增强并行口 meaning in Chinese
epenhanced parallel port
Examples
- The virtual oscillograph to measure voltage is brought into the system . its daq board is based on epp and 8051 is used as the controller
本系统集成了虚拟仪器完成电压测量，制作了基于增强并行口epp 、以8051为控制核心完成量程自动转换的数据采集板。 - The paper lays a strong emphasis on discussing the realization of the autocontrol of raster scanning of the scanner in x - y dimension , the " tapping " of the cantilever of the tappingmode afm by a direct digital synthesizer . then a method of parallel communication between dsp and pc in epp mode is given . finally , the author discussed the digital pid closed loop control of the scanner in z - direction , the automatic approaching of the tip using step - motor , and also some electro - magnetic interferences
论文首先简单介绍了扫描探针显微镜的发展、分类、工作原理及应用；接着对ti公司的tms320vc5402dsp的特点及外围扩展作了简单介绍；然后分章节重点讲述了利用vc5402dsp实现扫描探针显微镜的核心部件? ?压电陶瓷管的x向和y向的光栅扫描控制；借助直接数字集成器( dds )实现轻敲式原子力显微镜的微悬臂的“轻敲” ； vc5402dsp的主机接口( hpi )与pc机在增强并行口( epp )模式下的通信；论文最后还介绍了扫描管z向的数字pid闭环控制，步进电机的自动进针，并对实际出现的一些电磁干扰问题作了讨论。