双口RAM非竞争模式下的并行数据通讯研究

Research on parallel communication based on dual-port RAM in the noncompetitive pattern

在深入研究双口RAM IDT7132的基础上,结合当前激光雕刻机中用传统的串、并口进行数据传输时所带来的传输速率低的问题,介绍了一种利用PC打印机并行接口与双口RAM IDT7132连接,在非竞争模式下实现单片机与PC机之间并行通讯的方法。该方法应用于激光加工雕刻工作时上、下位机的数据传输,在实际的加工过程中取得了良好的效果。

The dual-port RAM IDT7132 is introduced,and the dual-port RAM IDT7132 and the printing interface of the PC are connected to achieve parallel communication between the single-chip CPU and the PC in the noncompetitive pattern, which is to solve the problem of slow velocity of serial transmission in the design of traditional laser engraving machines. The presented method is applied to data transmission between the single-chip CPU and the PC in the design of a laser engraving machine, and good effect is obtained.