8x8點(diǎn)陣顯示模塊

1、8X8發(fā)光二極管點(diǎn)陣模塊一、原理圖點(diǎn)陣模塊原理圖二、實(shí)物圖點(diǎn)陣模塊實(shí)物圖3、 模塊介紹1、該模塊電源由外接電源端使用杜邦線引入+5V電壓，由電源開(kāi)關(guān)控制，發(fā)光二極管為電源指示燈。2、控制信號(hào)由控制端口引入，由74HC154控制三極管驅(qū)動(dòng)點(diǎn)陣行，74HC595控制驅(qū)動(dòng)列。3、在點(diǎn)陣模塊上可根據(jù)自己的意向操作顯示不同的字符、圖形以及漢字，最大占數(shù)64點(diǎn)。四、相關(guān)知識(shí)8X8點(diǎn)陣LED工作原理說(shuō)明:8X8點(diǎn)陣共需要64個(gè)發(fā)光二極管組成，且每個(gè)發(fā)光二極管是放置在行線和列線的交叉點(diǎn)上，當(dāng)對(duì)應(yīng)的某一列置1電平，某一行置0電平，則相應(yīng)的二極管就亮。五、任務(wù)在8x8點(diǎn)陣模塊上依次循環(huán)顯示漢字“中”、“華”、“人

2、”、“民”、“共”、“和”、“國(guó)”。六、接線說(shuō)明用杜邦線將單片機(jī)P2.0P2.7端口連接到74LS245輸入端口A0A7；74LS245輸出端口B0B7連接到點(diǎn)陣的行控制端口H0H7；將單片機(jī)P0.0P0.7端口連接到點(diǎn)陣的列控制端口L0L7。七、流程圖點(diǎn)陣流程圖開(kāi)始結(jié)束點(diǎn)陣顯示寫(xiě)入程序八、程序#include/頭文件#define uint unsigned int /宏定義#define uchar unsigned char/宏定義uchar code tab=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff;/定義顯示的數(shù)組tabuchar co

3、de tab0=0x00,0x1c,0x14,0xff,0xff,0x14,0x1c,0x00,0x00;/定義顯示的數(shù)組tab0uchar code tab1=0x24,0x22,0x2f,0xf0,0xf0,0x2f,0x2f,0x2f,0x00;/定義顯示的數(shù)組tab1uchar code tab2=0x80,0xc0,0x60,0x3f,0x3f,0x60,0xc0,0x80,0x00;/定義顯示的數(shù)組tab2uchar code tab3=0x00,0x7f,0x55,0x1d,0x15,0x35,0x57,0x40,0x00;/定義顯示的數(shù)組tab3uchar code tab4=

4、0x08,0x4a,0x2f,0x0a,0x0a,0x2f,0x4a,0x08,0x00;/定義顯示的數(shù)組tab4uchar code tab5=0x4e,0x29,0xff,0x29,0x48,0x3c,0x24,0x3c,0x00;/定義顯示的數(shù)組tab5uchar code tab6=0xff,0xcb,0xcb,0xff,0xdb,0xeb,0xff,0x00,0x00;/定義顯示的數(shù)組tab6uint i; /定義全局變量i/*/延時(shí)函數(shù) 在12Mhz晶振頻率/大約1ms的延時(shí) void delay(uint z)uint x,y;for(x=z;x0;x-) for(y=245;y

5、0;y-);/*/顯示漢字“中”void display0()for(i=0;i9;i+)P0=tabi;P2=tab0i;delay(1);/*/顯示漢字“華”void display1()for(i=0;i9;i+)P0=tabi;P2=tab1i;delay(1);/*/顯示漢字“人”void display2()for(i=0;i9;i+)P0=tabi;P2=tab2i;delay(1);/*/顯示漢字“民”void display3()for(i=0;i9;i+)P0=tabi;P2=tab3i;delay(1);/*/顯示漢字“共”void display4()for(i=0;i

6、9;i+)P0=tabi;P2=tab4i;delay(1);/*/顯示漢字“和”void display5()for(i=0;i9;i+)P0=tabi;P2=tab5i;delay(1);/*/顯示漢字“國(guó)”void display6()for(i=0;i9;i+)P0=tabi;P2=tab6i;delay(1);/*/主函數(shù)void main()uint a;/定義局部變量awhile(1)/while循環(huán)語(yǔ)句for(a=0;a50;a+)/for循環(huán)語(yǔ)句display0();/調(diào)用顯示函數(shù)0delay(500);/延時(shí)500msfor(a=0;a50;a+)/for循環(huán)語(yǔ)句display1();/調(diào)用顯示函數(shù)1delay(500);/延時(shí)500msfor(a=0;a50;a+)/for循環(huán)語(yǔ)句display2();/調(diào)用顯示函數(shù)2delay(500);/延時(shí)500msfor(a=0;a50;a+)/for循環(huán)語(yǔ)句display3();/調(diào)用顯示函數(shù)3delay(500);/延時(shí)500msfor(a=0;a50;a+)/for循環(huán)語(yǔ)句display4();/調(diào)用顯示函數(shù)4delay(500);/延時(shí)500msfor(a=0;a50;a+)/for循環(huán)語(yǔ)