Guys, I also have my MISTER setup running on my ASTRO via Jamma setup meanwhile.
Working great - and might want to share my setup with the community.
With support of the BLISSTER pcb and related high speed ports I tried to use BLISSTER setup with the "Jammacon board" out from ARCADE OTAKU community.
The jammacon board was inteded to support consoles via VGA2scart cable and specific console adapters to jamma interface.
What you need:
1) MISTER with BLISSTER board
2) JAMMACON Main Board
3) JAMMACON adapter board (I used Saturn to support up tp 6 buttons)
4) VGA2Scart calbe to connect MISTER with JAMMACON
5) 2x Saturn Highspeed adapter
So I ordered 2 Highspeed adapter plugs for SATURN adapter (just to support up to 6 buttons) and just used the jammacon board in combination with the high speed BLISSTER board.
--> MISTER with BLISSTER
--> VGA2Scart cable MISTER into JAMMACON board
--> 2x HDMI to Saturn Adater cable from JAMMACON Saturn Adapter into BLISSTER HighSPeed ports
--> Jamma inteface into the ASTRO Cab Harness
Works great without latency vial Highspeed LLAPI cores.
I don_t have pictures on my hand for now but can send some if anyone is interessted.
This Dilvpoetry 6J1-TUBE preamp with GE 5654W tubes is great for MiSTer. It improves the sound - maybe due to be able to adjust optimal volume - and makes volume correction comfortable and more granular.