msp430f6638单片机实验程序

1、实验一验证性试验#include int flag;void DCmotor(int p) switch(p) case 0:/停转 P1OUT &= BIT0; P1OUT &= BIT6; P1OUT &= BIT7; break; case 1:/正转 P1OUT |= BIT0; P1OUT |= BIT6; P1OUT &= BIT7; break; case 2:/反转 P1OUT |= BIT0; P1OUT &= BIT6; P1OUT |= BIT7; break; int main(void) WDTCTL = WDTPW | WDTHOLD;/ Stop watchdog

2、 timer P4REN |=BIT0+BIT1+BIT2+BIT3+BIT4; / 上下拉电阻使能 P4OUT |=BIT0+BIT1+BIT2+BIT3+BIT4; /设置为上拉电阻 P4DIR |=BIT5+BIT6+BIT7; /LED管脚设置 P5DIR |=BIT7; P8DIR |=BIT0; P1DIR |= BIT0+BIT6+BIT7; while(1) if(P4IN&BIT0)=0) /按键S7 _delay_cycles(160000); if(P4IN&BIT0)=0) flag=2; if(P4IN&BIT4)=0) /按键S3 _delay_cycles(160

3、000); if(P4IN&BIT4)=0) flag=1; DCmotor(flag);设计性试验#include int main(void)WDTCTL = WDTPW +WDTHOLD;P4REN |=BIT0+BIT2+BIT4; P4OUT |=BIT0+BIT2+BIT4; P1DIR |=BIT0+BIT6+BIT7; while(1)if(P4IN&BIT0)=0)_delay_cycles(160000); if(P4IN&BIT0)=0) P1OUT |=BIT0; P1OUT |=BIT6; P1OUT &=BIT7; if(P4IN&BIT4)=0)_delay_cy

4、cles(160000); if(P4IN&BIT4)=0) P1OUT |=BIT0; P1OUT &=BIT6; P1OUT |=BIT7; if(P4IN&BIT2)=0)_delay_cycles(160000); if(P4IN&BIT2)=0) P1OUT &=BIT0; 1、验证性实验：利用 MSP430F6638 开发板上的拨盘电位器，控制改变AD 转换的输入电压值，转换后的数字量显示在段式液晶上面。使用万用表测得当前输入电压，通过计算得到转换后的理想的数字量与液晶显示的数字量进行比较。/* * main.c */#include #include #include #incl

5、ude #include dr_lcdseg.h /调用段式液晶驱动头文件#define XT2_FREQ 4000000#define MCLK_FREQ 16000000#define SMCLK_FREQ 4000000void initAdc() ADC12CTL0 |= ADC12MSC;/自动循环采样转换 ADC12CTL0 |= ADC12ON;/启动ADC12模块 ADC12CTL1 |= ADC12CONSEQ1 ;/选择单通道循环采样转换 ADC12CTL1 |= ADC12SHP;/采样保持模式 ADC12MCTL0 |= ADC12INCH_15; /选择通道15，连接

6、拨码电位器 ADC12CTL0 |= ADC12ENC;void initClock() while(BAKCTL & LOCKIO) /解锁XT1引脚操作 BAKCTL &= (LOCKIO); UCSCTL6 &= XT1OFF; /启动XT1，选择内部时钟源 P7SEL |= BIT2 + BIT3; /XT2引脚功能选择 UCSCTL6 &= XT2OFF; /启动XT2while (SFRIFG1 & OFIFG) /等待XT1、XT2与DCO稳定 UCSCTL7 &= (DCOFFG+XT1LFOFFG+XT2OFFG); SFRIFG1 &= OFIFG; UCSCTL4 = S

7、ELA_XT1CLK + SELS_XT2CLK + SELM_XT2CLK; /避免DCO调整中跑飞 UCSCTL1 = DCORSEL_5; /6000kHz23.7MHz UCSCTL2 = MCLK_FREQ / (XT2_FREQ / 16); /XT2频率较高，分频后作为基准可获得更高的精度 UCSCTL3 = SELREF_XT2CLK + FLLREFDIV_16; /XT2进行16分频后作为基准 while (SFRIFG1 & OFIFG) /等待XT1、XT2与DCO稳定 UCSCTL7 &= (DCOFFG+XT1LFOFFG+XT2OFFG); SFRIFG1 &=

8、OFIFG; UCSCTL5 = DIVA_1 + DIVS_1 + DIVM_1; /设定几个CLK的分频 UCSCTL4 = SELA_XT1CLK + SELS_XT2CLK + SELM_DCOCLK; /设定几个CLK的时钟源void main(void) WDTCTL = WDTPW | WDTHOLD;/ 停止看门狗 initClock(); /配置系统时钟 initLcdSeg(); /初始化段式液晶 initAdc(); /初始化ADC volatile unsigned int value = 0;/设置判断变量 while(1) /进入程序主循环 ADC12CTL0 |=

9、 ADC12SC;/开始采样转换 value = ADC12MEM0;/把结果赋给变量 LCDSEG_DisplayNumber(value,0); /显示六位数，从111111-999999 _delay_cycles(MCLK_FREQ/2);/延时500ms 2、设计性实验：AD 转换结束会产生中断，编写AD 中断服务程序。利用信号发生器输出信号（例如正弦波、三角波信号）作为AD 转换的输入，根据输入电压的大小控制LED 灯的亮灭(例如随着输入电压值的增大，LED1 到LED5 按顺序点亮；随着输入电压值减小，LED 灯按顺序熄灭)，LED 和单片机IO 口连接如下图所示。#includ

10、e int main(void)WDTCTL = WDTPW +WDTHOLD;P4DIR|=BIT5+BIT6+BIT7;P5DIR|=BIT7;P8DIR|=BIT0;ADC12CTL0=ADC12MSC+ADC12ON+ADC12SHT1_8;ADC12CTL1=ADC12CONSEQ1+ADC12SHP;ADC12MCTL0=ADC12INCH_7;ADC12CTL0|=ADC12ENC;ADC12IE|=BIT0;ADC12CTL0|=ADC12SC;_EINT();#pragma vector=ADC12_VECTOR_interrupt void ADC12ISR(void)if

11、(ADC12MEM0=3413)P4OUT|=BIT5+BIT6+BIT7;P5OUT|=BIT7;P8OUT|=BIT0;if(ADC12MEM0=2730)P4OUT&=BIT5;P4OUT|=BIT7+BIT6;P5OUT|=BIT7;P8OUT|=BIT0;if(ADC12MEM0=2048)P4OUT&=(BIT6+BIT5);P4OUT|=BIT7;P5OUT|=BIT7;P8OUT|=BIT0;if(ADC12MEM0=1365)P4OUT&=(BIT5+BIT6+BIT7);P5OUT|=BIT7;P8OUT|=BIT0;if(ADC12MEM0=683)P4OUT&=(BIT

12、5+BIT6+BIT7);P5OUT&=BIT7;P8OUT|=BIT0;if(ADC12MEM00)P4OUT&=(BIT5+BIT6+BIT7);P5OUT&=BIT7;P8OUT&=BIT0;实验四 Zigbee无线通信及RS232串口通信实验 1、验证性实验利用两个Zigbee模块通信，一个模块作发射，一个作接收。发射模块所在实验箱按下按键控制接收模块所在实验箱上LED1的亮灭，从而实现无线点灯的功能。#include typedef unsigned char uint8; / 无符号8位整型变量typedef signed char int8; / 有符号8位整型变量typedef

13、 unsigned short uint16; /无符号16位整型变量typedef signed short int16; /有符号16位整型变量typedef unsigned long uint32; / 无符号32位整型变量typedef signed long int32; / 有符号32位整型变量typedef float fp32; / 单精度浮点数（32位长度）typedef double fp64; /双精度浮点数（64位长度）#define TRUE 1#define FALSE 0#define NULL 0/-CC2520引脚定义-#define RESET_ON()

14、P4OUT |= BIT1#define RESET_OFF() P4OUT &=BIT1#define SCLK_ON() P2OUT |= BIT4#define SCLK_OFF() P2OUT &=BIT4#define MOSI_ON() P2OUT |= BIT5#define MOSI_OFF() P2OUT &=BIT5#define CSN_ON() P3OUT |= BIT5#define CSN_OFF() P3OUT &=BIT5#define VREG_EN_ON() P4OUT |= BIT4#define VREG_EN_OFF() P4OUT &=BIT4#de

15、fine MISO_IN (P2IN&BIT6) /P2.6/#define GPIO4_IN (P2IN&0x40)/#define GPIO5_IN (P2IN&0x20)#define GPIO0_IN (P4IN&BIT0) /P4.0#define GPIO1_IN (P4IN&BIT2) /P4.2/-LED-#define LED1_0 P8OUT &=BIT0 /输出0#define LED1_1 P8OUT |= BIT0 /输出1#define LED1_10 P8OUT = BIT0 /输出1/0#define LED2_0 P5OUT &=BIT7 /输出0#defin

16、e LED2_1 P5OUT |= BIT7 /输出1#define LED2_10 P5OUT = BIT7 /输出1/0/-BELL-#define BELL_0 P6OUT &=BIT3 /输出0#define BELL_1 P6OUT |= BIT3 /输出1/-射频芯片相关定义-#define REG_READ (0x80)#define REG_WRITE (0xC0)#define MEM_READ (0x10)#define MEM_WRITE (0x20)#define RXFIFO_READ (0x30)#define TXFIFO_WRITE (0x3A)/- CC252

17、0 命令字定义-#define CMD_SNOP (0x00)#define CMD_IBUFLD (0x02)#define CMD_SIBUFEX (0x03)#define CMD_SSAMPLECCA (0x04)#define CMD_SRES (0x09)#define CMD_SXOSCON (0x40)#define CMD_SRXON (0x42)#define CMD_STXON (0x43)#define CMD_SRFOFF (0x45)#define CMD_SFLUSHRX (0x47)#define CMD_SFLUSHTX (0x48)/- CC2520 配置寄

18、存器-#define FRMFILT0 (0x00)#define FRMFILT1 (0x01)#define SRCMATCH (0x02)#define SRCSHORTEN0 (0x04)#define SRCSHORTEN1 (0x05)#define SRCSHORTEN2 (0x06)#define SRCEXTEN0 (0x08)#define SRCEXTEN1 (0x09)#define SRCEXTEN2 (0x0A)#define FRMCTRL0 (0x0C)#define FRMCTRL1 (0x0D)#define RXENABLE0 (0x0E)#define

19、RXENABLE1 (0x0F)#define EXCFLAG0 (0x10)#define EXCFLAG1 (0x11)#define EXCFLAG2 (0x12)#define EXCMASKA0 (0x14)#define EXCMASKA1 (0x15)#define EXCMASKA2 (0x16)#define EXCMASKB0 (0x18)#define EXCMASKB1 (0x19)#define EXCMASKB2 (0x1A)#define EXCBINDX0 (0x1C)#define EXCBINDX1 (0x1D)#define EXCBINDY0 (0x1E

20、)#define EXCBINDY1 (0x1F)#define GPIOCTRL0 (0x20)#define GPIOCTRL1 (0x21)#define GPIOCTRL2 (0x22)#define GPIOCTRL3 (0x23)#define GPIOCTRL4 (0x24)#define GPIOCTRL5 (0x25)#define GPIOPOLARITY (0x26)#define GPIOCTRL (0x28)#define DPUCON (0x2A)#define DPUSTAT (0x2C)#define FREQCTRL (0x2E)#define FREQTUN

21、E (0x2F)#define TXPOWER (0x30)#define FSMSTAT0 (0x32)#define FSMSTAT1 (0x33)#define FIFOPCTRL (0x34)#define FSMCTRL (0x35)#define CCACTRL0 (0x36)#define CCACTRL1 (0x37)#define RSSI (0x38)#define RSSISTAT (0x39)#define RXFIRST (0x3C)#define RXFIFOCNT (0x3E)#define TXFIFOCNT (0x3F)/-PSDU相关定义-/FRAME_CO

22、NTROL_FIELD/FRAME_TYPE#define FRAME_TYPE_BEACCON 0x00#define FRAME_TYPE_DATA 0x01#define FRAME_TYPE_ACK 0x02#define FRAME_TYPE_MAC 0x03#define SECURITY_ENABLE 0x00#define FRAME_PENDING 0x00#define ACKNOWLEDGMENT_REQUEST 0x00#define PAN_ID_COMPRESSION 0x00#define DEST_ADDRESSING_MODE 0x03#define FRAM

23、E_VERSION 0x01#define SOURCE_ADDRESSING_MODE 0x03/#define SEQUENCE_NUMBER 0x02/- CC2520 RAM 地址-#define RAM_IEEEADR (0xEA)#define RAM_PANID (0xF2)#define RAM_SHORTADR (0xF4)/-函数原型-void CC2520_Init(void);uint8 CC2520_ReadReg(uint8 addr);void CC2520_WriteReg(uint8 addr, uint8 value);uint8 CC2520_ReadRA

24、M(uint8 addrH,uint8 addrL);void CC2520_WriteRAM(uint8 addrH,uint8 addrL, uint8 value);void CC2520_ReadRXFIFO(void);void CC2520_WriteTXFIFO(void);void CC2520_Command(uint8 cmd);void CC2520_SetRxMode(void);uint8 CC2520_RxPacket(void) ;void CC2520_TxPacket(void);void SPI_Init(void);uint8 SPI_Read(void)

25、;void SPI_Write(uint8 txdata);uint8 SPI_WriteRead(uint8 txdata);void IO_Init(void);void delay_ms(uint8 n);void delay_10us(uint8 n);#define CC2520_PSDU_Len 127uint8 CC2520_PSDU1+CC2520_PSDU_Len;uint8 CC2520_PSDU1+CC2520_PSDU_Len;uint8 CC2520_Source_PANID2 = 0xcc,0xcc;uint8 CC2520_Source_ShortAddr2 =

26、0xcc,0xcc;uint8 CC2520_Source_IEEEAddr8 = 0x12,0x34,0x56,0x7c,0xcc,0xcc,0xcc,0xcc;uint8 CC2520_Destination_PANID2 = 0xcc,0xcc;uint8 CC2520_Destination_ShortAddr2 = 0xcc,0xcc;uint8 CC2520_Destination_IEEEAddr8 = 0x12,0x34,0x56,0x7c,0xcc,0xcc,0xcc,0xcc;/*/系统初始化/*void InitSys() P1DIR |= BIT0; / ACLK se

27、t out to pins P1SEL |= BIT0; P3DIR |= BIT4; / SMCLK set out to pins P3SEL |= BIT4; while(BAKCTL & LOCKIO) / Unlock XT1 pins for operation BAKCTL &= (LOCKIO); UCSCTL6 &= (XT1OFF); / XT1 On UCSCTL6 |= XCAP_3; / Internal load cap / Loop until XT1 fault flag is cleared do UCSCTL7 &= (XT2OFFG + XT1LFOFFG

28、 + DCOFFG); / Clear XT2,XT1,DCO fault flags SFRIFG1 &= OFIFG; / Clear fault flags while (SFRIFG1&OFIFG); / Test oscillator fault flag / Initialize DCO to 2.45MHz _bis_SR_register(SCG0); / Disable the FLL control loop UCSCTL0 = 0x0000; / Set lowest possible DCOx, MODx UCSCTL1 = DCORSEL_5; / Set RSELx

29、 for DCO = 8 MHz UCSCTL2 = FLLD_1 + 243; / Set DCO Multiplier for 2.45MHz / (N + 1) * FLLRef = Fdco / (243 + 1) * 32768 = 8MHz / Set FLL Div = fDCOCLK/2 _bic_SR_register(SCG0); / Enable the FLL control loop / Worst-case settling time for the DCO when the DCO range bits have been / changed is n x 32

30、x 32 x f_MCLK / f_FLL_reference. See UCS chapter in 5xx / UG for optimization. / 32 x 32 x 2.45 MHz / 32,768 Hz = 76563 = MCLK cycles for DCO to settle _delay_cycles(250000); / Loop until XT1,XT2 & DCO fault flag is cleared do UCSCTL7 &= (XT2OFFG + XT1LFOFFG + XT1HFOFFG + DCOFFG); / Clear XT2,XT1,DC

31、O fault flags SFRIFG1 &= OFIFG; / Clear fault flags while (SFRIFG1&OFIFG); /UCSCTL4 =SELM_DCOCLK+SELM_DCOCLK;/-SPI初始化函数-void SPI_Init(void)SCLK_OFF();CSN_ON();/-SPI单字节读取函数-uint8 SPI_Read(void)uint8 i,rxdata;rxdata = 0x00;for (i = 0;i 8;i+)rxdata = rxdata1;SCLK_ON();if (MISO_IN) rxdata |= 0x01;elserx

32、data &= 0x01;SCLK_OFF(); return rxdata;/-SPI单字节写入函数-void SPI_Write(uint8 txdata)uint8 i;for (i = 0;i 8;i+)if (txdata&0x80)MOSI_ON();elseMOSI_OFF();SCLK_ON();txdata = txdata1;SCLK_OFF();/-SPI单字节写入读取函数-uint8 SPI_WriteRead(uint8 txdata)uint8 i,rxdata;rxdata = 0x00;for (i = 0;i 8;i+)rxdata = rxdata1;if

33、(txdata&0x80)MOSI_ON();elseMOSI_OFF();SCLK_ON();if (MISO_IN)rxdata |= 0x01;elserxdata &= 0x01;SCLK_OFF();txdata = txdata1; return rxdata;/-CC2520寄存器读取函数-uint8 CC2520_ReadReg(uint8 addr)uint16 value;CSN_OFF();SPI_Write(addr|REG_READ);value = SPI_Read();CSN_ON();return value;/-CC2520寄存器写入函数-void CC252

34、0_WriteReg(uint8 addr, uint8 value)CSN_OFF();SPI_Write(addr|REG_WRITE);SPI_Write(value);CSN_ON();/-CC2520 RAM 读取函数-uint8 CC2520_ReadRAM(uint8 addrH,uint8 addrL)uint8 value;CSN_OFF();SPI_Write(addrH|MEM_READ);SPI_Write(addrL);value = SPI_Read();CSN_ON();return value;/-CC2520 RAM 写入函数-void CC2520_Writ

35、eRAM(uint8 addrH,uint8 addrL, uint8 value)CSN_OFF();SPI_Write(addrH|MEM_WRITE);SPI_Write(addrL);SPI_Write(value);CSN_ON();/-CC2520 RXFIFIO 读取函数-void CC2520_ReadRXFIFO(void)uint8 i;CSN_OFF();SPI_Write(RXFIFO_READ);CC2520_PSDU0 = SPI_Read();for(i=0;iCC2520_PSDU0;i+)CC2520_PSDU1+i = SPI_Read();CSN_ON()

36、;CC2520_Command(CMD_SFLUSHRX);/-CC2520 TXFIFIO 写入函数-void CC2520_WriteTXFIFO(void)uint8 i;CC2520_Command(CMD_SFLUSHTX);CSN_OFF();SPI_Write(TXFIFO_WRITE);SPI_Write(CC2520_PSDU0);for(i=0;iCC2520_PSDU0;i+)SPI_Write(CC2520_PSDU1+i);CSN_ON();/-CC2520命令函数-void CC2520_Command(uint8 cmd)CSN_OFF();SPI_Write(c

37、md);CSN_ON();/-CC2520 设置接收函数-void CC2520_SetRxMode(void)CC2520_Command(CMD_SRFOFF);CC2520_Command(CMD_SRXON);/-CC2520 判断接收函数-uint8 CC2520_RxPacket(void) if(!GPIO0_IN)&(GPIO1_IN)return TRUE;return FALSE;/-CC2520 发送函数-void CC2520_TxPacket(void)CC2520_Command(CMD_SRFOFF);CC2520_Command(CMD_STXON);while(!GPIO0_IN);while(GPIO0_IN);/-led端口设置-void LED_IO_set(void) P8DIR |= BIT0; P5DIR |= BIT7;/-RF2520端口设置-void RF2520_IO_set(void) P2DIR |= BIT4+BIT5; P3DIR