Texas Instruments MSP430

394
*/
BCSCTL2 = SELM_0 | DIVM_0 | DIVS_3;
if (CALBC1_12MHZ != 0xFF) {
/* Adjust this accordingly to your VCC rise time */
__delay_cycles(100000);
/* Follow recommended flow. First, clear all DCOx and MODx bits. Then
* apply new RSELx values. Finally, apply new DCOx and MODx bit values.
*/
DCOCTL = 0x00;
BCSCTL1 = CALBC1_12MHZ; /* Set DCO to 12MHz */
DCOCTL = CALDCO_12MHZ;
}
/*
* Basic Clock System Control 1
*
* XT2OFF -- Disable XT2CLK
* ~XTS -- Low Frequency
* DIVA_0 -- Divide by 1
*
* Note: ~XTS indicates that XTS has value zero
*/
BCSCTL1 |= XT2OFF | DIVA_0;
/*
* Basic Clock System Control 3
*
* XT2S_0 -- 0.4 - 1 MHz
* LFXT1S_2 -- If XTS = 0, XT1 = VLOCLK ; If XTS = 1, XT1 = 3 - 16-MHz crystal
or resonator
* XCAP_1 -- ~6 pF
*/
BCSCTL3 = XT2S_0 | LFXT1S_2 | XCAP_1;
/* USER CODE START (section: BCSplus_graceInit_epilogue) */
/* User code */
/* USER CODE END (section: BCSplus_graceInit_epilogue) */
}
void sleep(unsigned int time)
{
TA0CCR0 = time;
TA0CTL = TASSEL_1 | ID_0 | MC_1 | TACLR;
TA0CCTL0 &= ~CCIFG;
TA0CCTL0 |= CCIE;
__bis_SR_register(LPM3_bits+GIE);
__no_operation();
}