4 mHz xtal and FullDuplexSerial(Extended)

Whelzorn

I'm sorry, this is probably a ridiculously simple question. But what would I need to change in the FullDuplexSerialExtended object to make it work with a 4mHz xtal (x16 pll) instead of the 5mHz that comes on the dev boards?
If it already does, then I have another error. But I assume the timing is off (either there, or in some other piece of code that is timing sensitive).
thanks

Ariba

You need to change nothing in the Serial-driver. This drivers are programmed to work with different system clocks (in a limited range).
But you have to set the right clock frequency in the Top-object file's CON section:

_clkmode = xtal1 + pll16x
  _xinfreq = 4_000_000

do you call the start-methode of the serial driver before the first communication?

Andy

Whelzorn

hmmm... that's what I did, but it's still not working. Maybe it's the device I'm trying to communicate with.

Whelzorn

Never mind, I got it working. For some reason it wouldn't transmit the data correctly while I was watching it in realterm with the prop plug.