單片機(jī)應(yīng)用技術(shù)（經(jīng)典項(xiàng)目化案例式新形態(tài)活頁教材）第5版 課件 p125-4.4.1 LED大屏幕顯示器的結(jié)構(gòu)及原理

4.4.1LED大屏幕顯示器的結(jié)構(gòu)及原理《單片機(jī)應(yīng)用技術(shù)（C語言版）》深圳職業(yè)技術(shù)學(xué)院LED點(diǎn)陣顯示器8列8行一個(gè)點(diǎn)是一個(gè)像素8*8LED點(diǎn)陣的內(nèi)部結(jié)構(gòu)+-行線列線8行8列共64個(gè)LED8*8LED點(diǎn)陣的引腳排列與命名C1C2C3C4C5C6C7C8(A)(B)(C)(D)(E)(F)(G)(H)R1(7)R2(6)R3(5)R4(4)R5(3)R6(2)R7(1)R8(0)8*8LED點(diǎn)陣的實(shí)際引腳圖8*8LED點(diǎn)陣的點(diǎn)亮原理C1C2C3C4C5C6C7C8(A)(B)(C)(D)(E)(F)(G)(H)R1(7)R2(6)R3(5)R4(4)R5(3)R6(2)R7(1)R8(0)10+-點(diǎn)亮原理行：輸出高電平列：輸出低電平單片機(jī)如何控制LED點(diǎn)陣顯示圖形？8*8LED點(diǎn)陣的引腳排列與命名C1C2C3C4C5C6C7C8(A)(B)(C)(D)(E)(F)(G)(H)R1(7)R2(6)R3(5)R4(4)R5(3)R6(2)R7(1)R8(0)單片機(jī)控制一個(gè)8*8LED點(diǎn)陣C1C2C3C4C5C6C7C8(A)(B)(C)(D)(E)(F)(G)(H)R1(7)R2(6)R3(5)R4(4)R5(3)R6(2)R7(1)R8(0)51單片機(jī)P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.71K一個(gè)實(shí)用的8*8LED點(diǎn)陣控制電路及點(diǎn)亮一個(gè)點(diǎn)P1.3=1；P0.2=0；漂亮的圖形視覺效果：多個(gè)點(diǎn)同時(shí)點(diǎn)亮點(diǎn)陣LED多個(gè)點(diǎn)同時(shí)點(diǎn)亮的顯示原理—?jiǎng)討B(tài)掃描逐列掃描法逐行掃描法8*8LED點(diǎn)陣的逐行掃描法逐行掃描法中行數(shù)據(jù)與列數(shù)據(jù)的設(shè)計(jì)行列數(shù)據(jù)00000001B，即0x0100000010B，即0x0200000100B，即0x0400001000B，即0x0800010000B，即0x1000100000B，即0x2001000000B，即0x4010000000B，即0x8011100111B，即0xE711011011B，即0xDB10111101B，即0xBD01111110B，即0x7E01111110B，即0x7E10111101B，即0xBD11011011B，即0xDB11100111B，即0xE7低位數(shù)據(jù)高位列行數(shù)據(jù)低位高位一幀數(shù)據(jù)一幀數(shù)據(jù)