Beginner With problems to program the Oscillator of the MSP

Development Boards MicroMod
1

A cordial Greeting to all, I am new in this of the microcontroller programming, and I have a problem with the programming of the oscillator, my program is the following one:

void InitOsc(void) 
{
	WDTCTL = WDTPW | WDTHOLD;     // Paramos el watchdog timer
	BCSCTL1 |= XTS; 			// XT1 ~ high-frequency
	_BIC_SR(OSCOFF); 	             // turn on XT1 oscillator

	do 			// wait in loop until crystal is stable
	{
		IFG1 &= ~OFIFG;
		for (ii = 0xFFFF; ii > 0; ii--);
	}
	while (IFG1 & OFIFG);

	BCSCTL1 |= DIVA1 | DIVA0; 	// ACLK = XT1 / 8 = 1 MHz
	IE1 &= ~WDTIE; 			     // desactiva WDT int.

	WDTCTL = WDTPW | WDTTMSEL | WDTCNTCL | WDTSSEL | WDTIS1;		// use WDT as timer, flag each. 512 pulses from ACLK
	IFG1 &= ~WDTIFG; 			// clear WDT int. flag
	while ((IFG1 & WDTIFG)!=0); 	    // cuenta 1024 pulsos XT1 

	IFG1 &= ~OFIFG; 			// clear osc. fault int. flag
	DCOCTL |= DCO2 | DCO1 | DCO0;
	BCSCTL1 |= RSEL2 | RSEL1 | RSEL0;  // MCLK = DCO, 8 MHz  (MCLK=Reloj de la CPU)
}

What happens is that when arriving second “while”, it is begun, we go non sle of the and not you because, my intention is that XT1 oscillates at 8MHz, ACLK = XT1 / 8 = 1 MHz and MCLK=8MHz.

Another problem is that not you that capacities have to put in XIN and XOUT, because alone I use an oscillator, this is due to that not you, you not to find the name of the glass or the “Laud-Capicaty” of the crystal that corresponds XT1.

Once already knowing this you that the capacities XIN and XOUT should be:

C = 2* (Cload-Cpin)

C: each Capicator at XIN and XOUT

Cload: Load-Capicaty demanded by the crystal (found in crystal datasheet)

Cpin: parasitic capacity at the pins of the MSP430 (appr. 2 pF)

Good thank you for their attention and to have if somebody can help me with some of my problems. :roll:[/b]