REVISION
Definition in file rtc_inc.h.
#include "stdio.h"
#include "stdlib.h"
#include "../ctype.h"
#include "../c54regs.h"
#include "../feature.h"
Include dependency graph for rtc_inc.h:
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Go to the source code of this file.
Enumerations | |
| enum | RTC_SPIMODE { RTC_SPIRD, RTC_SPIWR } |
Functions | |
| void | RTC_init (void) |
| Function initialized the RTC chip. | |
| void | RTC_setTime (st_TIME *) |
| This function will fill the time registers with the contents of a time structure. | |
| void | RTC_readTime (st_TIME *) |
| This function reads the time registers and fill a time structure. | |
| int | RTC_INT2BCD (int) |
| This function takes an integer and converts it to a BCD number. | |
| int | RTC_BCD2INT (int, int) |
| Corresponding integer value. | |
| void | RTC_control (int, int, int) |
| This function will set or reset a particular bit(s) in the control registers of the RTC. | |
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Definition at line 71 of file rtc_inc.h. 00072 {
00073 RTC_SPIRD,
00074 RTC_SPIWR
00075 } RTC_SPIMODE;
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This function will set or reset a particular bit(s) in the control registers of the RTC. There are three commands. RTC_INIT, RTC_SET and RTC_RESET. RTC_INIT must first be done at system startup to bring a copy of the both registers so that they can be worked on.
Definition at line 60 of file SYS_rtc.c. References RTC_SPIRD, and RTC_SPIWR. Referenced by RTC_init(). 00061 {
00062 switch (Action)
00063 {
00064 default:
00065 case RTC_INIT:
00066 RTC_Control1 = RTC__spi(RTC_SPIRD, CONTROL1_ADDR + RTCRD);
00067 RTC_Control2 = RTC__spi(RTC_SPIRD, CONTROL2_ADDR + RTCRD);
00068 break;
00069
00070 case RTC_ON:
00071 RTC_Control1 |= Reg1;
00072 RTC_Control2 |= Reg2;
00073 RTC__spi(RTC_SPIWR, (ULONG)RTC_Control1*256 + CONTROL1_ADDR + RTCWR);
00074 RTC__spi(RTC_SPIWR, (ULONG)RTC_Control2*256 + CONTROL2_ADDR + RTCWR);
00075 break;
00076
00077 case RTC_OFF:
00078 RTC_Control1 &= (0xffff ^Reg1);
00079 RTC_Control2 &= (0xffff ^Reg2);
00080 RTC__spi(RTC_SPIWR, (ULONG)RTC_Control1*256 + CONTROL1_ADDR + RTCWR);
00081 RTC__spi(RTC_SPIWR, (ULONG)RTC_Control2*256 + CONTROL2_ADDR + RTCWR);
00082 break;
00083 }
00084 }
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This function takes an integer and converts it to a BCD number.
Definition at line 193 of file SYS_rtc.c. 00194 {
00195 int INT2BCD_Data[ ] = {80,40,20,10};
00196 int i;
00197 int val = 0;
00198
00199 for (i = 0; i < sizeof(INT2BCD_Data); i++)
00200 {
00201 val = val << 1;
00202 if (intVal >= INT2BCD_Data[i])
00203 {
00204 val |= 1;
00205 intVal = intVal % INT2BCD_Data[i];
00206 }
00207 }
00208 val = (val*16)+intVal;
00209 return(val);
00210 }
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This function reads the time registers and fill a time structure.
Definition at line 113 of file SYS_rtc.c. References RTC_SPIRD. Referenced by MENU_statusBar(), UI_currentTimeString(), and UI_readRTC(). 00114 {
00115 pTime->Second = RTC__spi(RTC_SPIRD,SECOND_ADDR + RTCRD);
00116 pTime->Minute = RTC__spi(RTC_SPIRD,MINUTE_ADDR + RTCRD);
00117 pTime->Hour = RTC__spi(RTC_SPIRD,HOUR_ADDR + RTCRD);
00118 pTime->Weekday = RTC__spi(RTC_SPIRD,WEEKDAY_ADDR + RTCRD);
00119 pTime->Day = RTC__spi(RTC_SPIRD,DAY_ADDR + RTCRD);
00120 pTime->Month = RTC__spi(RTC_SPIRD,MONTH_ADDR + RTCRD);
00121 pTime->Year = RTC__spi(RTC_SPIRD,YEAR_ADDR + RTCRD);
00122
00123 // Verify time structure.
00124 if( (HIBYTE_3(pTime->Second) > 5) || (LOBYTE(pTime->Second) > 9) )
00125 pTime->Second = 0x30;
00126
00127 if( (HIBYTE_3(pTime->Minute) > 5) || (LOBYTE(pTime->Minute) > 9) )
00128 pTime->Minute = 0x30;
00129
00130 if( (HIBYTE_2(pTime->Hour) > 2) || (LOBYTE(pTime->Hour) > 9) ||
00131 ((HIBYTE_2(pTime->Hour) == 2)&&(LOBYTE(pTime->Hour) > 3) ) )
00132 pTime->Hour = 0x03;
00133
00134 if( (HIBYTE_2(pTime->Day) > 3) || (LOBYTE(pTime->Day) > 9) ||
00135 ((pTime->Day & 0x3F) == 0) ||
00136 ((HIBYTE_2(pTime->Day) == 3)&&(LOBYTE(pTime->Day) > 1) ) )
00137 pTime->Day = 0x18;
00138
00139 if( (HIBYTE_1(pTime->Month) > 1) || (LOBYTE(pTime->Month) > 9) ||
00140 ((pTime->Month & 0x1F) == 0) ||
00141 ((HIBYTE_1(pTime->Month) == 1)&&(LOBYTE(pTime->Month) > 2) ) )
00142 pTime->Month = 0x05;
00143
00144 if( (HIBYTE(pTime->Year) > 9) || (LOBYTE(pTime->Year) > 9) )
00145 pTime->Year = 0x00;
00146 }
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This function will fill the time registers with the contents of a time structure.
Definition at line 94 of file SYS_rtc.c. References RTC_SPIWR. 00095 {
00096 RTC__spi(RTC_SPIWR, (ULONG)pTime->Second*256 +SECOND_ADDR + RTCWR);
00097 RTC__spi(RTC_SPIWR, (ULONG)pTime->Minute*256 +MINUTE_ADDR + RTCWR);
00098 RTC__spi(RTC_SPIWR, (ULONG)pTime->Hour*256 +HOUR_ADDR + RTCWR);
00099 RTC__spi(RTC_SPIWR, (ULONG)pTime->Weekday*256 +WEEKDAY_ADDR + RTCWR);
00100 RTC__spi(RTC_SPIWR, (ULONG)pTime->Day*256 +DAY_ADDR + RTCWR);
00101 RTC__spi(RTC_SPIWR, (ULONG)pTime->Month*256 +MONTH_ADDR + RTCWR);
00102 RTC__spi(RTC_SPIWR, (ULONG)pTime->Year*256 +YEAR_ADDR + RTCWR);
00103 }
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1.3.9.1