DSP5509的RTC实验-第3篇

1. RTC实时时钟，不在过多介绍，本例程直接调用芯片支持库CSL的库函数，用起来比较简单

 main()
 {
     CSL_init();
     printf ("\nTESTING...\n");

     RTC_reset();    // Reset the registers
     RTC_config(&myConfig);   // Initialization
     RTC_getConfig(&Config);
     printf ("RTCSEC value is: %x\n",Config.rtcsec);
     printf ("RTCMIN value is: %x\n",Config.rtcmin);
     printf ("RTCHOUR value is: %x\n",Config.rtchour);
     printf ("RTCDAYW value is: %x\n",Config.rtcdayw);
     printf ("RTCDAYM value is: %x\n",Config.rtcdaym);
     printf ("RTCYEAR value is: %x\n",Config.rtcyear);        

     RTC_setTime(&myTime);
     RTC_getTime(&getTime);
     printf("Current RTC time is: %x:%x:%x\n",getTime.hour,getTime.minute,getTime.second);

     RTC_getDate(&getDate);
     printf("Current RTC date is: %x/%x/%x\tDay of week: %x\n",getDate.month,getDate.daym,getDate.year,getDate.dayw); 

     /* Set an alarm at the time specified by myAlarm */
     /* Alarm needs to be enabled to occur */
     RTC_setAlarm(&myAlarm);
     printf("Alarm time: %x : %x : %x\tDay of week: %x\n",
     RTC_FGET(RTCHOURA,HAR),RTC_FGET(RTCMINA,MAR),
     RTC_FGET(RTCSECA,SAR),RTC_FGET(RTCDAYW,DAR));

     RTC_start();    // start the RTC running
 }

2. 感觉和STM32的RTC差不多，比较简单，在本例程中有2个疑问，TMS320C5509和TMS320C5509A有和区别？printf函数打印是什么机制？实际运行的时候，发现程序卡在如下函数，怀疑是标准C库的底层没支持这个函数。

 printf ("RTCSEC value is: %x\n",Config.rtcsec);

3. 实际测试发现printf可以打印在CCS的console窗口，调试很方便。