TP801单板机(或类似机),由于其价格低廉,结构为敞开型,具有简易的EPROM开发功能,易于根据实际需要进行扩充,因此,正在日益广泛地应用于小型工业控制和其他简易实时控制.但在应用中,广大用户又都深深感到TP801机存在一些不可靠、不安全因素,亟待从电路上予以改进,才能够得到较彻底的解决.笔者结合工作,对TP801机作了两项改进,取得了较好的效果.现介绍于下,供广大读者参考. The TP801 single-board computer (or similar) is increasingly used for small industrial control and other simple real-time control due to its low cost, open structure, simple EPROM development capability and ease of expansion based on actual needs However, in the application, the majority of users are deeply felt TP801 machine there are some unreliable, unsafe factors that need to be improved from the circuit to be able to get a more thorough solution. The author combined with the work of the TP801 made two Improved, and achieved good results. Now introduced in the next, for the majority of readers reference.