單片機(jī)課程設(shè)計(jì)4x4矩陣鍵盤顯示-全文預(yù)覽
【正文】 盤中，每條水平線和垂直線在交叉處不直接連通，而是通過一個(gè)按鍵加以連接。主要內(nèi)容如下：，進(jìn)行鍵盤控制系統(tǒng)的整體研究與設(shè)計(jì)；；。矩陣式鍵盤簡介：矩陣式鍵盤又稱行列鍵盤，它是用N條I/O線作為行線，N條I/O線作為列線組成的鍵盤。最常見的鍵盤布局如圖11所示。圖2 矩陣式鍵盤電路 12864顯示器12864點(diǎn)陣液晶顯示模塊（LCM）就是由128*64個(gè)液晶顯示點(diǎn)組成的一個(gè)128列*64行的陣列。圖形或漢字的點(diǎn)陣信息由自己設(shè)計(jì)，問題的關(guān)鍵就是顯示點(diǎn)在液晶屏上的位置（行和列）與其在存儲(chǔ)器中的地址之間的關(guān)系。512*8 bits RAM中某個(gè)存儲(chǔ)單元的地址由頁地址（Xpage,0~7）和列地址（Yaddress,0~63）確定。（注意：二進(jìn)制的高低有效位順序與行號(hào)對(duì)應(yīng)關(guān)系因不同商家而不同）存放一個(gè)顯示塊的RAM區(qū)稱為存儲(chǔ)頁。 圖3 液晶顯示4*4矩陣鍵盤按鍵號(hào)整體電路 以下是通過preteus仿真后得到的部分結(jié)果截圖 圖4 仿真結(jié)果圖 三、實(shí)驗(yàn)心得與體會(huì) 通過為期兩周的單片機(jī)課程設(shè)計(jì)，不僅加深了對(duì)單片機(jī)理論知識(shí)的理解，而且鍛煉了我們的動(dòng)手能力以及創(chuàng)新精神，讓我意思到理論和實(shí)踐結(jié)合的重要性。把理論知識(shí)和實(shí)際設(shè)計(jì)的結(jié)合鍛煉了我的綜合運(yùn)用所學(xué)專業(yè)知識(shí)的能力，而且通過對(duì)整體的掌控，對(duì)局部的取舍，以及對(duì)細(xì)節(jié)的斟酌處理，都使得我的能力得到了鍛煉，實(shí)戰(zhàn)經(jīng)驗(yàn)得到豐富。遇到了許多困難，也很感謝老師和同學(xué)的悉心幫助，使得我能順利完成這次課程設(shè)計(jì)。sbit CS2=P3^3。uchar code shuzi[16][32]={{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*0,0*/ {0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*1,1*/ {0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*2,2*/ {0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*3,3*/ {0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*4,4*/ {0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*5,5*/ {0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*6,6*/ {0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x0
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