TI中文支持网为什么我进行在线调试的时候，在Register栏中查看MEM0,MEM1,MEM2,MEM3都是0000，这说明AD没有采样成功而且采样的值也没有写入MEMX寄存器吗？我该怎么解决，求告知，谢谢！！下面是我的程序：
#include<msp430.h>
#define Num_of_Results 32
#define ulong unsigned long
#define uint unsigned int#define uchar unsigned char
ulong caltmp[4];
static uint results[Num_of_Results]; //保存ADC转换结果的数组
uint i;
/********************************************
函数名称：Init_ADC
功 能：初始化ADC
参 数：无
返回值 ：无
********************************************/
void Init_ADC(void)
{
P6SEL |= 0x0f; // 使能ADC通道
ADC12CTL0 = ADC12ON+SHT0_15+MSC; // 打开ADC，设置采样时间
ADC12CTL1 = SHP+CONSEQ_3+CSTARTADD2; // 使用采样定时器，脉冲模式+单通道多次转换
ADC12MCTL0=INCH_0;
ADC12MCTL1=INCH_1;
ADC12MCTL2=INCH_2;
ADC12MCTL3=INCH_3+EOS; //以EOS结束此次转换
ADC12IE = 0x0f; // 使能ADC中断
//ADC12IV=ADC12IV_ADC12IFG3;
ADC12CTL0 |= ENC; // 使能转换
ADC12CTL0 |= ADC12SC; // 开始转换
// _BIS_SR(LPM0_bits + GIE);
for(i=0;i<50;i++)
_NOP();
_EINT();
//_BIS_SR(LPM0_bits + GIE);
}
函数名称：ADC12ISR
功 能：ADC中断服务函数，在这里用多次平均的
计算P6.0口的模拟电压数值
参 数：无返回值 ：无
********************************************/
#pragma vector=ADC_VECTOR
__interrupt void ADC12ISR(void)
{
//while((ADC12CTL1&0X01)==1); caltmp[0]=ADC12MEM0;
caltmp[1]=ADC12MEM1;
caltmp[2]=ADC12MEM2;
caltmp[3]=ADC12MEM3;
}
/******************************************************************************************************************/
主程序
#include <msp430.h>
#include"AD_BAT.c"
#define uint unsigned int#define uchar unsigned char
int main( void )
{
// Stop watchdog timer to prevent time out reset
WDTCTL = WDTPW + WDTHOLD;
BCSCTL1 &= ~XT2OFF; //打开XT2高频晶体振荡器
uchar i,j;
do
{
IFG1 &= ~OFIFG; //清除晶振失败标志
for (i = 0xFF; i > 0; i–); //等待8MHz晶体起振
}
while ((IFG1 & OFIFG)); //晶振失效标志仍然存在？（判断晶振是否起振）
BCSCTL2 |= SELM_2 + SELS; //MCLK和SMCLK选择高频晶振
TACTL |= TASSEL_2 + ID_3; //计数时钟选择SMLK=8MHz，1/8分频后为1MHz
//_EINT();
Init_ADC();
for(j=0;j<100;j++)
_NOP();
return 0;
}
gaoyang9992006：
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//******************************************************************************
//MSP-FET430P140 Demo - ADC12, Sequence of Conversions (non-repeated)
//
//Description: This example shows how to perform A/D conversions on a sequence
//of channels. A single sequence of conversions is performed - one conversion
//each on channels A0, A1, A2, and A3. Each conversion uses AVcc and AVss for
//the references. The conversion results are stored in ADC12MEM0, ADC12MEM1,
//ADC12MEM2, and ADC12MEM3 respectively and are moved to 'results[]' upon
//completion of the sequence. Test by applying voltages to pins A0, A1, A2,
//and A3, then setting and running to a break point at the "_BIC..."
//instruction in the ISR. To view the conversion results, open a watch window
//in debugger and view 'results' or view ADC12MEM0, ADC12MEM1, ADC12MEM2, and
//ADC12MEM3 in an ADC12 SFR window.
//This can run even in LPM4 mode as ADC has its own clock
//Note that a sequence has no restrictions on which channels are converted.
//For example, a valid sequence could be A0, A3, A2, A4, A2, A1, A0, and A7.
//See the MSP430x1xx User's Guide for instructions on using the ADC12.
//
//
//MSP430F149
//-----------------
//||
//Vin0 -->|P6.0/A0|
//Vin1 -->|P6.1/A1|
//Vin2 -->|P6.2/A2|
//Vin3 -->|P6.3/A3|
//||
//
//
//M. Mitchell
//Texas Instruments Inc.
//Feb 2005
//Built with CCE Version: 3.2.0 and IAR Embedded Workbench Version: 3.21A
//******************************************************************************#include <msp430.h>static unsigned int results[4];// Needs to be global in this example// Otherwise, the compiler removes it// because it is not used for anything.int main(void)
{WDTCTL = WDTPW+WDTHOLD;// Stop watchdog timerP6SEL = 0x0F;// Enable A/D channel inputsADC12CTL0 = ADC12ON+MSC+SHT0_2;// Turn on ADC12, set sampling timeADC12CTL1 = SHP+CONSEQ_1;// Use sampling timer, single sequenceADC12MCTL0 = INCH_0;// ref+=AVcc, channel = A0ADC12MCTL1 = INCH_1;// ref+=AVcc, channel = A1ADC12MCTL2 = INCH_2;// ref+=AVcc, channel = A2ADC12MCTL3 = INCH_3+EOS;// ref+=AVcc, channel = A3, end seq.ADC12IE = 0x08;// Enable ADC12IFG.3ADC12CTL0 |= ENC;// Enable conversionswhile(1){ADC12CTL0 |= ADC12SC;// Start conversion__bis_SR_register(LPM0_bits + GIE);// Enter LPM0, Enable interrupts}
}#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=ADC12_VECTOR
__interrupt void ADC12ISR (void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(ADC12_VECTOR))) ADC12ISR (void)
#else
#error Compiler not supported!
#endif
{results[0] = ADC12MEM0;// Move results, IFG is clearedresults[1] = ADC12MEM1;// Move results, IFG is clearedresults[2] = ADC12MEM2;// Move results, IFG is clearedresults[3] = ADC12MEM3;// Move results, IFG is cleared__bic_SR_register_on_exit(LPM0_bits);// Clear LPM0, SET BREAKPOINT HERE
}给你个参考，跟你的非常类似了，你看看你的是咋回事。你用了中断，但是你中断的名字好像定义的都不大对
user5767411：
回复 gaoyang9992006:
您好，请问为什么我编译这个程序时会有一个警告，就是results 定义了但未被使用
user5767411：
回复 gaoyang9992006:
您好，请问为什么我编译这个程序时会有一个警告，就是results 定义了但未被使用
