【正文】 第一組RS232電平輸入6V負(fù)電源濾波14T1OUT第一組RS232電平輸出7T2OUT第二組RS232電平輸出15GND地8R2IN第二組RS232電平輸入16VCC電源+5V 圖35 MAX232引腳功能及封裝216。圖36 MAX232通信接口電路圖36中，左邊虛線框內(nèi)的DB9連接器，既作為通信接口，又用做電源輸入。多腳并聯(lián)的方式可以減小插接件的接觸電阻。儲(chǔ)能電容可以在開機(jī)瞬間向系統(tǒng)提供較大電流，使單片機(jī)等正常啟動(dòng)。4 軟件電路設(shè)計(jì)根據(jù)本設(shè)計(jì)的應(yīng)用要求，軟件設(shè)計(jì)流程如圖4 1示。然后顯示驅(qū)動(dòng)程序查詢當(dāng)前燃亮的行號(hào)，從顯示緩存區(qū)內(nèi)讀取下一行的顯示數(shù)據(jù)，并通過串口發(fā)送給移位寄存器。 LED漢字左移程序分析漢字的左移程序步驟如下：216。216。216。這樣一直進(jìn)行下去，直到最后沒有漢字字碼為止。216。216。5 系統(tǒng)調(diào)試調(diào)試工作可分硬件調(diào)試和軟件調(diào)試兩個(gè)部分，調(diào)試方法如下：首先，硬件調(diào)試主要是先制作硬件電路板，然后用萬用表等工具對(duì)電路檢查，最后應(yīng)用程序進(jìn)行功能調(diào)試。然后，用仿真軟件進(jìn)行軟件調(diào)試，比如單片機(jī)C51編輯軟件KEIL，該軟件提供一個(gè)集成開發(fā)環(huán)境uVision，它包括C編輯器、宏編輯器、連接器、庫管理和一個(gè)功能強(qiáng)大的仿真調(diào)試器。但應(yīng)用此方法，仍需要十分了解所使用元器件的工作方式和管腳連接方式。在軟件調(diào)試過程中，曾遇到以下問題：（1） 當(dāng)硬件初次開機(jī)的時(shí)候，發(fā)現(xiàn)LED亮度不夠均勻。（2） 在調(diào)試按鍵的時(shí)候，當(dāng)一按下任意一個(gè)按鍵，系統(tǒng)顯示的就處于定格狀態(tài)，再按下按鍵則沒有任何反應(yīng)。（3） 由于本硬件設(shè)計(jì)中，對(duì)P0是復(fù)用的狀態(tài)，顯示程序的段碼和時(shí)鐘芯片的數(shù)據(jù)，都是通過P0傳輸?shù)摹? 結(jié)論經(jīng)過近兩個(gè)月的努力，終于順利完成了畢業(yè)設(shè)計(jì)。因?yàn)槭褂昧烁咚賳纹瑱C(jī)，使本系統(tǒng)的動(dòng)態(tài)刷新率，移動(dòng)速度等得到保障。在這近兩個(gè)月的畢業(yè)設(shè)計(jì)中，我們有艱辛的付出，當(dāng)然更多的是豐收的喜悅。致謝在本次畢業(yè)挑戰(zhàn)杯設(shè)計(jì)過程當(dāng)中，指導(dǎo)老師王躍東和其他老師以及同學(xué)們都給予了很大的幫助支持，王趙老師嚴(yán)謹(jǐn)?shù)闹螌W(xué)態(tài)度和務(wù)實(shí)的求知精神給我留下了很深的印象，他們鼓勵(lì)我孜孜不倦，銳意進(jìn)取，特別是在困難的時(shí)候，他有意識(shí)地培養(yǎng)我獨(dú)立思考和解決問題的能力。在此，對(duì)他們所給予的指導(dǎo)和幫助表示最衷心的感謝。sbit SCLK_595=P2^1。sbit G_74154=P0^4。 //xianshiuchar k,*s。uchar temp。int zz=0。uchar code Bmp[][32]={{0x00,0x08,0x43,0xFC,0x32,0x08,0x12,0x08,0x83,0xF8,0x62,0x08,0x22,0x08,0x0B,0xF8,0x10,0x00,0x27,0xFC,0xE4,0xA4,0x24,0xA4,0x24,0xA4,0x24,0xA4,0x2F,0xFE,0x20,0x00}, //溫{0x10,0x04,0x10,0x84,0x10,0x84,0x10,0x84,0x54,0xA4,0x52,0x94,0x52,0x94,0x90,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x20,0x84,0x20,0x84,0x40,0x04,0x00,0x04},//州{0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x04,0xFF,0xFE,0x01,0x00,0x02,0x80,0x02,0x80,0x02,0x40,0x04,0x40,0x04,0x20,0x08,0x10,0x10,0x0E,0x60,0x04,0x00,0x00},//大{0x22,0x08,0x11,0x08,0x11,0x10,0x00,0x20,0x7F,0xFE,0x40,0x02,0x80,0x04,0x1F,0xE0,0x00,0x40,0x01,0x84,0xFF,0xFE,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00},//學(xué){0x00,0x40,0x20,0x40,0x10,0x44,0x10,0x7E,0xFE,0x40,0x00,0x40,0x44,0x40,0x44,0x44,0x25,0xFE,0x25,0x04,0x29,0x04,0x09,0x04,0x1F,0x04,0xE1,0x04,0x41,0xFC,0x01,0x04},//站{0x01,0x04,0x7F,0x84,0x08,0x04,0x10,0x24,0x22,0x24,0x41,0x24,0x7F,0xA4,0x08,0xA4,0x0A,0x24,0x7F,0x24,0x08,0x24,0x08,0x24,0x08,0x04,0x0F,0x84,0xF8,0x14,0x00,0x08},//到{0x00,0x00,0x7F,0xF8,0x00,0x10,0x00,0x20,0x00,0x40,0x01,0x80,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00},//了 {0x00,0x00,0x01,0x80,0x03,0xC0,0x03,0xC0,0x03,0xC0,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x01,0x80,0x00,0x00,0x00,0x00},//！////{0x00,0x08,0x43,0xFC,0x32,0x08,0x12,0x08,0x83,0xF8,0x62,0x08,0x22,0x08,0x0B,0xF8,0x10,0x00,0x27,0xFC,0xE4,0xA4,0x24,0xA4,0x24,0xA4,0x24,0xA4,0x2F,0xFE,0x20,0x00}, //溫{0x10,0x04,0x10,0x84,0x10,0x84,0x10,0x84,0x54,0xA4,0x52,0x94,0x52,0x94,0x90,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x10,0x84,0x20,0x84,0x20,0x84,0x40,0x04,0x00,0x04},//州{0x04,0x40,0x04,0x44,0xFF,0xFE,0x04,0x40,0x01,0x00,0x02,0x80,0x04,0x40,0x19,0x30,0x21,0x0E,0xDF,0xF4,0x01,0x00,0x09,0x20,0x19,0x18,0x21,0x08,0x05,0x00,0x02,0x00},//茶{0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x41,0x04,0x41,0x04,0x41,0x04,0x41,0x04,0x41,0x04,0x41,0x04,0x41,0x04,0x41,0x04,0x41,0x04,0x7F,0xFC,0x40,0x04,0x00,0x00},//山{0x10,0x20,0x10,0x24,0x13,0xFE,0x1C,0x20,0x21,0xFC,0x21,0x04,0x7D,0xFC,0x91,0x04,0x11,0xFC,0xFD,0x04,0x11,0xFC,0x11,0x04,0x17,0xFE,0x18,0x88,0x11,0x06,0x02,0x02},//鎮(zhèn){0x01,0x04,0x7F,0x84,0x08,0x04,0x10,0x24,0x22,0x24,0x41,0x24,0x7F,0xA4,0x08,0xA4,0x0A,0x24,0x7F,0x24,0x08,0x24,0x08,0x24,0x08,0x04,0x0F,0x84,0xF8,0x14,0x00,0x08},//到{0x00,0x00,0x7F,0xF8,0x00,0x10,0x00,0x20,0x00,0x40,0x01,0x80,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00},//了 {0x00,0x00,0x01,0x80,0x03,0xC0,0x03,0xC0,0x03,0xC0,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x01,0x80,0x00,0x00,0x00,0x00},//！////{0x04,0x80,0x04,0x80,0x04,0x88,0x04,0x98,0x04,0xA0,0x7C,0xC0,0x04,0x80,0x04,0x80,0x04,0x80,0x04,0x80,0x04,0x80,0x04,0x80,0x1C,0x82,0xE4,0x82,0x44,0x7E,0x00,0x00}, //北{0x10,0x40,0x10,0x20,0x10,0x04,0x13,0xFE,0xFC,0x00,0x10,0x88,0x31,0x06,0x3A,0x8A,0x54,0x88,0x50,0x50,0x90,0x50,0x10,0x20,0x10,0x50,0x10,0x88,0x13,0x0E,0x1C,0x04},//校{0x00,0x08,0x3F,0xFC,0x20,0x00,0x28,0x08,0x24,0x18,0x22,0x20,0x21,0x40,0x20,0x80,0x21,0x40,0x22,0x30,0x24,0x18,0x28,0x08,0x20,0x00,0x20,0x04,0x3F,0xFE,0x00,0x00},//區(qū){0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xF8,0x38,0x1C,0x38,0x1C,0x38,0x1C,0x3F,0xF8,0x3F,0xF8,0x38,0x0C,0x38,0x0E,0x38,0x0E,0x38,0x1C,0xFF,0xF8,0x00,0x00,0x00,0x00},//B{0x00,0x08,0x3F,0xFC,0x20,0x00,0x28,0x08,0x24,0x18,0x22,0x20,0x21,0x40,0x20,0x80,0x21,0x40,0x22,0x30,0x24,0x18,0x28,0x08,0x20,0x00,0x20,0x04,0x3F,0xFE,0x00,0x00},//區(qū){0x01,0x04,0x7F,0x84,0x08,0x04,0x10,0x24,0x22,0x24,0x41,0x24,0x7F,0xA4,0x08,0xA4,0x0A,0x24,0x7F,0x24,0x08,0x24,0x08,0x24,0x08,0x04,0x0F,0x84,0xF8,0x14,0x00,0x08},//到{0x00,0x00,0x7F,0xF8,0x00,0x10,0x00,0x20,0x00,0x40,0x01,0x80,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x05,0x00,0x02,0x00},//了 {0x00,0x00,0x01,0x80,0x03,0xC0,0x03,0xC0,0x03,0xC0,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x00,0x00,0x00,0x00,0x01,0x80,0x01,0x80,0x00,0x00,0x00,0x00},//！}。 for(。dt) for(bt=0。bt++)。 for(x=0。x++) { temp=temp1。 SCLK_595=1。 _nop_()。 } }void clean(void){ uchar i,j。i16。jBLKN+1。 } void move(void) { uchar *m,i,j。i16。jBLKN。dispram[i][j]。 *m=*m|*(m+1)7。 }} void LeftMove(uchar *p){ uchar i。i16。 for(i=0。i++){ if(ff==0){ move()。 } } for(i=0。i++) dispram[i][BLKN]=*(p+1