Hi again... I made a simple application to try to find a crystal to make 31.250 and 250.000
The after activated the application, the answer "magically" appeared in the screen in 3.265 seconds!
Just one occurrence between 1mhz and 40mhz, and a comercial value (luck? very much luck?)



WELL VERY NICE! The application calculated it right, this crystal is easy to find, and I have one at home!

Now I think I have a small problem to solve.
8 bit and 9 bit serial data.

Midi is 8bit.
And as I learned to RECEIVE DMX is a 9bit technick

With 8 bit:
To receive Midi should be no problem.
To send DMX, will need one more bit, will work if I wait 4 microseconds after sending a byte?

With 9 bit:
I BELIEVE, if midi command come with a small spacing between bytes it will work, but if they come very near, it wont, I think there is nothing to do.
DMX should be fine.


Also, I never worked with dual baud rates, and duplex mode, how should I make the ISR routine? When should I clear TI and RI? In example, will make an interruption for TI while a RI interruption is running?
What happens when a TI ISR is running then a RI arrives?

There is some problem if during RI ISR I send a byte by serial (MOV Sbuf,...)? (being TX idle of course)



Thanks a lot!


PS: "magically" ... LOL