【導(dǎo)讀】配合繼電器、揚聲器等的使用，給出了設(shè)計過程與編程方法，并用keil和Proteus軟件進(jìn)行調(diào)制仿真，實?，F(xiàn)了智能電熱壺的自動報警、智能控制?？萍己孔詈诵牡牟糠种籟1]。同時，這項技術(shù)能夠綜合運用單片機(jī)和信息傳輸和處理等方面。財產(chǎn)安全帶來了很大的隱患。因此一款更安全、智能、人性化的電熱壺產(chǎn)品成了一種需求，和必然。由于這類計算機(jī)系統(tǒng)的基本部件均集成在同一芯片內(nèi)，因此被稱為單片微控制器?；蛭⒖刂茊卧?Micro．Con

　　

【正文】 讀到數(shù)據(jù)總線 DB7～ DB0， Y 地址指針自動加 1。必須注意的是，進(jìn)行讀操作之前，必須有一次空讀操作，緊接著再讀才會讀出所要讀的單元中的數(shù)據(jù) [13]。 AT89C51 時序 12 機(jī)器周期 CPU 完 成一個基本操作所需要的時間稱為機(jī)器周期。在單片機(jī)中常把執(zhí)行一條指令的過程分為若干階段。每一個階段為一個基本操作，如取指令、讀或?qū)憯?shù)據(jù)等。 51單片機(jī)每 12個時鐘周期為一個機(jī)器周期，即 TcY=12/fosc。若 fosc=6MHz，則 Tcy=2us； fosc=12MHz，則 Tcy=1us。 AT89C51 單片機(jī)的一個機(jī)器周期包括 12 個時鐘周期，分為 6個狀態(tài)： s1～ s6。每個狀態(tài)又分為兩拍，稱為 P1 和 P2。因此一個機(jī)器中的 12個時鐘周期表示為： S1P S1P S2P S2P?、 S6P2。如圖 2— 6所示。 寫 操作時序 圖 7 寫操作時序圖 讀操作時序 圖 8 讀操作時序圖 13 4 具體設(shè)計 硬件連接總原理圖 本系統(tǒng)在 Proteus 中設(shè)計的線路連接如圖 9所示： 14 圖 9 系統(tǒng)原理圖 程序設(shè)計 程序流程圖 智能電熱壺控制系統(tǒng)總流 程如圖 10 所示 [15]: 15 圖 10 程序流程圖 總程序及各函數(shù)功能簡介 sbit rw=0xb1。 //定義各端口 sbit rs=0xb2。 開始 初始化 復(fù)位 寫左屏 顯示左屏 顯示右屏 保持 滾動 延時 為 1? 寫右屏 開始 N Y N Y 16 sbit cs2=0xb3。 sbit cs1=0xb4。 sbit busy=0xa7。 char code huan[]={0x04,0x34,0xc4,0x04,0xc4,0x3c,0x20,0x10, 0x0f,0xe8,0x08,0x08,0x28,0x18,0x00,0x00, 0x10,0x08,0x06,0x01,0x82,0x8c,0x40,0x30, 0x0c,0x03,0x0c,0x10,0x60,0xc0,0x40,0x00}。 char code ying[]={0x40,0x42,0x44,0xc8,0x00,0xfc,0x04,0x02, 0x82,0xfc,0x04,0x04,0x04,0xfe,0x04,0x00, 0x00,0x40,0x20,0x1f,0x20,0x47,0x42,0x41, 0x40,0x7f,0x40,0x42,0x44,0x63,0x20,0x00}。 char code guang[]={0x40,0x40,0x42,0x44,0x58,0xc0,0x40,0x7f, 0x40,0xc0,0x50,0x48,0x46,0x64,0x40,0x00, 0x00,0x80,0x40,0x20,0x18,0x07,0x00,0x00, 0x00,0x3f,0x40,0x40,0x40,0x40,0x70,0x00}。 char code lin[]={0x00,0xfc,0x00,0xff,0x40,0x20,0x10,0x0c, 0x2b,0x48,0xc8,0x08,0x08,0x8c,0x08,0x00, 0x00,0x1f,0x00,0xff,0x00,0xff,0x41,0x41, 0x41,0x7f,0x41,0x41,0x41,0xff,0x01,0x00}。 char code an[]={0x90,0x8c,0x84,0x84,0x84,0x84,0xf5,0x86, 0x84,0x84,0x84,0x84,0x84,0xd4,0x8c,0x00, 0x00,0x00,0x80,0x84,0x46,0x49,0x28,0x10, 0x10,0x28,0x47,0xc0,0x00,0x00,0x00,0x00}。 char code hui[]={0x20,0x10,0x8c,0x63,0x5c,0xd0,0x5f,0x50, 0xdc,0x20,0x90,0x1f,0x10,0xf0,0x10,0x00, 0x02,0x01,0xff,0x40,0x29,0x8d,0xfb,0x0d, 0xa8,0x40,0x27,0x18,0x2c,0xc3,0x40,0x00}。 char code ke[]={0x24,0x24,0x24,0xa4,0xfe,0xa3,0x22,0x00, 0x24,0x48,0x00,0xff,0x00,0x80,0x00,0x00, 0x10,0x08,0x06,0x01,0xff,0x00,0x01,0x02, 0x02,0x02,0x02,0xff,0x01,0x01,0x01,0x00}。 char code ji[]={0x10,0x10,0x10,0xff,0x10,0x10,0x88,0x88, 0x88,0xff,0x88,0x88,0x8c,0x08,0x00,0x00, 0x04,0x44,0x82,0x7f,0x01,0x80,0x81,0x46, 0x28,0x10,0x28,0x26,0x41,0xc0,0x40,0x00}。 char code xue[]={0x40,0x30,0x11,0x96,0x90,0x90,0x91,0x96, 0x90,0x90,0x98,0x14,0x13,0x50,0x30,0x00, 0x04,0x04,0x04,0x04,0x04,0x44,0x84,0x7e, 0x06,0x05,0x04,0x04,0x04,0x06,0x04,0x00}。 char code yuan[]={0x00,0xfe,0x22,0x5a,0x96,0x0c,0x24,0x24, 0x25,0x26,0x24,0x34,0xa4,0x14,0x0c,0x00, 0x00,0xff,0x04,0x08,0x87,0x81,0x41,0x31, 0x0f,0x01,0x3f,0x41,0x41,0x41,0x70,0x00}。 char code zhi[]={0x40,0x60,0x5e,0x48,0x48,0xff,0x48,0x4c, 0x68,0x40,0xf8,0x00,0x00,0xff,0x00,0x00, 17 0x00,0x00,0x3f,0x01,0x01,0xff,0x11,0x21, 0x1f,0x00,0x07,0x40,0x80,0x7f,0x00,0x00}。 char code zuo[]={0x80,0x40,0x20,0xf8,0x87,0x40,0x30,0x0f, 0xf8,0x88,0x88,0xc8,0x88,0x0c,0x08,0x00, 0x00,0x00,0x00,0xff,0x00,0x00,0x00,0x00, 0xff,0x08,0x08,0x08,0x0c,0x08,0x00,0x00}。 char code zhe[]={0x20,0x20,0x24,0x24,0x24,0xa4,0x7f,0x24, 0x34,0x2c,0x24,0xa2,0x20,0x30,0x20,0x00, 0x10,0x08,0x04,0x02,0xff,0x49,0x49,0x49, 0x49,0x49,0x49,0xff,0x01,0x00,0x00,0x00}。 char code mh[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x33,0x33,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}。 char code cheng[]={0x24,0x24,0xa4,0xfe,0xa3,0x22,0x20,0x7e, 0x42,0x42,0x42,0x42,0x42,0x7f,0x02,0x00, 0x08,0x06,0x01,0xff,0x00,0x43,0x41,0x49, 0x49,0x49,0x7f,0x49,0x4d,0x69,0x41,0x00}。 char code sai[]={0x08,0x86,0x82,0xaa,0xaa,0xfe,0xaa,0xab, 0xaa,0xfe,0xaa,0xaa,0x82,0x8a,0x06,0x00, 0x08,0x08,0x04,0x82,0x9f,0x42,0x42,0x3a, 0x42,0x42,0x9f,0x82,0x04,0x0c,0x04,0x00}。 char code dian[]={0x00,0xf8,0x48,0x48,0x48,0x48,0xff,0x48, 0x48,0x48,0x48,0xfc,0x08,0x00,0x00,0x00, 0x00,0x07,0x02,0x02,0x02,0x02,0x3f,0x42, 0x42,0x42,0x42,0x47,0x40,0x70,0x00,0x00}。 char code zi[]={0x80,0x80,0x82,0x82,0x82,0x82,0x82,0xe2, 0xa2,0x92,0x8a,0x86,0x80,0xc0,0x80,0x00, 0x00,0x00,0x00,0x00,0x00,0x40,0x80,0x7f, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}。 char code xin[]={0x80,0x40,0x20,0xf8,0x07,0x24,0x24,0x24, 0x25,0x26,0x24,0x24,0xb4,0x26,0x04,0x00, 0x00,0x00,0x00,0xff,0x00,0x01,0xfd,0x45, 0x45,0x45,0x45,0x45,0xfd,0x01,0x00,0x00}。 char code xi[]={0x00,0x00,0x00,0xfc,0xa4,0xa6,0xa5,0xa4, 0xa4,0xa4,0xa4,0xfe,0x04,0x00,0x00,0x00, 0x40,0x30,0x00,0x77,0x84,0x84,0x8c,0x94, 0xb4,0x84,0x84,0xe7,0x00,0x10,0x60,0x00}。 char code gong[]={0x00,0x04,0x04,0x04,0x04,0x04,0x04,0xfc, 0x04,0x04,0x04,0x04,0x06,0x04,0x00,0x00, 0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x3f, 0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00}。 void pulse() //下降沿生成函數(shù)，保持?jǐn)?shù)據(jù) { 18 e=1。 e=0。 } void busy_check(char right) //檢查是否忙函 數(shù)，即檢查 口 { P2=0xff。 if (right==1) //檢查左屏 { P3=0x13。 while(!busy)。 } if (right==0) //檢查右屏 { P3=0x0b。 while(!busy)。 } } void cmd_w(char cmd,char right) //寫指令函數(shù) { busy_check(right)。 if (right==1) //寫左屏 { P3=0x10。 } if (right==0) //寫右屏 { P3=0x08。 P3=0x08。 } P2=cmd。 pulse()。 } void data_