduced in 1.11. Its default value (high) is tailored for lowest jitter but unfortunately it has reduced compatibility for some displays. Try changing it to lower bandwidth – I’ve already changed default to medium locally, but that won’t go into effect until next firmware (and then only on fresh boards or if existing profile is reset).

[Raph_friend]

What’s happening is that it’s not detecting any sync from JAMMA PCBs.
Did you get it working with CPS2 or MVS (MV1C for example)?

Edit: After a few tweaks, I managed to get my PCBs working again.

Thanks!

• This reply was modified 6 months ago by Raph_friend.

[jairslira]

Hello everyone, I’m from Brazil, I made the mod for version 1.8, and there’s something I noticed, on TVs with HDR compatibility, apparently the burn in effect when using 2x or 4x bob, stopped happening, has anyone else noticed? Could this be the solution for the burn in caused by bob? At least on my TV after that, it went back to normal, before the burn in happened very quickly if I left the image paused for a few minutes, I did a test yesterday with HDR enabled, I left the image paused for more than 20 minutes and nothing happened, it went back to normal.

[Ray T]

Updated my v1.7 after performing the modifications, my U10 chip was not one of the ones listed but the update applied successfully.

[BuckoA51]

It’s possible that your TV is automatically dimming or slightly shifting the picture to prevent burn in. Most OLEDs do this in HDR mode.

[Jupsi]

Looking to do the mod and unsure if this U10 chip is compatible fl116kif4 thanks in advance

[jairslira]

@marqs Hi guys, if possible, please clear my doubts, does the shadow mask already emulate all the behavior of a crt including the scanlines? or even activating the shadow mask, do I also need to activate the scanlines to have an image closer to a real crt?

• This reply was modified 4 months, 2 weeks ago by jairslira.

[colrut]

does anyone know when we will get lumacode support for atari 8 bit computers?

[marqs]

@marqs Hi guys, if possible, please clear my doubts, does the shadow mask already emulate all the behavior of a crt including the scanlines? or even activating the shadow mask, do I also need to activate the scanlines to have an image closer to a real crt?

It only models shadow/slot masks as per name. You can simultaneously use scanline options to model 15kHz CRT behaviour with 240p/288p signals.

does anyone know when we will get lumacode support for atari 8 bit computers?

It’s already implemented but is awaiting more test results, see this.

[jairslira]

@marqs Thank you very much for the answer, I’m from Brazil and an OSSC enthusiast, I made the mod on my 1.7 to work with the 1.xx firmware, I’m quite satisfied with the result, I use OSSC on the PS2, would you have a recommendation to use the shadow mask but scanline for 480i/480p consoles or in addition to the shadow mask, would it be interesting to also activate the scanline only on consoles with 240/288p resolution?

[jairslira]

@marqs In this case, what is the best configuration for the Playstation 2 that you recommend so that I can have an image as close as possible to a real crt in ossc 1.8?

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