Quote Originally Posted by sayzer View Post
How does 19200 bps behave at 4MHz?
Would you consider it as safe?
Note:
I think Ski has some "special days" from time to time; and Boban hit one of them.
Ski?
I could've swore that line abouot the resonator wasn't in that post a few minutes ago!

Yes, how does hardware 19,200 run at 4Mhz on a PIC18F2520?
Using one method, you get an +8.51% error in baud rate, doable, sometimes, as long as the sending serial port isn't on the low side, causing the tolerance to be even farther out.
Using the other method, you get a .16% error in baud. The sender has to be out in the weeds to cause that to mess up.
I'm voting for the first method...
It's all in the datasheets on how to set up the serial port using either method...