基于msp430g2553单片机ADC测量外部直流电压

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1、#include#defineucharunsignedchar#defineuintunsignedint#defineLCD_CON_DIRP2DIR#defineLCD_CON_INP2IN#defineLCD_CON_OUTP2OUT#defineLCD_RSBIT0//p2.5接51p2.5#defineLCD_RWBIT1//p2.0接51p2.6#defineLCD_ENBIT2//p2.1接51p2.7#defineLCD_DATA_DIRP1DIR#defineLCD_DATA_INP1IN#defineLCD_DATA_OU

2、TP1OUT#defineA1000#defineB100#defineX10voidInitOsc(void);voidInitLCD(void);voidwrite_command(ucharcommand);voidwrite_data(uchardata);voidDisplay_ZFC(uchar*s);voidLCD_Set_xy(ucharx,uchary);voidTrans_val(uintHex_Val);voidDisplay_Volte(uintHex_Val);voidMeasure_Volte(void);ucharnum[]={"0123456

3、789.v"};ucharvolte[]={"Volt:"};uintindex=0;inti;unsignedlongsum=0;uintHex_Val;#defineNum_of_Results32uintresults[Num_of_Results];//保存ADC转换结果的数组uintaverage;/****************************************************************************ADC初始化****************************************************

4、*************************/voidADC_Init(void){ADC10CTL0=ADC10SHT_2+ADC10ON+ADC10IE;//ADC10ON,interruptenabledADC10CTL1=INCH_1;//inputA1ADC10AE0

5、=0x02;//二次采集}/****************************************************************************DCO时钟初始化设为1MHz*******************************************

6、**********************************/voidDCO_Init(void){if(CALBC1_1MHZ==0xFF

7、

8、CALDCO_1MHZ==0xFF){while(1);}BCSCTL1=CALBC1_1MHZ;DCOCTL=CALDCO_1MHZ;BCSCTL2=SELM_0+DIVM_0;}/****************************************************************************向12864发送字节************************************

9、*****************************************/voidSendByte(ucharZdata){uinti;for(i=0;i<8;i++){if((Zdata<

10、=LCD_RW;//clk始终信号为高}else{LCD_CON_OUT&=~LCD_RW;//clk始终信号为低}LCD_CON_OUT&=~LCD_EN;LCD_CON_OUT

11、=LCD_EN;}}/******************************************************************

12、**********向12864写命令*****************************************************************************/voidwrite_command(ucharcommand){LCD_CON_OUT

13、=LCD_RS;SendByte(0xF8);SendByte(command&0xF0);SendByte((command<<4)&0xF0);_delay_cycles(200);}/************************