可調(diào)電子鐘

1、名稱：用DS1302與數(shù)碼管設(shè)計(jì)的可調(diào)電子鐘說(shuō)明：本例持續(xù)讀取DS1302實(shí)時(shí)時(shí)鐘并顯示在7段數(shù)碼管上，按下K1鍵，K2鍵可調(diào)整小時(shí)與分鐘，按下K3鍵可保存調(diào)整后的時(shí)間#include#include#include#defineuunsigned#defineuintunsignedintsbitSDA=P1^0DS1302數(shù)據(jù)線sbitSCLK=P1^1DS1302時(shí)鐘線sbitRST=P1^2DS1302復(fù)位線sbitK1=P3^

2、2選擇sbitK2=P3^3調(diào)整ucodeDSY_CODE[]=0xc00xf90xa40xb00x990x920x820xf80x800x900xff共陽(yáng)數(shù)碼管段碼表uDisplay_Buffer[]=0x000x000xbf0x000x000xbf0x000x00顯示緩沖，格式：HHMMSSucodeBit_Code[]=0x010x020x040x080x100x200x400x80數(shù)碼管位碼ucodeRunyue[]=13578

3、1012ucodeFrunyue[]=46911uCurrent_Time[7]所讀取的日期時(shí)間uf=0延時(shí)voiddelay(uintm)utwhile(m)f(t=0t120t)向DS1302寫入一個(gè)字節(jié)voidWrite_A_Byte_TO_DS1302(ux)uiSCLK=0拉低SCLK，為脈沖上升沿寫入數(shù)據(jù)做好準(zhǔn)備f(i=0i8i)SCLK=0RST=1啟動(dòng)數(shù)據(jù)傳輸Write_A_Byte_TO_DS1302(addr)寫入命

4、令字Write_A_Byte_TO_DS1302(dat)SCLK=1將時(shí)鐘電平置于已知狀態(tài)RST=0禁止數(shù)據(jù)傳遞設(shè)置時(shí)間voidSET_DS1302()Write_DS1302(0x8e0x00)寫控制字，取消寫保護(hù)Write_DS1302(0x82(Current_Time[0]104)|(Current_Time[0]%10))寫入秒Write_DS1302(0x82(Current_Time[1]104)|(Current_Ti

5、me[1]%10))寫入分Write_DS1302(0x84(Current_Time[2]104)|(Current_Time[2]%10))寫入時(shí)Write_DS1302(0x86(Current_Time[5]104)|(Current_Time[5]%10))寫入日Write_DS1302(0x88(Current_Time[4]104)|(Current_Time[4]%10))寫入月Write_DS1302(0x8c(Cur

6、rent_Time[3]104)|(Current_Time[3]%10))寫入年Write_DS1302(0x8e0x80)加保護(hù)讀取當(dāng)前日期時(shí)間voidGetTime()Current_Time[0]=Read_Data(0x81)秒Current_Time[1]=Read_Data(0x83)分鐘Current_Time[2]=Read_Data(0x85)小時(shí)Current_Time[3]=Read_Data(0x8d)年Cur

7、rent_Time[4]=Read_Data(0x89)月Current_Time[5]=Read_Data(0x87)日顯示時(shí)間voidTime()uiDisplay_Buffer[0]=DSY_CODE[Current_Time[2]10]查表得到小時(shí)十位Display_Buffer[1]=DSY_CODE[Current_Time[2]%10]查表得到小時(shí)個(gè)位Display_Buffer[3]=DSY_CODE[Current_T