Can someone suggest why serout doesn't work with this board?

[jimseng]

I should have said. I think I have already tried that but I will give it another go. I guess I should try different speeds too.

[jimseng]

Well mode 2 and mode 10 both work. I don't know how I missed it.

[mackrackit]

Well mode 2 and mode 10 both work. I don't know how I missed it.

Any of the TRUE modes should work through the INVERTER chip to a PC terminal.
Not sure why HSEROUT is not working. HSEROUT needs the chip to work with a PC.