基于EWB5.0的简单四路抢答器的设计

Responder entertainment in modern society the most common and most commonly used in an electronic device. In this article, commonly used Responder of the three basic use requirements starting in the EWB5.0 software platform designed and developed a four-way Responder system, which system consists of seven-segment display decoder, nand flip-flops, nor flip-flops and other electronic components, achieving a certain period of time to stop timing, zero, all the keys invalid, within the specified time a person is invalid keypad buttons for other people, and those who first press the button, when the key people at the same time, the system without output functions. The system is practical, simple and has a low cost.