RC500读卡芯片的驱动源码（C51+ASM），在上传的压缩包中以Keil工程的形式提供，源码功能已在开发板上完美验证。-RC500 chip card reader driver source code (C51+ ASM), in From the compression package to Keil works provided in the form of source functions have been perfect in the development of on-board