Abstract
Over time, the completion of the computer revolution, the rapid development of information highway, industrial control and automation of production has been closely linked. Since the eighties the twentieth century, the rapid development of the international single-chip, single-chip applications in depth, an endless stream of new technologies. Application of single-chip technology is a relatively new engineering technology, with its connotations of the development of SCM. In motor control, the single chip not only played a small, easy to control, superiority, and the price than any other micro-controller or PC-low. Another advantage of single-chip, that is, can be embedded into a variety of apparatus, equipment, supercomputers and it is difficult network. The design of fault-tolerant serial communication system of the motor control part of digital machines, the design of the DC motor can achieve alone on / off, increase / reduce speed, fault error functions, but also through the acceptance of PC-PC to complete the above instructions function. This system not only played a small single-chip, low cost, more in line with the bottom edge control, but also to make up for the single-chip systems are relatively simple man-machine interface, it is rather difficult to carry out a large amount of data is relatively complex operations, has a certain practical value.
Keywords：Microcontroller, serial communication, PC machines, DC motors
