射频卡读卡电路和程序,以及网络芯片8019的电路和程序,功能是实现一个射频卡读卡,读出数据传输到上位机.通过网络.-RF card reader circuit and procedures, as well as the 8019 network chip circuit and procedures, function is the realization of a RF card readers,读出数据transmitted to the host computer. Through t