基于MSP430F249的点阵仿真(源码+仿真）

/****************************************************************** * 实验名称：IO特性(MSP430F249) * * 实验说明： * 通设置系统主时钟(MCLK=8Mhz ) 、辅助时钟(ACLK=8Mhz )、 * 子系统时钟(SMCLK=8Mhz ) * 编译软件：Embedded Workbench 5.3 * *仿真软件：proteus7.7 sp 2 * *作者：hameyou QQ:385434903 * *日期：2010-7-31 ******************************************************************/ #include <MSP430x24x.h> #define uchar unsigned char #define uint unsigned int #define LCK_SET P1OUT|=0x10 #define LCK_CLR P1OUT&=~0x10 #define E_SET P1OUT|=0x20 #define E_CLR P1OUT&=~0x20 const uchar Num[]= {0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00,/*"0",0*/ 0x00,0x00,0x00,0x08,0x0E,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x3E,0x00,0x00,/*"1",1*/ 0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x20,0x20,0x10,0x08,0x04,0x42,0x7E,0x00,0x00,/*"2",2*/ 0x00,0x00,0x00,0x3C,0x42,0x42,0x20,0x18,0x20,0x40,0x40,0x42,0x22,0x1C,0x00,0x00,/*"3",3*/ 0x00,0x00,0x00,0x20,0x30,0x28,0x24,0x24,0x22,0x22,0x7E,0x20,0x20,0x78,0x00,0x00,/*"4",4*/ 0x00,0x00,0x00,0x7E,0x02,0x02,0x02,0x1A,0x26,0x40,0x40,0x42,0x22,0x1C,0x00,0x00,/*"5",5*/ 0x00,0x00,0x00,0x38,0x24,0x02,0x02,0x1A,0x26,0x42,0x42,0x42,0x24,0x18,0x00,0x00,/*"6",6*/ 0x00,0x00,0x00,0x7E,0x22,0x22,0x10,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x00,/*"7",7*/ 0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00,/*"8",8*/ 0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x64,0x58,0x40,0x40,0x24,0x1C,0x00,0x00,/*"9",9*/ }; void delayms(uint t) { uint i; while(t--) for(i=5000;i>0;i--);//进过参数的调整 1330 } void SPI_Init() { P3SEL |= 0x11; // P3.0,4 USCI_A0 option select UCA0CTL0 |= UCCKPH + UCMSB + UCMST + UCSYNC; // 3-pin, 8-bit SPI master UCA0CTL1 |= UCSSEL_2; // SMCLK UCA0BR0 |= 0x02; UCA0BR1 = 0; UCA0MCTL = 0; UCA0CTL1 &= ~UCSWRST; // **Initialize USCI state machine** } void Init_Timer_A(void) { CCTL0 = CCIE; // 使能CCR0 中断 TAR=0xFC18; // 计数装入初值 TACTL=TASSEL_2+MC_2+TAIE+ID_3;//设置时钟源和计数模式 采用SMCLK/8 =1Mhz } void SendSpi(uchar Data) { while (!(IFG2 & UCA0TXIFG)); UCA0TXBUF = Data; } void main(void) { WDTCTL=WDTPW + WDTHOLD; // 关闭看门狗 SPI_Init(); Init_Timer_A(); P1SEL=0; // 设置为普通I/O 口 P1DIR=0x3f; // 设置方向 P1OUT=0xFF; // 设置初始值 P4DIR=0x01; P4SEL=0; _BIS_SR(LPM0_bits+ GIE);//进入低功耗睡眠模式 while(1) { //_BIS_SR(LPM0_bits+ GIE);//进入低功耗睡眠模式 } } #pragma vector=TIMERA0_VECTOR //定时器A 中断服务程序 __interrupt void Timer_a(void) { static uchar i,timer; static uint count; switch(TAIV) //TAIV 表示中断向量号 { case 2:break; case 4:break; case 10: //TAIV=10 表示中断计数器溢出中断 TAR=65536-1000; // (65536-1000) if(++count==100) { count=0; if(++timer==100) timer=0; } SendSpi(~Num[i+(timer%10)*16]); SendSpi(~Num[i+(timer/10)*16]); E_SET; LCK_CLR; LCK_SET; P1OUT=i; E_CLR; P4OUT^=0x01; //delayms(1); if(++i==16) i=0; } //LPM0_EXIT; }