//文件名:main.c
//版本: 1.0
//描述:MC430F14開(kāi)發(fā)板的主程序，實(shí)現(xiàn)讀單路單次A7然后進(jìn)行數(shù)值顯示。
//編程環(huán)境:IAR WE430 3.40A
//編寫(xiě): www.microcontrol.cn DC
//時(shí)期: 2006.8.26.
# include <msp430x14x.h>
# include "f14demo_1.h"
//****************************************************
//定義區(qū)
unsigned int value;
unsigned char ADVAL[5]={'x','x','x','x','\0'};
unsigned char number_tab[]={'0','1','2','3','4','5','6','7','8','9'};
//****************************************************
//說(shuō)明:實(shí)驗(yàn)標(biāo)題1,應(yīng)用單實(shí)形式發(fā)送.
void send_title() //標(biāo)題顯示
{ //sendCMD(DDRAM_0); //DDRAM
sendCMD(off_cursor); //關(guān)光標(biāo)
sendCMD(LCD_L21);
display(LCD_L21,0xBD,0xE1); //結(jié)
display(LCD_L22,0xB9,0xFB); //果
sendDAT('A'); sendDAT('D'); sendDAT('7'); sendDAT('=');
}
//****************************************************
//說(shuō)明:單片機(jī)初始化
void init(void)
{ initlcm(); //LCD初始化
char_string (title,LCD_L11); //發(fā)送本實(shí)驗(yàn)標(biāo)題1
send_title(); //發(fā)送本實(shí)驗(yàn)標(biāo)題2
sendCMD(off_cursor); //關(guān)光標(biāo)
//ADC12初始化----------------------
//單通道,單次采樣模式
P6SEL |= 0x80; //使能A/D通道 A7
ADC12CTL0 = ADC12ON + SHT0_2; //開(kāi)ADC12內(nèi)核和設(shè)置SHIT0=2(N=4)
ADC12CTL1 |= SHP; //SAMPCON信號(hào)選擇為采樣定時(shí)器輸出
ADC12CTL1 |= CSTARTADD_7; //定義單次轉(zhuǎn)換地址
ADC12MCTL7 |= INCH_7;
//ADC12MCTL0 = SREF_2; // 使用外部參考電壓 Vr+ = VeREF+
ADC12CTL0 |= ENC; //ADC轉(zhuǎn)換允許
//Timer_A初始化--------------------
P1DIR = 0x02;
CCR0 = 1638-1;
CCTL0 = CCIE;
TACTL = TASSEL_1+MC_1; //timerA CLK=ACLK,增計(jì)數(shù)模式
_EINT(); //開(kāi)總中斷
}
//****************************************************
//說(shuō)明:數(shù)值轉(zhuǎn)換
void conv(unsigned int intdata, unsigned char *pc)
{ unsigned int a,b,c;
pc[0]=number_tab[intdata/1000] ;
a=intdata%1000 ;
pc[1]=number_tab[a/100] ;
b=a%100 ;
pc[2]=number_tab[b/10] ;
c=b%10;
pc[3]=number_tab[c/1] ;
}
//****************************************************
//TimerA0中斷服務(wù)程序
#pragma vector=TIMERA0_VECTOR
__interrupt void Timer_a(void)
{
LPM0_EXIT;
}
//----------------------------------------------------
void main(void)
{ WDTCTL=WDTPW+WDTHOLD; //停止WDT
init();
LPM3;
while(1)
{ADC12CTL0 |= ADC12SC; // 開(kāi)始轉(zhuǎn)換
while((ADC12IFG & BIT7)==0);
_NOP();
P1OUT ^= BIT1; //反轉(zhuǎn) P1.1
value=ADC12MEM7; // 讀取結(jié)果
conv(value,ADVAL); //數(shù)據(jù)轉(zhuǎn)換調(diào)用
char_string (ADVAL,LCD_L25); //發(fā)送本實(shí)驗(yàn)標(biāo)題1
LPM3;
}
}
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66821730(技術(shù)支持)
