The math says that you need an XTAL frequency which is an integer multiple of 9.I am sorry I don't get the calculations. Kindly explain it with an other example. I have 16 MHz and 20 MHz XTAL crystals. I need to find and buy 18F PIC Microcontroller which can work for 115 K and higher baud rates.
Congratulations for reading the data sheet.I guess the formula for calculating the baud rates are below.
SPBRG = (Fosc / (16 x Baud rate)) - 1, BRGH = 1 High Speed
SPBRG = (Fosc / (64 x Baud rate)) - 1, BRGH = 0 Low Speed
But time to go back and read it again.Question is it possible to get Fosc = 12 MHz from XTAL 16 MHz or 20 MHz ?
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