Different Oscilator on Felix2.0 electronics

[wmeertens]

Hi,

I wonder if it's possible to change the 16Mhz oscillator to a 18.4320MHz or a 14.7456MHz one.
I think this will give better support in Linux, as this would enable all standard ANSI baudrates.
Which are needed by the Serial I/O layer in MoNo (which is used by the Repetier software)

I'm absolutely no expert at this point so correct me if I'm wrong

As to my understanding this will give full support for all baudrates from 9k6 to 230K4 with a 0% error.
Perhaps it will give errors elsewehere in the firmware, due to too many or too less interupts.
Or perhaps it's not necessary because of the used protocol, though I couldn't communicate with the printer correctly at 230K4.

Regards,
Wouter Meertens

[satoer]

I'm almost sure that will give you a lot of timing problems elsewhere. Every used timer uses interupts. Why don't you just adjust the preferred baudrate in the firmware? This is just readable arduino C code.

[wmeertens]

Yes that's what I did. I changed the baudrate to 115K2. With the 16Mhz oscillator this is the ANSI baudrate with the smallest error rating.
230K4 just didn't work properly.

I haven't tested if it actually matters if the printer is on 115K2 or 250K. For now 115K2 works fine and I didn't yet have any communication errors.

The change of the oscillator was just a brain fart