以下是部分代码：void main(void)
{
WDT_Init(); //看门狗设置
Clock_Init(); //系统时钟设置
rtc();
RTCSEC = 0x00; // Set Seconds
RTCMIN = 0x58; // Set Minutes
RTCHOUR = 0x08; // Set Hours
// Init date
RTCDOW = 0x02; // Set DOW
RTCDAY = 0x23; // Set Day
RTCMON = 0x08; // Set Month
RTCYEAR = 0x2005; // Set Year
initlcd();
p[0]=RTCSEC; //秒
p[1]=RTCMIN; //分
p[2]=RTCHOUR; //时
p[3]=RTCDAY; //日
p[4]=RTCMON; //月
p[5]=RTCYEAR;
disp(13,p[0],16);//显示秒
disp(11,p[1],16);//显示分钟
disp(9,p[2],16);//显示小时
disp(5,p[3],16);//显示日
disp(3,p[4],16);//显示月
disp(1,p[5],16);//显示nian
////////////////////////
void rtc(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop Watchdog Timer
FLL_CTL0 = XCAP11PF; // Configure load caps
P2SEL = BIT4+BIT5; // P2.4,5 = USART0 TXD/RXD
P5DIR |= BIT1; // Set P5.1 to output direction
// SetupUSCI0:
UCA0CTL1 = UCSWRST; // To set hold the module in reset
UCA0CTL1 = UCSSEL0; // ACLK
UCA0BR0 = 13; // 32k - 2400 baudrate control setting
UCA0BR1 = 0;
UCA0MCTL = UCBRS2+UCBRS1; // Second modulation stage values
UCA0STAT = UCFE+UCOE+UCPE+UCBRK+UCRXERR;
// RTC
RTCCTL = RTCBCD+RTCHOLD+RTCMODE_3+RTCTEV_0+RTCIE;
// RTC enable, BCD mode,
// alarm every Minute,
// enable RTC interrupt
// Init time
RTCSEC = 0x00; // Set Seconds
RTCMIN = 0x58; // Set Minutes
RTCHOUR = 0x08; // Set Hours
// Init date
RTCDOW = 0x02; // Set DOW
RTCDAY = 0x23; // Set Day
RTCMON = 0x08; // Set Month
RTCYEAR = 0x2005; // Set Year
RTCCTL &= ~RTCHOLD; // Enable RTC
while (1)
{
//__bis_SR_register(LPM3_bits + GIE); // Enter LPM3 w/ interrupt
__no_operation(); // Required for debugger
tx_char((RTCHOUR>>4)+0x30); // Send high nibble of hour
tx_char((RTCHOUR&0x0F)+0x30); // Send low nibble of hour
tx_char(':'); // Send ':'
tx_char((RTCMIN>>4)+0x30); // Send high nibble of minute
tx_char((RTCMIN&0x0F)+0x30); // Send low nibble of minute
tx_char('\n'); // Send new line
}
}
void tx_char(char c)
{
while ((IFG2 & UCA0TXIFG)==0){} // wait till TXbuf empty
UCA0TXBUF = c; // TX char
}
// Basic Timer interrupt service routine
#pragma vector=BASICTIMER_VECTOR
__interrupt void basic_timer(void)
{
P5OUT ^= BIT1; // Toggle P5.1 using exclusive-OR
LPM3_EXIT; // Exit LPM after interrupt
}
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