[SOLVED] OSSC settings for CPS2?

[jimbodeanny]

Hi guys, hopefully I'm not posting this is the wrong forum, but I was wondering if anyone can list their settings they use for running CPS2 boards into the OSSC? For whatever reason, I can't seem to get a reliable image without jitters in the picture and fairly frequent dropouts - even in the test menu screen.

I should preface this by saying I've been using the OSSC for years with all of my 10+ arcade cabinets, ranging from Ms. Pac-man, to Arkanoid, Cheyenne, Toki, and Super Hang-On (to name a few.) It's always been reliable. I'm running the signal from my cabinets into a Splitfire JAMMA splitter, and then into the OSSC via SCART/AV1. Everything that I've thrown at it has been great and rock solid. So, I was shocked when I discovered how problematic my CPS2 (Marvel Super Heroes) board was. At first, the OSSC wouldn't sync at all until I turned the "analog sync vth" down to 67. I decided to throw up the cross-hatch pattern in the test menu just to have a stable image to work with, but I still have problems getting a reliable image.

After doing some research, I came across the CPS2 Digital AV Interface that I figured could solve my issues, but alas I see it's no longer available.

Any help would be greatly appreciated!

Thanks!

-Jim

 

[nonosto]

according ossc wiki no special settings are required., and can confirm it.

 

[Roch]

if anyone can list their settings they use for running CPS2 boards into the OSSC?

Nothing special for me, something like this:

{
    "version": "0.85",
    "main": [
        {
            "profile_name": "CPS",
            "video_lpf": "Auto",
            "ypbpr_cs": "Rec. 601",
            "r_f_off": "128",
            "g_f_off": "128",
            "b_f_off": "128",
            "r_f_gain": "26",
            "g_f_gain": "26",
            "b_f_gain": "26",
            "c_gain": "8",
            "s480p_mode": "Auto",
            "s400p_mode": "VGA 640x400@70",
            "tvp_hpll2x": "On",
            "upsample2x": "Off",
            "sync_lpf": "2.5MHz (max)",
            "sync_vth": "11",
            "linelen_tol": "6",
            "vsync_thold": "68",
            "pre_coast": "1 lines",
            "post_coast": "0 lines",
            "pm_240p": "Line4x",
            "pm_384p": "Line2x",
            "pm_480i": "Line2x (bob)",
            "pm_480p": "Passthru",
            "pm_1080i": "Line2x (bob)",
            "l2_mode": "Generic 4:3",
            "l3_mode": "Generic 4:3",
            "l4_mode": "Generic 4:3",
            "l5_mode": "Generic 4:3",
            "l5_fmt": "1920x1080",
            "ar_256col": "4:3",
            "tx_mode": "HDMI (RGB)",
            "hdmi_itc": "Off",
            "sl_mode": "On",
            "sl_str": "5",
            "sl_hybr_str": "0",
            "sl_method": "Multiplication",
            "sl_altern": "On",
            "sl_id": "Top",
            "sl_altiv": "Off",
            "sl_type": "Horizontal",
            "sl_cust_l_str_1": "0",
            "sl_cust_l_str_2": "0",
            "sl_cust_l_str_3": "0",
            "sl_cust_l_str_4": "0",
            "sl_cust_l_str_5": "0",
            "sl_cust_c_str_1": "0",
            "sl_cust_c_str_2": "0",
            "sl_cust_c_str_3": "0",
            "sl_cust_c_str_4": "0",
            "sl_cust_c_str_5": "0",
            "sl_cust_c_str_6": "0",
            "h_mask": "0",
            "v_mask": "0",
            "mask_color": "Black",
            "mask_br": "0",
            "reverse_lpf": "0",
            "full_tx_setup": "Off",
            "vga_ilace_fix": "Off",
            "av3_alt_rgb": "Off",
            "panasonic_hack": "Off",
            "default_vic": "0",
            "audio_dw_sampl": "2x (fs = 48kHz)",
            "audio_swap_lr": "Off",
            "audio_gain": "12",
            "link_av": "AV1: RGBS",
            "export_enabled": "true"
        }
    ],
    "timing_tweaker": [
        [
            {
                "name": "1280x240",
                "h_active": "1187",
                "v_active": "224",
                "h_total": "1560",
                "h_total_adj": "0",
                "h_backporch": "210",
                "v_backporch": "23",
                "h_synclen": "72",
                "v_synclen": "3",
                "sampler_phase": "16"
            }
        ]
    ]
}

 

[jimbodeanny]

Strange. I just can't get a consistent stable image. I've tried default settings and no matter what I do, my OSSC will not sync. The LED just goes back and forth from green to red. The only thing that seems to affect it is the "analog sync vth". When I adjust this in the range of 45-78, I can get an image that locks on for a little while, but it's jittery and drops out every few seconds. None of my other arcade games have trouble like this. Sigh. Not sure what I'm doing wrong.

Thanks for the responses though.

 

[jimbodeanny]

Quick update:

Realized I haven't done a firmware update since I got my OSSC back in 2019. Updated the firmware and everything worked perfectly. I'm now getting a rock solid, perfect image.