The hardware circuit boards are produced by a laser photoplotter according to the gerber files gererated from the schematic ( sch ) documents and the printed circuit board ( pcb ) documents . the cplds , programmed with the verilog hardware description language ( verilog hdl ) , were completed after four steps : design , simulation , synthesis and fit . the software is developed with c language using direct i / o to communicate with the device through the isa bus computer interface
其硬件電路由專業(yè)軟件設計出原理圖sch和印刷電路圖pcb生成，再gerber文件，然后光繪而成， cpld芯片編程（采用硬件描述語言veriloghdl ）經(jīng)過設計、模擬、裝配、下載完成，高級軟件編程采用c語言i / o方式利用isa總線接口與外設進行通信。