利用LabVIEW产生字模的LED显示电路设计.pdf

2010年第 23卷第 11期 # E lectron ic Sci1 Tech1 /Nov1 15, 2010 LabV IEW LED , ( , 11602 ) 针对实际应用设计出一种基于 LabVIEW 与单片机控制的 LED 汉字显示屏, 特点是通过在 LabV IEW 进 行图像信息扫描的方式, 得到任意汉字的字模, 然后经串口传递给单片机控制显示汉字该方法字模由上位机生成, 省去了字模库, 简化了显示过程, 实用性强 LabV IEW; 单片机; LED显示 TP273 A 1007- 7820( 2010) 11- 07 - 03 D esign of a LED D isp lay U sing LabV IEW to G enerate M atr ix Zhao Jia, L iu Yunhong ( School ofE lectricalEngineering, Dalian University of Technology, Dalian 11602 , China) Abstract A design of aLED d isplay based on LabVIEW andMCU for practical application is introduced. A r- b itrary character matrixes are achieved by means of mi age inform ation scann ing and then transferred toMCU. In th is w ay the characterm atrix is generated from PC, and thus the font store can be om itted and the display process is smi - plified, which enables the display to have strong practicability. K eyw ords LabVIEW; MCU; LED disp lay LabV IEW = - 160 ( 1) , 16@ 16, 32 b it, , , = [ (- 1) @ 9 + - 1] @ 32 ( 2) , 32 b it LED , 1 LabV IEW : [ 1] , HZK 16, HZK 16 32 b it, 32, , , [ 1] 图 1 总体结构框图