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/**
* main.c */ #include #include #include "driverlib/sysctl.h" #include "inc/hw_types.h" #include "inc/hw_memmap.h" #include "driverlib/sysctl.h" #include "driverlib/gpio.h" #include "inc/hw_ints.h" #include "driverlib/interrupt.h" #include "driverlib/timer.h" #include "driverlib/pin_map.h" uint32_t ui32SysClkFreq; #define D2 GPIO_PIN_0 #define D1 GPIO_PIN_1 int Flag=0; float ulPeriod; char result; void Timer1AIntHandler(void)[ unsigned long ulstatus; ulstatus = TimerIntStatus(TIMER1_BASE, TIMER_CAPA_EVENT); TimerIntClear(TIMER1_BASE, ulstatus); result=TimerValueGet(TIMER1_BASE, TIMER_A); if(result==0)[ GPIOPinWrite(GPIO_PORTN_BASE, D2|D1, 3); ] ] void main(void) [ ui32SysClkFreq=SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480), 120000000); SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);//Turn on LED GPIOPinTypeGPIOOutput(GPIO_PORTN_BASE, D2|D1); SysCtlDelay(10); GPIOPinConfigure(GPIO_PD2_T1CCP0); GPIOPinTypeTimer(GPIO_PORTD_BASE,GPIO_PIN_2); GPIOPadConfigSet(GPIO_PORTD_BASE,GPIO_PIN_2, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU); TimerConfigure(TIMER1_BASE, TIMER_CFG_SPLIT_PAIR | TIMER_CFG_A_CAP_TIME_UP); TimerControlEvent(TIMER1_BASE, TIMER_A, TIMER_EVENT_POS_EDGE); TimerMatchSet(TIMER1_BASE, TIMER_A, 0x8FFF); TimerIntRegister(TIMER1_BASE, TIMER_A, Timer1AIntHandler); IntMasterEnable(); TimerIntEnable(TIMER1_BASE, TIMER_CAPA_MATCH); IntEnable(INT_TIMER1A); TimerEnable(TIMER1_BASE, TIMER_A); while(1)[ ] ] |
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void Timer1AIntHandler(void)[unsigned long ulstatus;ulstatus = TimerIntStatus(TIMER1_BASE, TIMER_CAPA_EVENT);TimerIntClear(TIMER1_BASE, ulstatus);result=TimerValueGet(TIMER1_BASE, TIMER_A);if(result==0)[GPIOPinWrite(GPIO_PORTN_BASE, D2|D1, 3);]]void main(void)[ui32SysClkFreq=SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |SYSCTL_OSC_MAIN |SYSCTL_USE_PLL |SYSCTL_CFG_VCO_480), 120000000);SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);//Turn on LEDGPIOPinTypeGPIOOutput(GPIO_PORTN_BASE, D2|D1);SysCtlDelay(10);GPIOPinConfigure(GPIO_PD2_T1CCP0);GPIOPinTypeTimer(GPIO_PORTD_BASE,GPIO_PIN_2);GPIOPadConfigSet(GPIO_PORTD_BASE,GPIO_PIN_2, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);TimerConfigure(TIMER1_BASE, TIMER_CFG_SPLIT_PAIR | TIMER_CFG_A_CAP_TIME_UP);TimerControlEvent(TIMER1_BASE, TIMER_A, TIMER_EVENT_POS_EDGE);TimerMatchSet(TIMER1_BASE, TIMER_A, 0x8FFF);TimerIntRegister(TIMER1_BASE, TIMER_A, Timer1AIntHandler);IntMasterEnable();TimerIntEnable(TIMER1_BASE, TIMER_CAPA_MATCH);IntEnable(INT_TIMER1A);TimerEnable(TIMER1_BASE, TIMER_A);while(1)[]]这两行操作的中断标志是不一样的吧。进入FaultISR(void)函数,首先怀疑是硬件配置的问题。 |
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