單片機(jī)交通燈控制系統(tǒng)(編輯修改稿)
2025-08-26 00:27 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 斷，返回運(yùn)行過程SN:綠燈(27)，EW:紅燈是否到3秒SN:黃燈亮，EW:紅燈Count10？SN:黃燈滅，EW:紅燈是否到0秒NYYNNEW:綠燈(27)，SN:紅燈是否到3秒EW:黃燈亮，SN:紅燈Count10？EW:黃燈滅，EW:紅燈是否到0秒YYYNNNLED顯示緩沖區(qū) DISPYLED顯示程序Display獲取當(dāng)前通行剩余時(shí)間送h、lE/S/W/N狀態(tài)送P0口位選碼送P3口倒計(jì)時(shí)個(gè)/十位送P1口調(diào)用Delay延時(shí)i++。j++四位顯示完？YN返回主程序T0中斷定時(shí)計(jì)數(shù)初值50ms計(jì)數(shù)(count)加1判斷1S(count=20?)到否count清0Time_SN。Time_EW恢復(fù)現(xiàn)場(chǎng)中斷返回NY中斷返回恢復(fù)現(xiàn)場(chǎng)Busy_Button==0所有路口全紅燈Busy_Button==1SN_Add==0SN1+=1SN199NSN1=99YSN_Red==0SN1=1SN120NSN1=20YEW_Add==0EW1+=1EW199NEW1=99YEW_Red==0EW1=1EW120NEW1=20YINT0中斷獲取中斷信息 P0、P1口顯示狀態(tài)編碼表P0編碼備注P0^7P0^6P0^5P0^4P0^3P0^2P0^1P0^0111111100FEH紅燈101111110BFH黃燈111101110F7H綠燈P1編碼備注P1^7P1^6P1^5P1^4P1^3P1^2P1^1P1^0111100000C0H0111110010F9H1101001000A4H2101100000B0H31001100199H41001001092H51000001082H611111000F8H71000000080H81001000090H9 程序源代碼define uchar unsigned charinclude/**************************變量、控制位定義**************************/uchar code table[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90}。//0~~9段選碼uchar code table1[28]={0xF7,0xFE,0xF7,0xFE,0xBF,0xFE,0xBF,0xFE,0xFF,0xFE,0xFF,0xFE,0xFE,0xF7,0xFE,0xF7,0xFE,0xBF,0xFE,0xBF,0xFE,0xFF,0xFE,0xFF,0xFE,0xFE,0xFE,0xFE}。/*各種狀態(tài)下紅綠燈段選碼,狀態(tài)(03):EW綠燈,SN紅燈。狀態(tài)(47):EW黃燈亮,SN紅燈。狀態(tài)(811):EW黃燈滅,SN紅燈。狀態(tài)(1215):EW紅燈,SN綠燈。狀態(tài)(1619):EW紅燈
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