TIVA LAUNCHPAD仿真器问题。

我查了好几天了。都是从例程里改出来的初始化方法。现在有个特点就是在线仿真是一次可以用一次会跑飞轮流循环。？

FaultISR一般是硬件层面的操作错误导致的。

楼主把代码贴出来一起看看吧。

void ADC0withDMA_init(void)
{
    unsigned int uIdx;
    for(uIdx = 0; uIdx < ADC_DSTBUF_SIZE; uIdx++)
    {
        g_ulAdcBuf[uIdx] = 0;
    }



    SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);//此处顺序必须不得更改。
    // Enable GPIO for ADC
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
    GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_3);// Enable pin PE3 for ADC AIN0
    GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_2);// Enable pin PE2 for ADC AIN1
    GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_1);// Enable pin PE1 for ADC AIN2
    GPIOPinTypeADC(GPIO_PORTD_BASE, GPIO_PIN_3);// Enable pin PD3 for ADC AIN4


    //ADCSequenceDisable(ADC0_BASE, 1);
    //SysCtlADCSpeedSet(SYSCTL_ADCSPEED_250KSPS);
    ADCSequenceConfigure(ADC0_BASE, 1, ADC_TRIGGER_TIMER, 0);
    ADCSequenceStepConfigure(ADC0_BASE, 1, 0, ADC_CTL_CH0);
    ADCSequenceStepConfigure(ADC0_BASE, 1, 1, ADC_CTL_CH1| ADC_CTL_IE );
    ADCSequenceStepConfigure(ADC0_BASE, 1, 2, ADC_CTL_CH2);
    ADCSequenceStepConfigure(ADC0_BASE, 1, 3, ADC_CTL_CH4| ADC_CTL_IE |ADC_CTL_END);
    //ADC0_CC_R=0x01;
    
    ADCSequenceOverflowClear(ADC0_BASE,1);//不知道为什么会触发overflow中断
    ADCIntClear(ADC0_BASE, 1);
    ADCIntEnableEx(ADC0_BASE,ADC_INT_DMA_SS1);
    ADCIntRegister(ADC0_BASE,1,ADC0_ISR);

    SysCtlPeripheralEnable(SYSCTL_PERIPH_UDMA);
    uDMAEnable();
    uDMAControlBaseSet(sDMAControlTable);
    uDMAChannelAttributeEnable(UDMA_CHANNEL_ADC1 | UDMA_PRI_SELECT,UDMA_ATTR_USEBURST|UDMA_ATTR_HIGH_PRIORITY);
    uDMAChannelControlSet(UDMA_CHANNEL_ADC1 | UDMA_PRI_SELECT, UDMA_SIZE_32 | UDMA_SRC_INC_NONE |UDMA_DST_INC_32 | UDMA_ARB_2);
    uDMAChannelTransferSet(UDMA_CHANNEL_ADC1 | UDMA_PRI_SELECT,UDMA_MODE_BASIC,(void *)(ADC0_BASE+ADC_O_SSFIFO0 - ADC_O_SSMUX0+ADC_O_SSMUX1),g_ulAdcBuf, ADC_DSTBUF_SIZE/2);
    uDMAChannelEnable(UDMA_CHANNEL_ADC1);

    ADCSequenceDMAEnable(ADC0_BASE,1);
    ADCSequenceEnable(ADC0_BASE, 1);
}

void TimerforAdc_init(void)
{
	SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
	while(!SysCtlPeripheralReady(SYSCTL_PERIPH_TIMER0));
	TimerConfigure(TIMER0_BASE, TIMER_CFG_SPLIT_PAIR|TIMER_CFG_A_PERIODIC_UP);
	TimerLoadSet(TIMER0_BASE, TIMER_A, 10000);//period
	//TimerPrescaleSet(TIMER0_BASE,TIMER_A,2);
	TimerControlTrigger(TIMER0_BASE, TIMER_A, true);//trigger ADC with TIMER
	TimerControlStall(TIMER0_BASE, TIMER_A, true);//调试时暂停计数（必要！）
	//SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
	//GPIOPinConfigure(GPIO_PB6_T0CCP0);
	//GPIOPinTypeTimer(GPIO_PORTB_BASE, GPIO_PIN_6);
	//TimerMatchSet(TIMER0_BASE, TIMER_A,TimerLoadGet(TIMER0_BASE, TIMER_A) / 3);
	TimerEnable(TIMER0_BASE, TIMER_A);
	//TimerConfigure(TIMER0_BASE, TIMER_CFG_PERIODIC_UP);
}

void Timerforscreen_init(void)
{
	SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);
	while(!SysCtlPeripheralReady(SYSCTL_PERIPH_TIMER1));
	//while(!SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1));
	TimerConfigure(TIMER1_BASE, TIMER_CFG_SPLIT_PAIR|TIMER_CFG_A_PERIODIC);
	TimerLoadSet(TIMER1_BASE, TIMER_A, 60000);//period
	TimerPrescaleSet(TIMER1_BASE,TIMER_A,255);
	//TimerControlStall(TIMER0_BASE, TIMER_B, true);//调试时暂停计数（必要！）


	unsigned long ulStatus;
	ulStatus = TimerIntStatus(TIMER1_BASE,true);
	TimerIntClear(TIMER1_BASE,ulStatus);
        TimerIntRegister(TIMER1_BASE,TIMER_A,Timer1A_ISR);
        TimerIntEnable(TIMER1_BASE,TIMER_TIMA_TIMEOUT);
        IntEnable(INT_TIMER1A);

	//SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
	//GPIOPinConfigure(GPIO_PB7_T0CCP1);
	//GPIOPinTypeTimer(GPIO_PORTB_BASE, GPIO_PIN_7);
	//TimerMatchSet(TIMER0_BASE, TIMER_B,TimerLoadGet(TIMER0_BASE, TIMER_B) / 3);

        //TimerIntClear(TIMER1_BASE,TIMER_TIMA_TIMEOUT);
	TimerEnable(TIMER1_BASE, TIMER_A);
}

主要就是这三个初始化嫌疑比较大。现在下载程序都要下载两遍才能用。