【正文】 院畢業(yè)論文 （設(shè)計(jì)） 8 模塊 引腳號(hào) 符號(hào) 功能 電源 8 VSS 電源地 16 VDD 電源 接 +5V 14 VREF A/D 轉(zhuǎn)換參考電壓 13 AGND 模擬 地 輸入 輸出 14 AIN0AIN3 模擬量輸入端 15 AOUT 模 擬量輸出端 地址 57 A0A2 用于硬件地址編程 IIC 通信 9 SDA I2C 總線數(shù)據(jù)輸入輸出 10 SCL I2C 總線時(shí)鐘輸入 時(shí)鐘相關(guān) 11 OSC 時(shí)鐘輸入 /輸出 12 EXT 外部 /內(nèi)部時(shí)鐘切換 注： PCF8591 簡(jiǎn)介 PCF8591 是 8 位 A/D 轉(zhuǎn)換集成塊， 3 個(gè)地址引腳 A0, A1 和 A2 可用于硬件地址編程，允許在同個(gè) I178。 模塊四： A/D 轉(zhuǎn)換模塊，使用 PCF8591，通過 IIC 協(xié)議，直接讀取采樣的電壓值。例如，其支持單片機(jī)和周邊設(shè)備，可以仿真 51系列、 808 AVR、 PIC、 Motorola 的 68系列等常用的 MCU，并提供周邊設(shè)備的仿真，例如 37 led、示波器等。 蕪湖信息技術(shù)職業(yè)學(xué)院畢業(yè)論文 （設(shè)計(jì)） 14 軟件部分 /******************************************************************** 主程序 *******************************************************************/ include //單片機(jī)端口定義 include //調(diào)用 IIC 通信協(xié)議 include //調(diào)用存儲(chǔ)器 include //調(diào)用漢字庫 include //調(diào)用液晶顯示 include //調(diào)用延時(shí) include //測(cè)溫程序 include //調(diào)用菜單 include //調(diào)用 A/D 模塊 include //調(diào)用鍵盤 unsigned char wang[4]={0x00,0x02,0x00,0x00}。 void Start(void) { Sda=1。_nop_()。 } void Stop(void) { Sda=0。 Sda=1。_nop_()。_nop_()。 Scl=1。_nop_()。_nop_()。 BitCounter。_nop_()。_nop_()。 } BitCounter。i125。 Send(AddWr)。 } } void RdFromROM(unsigned char Data[],unsigned char Address,unsigned char Num) { unsigned char i。 Send(Address+i)。 Stop()。 //單 unsigned char code hz7[32]={ 0x0,0x0,0x0,0x0,0x0,0xfe,0x88,0x88,0x88,0x8f,0x88,0x88,0xc,0x8,0x0,0x0, 0x0,0x0,0x40,0x20,0x18,0x7,0x0,0x0,0x0,0x0,0x0,0x7f,0x0,0x0,0x0,0x0, }。 //器 unsigned char code hz15[32]={ 0x0,0x0,0x12,0x14,0xf0,0x0,0x20,0xa0,0xaa,0xbf,0xaa,0xa0,0x20,0x0,0x0,0x0, 0x0,0x0,0x0,0x40,0x3f,0x40,0x20,0x7f,0xa,0x2a,0x4a,0x7f,0x0,0x0,0x0,0x0, }。 //溫 unsigned char code hz23[32]={ 0x0,0x0,0xFC,0x24,0x24,0x24,0xFC,0xA5,0xA6,0xA4,0xFC,0x24,0x34,0x26,0x4,0x00, 0x40,0x20,0x9F,0x80,0x42,0x42,0x26,0x2A,0x12,0x2A,0x26,0x42,0x40,0xC0,0x40,0x00 }。 //帶 unsigned char code hz31[32]={ 0x08,0x08,0x08,0xF8,0x0C,0x28,0x20,0x20,0xFF,0x20,0x20,0x20,0x20,0xF0,0x20,0x00, 0x08,0x18,0x08,0x0F,0x84,0x44,0x20,0x1C,0x03,0x20,0x40,0x80,0x40,0x3F,0x00,0x00 }。 //: unsigned char code hz39[32]={ 0x0,0x78,0x4,0x4,0x4,0x4,0x84,0x78,0x0,0xf0,0x8,0x4,0x4,0x8,0xf0,0x0, 0x0,0x60,0x50,0x48,0x44,0x42,0x41,0x60,0x0,0x1f,0x20,0x40,0x40,0x20,0x1f,0x0, }。 //得 unsigned char code hz47[32]={ 0x80,0x40,0x20,0xF8,0x07,0x04,0xE4,0xA4,0xA4,0xBF,0xA4,0xA4,0xF6,0x24,0x00,0x00, 0x00,0x00,0x00,0xFF,0x40,0x40,0x7F,0x4A,0x4A,0x4A,0x4A,0x4A,0x7F,0x40,0x40,0x00 }。 //6 unsigned char code seven[32]={ 0x0,0x0,0x0,0x0,0x0,0x18,0x8,0x8,0x88,0x68,0x18,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3f,0x0,0x0,0x0,0x0,0x0,0x0,0x0, }。 //歐姆 unsigned char code k[32]={ 0x0,0x0,0x0,0x0,0x4,0xfc,0x0,0x0,0x80,0x80,0x80,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x20,0x3f,0x24,0x2,0x2d,0x30,0x20,0x0,0x0,0x0,0x0,0x0, }。 void disp1(unsigned char code *hz)。 } void lcd_mwdata(unsigned char i) //寫入數(shù)據(jù) ， { RW=0。 } void lcd_init(void) //初始化 { lcd_mwcode(0xc0)。 E=1。E=0。 sbit RW = P3^3。 //pane unsigned char code line[16]={ //0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x0, }。 //2 unsigned char code three[32]={ 0x0,0x0,0x0,0x0,0x0,0x18,0x4,0x84,0x84,0x84,0x78,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x1c,0x20,0x20,0x20,0x20,0x1f,0x0,0x0,0x0,0x0,0x0, }。 //05 unsigned char code hz43[32]={ 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 }。 //仁 unsigned char code hz35[32]={ 0x08,0x08,0x08,0x88,0x48,0x28,0x18,0xFF,0x18,0x28,0x48,0x88,0x08,0x0C,0x08,0x00, 蕪湖信息技術(shù)職業(yè)學(xué)院畢業(yè)論文 （設(shè)計(jì)） 21 0x02,0x82,0x71,0x00,0x00,0x10,0x60,0x07,0x10,0x60,0x00,0x10,0x21,0xC3,0x01,0x00 }。 //關(guān) unsigned char code hz27[32]={ 0x80,0x82,0x82,0x82,0xFE,0x82,0x82,0x82,0x82,0x82,0xFE,0x82,0x83,0xC2,0x80,0x00, 0x00,0x80,0x40,0x30,0x0F,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00 }。 //關(guān) unsigned char code hz19[32]={ 0x0,0x0,0x0,0x20,0x20,0x24,0x24,0xfc,0x24,0x24,0x20,0x20,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x10,0x20,0x1f,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, }。 //阻 unsigned char code hz11[32]={ 0x0,0x0,0x22,0x44,0x0,0xfc,0x4,0xe4,0x4,0xfc,0x0,0xf0,0x0,0xfe,0x0,0x0, 0x0,0x8,0x78,0x6,0x0,0x43,0x30,0xf,0x10,0x23,0x40,0x21,0x40,0x3f,0x0,0x0, }。 //使 unsigned char code hz4[32]={ 0x0,0x0,0x0,0xfe,0x2,0x22,0x22,0x22,0xfa,0x22,0x22,0x22,0x2,0xfe,0x0,0x0, 0x80,0x60,0x18,0x7,0x0,0x1,0x41,0x31,0xf,0x1,0x1,0x41,0x80,0x7f,0x0,0x0, }。 //讀入地址 Ack()。iNum。 Send(*(PData+i))。 PData=Data。 //寫保護(hù)，這里不使用 void mDelay(unsigned char j) { unsigned int i。 else temp=tempamp。_nop_()。 unsigned char temp1=0。 else Sda=0。 Scl=0。_nop_()。 } void NoAck(void) { Sda=1。_nop_()。_nop_()。_nop_()。_nop_()。 _nop_()。 WrToROM(wang,4,4)。 它包含了電路原理圖的圖形輸入、電路硬件描述語言輸入方式，具有豐富的仿真分析能力。 蕪湖信息技術(shù)職業(yè)學(xué)院畢業(yè)論文 （設(shè)計(jì)） 10 電路 原理圖 （如圖 6） 圖 6 電路原理圖 12345678RST9RXD/10TXD/11INT0/12INT1/13T0/14T1/15RW/16RD/17XTAL218XTAL119GND202122232425262728PSEN29ALE30EA313233343536373839VCC40U1 STC89C52RCVCCGND1VCC2Vo3RS4RW5E6DB07DB18DB29DB310DB411DB512DB613DB714PSB15NC16/RST17Vout18BLA19BLK20U2LCD12864 10KR1VCCC1+1V+2C13C2+4C25V6T2OUT7R2IN8R2OUT9T2IN10T1IN11R1OU