一、问题的提出TRS-80 Model 100虽然是一种袖珍计算机,但是它以80C85作CPU,功能较为完善,速度较快,价格甚为便宜.我们试图以Model 100作为过程控制和数据采集计算机,但碰到了一个突出的问题,就是该系统采用40总线,备用的标准插件板没有,开发起来甚为困难. 我们知道,S-100总线是目前八位微处理机较常用的总线,各个脚号功能定义较清楚,时序关系很明确,利于微计算机的开发应用.Cromemco公司生产的S-100总线标准插件板较 First, the issue put forward TRS-80 Model 100 Although it is a pocket computer, but it as a CPU for the 80C85, function more perfect, faster, the price is very cheap.We tried to Model 100 as a process control and data acquisition computer, But encountered a prominent problem is that the system uses 40 bus, spare standard plug-in board is not developed very difficult.We know that the S-100 bus is the more commonly used eight-bit microprocessor bus, each pin Function definition is clearer, the timing relationship is clear, conducive to the development and application of micro-computer .Cromemco produced S-100 bus standard plug-in board