msp430f149 使用ADC12进行定时单通道连续采样

刚刚学习msp430，对于一些实现运到了对我来说很奇怪的问题。

我想实现每隔一段时间后，ADC12在单通道连续采样情况下进行采样，取均值操作。

用了两种方法：

1.使用Timer进行定时，在定时一段时间后重复开启和关闭ADC12（可以运行，mainnousepmw.c）

2.采用ADC12的Timer进行控制的方法，即SHP=1的方法

问题：程序卡死在某个位置，由于没有调制器，无法定位是在哪边出了问题

下面是我的代码

#include "msp430x14x.h"
#include "Config.h"

float MEAN = 1.0;
float MAX = -1.0;
uchar IDX = 0;
uchar MAXIDX = 0;
uchar FINISH = 0;
uchar ADCBUSY = 1;
uint TEMP = 0;
uchar CNT = 0; // for test

void port_init(){
P6DIR |= 0xfe; // for test
P6OUT &= ~(0xfe);
}

void TIMERA_Init(void) //continue, to 0x007E create interrupt
{
TACTL |= TASSEL1 + TACLR + ID0 + ID1 + MC_1 + TAIE; //SMCLK / 8 as clock, up mode(to TACCR0), create interrupt
TACCR0 = 0xffff; // for test
}

//TIMERA interrupt, has interrupt type
#pragma vector=TIMERA1_VECTOR
__interrupt void Timer_A(void)
{
//????
switch(TAIV) //interrupt type
{
case 2: break;
case 4: break;
case 10: TACTL = 0x00; //close Timer A
ADC12CTL0 &= ~(ADC12SC + ENC);
ADCBUSY = 0;
break; //set the ADC to finish
}
}

void adc_init(){
P6SEL &= 0x01; //select P6.0 as the adc input
ADC12CTL0 |= ADC12ON + SHT0_15 + REF2_5V + REFON + MSC; //for test, add multiply sample and conversion
ADC12CTL1 |= ADC12SSEL1 + ADC12SSEL0 + CONSEQ_2 + SHP + CSTARTADD_0; //SMCLK as clock, single channel continue convert mode, ADC12MCTL0 = SREF0 + INCH_0 + EOS; //ref select, channel 0 select
ADC12IE |= 0x01; //interrupt allow
}

//ADC interrupt
#pragma vector=ADC_VECTOR
__interrupt void ADC12ISR(void)
{
switch(ADC12IV)
{
case ADC12IV_ADC12IFG0:
MEAN = MEAN + ADC12MEM0;
CNT = CNT + 1;
//P6OUT = ~(0x80);
break; case ADC12IV_ADC12OVIFG:
//P6OUT = ~(0x10);
break;
case ADC12IV_ADC12TOVIFG:
//P6OUT = ~(0x20);
break;
default:
break;
}
}

void main(){
WDT_Init();
Clock_Init();
port_init();
adc_init();
_EINT();

delay_ms(5000); // for test
while(1) {
while(!FINISH) {
delay_ms(500); // for test
CNT = 1;
MEAN = 0.0;
ADC12CTL0 |= ADC12SC + ENC; //Start conversion

//start the timer here
ADCBUSY = 1;
TIMERA_Init();// don't set the timer in running
//wait for the timer A interrupt to change the ADCBUSY
//meanwhile close the Timer A
while(ADCBUSY){};
MEAN = MEAN / CNT;
if (MEAN > MAX) {
MAX = MEAN;
MAXIDX = IDX;
}

//change the Q channel control
IDX = IDX + 1;

// for test 0x04
if (IDX == 0x04) {
FINISH = 1;
P1OUT = MAXIDX;
//P6OUT = ~(IDX << 1);
P6OUT &= ~(MAXIDX << 4);
break;
}

P6OUT = ~(IDX << 1);
}
//save power here
}
}

对于需要实现的功能是否有其他的解决方案，或者说上述两个方案的问题是否有解决的方法，不胜感激。

附件中是我写的方案1的代码，谢谢！

灰小子：

你用的什么开发软件？能调试定位死在哪段代码吗？