//RTC初始化
//返回值:0,初始化成功;
// 1,LSE开启失败;
// 2,进入初始化模式失败;
u8 RTC_Init(void)
{
u16 retry=0X1FFF;
RCC->APB1ENR|=1<<28; //使能电源接口时钟
PWR->CR|=1<<8; //后备区域访问使能(RTC+SRAM)
if(RTC_Read_BKR(0)!=0X5050) //是否第一次配置?
{
RCC->BDCR|=1<<0; //LSE 开启
while(retry&&((RCC->BDCR&0X02)==0))//等待LSE准备好
{
retry--;
delay_ms(5);
}
if(retry==0)return 1; //LSE 开启失败.
RCC->BDCR|=1<<8; //选择LSE,作为RTC的时钟
RCC->BDCR|=1<<15; //使能RTC时钟
//关闭RTC寄存器写保护
RTC->WPR=0xCA;
RTC->WPR=0x53;
if(RTC_Init_Mode())return 2;//进入RTC初始化模式
RTC->PRER=0XFF; //RTC同步分频系数(0~7FFF),必须先设置同步分频,再设置异步分频,Frtc=Fclks/((Sprec+1)*(Asprec+1))
RTC->PRER|=0X7F<<16; //RTC异步分频系数(1~0X7F)
RTC->CR&=~(1<<6); //RTC设置为,24小时格式
RTC->ISR&=~(1<<7); //退出RTC初始化模式
RTC->WPR=0xFF; //使能RTC寄存器写保护
RTC_Set_Time(23,59,56,0); //设置时间
RTC_Set_Date(14,5,5,1); //设置日期
//RTC_Set_AlarmA(7,0,0,10); //设置闹钟时间
RTC_Write_BKR(0,0X5050); //标记已经初始化过了
}
//RTC_Set_WakeUp(4,0); //配置WAKE UP中断,1秒钟中断一次
return 0;
}
/***********************************************************************
module : [机器设置操作]
function : [设置时间]
return : [0:成功
其它:失败]
comment : [全局普通函数]
machine : [EH-0818]
language : [CHN]
keyword : [MAC_SET]
date : [11/07/21]
author : [chen-zhengkai]
************************************************************************/
int setDate()
{
typ_DATE tdate;
const char returnStr[] = "按任意键返回";
const char cueStr[] = "请输入日期:";
char dBuf[40] = {0};
int ret = 0;
int year = 0;
int month = 0;
int day = 0;
int day_max = 0;
char str1[20] = {0};
char str2[20] = {0};
char str3[20] = {0};
RTC_Get_Date(&tdate);
year = tdate.year;
month = tdate.month;
day = tdate.day;
strcpy(str1,"年:");
strcpy(str2,"月:");
strcpy(str3,"日:");
while (1) {
// sprintf(dBuf,"%04d/%02d/%02d",year,month,day);
// DispStr_CE(0,0,dBuf,DISP_CENTER|DISP_CLRSCR);
DispStr_CE(0,0,cueStr,DISP_CENTER|DISP_CLRSCR);
DispStr_CE(0,4,str1,DISP_POSITION);
DispStr_CE(0,8,str2,DISP_POSITION);
DispStr_CE(0,12,str3,DISP_POSITION);
ret = input_date_time(4,4,4,1980,2100,str1,&year);
if (ret == -1) {
return ret;
}
ret = input_date_time(8,2,1,1,12,str2,&month);
if (ret == -1) {
continue;
}
//判断每个月的天数
switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
day_max = 31;
break;
case 4:
case 6:
case 9:
case 11:
day_max = 30;
break;
case 2:
if ( ( ((year%4)==0)&&(year%100!=0) )
||( (year%400)==0 )
) {
day_max = 29;
}
else {
day_max = 28;
}
break;
default:
return -1;
}
ret = input_date_time(12,2,1,1,day_max,str3,&day);
if (ret != -1) {
tdate.year = year;
tdate.month = month;
tdate.day = day;
tdate.week = RTC_get_week(year,month,day);
RTC_Set_Date(&tdate);
sprintf(dBuf,"%04d/%02d/%02d",year,month,day);
DispStr_CE(0,6,dBuf,DISP_CENTER|DISP_CLRSCR);
DispStr_CE(0,8,returnStr,DISP_CENTER);
delay_and_wait_key( 3, EXIT_KEY_ALL, 0 );
return 0;
}
}
}