main.c文件：
#include "71x_lib.h"
/* Define the RTC prescaler 0x8000 to have 1 second basic clock */
#define RTC_Prescaler 32768
int main (void)
{
RTC_ITConfig(RTC_GIT | RTC_SIT | RTC_AIT, DISABLE ); // Disable Second and Alarm Interrupt
RTC_FlagClear ( RTC_OWIR );
RTC_FlagClear ( RTC_AIR );
RTC_FlagClear ( RTC_SIR );
RTC_FlagClear ( RTC_GIR ); // Clear Pending Flags
RTC_PrescalerConfig ( RTC_Prescaler ); // Configure RTC prescaler
RTC_CounterConfig (0x00); // RTC_ClearCounter();
RTC_AlarmConfig(RTC_CounterValue() + 20);
RTC_ITConfig(RTC_GIT | RTC_SIT | RTC_AIT, ENABLE ); // Enable Second and Alarm Interrupt
EIC_IRQChannelConfig( RTC_IRQChannel, ENABLE ); // Enable RTC IRQ channel
EIC_IRQChannelPriorityConfig( RTC_IRQChannel, 1);
EIC_IRQConfig( ENABLE );
GPIO_Config (GPIO0, 0x2C, GPIO_OUT_PP); // Configure Port 0 pins
GPIO0->PD = 0x0000;
while (1);
}
71x_it.c文件中的
void RTC_IRQHandler(void)
{
#ifdef _RTC
if ( RTC_FlagStatus ( RTC_SIR ) == SET ) {
RTC_FlagClear ( RTC_SIR ); // Clear the SIR & GIR RTC flags
GPIO_BitWrite(GPIO0, 2, ~GPIO_BitRead(GPIO0, 2));
}
if ( RTC_FlagStatus ( RTC_AIR ) == SET ) {
RTC_FlagClear ( RTC_AIR ); // Clear the SIR & GIR RTC flags
RTC_AlarmConfig(RTC_CounterValue() + 20);
GPIO_BitWrite(GPIO0, 3, ~GPIO_BitRead(GPIO0, 3));
}
RTC_FlagClear ( RTC_GIR );
#endif
}
71x_conf.h文件
#define RCCU_Main_Osc 4000000
/* Comment the lines below corresponding to unwanted peripherals */
#define _EIC
#define _GPIO
#define _GPIO0
/* #define _GPIO1 */
/* #define _GPIO2 */
#define _RTC
你可以对照这个代码比较一下，判别你的问题在哪里。
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