Reply To: OSSC v1.xx series beta firmware

[marqs]

@uchristo: initial debug info (line count etc.) after selecting a source may not be valid, but should normally settle into fixed numbers after couple rounds. Based on non-debug build behaviour the sync frontend seems to detect irregular field changes, and as a result the detected mode does not stabilize. Without seeing sync waveform it’s hard to say why this happens (trilevel sync, equalization pulses, etc?). Perhaps you can try reducing ‘Vsync threshold’ from sync menu.

It’s worth noting that sync unstability (previously indicated by red LED) is now encoded into green LED so it can hide remote control activity indicator. Also, if the connection to JTAG UART is lost for whatever reason, the debug build freezes.

@BuckoA51: I believe Bugs Bunny and certain Atari 2600 games just break sync regularity and consequently line-locking, thus no way around it using OSSC HW. I’ll try to reproduce your issue with interlaced content.