CJS—41型微讨算机控制的电子万能试验机之所以精度高首先取决于采样的准确,其次由于它对采样值处理的方法合理,最终在于输出时能尽量减少精度的损失。本文简单介绍了为达到这些目的,在微处理机的硬件选用,软件设计和接口处理三方面做的工作,还介绍了 A/D 模板、D/A 模板和开关量输出模板的使用。 CJS-41 micro-computer-controlled electronic universal testing machine The reason why the high precision first depends on the accuracy of sampling, and secondly because of its sample value processing method is reasonable, the final output is to minimize the loss of accuracy. This paper briefly introduces the work of three aspects of microprocessor hardware selection, software design and interface processing to achieve these goals. It also introduces the use of A / D template, D / A template and switch output template.