MSP430FR2353 AD多通道采集 现在采集通道8 和内部温度通道A12 只采集这两个通道求指点下，以下是我的配置读取参考官方例子，参考电压内部2.5V，不顺序采集AD ，只采集指定的通道AD的采集

/* --COPYRIGHT--,BSD_EX
 * Copyright (c) 2016, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *******************************************************************************
 *
 *                       MSP430 CODE EXAMPLE DISCLAIMER
 *
 * MSP430 code examples are self-contained low-level programs that typically
 * demonstrate a single peripheral function or device feature in a highly
 * concise manner. For this the code may rely on the device's power-on default
 * register values and settings such as the clock configuration and care must
 * be taken when combining code from several examples to avoid potential side
 * effects. Also see www.ti.com/grace for a GUI- and www.ti.com/msp430ware
 * for an API functional library-approach to peripheral configuration.
 *
 * --/COPYRIGHT--*/
//******************************************************************************
//  MSP430FR235x Demo - ADC, Sample A2/A1/A0, internal 2V Ref.
//
//  Description: This example works on Sequence-of-Channels Mode.
//  A2/A1/A0 is sampled 16ADCclks with reference to 2V.
//  Internal oscillator times sample (16x) and conversion(13x).
//  Inside ADC_ISR A2/A1/A0 sample value put into array ADC_Result[3].
//  ACLK = default REFO ~32768Hz, MCLK = SMCLK = default DCODIV ~1MHz.
//
//
//                MSP430FR2355
//             -----------------
//         /|\|                 |
//          | |                 |
//          --|RST              |
//            |                 |
//        >---|P1.2/A2          |
//        >---|P1.1/A1          |
//        >---|P1.0/A0          |
//
//
//   Cash Hao
//   Texas Instruments Inc.
//   November 2016
//   Built with IAR Embedded Workbench v6.50.0 & Code Composer Studio v6.2.0
//******************************************************************************
#include <msp430.h>

unsigned int ADC_Result[3];                                    // 12-bit ADC conversion result array
unsigned char i;

int main(void)
{
    WDTCTL = WDTPW | WDTHOLD;                                   // Stop WDT

    // Configure ADC A1~2 pins
    P1SEL0 |=  BIT1 + BIT2;
    P1SEL1 |=  BIT1 + BIT2;

    // Disable the GPIO power-on default high-impedance mode to activate
    // previously configured port settings
    PM5CTL0 &= ~LOCKLPM5;

    // Configure ADC
    ADCCTL0 |= ADCSHT_2 | ADCMSC | ADCON;                       // 16ADCclks, MSC, ADC ON
    ADCCTL1 |= ADCSHP | ADCCONSEQ_1 | ADCSSEL_1;                // ADC clock ACLK, sampling timer, s/w trig.,single sequence
    ADCCTL2 &= ~ADCRES;                                         // clear ADCRES in ADCCTL
    ADCCTL2 |= ADCRES_2;                                        // 12-bit conversion results
    ADCMCTL0 |= ADCINCH_2 | ADCSREF_1;                          // A0~2(EoS); Vref=2V
    ADCIE |= ADCIE0;                                            // Enable ADC conv complete interrupt

    // Configure reference
    PMMCTL0_H = PMMPW_H;                                        // Unlock the PMM registers
    PMMCTL2 |= INTREFEN | REFVSEL_1;                            // Enable internal 2V reference
    __delay_cycles(400);                                        // Delay for reference settling
    __no_operation();

    while(1)
    {
        i = 2;
        while(ADCCTL1 & ADCBUSY);                                // Wait if ADC core is active
        ADCCTL0 |= ADCENC | ADCSC;                               // Sampling and conversion start
        __bis_SR_register(LPM0_bits | GIE);                      // Enter LPM0 w/ interrupts
        __no_operation();                                        // Only for debug
        __delay_cycles(5000);
        __no_operation();
    }
}

// ADC interrupt service routine
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=ADC_VECTOR
__interrupt void ADC_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(ADC_VECTOR))) ADC_ISR (void)
#else
#error Compiler not supported!
#endif
{
    switch(__even_in_range(ADCIV,ADCIV_ADCIFG))
    {
        case ADCIV_NONE:
            break;
        case ADCIV_ADCOVIFG:
            break;
        case ADCIV_ADCTOVIFG:
            break;
        case ADCIV_ADCHIIFG:
            break;
        case ADCIV_ADCLOIFG:
            break;
        case ADCIV_ADCINIFG:
            break;
        case ADCIV_ADCIFG:
            ADC_Result[i] = ADCMEM0;
            if(i == 0)
            {
                __bic_SR_register_on_exit(LPM0_bits);              // Exist LPM0
            }
            else
            {
                i--;
            }
            break;
        default:
            break;
    }
}