Hey all, I am starting a new project of creating a OS for the Teensy based on OS-9 from Microware. I have a core going with VGS_T4 library to produce video along with USB keyboard and SD disk access. My issue is the when I first power up the Teensy the VGA does not produce video until I touch the VSYNC pin on the VGA port with my oscilloscopes channel 1 probe. The specs for VGA_t4 state a 82ohm resistor on VSYNC, do I need to maybe add a pullup or pulldown resistor on this tto make it better? I have also found some schematics that use a 68ohm resistor instead of the 82ohm. Will this also make a difference?
Bill
Bill