为了实现AVR单片机对LED点阵显示系统的控制，采用ATmega128作为下位机MCU，通过接收上位机发送的显示内容和显示模式的串行信号，实现16×32高亮点阵屏的一行多个文字或符号的显示。系统实际运行稳定，显示效果良好，便于多块点阵屏的扩展，作为高职学生的大学生实践创新有较高的实践意义。%In order to control LED matrix screen systems by AVR SCM,the display of characters and symbols in one line on 16×32 highlight matrix screen was realized by using ATmega128 as the lower computer MCU,and receiving the display con⁃tent and display mode serial signal form host computer. The system is stable and its display effect is good. It is convenient for ex⁃pansion of more lattice display screen,and has high practical significance for innovative practice of higher vocational college stu⁃dents.
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