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MSP430G,用ADC10进行ADC采集,但是进不了ADC中断

Other Parts Discussed in Thread: MSP430G2231

各位大神,你好!

本来是一个刚接触MSP430G的菜鸟,现在我用ADC10进行ADC采集,但是进不了ADC中断,跪求指导,谢谢了!代码如下:

void main(void)
{
    long IntDeg=0;
    long temp=0;
 WDTCTL = WDTPW | WDTHOLD; // stop watchdog timer

 //配置时钟
 BCSCTL3 = LFXT1S_2;                                          //低高频选OLV,并作为ACLK时钟源
 BCSCTL2 = SELM_3 + DIVM_0;                             //MCLK时钟源选VLO(或LFXT1),MCLK不分频
 IFG1 &= ~OFIFG;                                                     //清时钟失效中断标志
 _BIS_SR(SCG0 + SCG1 + OSCOFF);                   //关DCO、SMCLK、LFXT1等

    BuzzerInit();
    //timer0_init();
    ADC10_init();

    while(1)
    {
        //LPM3;
        ADC10CTL0 |= ENC + ADC10SC;                     // Sampling and conversion start
        _EINT();
        //_bis_SR_register(CPUOFF + GIE);     // LPM0 with interrupts enabled
        //LPM3;
        //-----ADC转换完成中断唤醒CPU后才执行以下代码-----
        temp = ADC10MEM;          //读取AD采样值
        IntDeg= (temp*3.3)/1024;

        __no_operation();                       // SET BREAKPOINT HERE
    }
}

void ADC10_init(void)
{
  ADC10CTL0 &= ~ENC;

  P1SEL=0xFF;//将io口选择为AD输入
  P1DIR &= ~BIT1;
  ADC10AE0 |= BIT1;                         // P1.1 ADC option select

  //ADC10CTL0 = ADC10IE + ADC10ON + REFON + ADC10SHT_3 + SREF_1;
    //ADC10CTL1 = CONSEQ_0 + ADC10SSEL_1 + ADC10DIV_0 + SHS_0 + INCH_1;
  ADC10CTL0 = ADC10SR + ADC10ON + ADC10IE;                        //启动ADC,开中断
  ADC10CTL1 = INCH_0 + ADC10SSEL_1 + CONSEQ_0;               //ADC时钟为ACLK, 单通道单次模式

    ADC10CTL0 |= ENC;

}

#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR_HOOK(void)
{
    P1OUT^=BIT6;
  //_bic_SR_register_on_exit(LPM4_bits);
  //LPM3_EXIT;
}

无法进入这个中断ADC10_ISR_HOOK,求指导!

  • 您现在使用的是官方的Launchpad还是您的自制板子?具体是哪个型号?

    刚开始的话,建议您从官方例程开始

    以G2553为例,您可以在下面的链接获取例程

    dev.ti.com/.../node
  • 代码全是自己写的?建议下载MSP430ware,里面有丰富的G2系列的例子,也可在你选你的那个芯片主页找到例子。

    给你一包G2553的例子

    slac485j.zip

  • 板子是我自制的板子,MCU用的是MSP430G2231,奇怪的是我的板子在别人电脑上下载程序可以进入ADC10中断,在我电脑上升级就进不了中断!代码基本上都相同,唯一不同的就是别人使用的是IAR编译器,我用的是CCS!
    会不会是编译环境不同引起的?搞了两天了,ADC10配置确认了一遍又一遍,确实没有问题!
  • 单通道单次的话,请您参考下面的代码

    AVcc 为参考电压Ref,A1作为输入,当> 0.5*AVcc的时候点亮P1.0

    //******************************************************************************
    //  MSP430G2x33/G2x53 Demo - ADC10, Sample A1, AVcc Ref, Set P1.0 if > 0.5*AVcc
    //
    //  Description: A single sample is made on A1 with reference to AVcc.
    //  Software sets ADC10SC to start sample and conversion - ADC10SC
    //  automatically cleared at EOC. ADC10 internal oscillator times sample (16x)
    //  and conversion. In Mainloop MSP430 waits in LPM0 to save power until ADC10
    //  conversion complete, ADC10_ISR will force exit from LPM0 in Mainloop on
    //  reti. If A1 > 0.5*AVcc, P1.0 set, else reset.
    //
    //                MSP430G2x33/G2x53
    //             -----------------
    //         /|\|              XIN|-
    //          | |                 |
    //          --|RST          XOUT|-
    //            |                 |
    //        >---|P1.1/A1      P1.0|-->LED
    //
    //  D. Dang
    //  Texas Instruments Inc.
    //  December 2010
    //   Built with CCS Version 4.2.0 and IAR Embedded Workbench Version: 5.10
    //******************************************************************************
    #include <msp430.h>
    
    int main(void)
    {
      WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
      ADC10CTL0 = ADC10SHT_2 + ADC10ON + ADC10IE; // ADC10ON, interrupt enabled
      ADC10CTL1 = INCH_1;                       // input A1
      ADC10AE0 |= 0x02;                         // PA.1 ADC option select
      P1DIR |= 0x01;                            // Set P1.0 to output direction
    
      for (;;)
      {
        ADC10CTL0 |= ENC + ADC10SC;             // Sampling and conversion start
        __bis_SR_register(CPUOFF + GIE);        // LPM0, ADC10_ISR will force exit
        if (ADC10MEM < 0x1FF)
          P1OUT &= ~0x01;                       // Clear P1.0 LED off
        else
          P1OUT |= 0x01;                        // Set P1.0 LED on
      }
    }
    
    // ADC10 interrupt service routine
    #if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
    #pragma vector=ADC10_VECTOR
    __interrupt void ADC10_ISR(void)
    #elif defined(__GNUC__)
    void __attribute__ ((interrupt(ADC10_VECTOR))) ADC10_ISR (void)
    #else
    #error Compiler not supported!
    #endif
    {
      __bic_SR_register_on_exit(CPUOFF);        // Clear CPUOFF bit from 0(SR)
    }
    

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