郭天祥十天学会msp430单片机配套所有例程可修改

//******************************************************************************
//  MSP-FET430P140 Demo - ADC12 Sample A0 Set P3.4 if A0 > 0.5*AVcc
//
//  Description: A single sample is made on A0 with reference to AVcc.
//  Software sets ADC10SC to start sample and conversion - ADC12SC
//  automatically cleared at EOC. ADC12 internal oscillator times sample （16x）
//  and conversion. In Mainloop MSP430 waits in LPM0 to save power until ADC12
//  conversion complete ADC12_ISR will force exit from LPM0 in Mainloop on
//  reti. If A0 > 0.5*AVcc P3.4 set else reset.
//
//                MSP430F149
//             -----------------
//         /||              XIN|-
//          | |                 |
//          --|RST          XOUT|-
//            |                 |
//      Vin-->|P6.0/A0      P3.4|--> LED
//
//  Dasheng
//  LiTian Electronic Inc.
//  Feb 2008
//  Built with IAR embedded Workbench Version: 3.42A
//******************************************************************************

#include  
#include  “BoardConfig.h“


void main（void）
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  BoardConfig（0xb8）;
  ADC12CTL0 = SHT0_2 + ADC12ON;             // Set sampling time turn on ADC12
  ADC12CTL1 = SHP;                          // Use sampling timer
  ADC12IE = 0x01;                           // Enable interrupt
  ADC12CTL0 |= ENC;                         // Conversion enabled
  P6SEL |= 0x01;                            // P6.0 ADC option select
  P3DIR |= BIT4;                            // P3.4 output

  for （;;）
  {
    ADC12CTL0 |= ADC12SC;                   // Sampling open
    _BIS_SR（CPUOFF + GIE）;                  // LPM0 ADC12_ISR will force exit
  }
}

// ADC12 interrupt service routine
#pragma vector=ADC_VECTOR
__interrupt void ADC12_ISR （void）
{
    if （ADC12MEM0 < 0x7FF）
      P3OUT &= ~BIT4;                       // Clear P3.4 LED off
    else
      P3OUT |= BIT4;                        // Set P3.4 LED on
    _BIC_SR_IRQ（CPUOFF）;                    // Clear CPUOFF bit from 0（SR）
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       2069  2008-03-27 10:48  LT-1B ProgramsADCA1A1.dep

     文件      12489  2008-03-19 16:00  LT-1B ProgramsADCA1A1.ewd

     文件      44198  2006-12-06 10:16  LT-1B ProgramsADCA1A1.ewp

     文件        156  2008-03-19 16:00  LT-1B ProgramsADCA1A1.eww

     文件        690  2008-03-04 21:55  LT-1B ProgramsADCA1BoardConfig.h

     文件      14869  2008-03-19 23:11  LT-1B ProgramsADCA1DebugExeA1.d43

     文件        144  2008-03-27 10:41  LT-1B ProgramsADCA1DebugObjA1.pbd

     文件       7205  2008-03-19 23:11  LT-1B ProgramsADCA1DebugObjmain.r43

     文件       2121  2008-03-19 23:11  LT-1B ProgramsADCA1main.c

     文件       2452  2008-03-27 10:41  LT-1B ProgramsADCA1settingsA1.cspy.bat

     文件         63  2008-03-27 10:48  LT-1B ProgramsADCA1settingsA1.dbgdt

     文件        610  2008-03-27 10:48  LT-1B ProgramsADCA1settingsA1.dni

     文件       2624  2008-03-27 10:48  LT-1B ProgramsADCA1settingsA1.wsdt

     文件       2064  2008-03-19 23:12  LT-1B ProgramsADCA2A2.dep

     文件      12489  2008-03-19 16:01  LT-1B ProgramsADCA2A2.ewd

     文件      44198  2006-12-06 10:16  LT-1B ProgramsADCA2A2.ewp

     文件        156  2008-03-19 16:01  LT-1B ProgramsADCA2A2.eww

     文件        690  2008-03-04 21:55  LT-1B ProgramsADCA2BoardConfig.h

     文件      14664  2008-03-19 23:12  LT-1B ProgramsADCA2DebugExeA2.d43

     文件        125  2008-03-19 23:11  LT-1B ProgramsADCA2DebugObjA2.pbd

     文件       7171  2008-03-19 23:12  LT-1B ProgramsADCA2DebugObjmain.r43

     文件       1804  2008-03-19 23:12  LT-1B ProgramsADCA2main.c

     文件       2452  2008-03-19 23:11  LT-1B ProgramsADCA2settingsA2.cspy.bat

     文件         63  2008-03-19 23:12  LT-1B ProgramsADCA2settingsA2.dbgdt

     文件        610  2008-03-19 23:12  LT-1B ProgramsADCA2settingsA2.dni

     文件       2615  2008-03-19 23:12  LT-1B ProgramsADCA2settingsA2.wsdt

     文件       2064  2008-03-19 23:14  LT-1B ProgramsADCA3A3.dep

     文件      12489  2008-03-19 16:03  LT-1B ProgramsADCA3A3.ewd

     文件      44198  2006-12-06 10:16  LT-1B ProgramsADCA3A3.ewp

     文件        156  2008-03-19 16:03  LT-1B ProgramsADCA3A3.eww

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