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rtcalarm.c
Package: arm_exam.rar　[view]
Upload User: mhstny
Upload Date: 2022-08-05
Package Size: 793k
Code Size: 3k
Category:

ARM-PowerPC-ColdFire-MIPS

Development Platform:

Unix_Linux

rtcalarm.c：Code Content
  1. #include "2410lib.h"
  2. #include "2410addr.h"
  3. #include "def.h"
  5. char *week[8] = { "","SUN","MON", "TUES", "WED", "THURS","FRI", "SAT" } ;
  6. int year,month,date,weekday,hour,min,sec;
  7. int enable_beep = 1;
  8. extern void Buzzer_PWM_Run(void);
  10. void __irq IsrAlarm(void);
  11. void __irq Tick_Isr(void);
  13. //设置RTC ALARM 时间
  14. void setRTCalm(U8 almyear,U8 almmon,U8 almdate,
  15.                U8 almhour,U8 almmin,U8 almsec)//年、月、日、时、分、秒
  16. {   rRTCCON=0x0001;
  18. rALMYEAR = almyear;
  19. rALMMON  = almmon;
  20. rALMDATE = almdate;
  21. rALMHOUR = almhour;
  22. rALMMIN  = almmin;
  23. rALMSEC  = almsec;
  25. rRTCCON = 0; //disable RTC write
  26. }
  28. //置时钟定时时间
  29. void setRTCtime(U8 wRTCyear,U8 wRTCmon,U8 wRTCdate,
  30. U8 wRTCday,U8 wRTChour,U8 wRTCmin,U8 wRTCsec)//年、月、日、星期、时、分、秒
  31. {
  32. rRTCCON=0x01;
  34. rBCDYEAR = wRTCyear;
  35. rBCDMON  = wRTCmon;
  36. rBCDDATE = wRTCdate;
  37. rBCDDAY  = wRTCday;
  38. rBCDHOUR = wRTChour;
  39. rBCDMIN  = wRTCmon;
  40. rBCDSEC  = wRTCsec;
  42.     rRTCCON = 0x00; //disable RTC write
  43. }
  44. //open rtc
  45. void OpenRtc(void)
  46. {
  47.     pISR_TICK=(unsigned)Tick_Isr;
  48.     rTICNT=0xFF;//Tick time interrupt enable;Tick time count value=127
  49.     EnableIrq(BIT_TICK);//open RTC TICK INTERRUPT
  50. }
  52. //close  rtc
  53. void CloseRtc(void)
  54. {
  55.     rTICNT &= ~(1<<7);
  56.     DisableIrq(BIT_TICK);
  58. }
  59. //open rtc alarm
  60. void OpenAlarm()
  61. {
  62. pISR_RTC = (unsigned)IsrAlarm;
  63. ClearPending(BIT_RTC);
  64. rRTCALM = (0x7f); //enable alarm
  65. EnableIrq(BIT_RTC);
  67. }
  69. //close  rtc alarm
  70. void CloseAlarm(void)
  71. {
  72. rRTCALM = 0; //disable alarm
  73. DisableIrq(BIT_RTC);
  74. }
  76. // get rtc
  77. void Get_Rtc(void)
  78. {
  79.         rRTCCON = 0x01; //RTC读写使能，选择BCD时钟、计数器，无复位，1/32768
  81.     if (rBCDYEAR == 0x99)    
  82.     year = 0x1999;
  83.     else    
  84.     year = 0x2000 + rBCDYEAR;
  85.     month=rBCDMON;
  86.     date=rBCDDATE;
  87.     weekday=rBCDDAY;
  88.     hour=rBCDHOUR;
  89.     min=rBCDMIN;
  90.     sec=rBCDSEC;
  91.    
  92.         rRTCCON = 0x0;    //RTC读写禁止，选择BCD时钟、计数器，无复位，1/32768
  93. }
  95. /****************************************************/
  96. void xmain(void)
  97. {
  98.     ChangeClockDivider(1,1);
  99.     ChangeMPllValue(0xa1,0x3,0x1);   
  100.     Port_Init();
  101.     Uart_Select(0);
  102.     Uart_Init(0,115200);
  103. Uart_Printf("the main is runningn");
  105. setRTCalm(06,04,15,1,5,1);//年、月、日、时、分、秒
  106. setRTCtime(06,04,15,2,1,4,29);//年、月、日、星期、时、分、秒
  107.    
  108. OpenAlarm();
  109. OpenRtc();
  112. while(1);
  113. //    Buzzer_PWM_Run();
  114. }
  116. void __irq IsrAlarm(void)
  117. {
  118.     ClearPending(BIT_RTC);
  119.     Uart_Printf("s3c244A RTCALM  oucer n");
  120.     Buzzer_PWM_Run();
  121. }
  124. void __irq Tick_Isr(void)
  125. {
  126. Get_Rtc();
  127. Uart_Printf("RTC TIME : %4x-%02x-%02x - %s - %02x:%02x:%02xn",year,month,date,week[weekday],hour,min,sec);
  128. ClearPending(BIT_TICK);
  130. }