There is no lag during signal changing between 240p and 480i.
TATE(Vertical) : 240p output
YOKO(Horizontal) : 480i output

Captured by Micomsoft SC-512N1-L/DVI
Source : PS2 SCPH-77000 RGBS output
Output : 1280x960p 59.94Hz
Device : GBS-8200 with Arduino nano
Arduino Firmware ver. : 2018/01/15

Arduino source code
https://github.com/ramapcsx2/gbs-control

Original forum
https://shmups.system11.org/viewtopic...