【作者】 谢家兴； 王建； 刘洪山； 甄劲红；

【Author】 Xie Jiaxing1 Wang Jian1 Li u Hongshan1 Zhen Jinghong1(1 College of Engineering,South China Agricultural University,Guangzhou,Guangdong,510642,China)

【机构】 华南农业大学工程学院；

【摘要】 本设计是基于LPC1300USB总线(设备)的LED显示屏控制卡。通过上位机对将要显示的内容(包括图像和文字)进行提取位图信息,经过适当的算法对提取到的信息进行变换,从而得到点阵信息。而且,上位机可以进行设置控制卡的相关参数,例如字体大小、字体类型以及动态效果等等。上位机完成相关处理后,通过USB将相关信息发送给控制卡,控制卡通过读取缓冲区的内容,进行适当处理后,驱动LED屏显示内容。更多还原

【Abstract】 The design is based on LPC1300 for LED Display Screen Controlling Card of USB Bus(Device).Through the host computer will display the content(including the image and text) to extract the bitmap information,it receives from lattice information that the appropriate algorithm extract the information of being transformed.Moreover,the host computer can set up the relevant parameters of controlling card,such as font size,font type and the dynamic effects and so on.After the completion of the relevant host computer through the USB about related information will be sent the controlling card.The controlling card by reading the contents of the buffer drive LED screen display after the contents of the buffer are dealt with properly.更多还原