MSP430全部程序学习

1、一：基础实验功能：控制IO口实现流水灯的一次点亮并循环下去#includemsp430x14x.hvoid delay(unsigned int a) unsigned int i,j; for(j=a;j0;j-) for(i=80;i0;i-);void main(void) WDTCTL=WDTPW+WDTHOLD; P2DIR|=0XF0; /1111-0000 1表示输出，0表示输入 P2OUT&=0X0F; /0000-1111 输出寄存器 while(1) P2OUT|=BIT4; delay(800); P2OUT|=BIT5; delay(800); P2OUT|=BIT6;

2、 delay(800); P2OUT|=BIT7; delay(800); P2OUT&=0X0F; delay(800); 二：IO口控制（IO口中断）实验功能：利用IO口中断实现按键中断，当按键按下时对应LED等亮#include#pragma vector=PORT2_VECTOR /声明中断源 是IO口2 的中断_interrupt void port2(void);void main(void) WDTCTL=WDTPW+WDTHOLD; _EINT(); P2DIR|=BIT4; P2DIR&=BIT0; P2IE|=BIT0 ; P2IES|=BIT0 ; _BIS_SR(LPM

3、3_bits + GIE); /开总中断 并使CPU进入低功耗模式 while(1);_interrupt void port2(void) if(P2IN&BIT0)=BIT0) P2OUT&=BIT4; else P2OUT|=BIT4; 三：数码管实验功能：编程实现6个数码管依次显示1到6/* _ _ _ _ _ _ f| a |b | | | | | | | | | | |_| |_| |_| |_| |_| |_| e| g |c | | | | | | | | | | |_| |_| |_| |_| |_| |_| d LED6 | LED5 | LED4 | LED3 | LED

4、2 | LED1 | | | | | | P5.7 P5.6 P5.5 P5.4 P5.3 P5.2a-P4.0 b-P4.1 c-P4.2 d-P4.3 e-P4.4 f-P4.5 g-P4.6.-P4.7 段码1选通P5.2-P5.7 位码0导通/ 跳线P14 P15 P5 P6 P7 P8 */#includemsp430x14x.h#define uchar unsigned char unsigned char table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;unsigned char seg=0x7f,0xbf,0xd

5、f,0xef,0xf7,0xfb; void display(uchar i,uchar j) P5OUT=segi; P4OUT=tablej; void main() WDTCTL=WDTPW+WDTHOLD; P5DIR|=(BIT2+BIT3+BIT4+BIT5+BIT6+BIT7); P4DIR|=(BIT0+BIT1+BIT2+BIT3+BIT4+BIT5+BIT6+BIT7); while(1) display(0,1); display(1,2); display(2,3); display(3,4); display(4,5); display(5,6); 四：独立按键综合实

6、验/*/ 描述：/ 有按键中断时，LED5,LED6,LED7,LED8亮与灭；/ / 跳线：P9 P10 P17 *#include #define led5_pout P2DIR|=BIT4 /通讯状态指示灯 设置为输出口#define led5_high P2OUT|=BIT4 /通讯状态指示灯 输出高 点亮指示灯#define led5_low P2OUT&=BIT4 /通讯状态指示灯 输出低 关闭指示灯#define led6_pout P2DIR|=BIT5 /通讯状态指示灯 设置为输出口#define led6_high P2OUT|=BIT5 /通讯状态指示灯 输出高 点亮指示

7、灯#define led6_low P2OUT&=BIT5 /通讯状态指示灯 输出低 关闭指示灯#define led7_pout P2DIR|=BIT6 /通讯状态指示灯 设置为输出口#define led7_high P2OUT|=BIT6 /通讯状态指示灯 输出高 点亮指示灯#define led7_low P2OUT&=BIT6 /通讯状态指示灯 输出低 关闭指示灯#define led8_pout P2DIR|=BIT7 /通讯状态指示灯 设置为输出口#define led8_high P2OUT|=BIT7 /通讯状态指示灯 输出高 点亮指示灯#define led8_low P2

8、OUT&=BIT7 /通讯状态指示灯 输出低 关闭指示灯unsigned char led5,led6,led7,led8,flag;void delay(unsigned int i) while(i-);void IOinit(void) led5_pout; led6_pout; led7_pout; led8_pout; led5_low; led6_low; led7_low; led8_low; P2IE|=BIT0+BIT1+BIT2+BIT3; P2IES|=BIT0+BIT1+BIT2+BIT3;void main(void) WDTCTL=WDTPW+WDTHOLD; IO

9、init(); _EINT(); while(1) switch(flag) case 1: if(led5%2) led5_high; else led5_low; flag=0; break; case 2: if(led6%2)led6_high; else led6_low; flag=0; break; case 3: if(led7%2)led7_high; else led7_low; flag=0; break; case 4: if(led8%2)led8_high; else led8_low; flag=0; break; default: break; _BIS_SR(

10、LPM3_bits+GIE); #pragma vector=PORT2_VECTOR_interrupt void port2 (void) delay(40000);/去抖； if(P2IFG&BIT0)=BIT0) led5+; flag=1; if(P2IFG&BIT1)=BIT1) led6+; flag=2; if(P2IFG&BIT2)=BIT2) led7+; flag=3; if(P2IFG&BIT3)=BIT3) led8+; flag=4; P2IFG=0; _BIC_SR_IRQ(LPM3_bits); 五：行列式键盘实验/*/ P6.7 P6.6 P6.5 +3V/

11、| | | |/ P6.1- /- /- /-R-| / | | | |/ P6.2- /- /- /-R-| / | | | |/ P6.3- /- /- /-R-| / | | | |/ P6.4- /- /- /-R-| / 跳线 P2 P3 */#includemsp430x14x.h#includekey.h void delay(unsigned int i) while(i-);unsigned char key(void) unsigned char x=0XFF; P6DIR=0XE0; P6OUT=0X7F;/ /扫描第一列 if(P6IN&0X02)=0X00) x=12

12、; /x=0; else if(P6IN&0X04)=0) x=11;/x=1; else if(P6IN&0X08)=0) x=10;/x=2; else if(P6IN&0X10)=0) x=9; else P6OUT=0XBF;/ /扫描第二列 if(P6IN&0X02)=0X00) x=8; /x=0; else if(P6IN&0X04)=0) x=7;/x=1; else if(P6IN&0X08)=0) x=6;/x=2; else if(P6IN&0X10)=0) x=5; else P6OUT=0XDF;/扫描第三列 if(P6IN&0X02)=0X00) x=4; /x=0

13、; else if(P6IN&0X04)=0) x=3;/x=1; else if(P6IN&0X08)=0) x=2;/x=2; else if(P6IN&0X10)=0) x=1; return(x);unsigned char get_key(void) unsigned char x,y; if(P6IN&0X1F)!=0X1F) delay(20); if(P6IN&0X1F)!=0X1F) x=key(); if(x!=0xFF) y=x; return y;六：看门狗程序/*/ MSP430F149/ -/ /| XIN|-/ | | |/ -|RST XOUT|-/ | |/

14、| P1.1|-LED/*#include void main(void) WDTCTL = WDT_MDLY_0_064; / Set Watchdog Timer interval to 30ms IE1 |= WDTIE; / Enable WDT interrupt P1DIR |= 0x02; / Set P1.1 to output direction _BIS_SR(LPM0_bits + GIE); / Enter LPM0 w/ interrupt/ Watchdog Timer interrupt service routine#pragma vector=WDT_VECT

15、OR_interrupt void watchdog_timer(void) P1OUT = 0x02; / Toggle P1.1 using exclusive-OR七：TimerA 定时/计数器/*/ MSP-FET430P140 Demo - Timer_A, Toggle P1.1/TA0, Up Mode, 32kHz ACLK/ Description: Toggle P1.1 using hardware TA0 output. Timer_A is configured/ for up mode with CCR0 defining period, TA0 also outp

16、ut on P1.1. In this/ example, CCR0 is loaded with 1000-1 and TA0 will toggle P1.1 at TACLK/1000./ Thus the output frequency on P1.1 will be the TACLK/2000. No CPU or software/ resources required. Normal operating mode is LPM3./ As coded with TACLK = ACLK, P1.1 output frequency = 32768/2000 = 16.384H

17、z./ ACLK = TACLK = 32kHz, MCLK = default DCO 800kHz/ /* External watch crystal installed on XIN XOUT is required for ACLK */ MSP430F149/ -/ /| XIN|-/ | | | 32kHz/ -|RST XOUT|-/ | |/ | P1.1/TA0|- ACLK/2000/ 跳线：J10 Timer_A P0/*#include void main(void) WDTCTL = WDTPW + WDTHOLD; / Stop WDT P1DIR |= 0x02

18、; / P1.1 output 选择P1.1为输出 P1SEL |= 0x02; / P1.1 option select外围模块 CCTL0 = OUTMOD_4; / CCR0 toggle mode 输出为反转模式 CCR0 = 1000-1; TACTL = TASSEL_1 + MC_1; / ACLK, upmode _BIS_SR(LPM3_bits); / Enter LPM3 w/interrupt/#include/typedef unsigned char uchar;/typedef unsigned int uint;/uchar flag=0;/void main(

19、void)/ WDTCTL=WDTPW+WDTHOLD;/ BCSCTL1 &= XT2OFF;/ BCSCTL2 |=SELS+DIVS_3;/ P3DIR |= BIT4;/ TACTL=TASSEL_2+MC_2+TAIE; /_BIS_SR(LPW0_bits+GIE);/Timer_A3 Interrupt Vector( TATV) handler/#pragma vector=TIMERA1_VECTOR/_interrupt void Timer_A(void)/ switch(TAIV)/ / case 2: break;/ case 4: break;/ case 10:

20、P4OUT =BIT5;/ break;/ /Timer A0 interrupt service routine/#pragma vector=TIMERA0_VECTOR/_interrupt void Timer_A (void)/ P4OUT = BIT5;/八：TimerB 定时/计数器/*/ MSP-FET430P140 Demo - Timer_B, Toggle P1.1, CCR0 Up Mode ISR, 32kHz ACLK/ Description: Toggle P1.1 using software and the TB_0 ISR. Timer_B is/ con

21、figured for up mode, thus the timer overflows when TBR counts/ to CCR0. In this example, CCR0 is loaded with 1000-1./ Toggle rate = 32768Hz/(2*1000) = 16.384Hz/ ACLK = TBCLK = 32kHz, MCLK = SMCLK = default DCO 800kHz/ /* An external watch crystal on XIN XOUT is required for ACLK */ MSP430F149/ -/ /|

22、 XIN|-/ | | | 32kHz/ -|RST XOUT|-/ | |/ | P1.1|-LED/ 跳线：J10 Timer_A P0/*#include void main(void) WDTCTL = WDTPW + WDTHOLD; / Stop WDT P1DIR |= 0x02; / Set P1.1 to output direction TBCTL = TBSSEL_1 + TBCLR; / ACLK, clear TBR TBCCTL0 = CCIE; / TRCCR0 interrupt enabled TBCCR0 = 1000-1; TBCTL = TBSSEL_1

23、 + MC_1; / ACLK, upmode _BIS_SR(LPM3_bits + GIE); / Enter LPM3 w/ interrupt/ Timer B0 interrupt service routine#pragma vector=TIMERB0_VECTOR_interrupt void Timer_B (void) P1OUT = 0x02; / Toggle P1.1 using exclusive-OR九：串口通信实验一/*/ MSP-FET430P140 Demo - USART0, / Description: USART0 RX interrupt trigg

24、ers TX Echo. Though not required, / Baud rate divider with 3.2768Mhz XTAL 9600 = 3.2768MHz/9600 = 0003h;/ MSP430F149/ -/ /| XIN|-/ | | | 3.2768MHz/ -|RST XOUT|-/ | |/ | P3.4|-/ | | 9600 / | P3.5|-/ 跳线 串行( P8 P9) 数码管( P14 P15 P5 P6 P7 P8) *#include #include led.h#define uchar unsigned char extern uns

25、igned char num11;extern unsigned char wei7;extern void display(uchar W,uchar sz);uchar aa;/*串口初试化设置*/void uart_org(void) ME1 |= UTXE0 + URXE0; / Enable USART0 TXD/RXD /使能串口 UCTL0 |= CHAR; / 8-bit character /数据格式为8位 UTCTL0 |= SSEL0; / UCLK = ACLK /选择时钟来源 UBR00= 0x03; / 32768/9600 /波特率寄存器低字节 UBR10= 0x

26、00; /波特率寄存器高字节 UMCTL0= 0x4a; /由于波特率计数有余数，填写波特率调整寄存器 P3SEL |= 0x30; / P3.4,5 = USART0 TXD/RXD 定义串口功能引脚 P3DIR |= 0x10; /P3.4口为输出，其余为输人口 UCTL0 &= SWRST; / Initialize USART state machine IE1 |= URXIE0; / Enable USART0 RX interrupt 接受数据能中断/*串口发送字符串程序*/void UartStr(unsigned char *p) *p=0x02; /unsigned cha

27、r str unsigned char i; for (i=0;*p!=0;i+) /准备要发送的数据 /下句UTXIFG0=1则正在发送数据，即不再发送其它数据 while (!(IFG1 & UTXIFG0); / USART0 TX buffer ready?判断缓冲区是否为空 TXBUF0 =*p+; / RXBUF0 to TXBUF0 /发送数据到串口 while (UTCTL0 & TXEPT) = 0); /判断数据是否发送完毕 _NOP();void main() WDTCTL=WDTPW+WDTHOLD; /关闭看门狗 uart_org( ); /串口初始化 _EINT()

28、; /总中断开启 UartStr(请输入abcdef之一!rtn); UartStr(a-1,b-2,c-3,d-4,e-5,f-6rtn); while(1) switch (aa) case 97:display(0,1); break; case 98:display(1,2);break; case 99:display(2,3);break; case 100:display(3,4);break; case 101:display(4,5);break; case 102:display(5,6);break; default:break; _BIS_SR(LPM3_bits+GI

29、E); /初始化完毕，进入睡眠状态 #pragma vector=UART0RX_VECTOR_interrupt void usart0_rx (void) aa=RXBUF0; /接收的数据赋值给 aa _BIC_SR_IRQ(LPM3_bits); /停止休眠十：串口通信实验二/*/ MSP-FET430P140 Demo - USART1, / Description: USART0 RX interrupt triggers TX Echo. Though not required, / Baud rate divider with 3.2768Mhz XTAL 9600 = 3.2

30、768MHz/9600 = 0003h;/ MSP430F149/ -/ /| XIN|-/ | | | 3.2768MHz/ -|RST XOUT|-/ | |/ | P3.6|-/ | | 9600 / | P3.7|-/ 跳线 串行( P8 ) *#include unsigned char send,NR,zs; unsigned char tx_buf20;/*延时*void delay( char i) unsigned char aa=10; while(aa-) while(i-);/*串口初试化设置*/void uart_org(void) ME2 |= UTXE1 + UR

31、XE1; / Enable USART1 TXD/RXD UCTL1 |= CHAR; / 8-bit character UTCTL1 |= SSEL0; / UCLK = ACLK UBR01 = 0x03; / 32768/9600 UBR11 = 0x00; / UMCTL1 = 0x4a; / modulation P3SEL |= 0xC0; UCTL1 &= SWRST; / Initialize USART state machine IE2 |= URXIE1; / Enable USART1 RX interrupt/*发送数据*void Uart_Str(unsigned

32、 char number,unsigned char *p) unsigned char i; for (i=0;inumber;i+)/准备要发送的数据 while (!(IFG2 & UTXIFG1);/ USART0 TX buffer ready? TXBUF1 =*p+; / RXBUF0 to TXBUF0 while (UTCTL1 & TXEPT) = 0); _NOP();/*发送数据*void UartStr(unsigned char *p) unsigned char i; for (i=0;*p!=0;i+)/准备要发送的数据 while (!(IFG2 & UTXI

33、FG1);/ USART0 TX buffer ready? TXBUF1 =*p+; / RXBUF0 to TXBUF0 while (UTCTL1 & TXEPT) = 0); _NOP();/*接收串行数据*/void AddUsData(unsigned char sq0) if(NR0;i-) tx_bufi=0; zs=0; NR=0; _BIS_SR(LPM3_bits+GIE); #pragma vector=UART1RX_VECTOR_interrupt void usart1_rx (void) zs+; AddUsData(RXBUF1); _BIC_SR_IRQ(L

34、PM3_bits); 十一：AD转换实验/*/ MSP-FET430P140 Demo - ADC12, Sample A0, Set P1.0 if A0 0.5*AVcc/ Description: A single sample is made on A0 with reference to AVcc./ Software sets ADC10SC to start sample and conversion - ADC12SC/ automatically cleared at EOC. ADC12 internal oscillator times sample (16x)/ and

35、 conversion. In Mainloop MSP430 waits in LPM0 to save power until ADC12/ conversion complete, ADC12_ISR will force exit from LPM0 in Mainloop on/ reti. If A0 0.5*AVcc, P1.0 set, else reset./ MSP430F149/ -/ /| XIN|-/ | | |/ -|RST XOUT|-/ | |/ Vin-|P6.7/A7 P2 |- LED/*#include #define led5_pout P2DIR|=BIT4 /通讯状态指示灯 设置为输出口#define led5_high P2OUT|=BIT4 /通讯状态指示灯 输