包含了ARM的几个功能试验 如触摸屏 智能仪表手持设定器 工控自动化模拟量输入输出控制 以及RS232通信 及以太网通信-ARM contains several functional tests, such as hand-held touch-screen smart meter setter Industrial Automation Analog input and output control, and RS232 communications, and Ethernet Commun