HD7279A是具有串行接口的智能显示芯片，可同时驱动8位共阴式数码管。此程序即是用51单片机驱动HD7279A的非典型应用---HD7279A从低到高驱动六位共阴数码管显示正负任意数字-HD7279A is a serial interface of the smart display chip that can drive a total of 8 vaginal digital tube. This process that is using 51 atypical HD7279A MCU-driven applications--- HD7279A from low to high-driven six of Yin digital tube display any number of positive and negative