MSP432 开发环境

安装CCS9.2,SDK包。
https://e2echina.ti.com/question_answer/microcontrollers/msp430/f/55/t/179621

SDK开发查找函数：
http://dev.ti.com/tirex/content/simplelink_msp432_sdk_1_30_00_40/docs/driverlib/msp432p4xx/html/driverlib_html/modules.html

开ADC 和开1s定时器A中断：

// *          --|RST         P5.5  |<--- A0 (Analog Input)
// *     |                     P1.0|-->LED


/* DriverLib Includes */
#include <ti/devices/msp432p4xx/driverlib/driverlib.h>

/* Standard Includes */
#include <stdint.h>
#include <stdbool.h>

/* Statics */
static volatile uint16_t curADCResult;
static volatile float normalizedADCRes;

/* Timer_A UpMode Configuration Parameter */
const Timer_A_UpModeConfig upConfig = {
        TIMER_A_CLOCKSOURCE_ACLK,          //aclk
        TIMER_A_CLOCKSOURCE_DIVIDER_1,        //32768hz
        32768,                        // 1 s clock
        TIMER_A_TAIE_INTERRUPT_DISABLE,         // Disable Timer interrupt
        TIMER_A_CCIE_CCR0_INTERRUPT_ENABLE,    // Enable CCR0 interrupt
        TIMER_A_DO_CLEAR                        // Clear value
        };

int main(void)
{
    /* Halting the Watchdog  */
    MAP_WDT_A_holdTimer();

    /* Initializing Variables */
    curADCResult = 0;

    /* Setting Flash wait state */
    MAP_FlashCtl_setWaitState(FLASH_BANK0, 1);
    MAP_FlashCtl_setWaitState(FLASH_BANK1, 1);

    /* Setting DCO to 48MHz  */
    MAP_PCM_setPowerState(PCM_AM_LDO_VCORE1);
    MAP_CS_setDCOCenteredFrequency(CS_DCO_FREQUENCY_48);

    /* Enabling the FPU for floating point operation */
    MAP_FPU_enableModule();
    MAP_FPU_enableLazyStacking();

    //![Single Sample Mode Configure]
    /* Initializing ADC (MCLK/1/4) */
    MAP_ADC14_enableModule();
    MAP_ADC14_initModule(ADC_CLOCKSOURCE_MCLK, ADC_PREDIVIDER_1, ADC_DIVIDER_4,
                         0);

    /* Configuring GPIOs (5.5 A0) */
    MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P5, GPIO_PIN5,
    GPIO_TERTIARY_MODULE_FUNCTION);

    /* Configuring ADC Memory */
    MAP_ADC14_configureSingleSampleMode(ADC_MEM0, true);
    MAP_ADC14_configureConversionMemory(ADC_MEM0, ADC_VREFPOS_AVCC_VREFNEG_VSS,
    ADC_INPUT_A0,
                                        false);

    /* Configuring Sample Timer */
    MAP_ADC14_enableSampleTimer(ADC_MANUAL_ITERATION);

    /* Enabling/Toggling Conversion */
    MAP_ADC14_enableConversion();
    MAP_ADC14_toggleConversionTrigger();
    //![Single Sample Mode Configure]

    /* Enabling interrupts */
    MAP_ADC14_enableInterrupt(ADC_INT0);
    MAP_Interrupt_enableInterrupt(INT_ADC14);

    /* Configuring Timer_A1 for Up Mode */
    MAP_Timer_A_configureUpMode(TIMER_A1_BASE, &upConfig);

    /* Enabling interrupts and starting the timer */
    MAP_Interrupt_enableSleepOnIsrExit();
    MAP_Interrupt_enableInterrupt(INT_TA1_0);
    MAP_Timer_A_startCounter(TIMER_A1_BASE, TIMER_A_UP_MODE);

    /* Configuring P1.0 as output */
    MAP_GPIO_setAsOutputPin(GPIO_PORT_P1, GPIO_PIN0);
    MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_PIN0);

    /* Enabling MASTER interrupts */
    MAP_Interrupt_enableMaster();

    while (1)
    {
        //MAP_PCM_gotoLPM0();
    }

}

void ADC14_IRQHandler(void)
{
    uint64_t status = MAP_ADC14_getEnabledInterruptStatus();
    MAP_ADC14_clearInterruptFlag(status);

    if (ADC_INT0 & status)
    {
        curADCResult = MAP_ADC14_getResult(ADC_MEM0);
        normalizedADCRes = (curADCResult * 3.3) / 16384; //normalizedADCRes就是最后电压

        MAP_ADC14_toggleConversionTrigger();
    }
}
void TA1_0_IRQHandler(void)
{
    MAP_GPIO_toggleOutputOnPin(GPIO_PORT_P1, GPIO_PIN0);
    MAP_Timer_A_clearCaptureCompareInterrupt(TIMER_A1_BASE,TIMER_A_CAPTURECOMPARE_REGISTER_0);
}