关于44b0的开发板的pcb和sch图可在protel下直接运行 只需自己建立文件库即可-44b0 on the development board and the pcb sch Protel plans in direct their operations only the document can be established

常用AD6眼器件封装文件库，包括SCH原理图文件库和对应的PCB元件库。-Common eye AD6 file library device package, including schematics SCH file library and the corresponding PCB component libraries.