Configure PIC18f2455 to use RS232

I'm using USART of PIC18f2455 with RS232 and having some trouble to configure it.

I'm using a 24 MHz Crystal Oscillator. The PLL is enabled with prescaler of 6 (to set 4MHz at input) and gives a fixed 96 MHz at output. The postscaler is set to 6 giving at end a 16MHz to Microcontroller clock.

With this clock I set the SPBRG of OpenUSART function to 25 for a Baud Rate of 9600 .

This is my USART config:

#pragma config PLLDIV = 6, CPUDIV = OSC4_PLL6, USBDIV = 2, FOSC = HSPLL_HS OpenUSART(USART_TX_INT_ON & USART_RX_INT_OFF & USART_ASYNCH_MODE & USART_EIGHT_BIT & USART_CONT_RX & USART_BRGH_LOW, 25);

It is getting stuck at OpenUSART function...

Best How To :

For a 16MHz microcontroller clock change USART_BRGH_LOW, 25 to USART_BRGH_HIGH, 103 which will result in 9,615.38 baud (9600 -0.2%). Why not use CPUDIV = OSC1_PLL2 to give you a 48 MHz clock? You'd then use USART_BRGH_LOW, 77.

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For a 16MHz microcontroller clock change USART_BRGH_LOW, 25 to USART_BRGH_HIGH, 103 which will result in 9,615.38 baud (9600 -0.2%). Why not use CPUDIV = OSC1_PLL2 to give you a 48 MHz clock? You'd then use USART_BRGH_LOW, 77.

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