Matthias
b769685b66
updated code files git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@132 9fe90eed-be63-e94b-8204-d34ff4c2ff93
166 lines
5.5 KiB
C
166 lines
5.5 KiB
C
/* ---------------------------------------------------------------------------
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* rtc.c - v0.1 (c) 2007 Micro-key bv
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* ---------------------------------------------------------------------------
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* Micro-key bv
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* Industrieweg 28, 9804 TG Noordhorn
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* Postbus 92, 9800 AB Zuidhorn
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* The Netherlands
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* Tel: +31 594 503020
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* Fax: +31 594 505825
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* Email: support@microkey.nl
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* Web: www.microkey.nl
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* ---------------------------------------------------------------------------
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* Description: Real time clock functionality
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* ---------------------------------------------------------------------------
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* Version(s): 0.1, 28-11-2007, fvds.
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* Creation.
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*
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* Updates by MMi
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* ---------------------------------------------------------------------------
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*/
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/* ---------------------------------------------------------------------------
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* System include files
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* ---------------------------------------------------------------------------
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*/
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#include "LPC23xx.h"
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#include "types.h"
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/* FreeRTOS includes */
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#include "FreeRTOS.h"
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/* ---------------------------------------------------------------------------
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* Application include files
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* ---------------------------------------------------------------------------
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*/
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#include "rtc.h"
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#include "dio.h"
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#include "BusProtocol.h"
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/* ---------------------------------------------------------------------------
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* Local constant and macro definitions
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* ---------------------------------------------------------------------------
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*/
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#define IMSEC 0x00000001
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#define IMMIN 0x00000002
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#define IMHOUR 0x00000004
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#define IMDOM 0x00000008
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#define IMDOW 0x00000010
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#define IMDOY 0x00000020
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#define IMMON 0x00000040
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#define IMYEAR 0x00000080
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#define AMRSEC 0x00000001 /* Alarm mask for Seconds */
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#define AMRMIN 0x00000002 /* Alarm mask for Minutes */
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#define AMRHOUR 0x00000004 /* Alarm mask for Hours */
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#define AMRDOM 0x00000008 /* Alarm mask for Day of Month */
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#define AMRDOW 0x00000010 /* Alarm mask for Day of Week */
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#define AMRDOY 0x00000020 /* Alarm mask for Day of Year */
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#define AMRMON 0x00000040 /* Alarm mask for Month */
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#define AMRYEAR 0x00000080 /* Alarm mask for Year */
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#define PREINT_RTC 0x000001C8 /* Prescaler value, integer portion, PCLK = 15Mhz */
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#define PREFRAC_RTC 0x000061C0 /* Prescaler value, fraction portion,PCLK = 15Mhz */
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#define ILR_RTCCIF 0x01
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#define ILR_RTCALF 0x02
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#define CCR_CLKEN 0x01
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#define CCR_CTCRST 0x02
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#define CCR_CLKSRC 0x10
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/* ---------------------------------------------------------------------------
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* Global variable definitions
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* ---------------------------------------------------------------------------
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*/
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extern UINT32 interruptcounter;
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/* ---------------------------------------------------------------------------
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* Local variable definitions
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* ---------------------------------------------------------------------------
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*/
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void rtcISR (void) __attribute__ ((naked));
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/* ---------------------------------------------------------------------------
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* Local function definitions
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* ---------------------------------------------------------------------------
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*/
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/** \brief Initialize RTC interface.*/
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void rtcInit(void)
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{
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/*--- Initialize registers ---*/
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RTC_AMR = 0;
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RTC_CIIR = 0;
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//RTC_CCR = 0;
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//RTC_PREINT = PREINT_RTC;
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//RTC_PREFRAC = PREFRAC_RTC;
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RTC_CCR = (CCR_CLKEN | CCR_CLKSRC);
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/* Enable RTC interrupt and register it to the VIC */
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//portENTER_CRITICAL();
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// {
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// VICIntSelect &= ~(VIC_CHAN_TO_MASK(VIC_CHAN_NUM_RTC));
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// VICIntEnClr = VIC_CHAN_TO_MASK(VIC_CHAN_NUM_RTC);
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// VICVectAddr13 = (void *)rtcISR;
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// VICVectCntl3 = 0x06;
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// VICIntEnable = VIC_CHAN_TO_MASK(VIC_CHAN_NUM_RTC);
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// }
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//portEXIT_CRITICAL();
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//RTC_CIIR |= 0x01; /* Enable Interrupt every Second */
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//RTC_CISS = 0x80; /* Enable SubSecond Interrupt (488u)*/
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}
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/** \brief Read real time clock.*/
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void rtcRead(t_rtc * time)
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{
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time->sec = RTC_SEC;
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time->min = RTC_MIN;
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time->hour = RTC_HOUR;
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time->day = RTC_DOM;
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time->dom = RTC_DOM;
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time->dow = RTC_DOW;
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time->doy = RTC_DOY;
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time->mon = RTC_MONTH;
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time->year = RTC_YEAR;
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}
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/** \brief Write to real time clock.*/
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void rtcWrite(t_rtc * time)
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{
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RTC_SEC = time->sec;
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RTC_MIN = time->min;
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RTC_HOUR = time->hour;
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RTC_DOM = time->day;
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RTC_DOW = time->dow;
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RTC_DOY = time->doy;
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RTC_MONTH = time->mon;
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RTC_YEAR = time->year;
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}
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// Alarms
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/* RTC INTERRUPT SERVICE ROUTINE */
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void rtcISR ()
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{
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portSAVE_CONTEXT(); /* Save context of interrupted task */
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{
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if (RTC_ILR & 0x01) /* Check for Seconds Interrupt */
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{
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RTC_ILR = 0x1; /* Clear Seconds Interrupt */
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}
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if (RTC_ILR & 0x04) /* Check for SubSecond Interrupt */
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{
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RTC_ILR = 0x4; /* Clear SubSeconds Interrupt */
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}
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VICVectAddr = 0x00000000; /* clear Interrupts from the VIC */
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}
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/* Restore the context of whichever task is going to run once the interrupt
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* completes.
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*/
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portRESTORE_CONTEXT();
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}
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