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大家?guī)兔聪逻@個(gè)程序，WINCE下的RTC時(shí)鐘設(shè)置

作者：參天小樹　欄目：嵌入式系統(tǒng)

大家?guī)兔聪逻@個(gè)程序，WINCE下的RTC時(shí)鐘設(shè)置
//
// COPYRIGHT (c) Microsoft CORPORATION.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// INSTALL media.
//
/* -*-C-*-
*
* $Revision: 1.5 $
*   $Author: xinxing $
*     $Date: 2005/04/29 02:45:54 $
*
* COPYRIGHT (c) 1999 ARM Limited
* All Rights Reserved
*
* timex20t.c - ARMX20T (X = 7, 9, 10) platform timer routines
*/

#ifndef      _HW_DEFS_
#define     _HW_DEFS_

#include <windows.h>
#include "C:\WINCE420\PUBLIC\COMMON\OAK\INC\nkintr.h"

extern BOOL (*KLocalFileTimeToFileTime)(const FILETIME *, LPFILETIME);

#include "C:\WINCE420\PLATFORM\ep931x\inc\hwdefs.h"

DWORD dwReschedIncrement;
extern volatile LARGE_INTEGER CurTicks;

// The following CONTROL the debug OUTPUT of the alarm & set functions
#define DEBUG_ALARM     0
#define DEBUG_SET       0

static volatile BOOL    gfInitRTC = TRUE;
static FILETIME         gftLastFileTime;
static LARGE_INTEGER    gliLastCurTicks;             // in ms

//
// The following are located in hal\interrupt.c
// They are used to CONTROL the alarm setting.
//
extern volatile BOOL           gfRTCAlarm;      // Is the RTC alarm enabled?
extern volatile LARGE_INTEGER  gliRTCAlarmTicks; // Date & time of the alarm.

//
// Multipling by 161111 and then right shifting by 13 is the same as 10000000 / TIMER_508KHZ_FREQ
//
// This gives you the NUMBER of 100 nano second chunks...(nano chunks)
//
#define TICKS_TO_NANO_CHUNKS( time )  (time) *= 161111; (time) = ((time) >> 13)

//
// Multiply by 33 and then right shift by 24 is the same as TIMER_508KHZ_FREQ / 10000000
// This will give us TICKS
//
#define NANO_CHUNKS_TO_TICKS( time )  (time) = ((time) << 13); (time) = (time) / 161111
////

#define VIRTUAL_SYSTEM_ASIC_REGS_BASE       (0x90000000 | 0x20000000)

#define  GPIO_PGDR                  (volatile ULONG *)(GPIO_BASE + 0x0038)
#define  GPIO_PGDDR                 (volatile ULONG *)(GPIO_BASE + 0x003C)

#define EEDRIVE             (volatile DWORD *)(GPIO_BASE + 0x00C8)

#define   WRITE_ADDRESS                0xD0
#define   READ_ADDRESS                0xD1

typedef union
{
    struct
    {
        unsigned int EECLK:1;
        unsigned int EEDATA:1;
        unsigned int UNUSED:30;
    } Field;
    unsigned int VALUE;

} GPIO_DATA_REG_TYPE;

typedef union
{
    struct
    {
        unsigned int EECLK:1;
        unsigned int EEDATA:1;
        unsigned int UNUSED:30;
    } Field;
    unsigned int VALUE;

} GPIO_DATA_DIR_REG_TYPE;

typedef struct tGPIO
{
    GPIO_DATA_REG_TYPE          PGDR;                   // 0038
    GPIO_DATA_DIR_REG_TYPE      PGDDR;                  // 003C
}GPIOG;

//typedef struct _SYSTEMTIME {
//    unsigned LONG wYear;
//    unsigned LONG wMonth;
//    unsigned LONG wDayOfWeek;
//    unsigned LONG wDay;
//    unsigned LONG wHour;
//    unsigned LONG wMinute;
//    unsigned LONG wSecond;
//    unsigned LONG wMilliseconds;
//} SYSTEMTIME, *PSYSTEMTIME;

typedef SYSTEMTIME *PSYSTEMTIME;

///
//#include "ds1337.h"

unsigned LONG ds1337_bias=0;
unsigned LONG ds1337_current_sec=0;

static volatile GPIOG * const gpio_g       = (GPIOG *)(GPIO_BASE + 0x0038);

#define PERIOD_US_100HZ             10
#define DELAY_US                    (PERIOD_US_100HZ/2)

void gen_ack(int not_ack);
int wait_ack(void);
///

/* EOF timex20t.c */

/*
*  Delay Function.
*/
void MyDelayInuSec(unsigned LONG uS)
{
    unsigned LONG passed, startTime;

    startTime= *TIM_DEBUGVALUELOW;
    passed=0;

    while ( passed < uS)
    {
       passed = (*TIM_DEBUGVALUELOW - startTime);
    }
}

/*
*  Write the registers of DS1337,
*/
int write_ds1337(int address,const CHAR* pdata, int nbytes)
{
    int i,j;

    //
    //  Wait for bus not busy.
    //
    gpio_g->PGDDR.Field.EECLK =0;
    gpio_g->PGDDR.Field.EEDATA =0;
    while( !(gpio_g->PGDR.VALUE & 0x3) ){}

    //
    //  Start Condition.
    //
    gpio_g->PGDDR.Field.EECLK =0;
    gpio_g->PGDDR.Field.EEDATA =1;
    gpio_g->PGDR.Field.EEDATA = 0;
    while( gpio_g->PGDR.Field.EECLK != 1 ){}

    //
    //  Send DS1337 Slave Address For Write.
    //
    gpio_g->PGDDR.Field.EECLK =1;
    gpio_g->PGDDR.Field.EEDATA =1;
    gpio_g->PGDR.Field.EECLK = 0;
    MyDelayInuSec(DELAY_US);
    for(i=0;i<8;i++)
    {
        gpio_g->PGDR.Field.EEDATA = ((WRITE_ADDRESS>>(7-i))&

2樓：	>>參與討論
作者： devicegate 于 2006/12/6 22:18:00 發(fā)布： :) 你想問什么呢？

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大家?guī)兔聪逻@個(gè)程序，WINCE下的RTC時(shí)鐘設(shè)置

大家?guī)兔聪逻@個(gè)程序，WINCE下的RTC時(shí)鐘設(shè)置