msp430f5529低频频率计.doc

#include #include #include Dogs102x6.huint16_t num=10,freq;void main(void)WDTCTL = WDTPW + WDTHOLD; / Stop watchdog timerTA0CCTL0 = CCIE; / CCR0 interrupt enabledTA0CCR0 = 4095;TA0CTL = TASSEL_1 + MC_1 + ID_3 +TACLR; / ACLK, upmode,8fenpin clear TARP1DIR |= BIT0; / Set P1.0 to output directionP2REN |= BIT1; / Enable P1.4 internal resistanceP2OUT |= BIT1; / Set P1.4 as pull-Up resistanceP2IES |= BIT1; / P1.4 Hi/Lo edgeP2IFG &= BIT1; / P1.4 IFG clearedP2IE |= BIT1; / P1.4 interrupt enabled_EINT();Dogs102x6_init(); /初始化LCD Dogs102x6_backlightInit(); /背光初始化 Dogs102x6_setBacklight(11); /设置初始背光值 Dogs102x6_setContrast(11); /设置初始对比度值 Dogs102x6_clearScreen(); /清屏 Dogs102x6_numDisplay(3,0,num,0);/ _bis_SR_register(LPM4_bits + GIE); / Enter LPM4 w/interrupt/ _no_operation(); / For debugger while(1) Dogs102x6_numDisplay(1,0,num,0); Dogs102x6_numDisplay(3,0,freq,0); #pragma vector=TIMER0_A0_VECTOR_interrupt void TIMER0_A0_ISR(void)P1OUT = 0x01; / Toggle P1.0freq = num;num = 0;/ Port 1 interrupt service routine#pragma vector=PORT2_VECTOR_interrupt void Port_2(void)/P1OUT = BIT0; / P1.0 = toggleP2IFG &= BIT1; / P1.4 IFG clearednum+;if(num=100000)num=0;