second=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F)中=((ReadValue&...
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发布时间：2024-07-08 12:31
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热心网友
时间：2024-08-04 03:24
ReadValue是向时钟芯片索要的时间值，这里是second（秒），ReadValue是一个16进制数，需要 转化为10进制数，或上0x70取得高4位再右移4位再乘以10作为10位数，或上0x0f得到低四位作为个位数。
热心网友
时间：2024-08-04 03:21
第二个=(ReadValue&0x70)> > 4)* 10 +(ReadValue&0x0F)中=(ReadValue&0x70)> > 4)* 10
热心网友
时间：2024-08-04 03:22
这个是不是Excell里面的公式？？？
second=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F)中=((ReadValue&...
ReadValue是向时钟芯片索要的时间值，这里是second（秒），ReadValue是一个16进制数，需要 转化为10进制数，或上0x70取得高4位再右移4位再乘以10作为10位数，或上0x0f得到低四位作为个位数。
求大神们帮忙!!单片机ATmega8515读取RTC(DS1302)的时间信息的C语言程 ...
ReadValue = ReadSet1302(0x81); //从秒寄存器读数据 second=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);//将读出数据转化 DisplaySecond(second); //显示秒 ReadValue = ReadSet1302(0x83); //从分寄存器读 minute=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); //将读出数据转化 DisplayMinu...
跪求单片机c51一个多功能时钟设计。要闹钟。调整时间、秒表、就行了...
Write1302(Address, ((Value/10)<<4 | (Value%10))); //高4位为十位,低4位为个位}void DS1302_GetTime(SYSTEMTIME *Time){ unsigned char ReadValue; ReadValue = Read1302(DS1302_SECOND); Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);//转换成10进制的秒 ReadValue = Read1...
ReadValue是8位bcd码,请问((ReadValue&0x70)>>4)*10是什么意义?是转换...
((ReadValue&0x70)>>4)，这是将高位移位到低位。((ReadValue&0x70)>>4)*10，这是将原BCD码数值乘以10，变成0~70的十六进制数。
如何读出DS1302里面的时钟数据?
Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_MINUTE); Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); ReadValue = Read1302(DS1302_HOUR); Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); ReadValue = Read...
跪求51单片机+12864液晶+1302时钟制成的万年历c程序?
} //在DS1302中的与日历、时钟相关的寄存器存放的数据必须为BCD码形式void DS1302_GetTime(SYSTEMTIME *Time){ unsigned char ReadValue; ReadValue = Read1302(DS1302_SECOND); Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); //将BCD码转换为十进制数 ReadValue = Read1302(DS1302_...
ds1302 设置月份显示结果显示不正确,寻求指点
void DS1302_GetTime(SYSTEMTIME *Time) //获取时钟芯片的时钟数据到自定义的结构型数组 { unsigned char ReadValue;ReadValue = Read1302(DS1302_SECOND);Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F); //高三位取出读出乘⑩ sec = Time->Second;ReadValue = Read1302(DS...
ds1302读不了数值啊,感觉那个time[]全是0 啊,求高手解答
Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_MINUTE);Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = Read1302(DS1302_HOUR);Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);ReadValue = ...
ds1302的头文件?
define DS1302_YEAR 0x8C define DS1302_RAM(X) (0xC0+(X)*2) //用于计算RAM地址的宏运算 //定义时间类型 typedef struct _SYSTEMTIME_{ unchar Second;unchar Minute;unchar Hour;unchar Week;unchar Day;unchar Month;unchar Year;unchar DateString[9];unchar TimeString[9];}...
java高于某个数如何写?
如果你想要比较某个数是否高于某个特定数，可以使用大于号(>)进行比较。例如：int number1 = 5;int number2 = 10;if (number1 > number2) { System.out.println(number1 + " is greater than " + number2);} else { System.out.println(number1 + " is not greater than " + number2...
